,Programmed bi{!~J i~l'i(JdiliJ'; ~n Ol!:eQno~ra~ · PDF file- 2 - List of fish identified and...
Transcript of ,Programmed bi{!~J i~l'i(JdiliJ'; ~n Ol!:eQno~ra~ · PDF file- 2 - List of fish identified and...
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This series includes unpublished preliminary reports and data records not intended for general distribution. They should not be referred to in publications with~ out clearance from · the issuing Board establishment and without clear indication of their manuscript status.
FISHERIES RESEARCH BOARD OF CANADA
MANUSCRIPT REPORT SERIES
No. 926
DATA RECORD
Number, size and food of larval and juvenile fish caught with an Isaacs-Kidd trawl in the
surface waters of the Strait of Georgia April 25-29, 1966
by
w. E. Barraclough
Biological Station, Nanaimo, B.C.
Pacific Oceanographic Group
Septe:mher 1967
Programmed by The Canadian Committee on Oceanography
Data Record
Number, size and food of larval and juvenile fish caught with an Isaacs-Kidd trawl in the surface waters of the
Strait of Georgia April 25-29, 1966 .
by
W,E. Barraclough
INTRODUCTION
This report contains the results of the data collected relating to Lhe number, size and food compositi.on of larval and juvenile fish caught in the surface waters of the Strait of Georgia with a 6-foot Isaacs-Kidd midwater trawl during the period April 25-29, 1966. The trawl was constructed of 1/8 inch mesh knotless nylon netting and was towed clear of the vessel's wake at 6 knots, with the headline just breaking the surface of the water .
This report is the second in a series of data reports concerning larval fish caught by surface trawls and other gear in .the Strait of Georgia during 1966.
Personnel:
R.J, LeBrasseur T.R . Parsons K. Stephens
Vessel:
CoN .A. V. "Laymore"
Measurements of larval fish and invertebrates
The length of all fish was taken from the anterior part of the snout or upper lip to the end of the central rays of the caudal fin . This measurement is referred to as the fork length .
For the length of copepods only the globular anterior portion of the body or metasome length was measured . Total length was taken of all other invertebrates found in the stomachs of larval and juvenile fish.
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List of fish identified and examined for stomach contents
Scientific name
Entosphenu~ tridentatus Lampetra ayres~ Clupea ~allasii (larval) 9ncorhynchus gorbuscha Oncorhynchus ~s~~ytsc~ Oncorhynchus ket~ 2!!corhynchus nerka Thaleicht~ ~ificus Spirinchus dilatus Leur~loss~ stilbius Theragra chalcogrammus BOTRIDAE ~ PLEURONECTIDAE Hexagrammos decagrammus Ophiodon elongatus COTTIDAE
Scorpaenichthys marmoratus Hemilepidotus heml.lepidotus Gilbertidia . sigalutes Ps~chrolutes paradoxus Rhamphocottus richardsoni
AGONIDAE Gasterosteus aculeatus Syngna thus gr iseo 1 inea tus Anarrhichthys ocellatus STICHAEIDAE
Lumpenella longirostris Lumpenus sagitta
Pholis sp. Ammodytes hexapterus (larval)
(post larval) (adult)
Common name
Pacific lamprey River lamprey Pacific herring Pink salmon Chinook or spring salmon Chum salmon Sockeye salmon Eulachon Longfin smelt Smoothtongue Whiting or Pollock Sanddabs Flounders Kelp greenling Lingcod Sculpins Cabezon Red Irish Lord Soft sculpin Tadpole sculpin Grunt sculpin Poachers Threespine stickleback Pipefish Wolf- eel Pricklebacks Longsnout prickleback Snake prickle back Gunnel Pacific sandlance
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ay
CI
'P-B
'P-4
'0 ·P-17 '0' .p-16
'P-3 E' 'P-15
N
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00
Location of the stations, where tows were made
with an Isaacs-Kidd trawl, April 25-29, 1966.
-5-
Location: Station #1 Lat: 49 0 18~ 1 IN. IJang: 12.3" 51' W. Strait of Georgia
Time (set-hauled net): 1035 - 1055 Dateg April 25 9 1966
Tow Number: A - 1 Course =rnagnetic g 20.3 c
Remarksg Miller net and I~ K. surface travl Depth bottom - 215 fathoms
Vessel = C.N.A.Vo flLaymore" Speed = 6 knots
=---,--~------------------------------------------------------------Average Range of length Number length frequencies
Species of Fish Caught , Caught nun. mIn. ~'-- - ._-_._------ ---- ---Theragra chalcogrammus 1 19 Hexagrammos decagrammus ' 12 28 20 - 42 Ophiodon elongatus 14 33 ' 27 - 36 STICHAEIDAE ' 3 26 23 - .30 AmInodytes hexapterus post larval 3 34 31 ~ 36
Fork ___________ S10!!la£ILC.Qn1ent ,§! ________
Species Fish Length , Number EJeamined mmo Type of Organism - Species Organisms Size mm.
'1'. chalcogrammus 19 Cope pod 1 0.9 Eggs ca 10 0 0 1
R ,0 decagrammus 20 Copepods 5 0 ,, 2 - 0 0 4 26 Copepods 38 0 • .3 - 103 33 Copepods 16 0 ~ 8 ,= 207 L~2 Copepods 10 1.8 = 3.0
0 0 elongatus 27 Cope pods ea 22 ' 005 - 1 . 5 33 Cope pods '1 0 ~ 7 .. 2.0
Eggs ca 25 001 36 Copepods 2 1.2
Eggs ca 20 0.1 STl CHM ID AY.~ 23 Cope pods ca 15 0,,4 = 0.8
30 Cope pods 23 0~4 ~ 0,,9 Eggs ca 70 o~ 1
A. hexapterus 36 Cope pods ca 22 0.4 ~ 1.0 Eggs ca 70
.31 Oopepoda ca 26 0.3 - 100 Eggs ca 15 0.1
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Location~ Station #1 Lat: 49 0 18. l' N. Long~ 12.3 0 51 'i<!. Strait of Georgia
Time (set-hauled net) : 1100 - 1120 Dateg April 25» 1966
Tow Numben A - 2 Conrse=magneticg
Remarks ~ Miller net and 10 K. surface trawl Depth bo't.tom ~ 212 fathoms
Vessel ~ C.N.A.V. "Laymore ff
Speed - 5 ·to 6 knots
Spe cies of Fl sh Caught
Hexagrammos decagrammus
Ophiodon elongatus
Hemi lepidotus hemilepidotus
STICHAEI DAE
Number Caught
1.3
24
2
5
Ammodytes hexapterus post larval 7
Fork
Average Range of length length frequencies
mm . 0 mm.
25 17 - .36
28 21 - .3.3
18 16 ~ 20
22 18 = 25
.3.3 27 ~ 42
Stomach Contents -~--------------~--~-------Species Fish Length Number
Examined IDIno Type of Organism - Species Organisms Size IDIn.
Ho decagrammus 22 Cope pods ca 18 0 • .3 - 0.7 28 Cope pods ca 14 0.4 -1.6 .36 Copepods 26 0.8 - 202
O. elongatus 22 Cope pods 2 0.9 - 107 Eggs oa 55 0 01
28 Copepoda 6 0 0 8 - 105 31 Copepods 10 005 - 108
Ho hemilepidJtus 20 Copepoda 8 0 0 5 - 109
STICHAE1DAE 20 Copepods .3 0 • .3 - 009 Eggs 2 Oa 1
25 Copepods 7 007 - 1.0
Ao hexapterus .34 Copepoda 22 002 ~ 100 42 Cope pods .3 1 0 0
Locatiom Station 11 A - BJ' Strait of Georgia
Date~ April 25~ 1966
Course-magneticg 120 '"
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49° 18 l' N. to Lat: 49° 14 8' N~
Time (set-hauled net):
To' .... Number: 3
123" 51' W ~ to Lohg: . 1230 45~ 5' 'W~
1200 - 1230
Remarks g Mi11er net and 10 Ko surface trawl Depth bottom ~ 220 fathoms
Vessel - C.N.A.V. f'Laymore fl
Speed - 5 knots
Species of Fish Caught
Oncorhynchus gorbuscha
Oncorhynchus keta
Theragra chalcogrammus
Hexagrammos decagrammus
Ophiodon elongatus
Hemilepidotus hemilepidotus
STICHAEIDAE
Ammodytes hexapterus post larval
Number Caught
6
1
3
145
31
3
13
2
Average length
InIll.
36
35
16
25
28
21
26
36
. Range of length frequencies
IJUll(,)
32 - 42
15 = 17
17 - 49
19 - 39
19 - 22
20 ~ 30
33 - 38
- .- ..-. ... - -- - - ...
Fork __________ §t2m~ch gOD,tSin1s _________ Species F'ish Length Number Examined mID 0 Type of Organism - Species Organisms Size IDffiQ
~ ---OQ gorbuscha 30 Copepods ca 18 0.4 = 108
32 Copepods ca 138 002 - 295 42 Cope pods ca 100 006 - 205
0 0 keta 35 Copepods ca 10 202
To chalcogrammus 15 Nil 17 Cope pods 9 0 03 - 009
Ho decagrammus 21 Nil 26 Cope pods 5 0 05 - 100 32 Cope pods ca 50 0 0 3 - 204 35 Copepods 15 009 - 200 49 Copepoda ca 40 0 0 6 = 204
Amphipod 1 102
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Fork __________ .§t2m~ch QOllt~n1a _________ Species Fish Length Number Examined mmo Type of Or gani SIn - Species Organisms Size mmo
00 elongatua 22 Copepoda 13 003 ~ 103 24 Cope pods 10 007 - 102
Eggs ca 12 001 29 Copepoda 5 105 39 Cope pods 19 OoB ~ 202
Ho hemilepidotus 19 Copepoda 3 107-300 22 Copepoda 13 205
STICHAEIDAE 19 Copepoda 13 0 0 3 - 0 07 20 Copepods 2 OoB - 103
Eggs 9 0 01 . 30 Cope pods 37 002 - 105
Ao hexapterus 3B Copepoda 16 006 - 1 0 0
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Location g Station tlBu . La t: 49,0 14. 8' N. . Long:12J 045. 5 'w •. Strait, of Georgia
Time (set-hauled net): 1300 - 1320 Date8 April 25, 1966
Tow Number: 5 C t " 120" ourse-magne lCg
Remarksg Miller net and I. K. surface trawl Depth bottom - 210 fathoms
Species of Fish Caught
Oncorhynchus gorbuscha
Theragra chalcogrammus
Hexagrammos decagrammus
Ophiodon elongatus
Hemilepidotus hemilepidotus
Lumpenella longirostris
Lumpenus sagitta
Number · . Caught
3
21
47
60
2
1
66
Ammodytes hexapterus post larval 2
Fork
Vessel - CoN.A.Vo "Laymore" Speed - 5 knots
Average Range of length length frequencies
IDDlo IDDlo
35 34 .. 5 - 35
16 12 - 18
22 16 - 29
25 18 - 35
1805 18.5 - . ..
26
25 14 - 33 27 27
Stomach Contents --------------------------Species Fish Length Number Examined mIn" Type of Organism - Species Organisms Size ffiIllo
Ou gorbuscha 34 .. 5 Cope pods 14 L5 - 201 35 Copepoda 87 0 0 5 - 0 0 7 35 Cope pods 36 0 .. 7 - 1 .. 2
To chalcogrammus 13 Copepoda 3 0 .. 3 - 004 16 Cope pods 11 0 0 5 = 006 16 Cope pods 3 003 17 Cope pods 1 0 .. 8 17 Cope pods 2 0.,4
Ho decagrammus 19 Cope pods 7 003 - 004 21 Cope pods 17 0 0 3 - 1..0 22 Copepods 3 0 05 = 006
" 13 0 03 26 Cope pods 6 0 0 3 - 0$5 27 Cope pods 22 0.,3 - OQ8
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Fork ___________ S1oma.Qh_C.Q.n1ent§. ________ Species Length Number Examined mmo Type of Organism - Species Organisms Size Inmo
00 elongatus 19 Cope pods 1 006 23 Cope pods 3 008 - 104 25 Cope pods 2 101 - 105 29 Copepods 2 1 0 ~ - 107 34 Cope pods 17 100 - 109
H 0 hemilepido ~;us 1805 Cope pods 2 1 05 Arophipods 2 105
18.5 Cope pods 5 105
Lo longirostri s 26 Cope pods 5 007
10 sagitta 20 Copepods 14 006 - 008 25 Cope pods 4 1.0 29 Cope pods 2 .009 33 Copepods 3 201
Location: station flB .,..C11 . Strai t of Georgia
Dateg April 25~ 1966
Course-magneticg 120 0
-11-
Lat: 49° 14: 8' No to 11-9° 11 i 8 1
. No 123D 45: 5' W. to
. Lonl$.: . 123°39.' $' W ..
Time (set-hauled net): 1130 - 1400
TOi..[ Numberg 6
Remarks~ Miller net and I. K. surface trawl Depth bottom- 190 - 210 fathoms
Vessel - CoNoAoVoULaymore Speed- 5 knots
Number Species of Fish Caught Caught
Oncorhynchus gorbuscha 7
Oncorhynchus keta 1
Theragra chalcogrammus 50 Hexagrammosdecagrammus 55 Ophiodonelongatus 68
Hemilepidotu8 hemilepidotus 1
Psychrolutes paradoxus 1 STICHAEIDAE 51 Ammodytes hexapterus post larval 1
Fork
Average length
mm.
.. 35
· 37~5
15
• 25 27
16 0 5
18
23
35
Range of lengtb frequencies
rom •
33 - 35
12 - 20
17 - 51
17 - 36
18 - 29
Stomach Contents Species Fish Length ----~----------------------Number Examined mmo Type of Organism - Species Organisms Size mm.
O. gorbuscha 32 Cope pods ca 40 0,,6 - 2.3 34 Copepods ca 40 0.7 - 2.5 36 Cope pods ca 33 009 - 2.8
Amphipods 2 108
O. keta 3705 Cope pods ca 40 0.8 = 2.3 Amphipods 1 0.8
To chalcogrammus 12 Copepods 5 0 0 3 16 Cope pods 4 0 0 6
Eggs 2 0 0 1 17 Copepods 2 100
Eggs ca 8 0.1
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Fork ___________ S:1!,oma£h_C,Qn:1!,e.nt,:a ________ Species Fish Length Number Examined IDIDo Type of Organism - Species Organisms Size mm.
H. decagrammus 22 Copepods 7 004 - 009 26 Cope pods ca 8 006 - 202 32 Cope pods 8 0 04 - 205 40 Copepods ca 115 003 - 202 " 51 Cope pods ca 36 008 - 300
00 elongatus 18 Copepods 2 003 - 007 21 Copepods 3 105 30 Cope pods 11 0 05 - 208 32 Copepods . ca 8 101 . - 2 0 0 36 Cope pods 14 103 - 208
Ho hemilepj. dotus 16.5 Cope pods 5 009 - 105
Po paradoxus 18 Nil
L" longirostris 18 .Copepods 5 002 - 007 Eggs 3 001
20 Eggs 5 001 26 .Copepods ca 17 003 - 100
. Eggs ca 25 001 30 Copepods · 7 004 - 103
Eggs 14 001 .
Ao hexapterus 35 Cope pods ca 25 002 - 100 Eggs ca 12 001
; Locatiom Station "C" Strait of Georgia
Dateg April 25~ 1966
Course~magneticg 125 0
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Lat: 49 11 8 .N. . Lo.ng: ·1 '23 39 · 8 We
Time {set-hauled net): 1400 - 1420
Tow Numberg 7
Remarksg Miller net and Ie K. surface trawl Depth bottom - 190 fathoms
Vessel -Go No A. V. flLaymore ff
Species of Fish Caught
Oncorhynchus gorbuscha
Theragra chalcogrammus
Hexagrammos decagrammus
Ophiodon slongatus
STICHAEIDAE .
Species Fish Examined
None examined.
Fork . Length
rom.
Number Caught
2
55
23
15
17
Average length
rom.
32
14 24
29
24
·Range of length frequencies
mmo
32
12 - 17
19 - 32
22 - 38
21 · - 28 .
. .- ______ .-_ -. . .- ... S,i0!!la£h_C.Qnient.§. _____ -- ___ --. Number
Type of Organism - Species Organisms Size mm.o
Locationg Station "DStrait of Georgia
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Time {set-hauled net)g 1515 - . 1535 Dateg April 25 J 1966
Tow Numberg 8 Course-magneticg 1280
Remarks 8 Miller net and 10 Ko surface trawl Depth bottom - 115 fathoms
Species of Fish Caught
Oncorhynchus keta
Theragra chalcogrammus
Hexagrammos decagrammus
Ophiodon elongatus
STICHAEIDAE
Ammodytes he~apterus post larval
Number Caught
1
28
17
20
12
2
Average length
IDmo
39
16
25
29
25
34
Range of length frequencies
mIno
10 0 5 ~ 17
16 - 53
22 - 37
22 - 31
33 - 34
Fork _________ .,.. _S1~a,gh_CQ.n!e.!1t§. ________ Species Fish Length . Number Examined rom .. Type of Organism - Species Organisms · Size DlIDo
00 keta 39 Cope pods 18 0 0 7 - 102 Amphipod 1 1 01
To chalcogrammua 11 .. 5 Copepoda 2 008 - 0 0 9 12 Cope pod 1 0 06 14 Copepods 6 0 0 6 - 0 08 15 Copepoda 6 005 = 0 0 6 17 Copepoda 2 005 - 0 07 17 Copepoda 24 0 0 5 - 0 07
Ho decagrammua 19 Copepoda 7 0 0 4 - 0 07 23 Cope pods 10 0 0 4 - 0 0 8 37 Copepoda 8 101 - 200 53 Copepoda 5 1 0 8 - 202
Fish - Theragra chalcogrammus 1 16 0 0
00 e10ngatus 22 Cope pod 1 007 23 Nil 29 Copepoda 14 1 0 0 - 304 35 Copepoda 16 100 - 205 37 Copepoda 45 0 08 - 104
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Fork ___________ S1oma.s,h_C..Q.n1el1t..§. __ -- _____ Species Fish Length Number Examined InIDo Type of Organism - Species Organisms Size mm.
STICHAEIDAE 22 Nil 23 Copepoda 4 007 25 Nil 31 Cope pods 34 005 - 101
A. he.xapterus 33 Nil 34 Copepod 1 Ou5
Location~ Station ftE" Strait of Georgia
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Long~ 123 0 28! 2' iVo
Time {set-hauled net)g 1630 - 1650 Dateg April 25 j 1966
T ow Number g 9 Course~magneticg 130 "
Remarksg Miller net and Ie Ko surface trawl Depth bottom - 175 fathoms
Vessel ~ CoNoAoV o ~Laymore"
Species of Fish Caught
Oncorhynchus gorbuscha
Theragra chalcogrammus
Hexagrammos decagrammus
Fork Species Fish Length Examined mID 0
00 gorbuscha 33
To chalcogrammus 18
Ho decagramnrus 22 22
Number Caught
1
1
2
Average length
mID 0
33
18
22
Range of length frequencies
!DIDo
22
___________ S1o.!!!a£h_C.£n1eQt~ ________ . Number
Type of Organism - Species Organisms Size mmo
Copepoda ca 89 0 0 4 - 302 Fish - larval 3 300 - 400 Copepod 1 007 Eggs 4 0 .. 1
Copepoda 5 004 - 105 Copepods 5 0 0 5 - 105
-17-
Locatiom Station "F" Strait of Georgia
Lat ~ 49° 02' No Longg 123C> 16 : 5' \I/o
Dateg April 25; 1966 ' . Time(3et~hauled net)g 1725 - 1735
T ow Number g 10 Course~magI1eticg circle tot.r
Remarksg Miller net .and L Ko 5urfaceto'lolJ' Depth bottom = 175 fathoms
Species ·or Fish Caught
Oncorhynchus gorbuscha.
Oncorhynchus kata
Theragra chalcogrammus
STICHAEIDAE
,. Number Caught
28
' 2
1
2
Ammodytes hexapterus post larval 1
~ - ~ - -"- ~ - - - ~
Average Ra.·'lge of length l engt h frequencies
mmo rom 0
36 34 - 39 38 37 - 39
505
47 45 - 48 .
40
Fork _________ .".. _SiomaSh_Cg.n1ent.§. ________ Species Fish l€ngth Number Examined nun. Type of Organism - Species Organisms Size mIn.
00 gorbusoha 34 Copepoda 3 208 35 Nil - 'hardened fat in gut' 36 Copepods ca 47 003 - 2.0 37 Copepoda oa 22 007 - 200
00 keta 37 Copepoda oa 18 2.2 39 Copepoda ca 11 2.0
To cllalcograrnmus 5.5 N:tl
STr CHAEIDAE, 48 Copepoda oa 58 0. 3 - 104 Eggs oa 12 0 0 1
A" hexapterus 40 Copepods 2 0.7
Loeatiom Station "G" Strait of Georgia
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Longg 1230 17! 4' 'Wo
Time (set-hauled net): 1845 - 1915 Dateg April 25 J 1966
Tow Number ~ 11 Course~magnetic~ circle tow
Remarks8 To Ko surface tow - net torn open Depth bottom - 90 fathoms
Number Species of Fish Caught Caught
Oncorhynchus gorbuscha 12
Oncorhynchus keta 1
Gilbertidia sigalutes 1
Psychrolutes ·paradoxus 1
Gasterosteus aculeatus 1
Lumpenus sagitta 3 Ammodytes hexapterus larval ,. 6
post larval 22
~ ~ - ~ - - -- - - - .... _------ ~------
Average Range IOf length length frequencies
mID" mID 0
35 33 - 36
41 19 22
64
43 40-44 23 21 - 25 29 26 - 37
------- - .., - ...
Fork __________ ~S1o!!!a.£h_C.2n1e.!lt§. ________ Species Fiah Length Number Examined nun 0 Type of Organism - Species Organisms Size mID.
00 gorbuscha 33 Copepoda ca 36 0 0 7 - 208 Amphipods '3 1 0 0 Eggs 11 001 Insect 1 201
33 Cope pods 27 200 Bra chyur a - larva 1 202
35 Copepods 2 200 Insect 1 105
00 keta 41 Copepods ca JO 007-201 Brachyura - larvae 2 205 Insect 1 102
Go sigalutes 19 Copepoda ca 34 009 ~ 305 Amphipods 6 007-201
Po parado:xus 22 Copepods ca 20 003-1 0 2 Amphipods 2 103
Species Fish Examined
G. aculeatus
Lo sagitta
A" hexapterus .
-19-
-,----,..----.--------Fork. . ___________ §tQm~ch Q,ontQ.n.t,s ________ _ Length
mme Type of Organism ~ Species
40
44
22 28
36 37
Cope pods Amphipods Brachyura - larvae .
Cope pods Eggs Cope pods Eggs
Nil Cope pods Fish - eggs Cope pods Copepoda Eggs
Number Organisms . Size mm.
ca 120 101 - 3.0 4 105 2 208
9 1.1 3 0" 1 - 400 5 1.2 8 O~ 1
5 0.8 1 003 2 007
ca 25 0,,6 - 1~2 ca 83 0.15
Location~ Station"G" (A) Strait of Georgia
-20-
. Long~ 1230 l7} 4 'W 0
Time (set-hauled net)~ 1930 - 1940 Date~ April 25» 1966
Tow Numberg 12 Course=magneticg circle tow
Remarksg Miller net and 10 Ko surface trawl Depth bottom = 90 fathoms
Number Species of Fish Caught Caught
Oncorhynchus gorbuscha 65
Oncorhynchus keta 8
Thaleichthys pacificus 1
Spirinchus dilatus 2
Hexagrammos decagrammus 1
Lumpenus sagitta 13
PhOli8 spo 3
Ammodytes hexapterus larval 88 post larval 157
Average length
rom 0
35
38
33
23
58
44 25
23 30
Range of length frequencies
rom"
34 = 37
37 = 4D
22 ~ 23
39 - 52
22 - 29
22 - 25 26 = 36
Fork stomach Contents Species Fish EXamined
00 gorbuscha
00 keta
Length mIn 0
31 34
3405
36 37
37
38
38
- - - - - -.- - .. -.,.,. - - .- .. - - -NUmber - - - - - - --
Type of OrgaIl;i.sm - Species Organisms Size rom
Nil - 'hardened fat O
Copepods 27 100 - 2 0 0 Amphipod 1 008 Cope pods 7 200 - 20 2 Insect - larva 1 Copepods . 17 2 0 0 - 202 Copepods 45 103 Brachyura - larva 1 0 0 5
. ..
Copepgds 26 200 EupQausiids 2 20 2 Ostracod 1 302 Copepods . 43 102 - 107 Insects - Ephemeroptera 1 Polychaetes 3 205 Copepoda 9 104 .. - Harpacticoid 1 006
:\
I .j I
Species Fish Examined
O. keta
T. pacificus
H. decagrammua
L. sagitta
PHOLIDAE
A. hexapterus
-21-
Fork Stomach Contents Length - - - - - - - - - - - - - - ,.- - rfumbe; - - -- - - - -
IDmo
40
33
58
40 44-48 22 25
20 24 26
32 35
Type of Organism - Species
Cope pods Euphausiids Insect - Trichoptera
stomach distorted
Cope pods Euphausiids
Cope pods Copepoda Copepoda
Nil Cope pod
Cope pods Copepoda Cladocera Cope pods Copepods Copepoda
Organisms Size mm.
15 102 - 200 2 206 1 102
120+ 2 0 0 2 2.5
.5 0.9 -1 .1 9 0 0 6 - 0.7
16 008
1 0.4
1 0.6 6 0.8
34 0 0 2 2 0.8 4 0.8 5 0.7
Locationg Station "H" Strait of Georgia
-22-
Longg 123 0 10,' 3' Wo
Time (set-hauled net)g 2000 - 2020 Dates April 25~ 1966
Tow Number g 13 Course~magnetics 130"
Remarks~ 10 Ko surface trawl Vessel - CoNoAoV o WLaymore ft
Depth bottom - 63 fathoms
Average Range of length Number length frequencies
Species of Fish Caught Caught rom 0 rom 0
Clupea.pal1asii larval 9 20 018 0 5 = 22
Oncorhynchus gorbuscha 3 34 32 -= 35 .. 5
Theragra cha1cogrammus 2 16 15 ,- .16
Hexagrammos decagrammus 2 49 49 Ophiodon elongatus 1 39
Psychro1utas paradoxus 3 16 12 - 21
STICHAEIDAE 5 36 28 - 44 Ammodytes hexapterus larval 100 18 13 = 25
post larval 58 36 26 - 41 BOfHIDAE 1 16
Fork ___________ S1oma.Qh_CQn1e1!t§. _____ ~ __ Species Fish Length Number Examined rom 0 Type of Or gani SIn - Species Organisms Size mmo
Co pal1asii 14 Copepod 1 002 1805 Nil 22 Nil
0 0 gorbuscha 33 Copepods 13 007 - 20 8 36 Copepods ea 14 1,,0 - 2 0 8
Amphipod 1 006
To chalcogrammus 15 Copepods 16 0 .. 9 16 Copepods 5 0 0 9
Ho decagrammus 51 Cope pods ca 110 1 0 0 - 301 Amphipods 3 300
0 0 elonga'tus 39 Copepoda ca 139 006 = 205 Braehyura - larva 1 305
I I I
!
I i
I I
I I I
I I
I
I 1
I ' 1
I
I !
Species Fish E:x:amined
p. paradoXlls
STI CHAEIDAE
A. he:x:apterus
BarHIDAE
Fork Length
mm$
12 21
30 37
44
14 22 27
32
40
16
-23-
___________ S1oma£h_C9.n1e.!lt~ ________ Number
Type of Organism - Species Organisms Size mm . . Brachyura - larva 1 205 Cope pods ca 10 102 Arophipods 2 005 Brachyura - larva 1 200
Cope pods 5 0.3 - 102 Copepods ca 10 009 - 1.3 Eggs 10 001 Cope pods 11 0.2 - 1.1 Eggs 22 0.1
Cope pods ca 13 0.3 . Copepods 8 0.3 - 1 0 0
Copepods ca 11 0.3 - 102 Eggs ca 27 0 01 Cope pods ca 24 0.4 - 0.9 Eggs ca 30 0.1 Copepods ea 55 003-1.8 Eggs ea 50 0.1
Egg mass
Locatiom Station "J" strait of Georgia
-24-
Time (set-hauled net)~ 2115 - 2135 Dateg April 25~ 1966
Tow Number g 14 Course-magneticg 1300
Remarksg Miller net and I. Ko surface trawl Depth bottom ~ 92 fathoms
Average Range of length Number length frequencies
Species of Fish Caught Caught mIn 0 mID 0
Oncorhynchus gorbuscha .33 33 29 ~ 35 O.n©ol'hynchus keota 4 36 34 ~ 38 Thaleichthys pacificus 1 140 PsyChrolutes parado~s 3 18 17 - 20
Gasterosteus aculeatus 32 71 66 = 79
Lumpenella longirostris 1 14 Lumpenu5 sagitta 1 27 Ammodytes hexapterus post larval 6 32 26 - 38
adult 3 91 88 - 97
~ ~ ~ ~ ~ ~ ~ ~ ~ - - ~ - - - ~ - ~ ~ - ~ ~ aD __ ..., cc::o E:ICI .-. .,.., 0=>0 __
Fork _ _ _ _ _ _ _ _ _ _ _ S1oma,gh_C.Q.n1ent.§ ________ Species Fish Examined
00 gorbuscha
0 0 keta
To pacifieus
Po paradoxus
Length mIn 0
29 31 33 34
35
34
38
140
17
20
Type of Organism - Species
Nil ~ 'globule hard rata Cope pods Copepoda Copepods Amphipods Cope pods
Copepoda Amphipods Brachyura - larvae Well Digested
Copepoda
Ostracod Brachyura - larvae Some algae Ostracod Amphipods Brachyura ~ larvae
Number Organisms Size mmo
9 007 = 208 ca 55 006 = 201
12 0 0 4 ~ 202 ca 15 00 2 - 101
26 006 = 106
3 200 3 005 - 103 2 2 0 0
ca 8 108
1 008 J 300
,1 200 4 102 2 205
I i
.1 I
' I
- 25-
------------------------------~----~------------------------------.-----Fork ___________ Sloma,gh_CQ.nleQt§. _______ _ Species Fish Examined
Length Number mm. Type of Organism - Species Organisms
G. aculeatus 69 Cope pods . ca 100 Amphipods ca 15 Euphauaiids 1
72 Copepods oa 143 Fish - larval 1
79 Cope pods ca 130 .. Amphipods 7
Eu.phausiids 4 1. longirostri s 14 Copepods 2
Eggs - clusters 3
1. sagitta 27 Cope pods 7
Ao hexapterus 27 .Copepods 4 34 Cope pods ca 28
Eggs ca 60 38 Copepods ca 60
Eggs ca 90 88 Copepoda ca 450 93 Cope pods ca 150
Size mIn.
300 5.0 900 006 - 308 8 0 0 0 0 8 - 300 302 12.0
0 .. 6 ~ 101 0.4
1.0
0.9 0.5 - 1.2 001 0 0 4 -1 0 0 001 0 0 6 - 3 0 0 0 0 7 - 3 .. 8
Loeatiom Station "K" Strait of Georgia
-26-
Time (set=hauled net)g 2210 - 2220 Dateg April 25» 1966
Tow Numberg ···15 Course=magneticg cir©le tow
Remarkss Miller net and 10 Ko surface trawl Depth bottom = 110 fathoms
Species of Fish Caught
Oncorhyn©hus gorbuscha
Oncorhynchus kata
Hexagrammo8 de©agrammus
Ophiodon elongatu$
Psyehrolutes paradoxus
AlllDlodytes he:x:apterus post larval adult
Number Caught
3 1
1
1
13
7 1
Average length
rom 0
33 36
ca 17
37
19
31 89
Range of length frequencies
IDmo
33
16 = 21
26 = 34
Fork ___________ S1O!!l.a£h_C.Q.n1eQt~ __ ~ _____ Species Fish Length Number Examined rom 0 Type of Organism ~ Species Organisms Size mIno
00 gorbuscha 33 Copepods oa 36 003 = 009 33 Copepods oa 100 003 = 10 8
00 keta 36 Copepods oa 44 005 - 205
Ho decagrammus 17 Too Mutilated
00 elongatus 37 Cope pods oa 60 004 = 204
Po paradoxus 16 Arophipods 3 206 Brachyura - larvae 2 300
19 Digested 21 Cope pods ca 25 003 - 204
Amphipods oa 6 2,,2
Ao hexapterus 26 Cope pods ca 10 004 = 008 Eggs 4 001
30 Cope pods oa 4 008 32 Nil 89 Nil
Location: Station "K 1 " Strait of Georgia
-27-
Lat: 48° 50.' 3' No Long: 123° 00 : 4' w. Time (set-hauled net): 0905 - 0925
Date: April 26» 1966 Tow Number: 16
Course-magnetic: 3100
Remarks: Miller net and 1. K. surface trawl Vessel - CoN.A.V. flLaymore fi
Depth bottom - 110 fathoms Speed - 5 knots
Species of Fish Caught
Oncorhynchus gorbuscha
Oncorhynchus keta
Theragra chalcogrammus
Ophiodon elongatus
Ammodytes hexapterus larval post larval
Number Caught
2
1
9
1
5 7
Average Range of length length frequencies
mID. mm.
34 33 - 34 38
13 10 - 16.5 20
22 17 - 25 30 28 - 34
Fork ___________ S1oma,gh,-C.Qn1eQt.§. ________ Species Fish Length Number Examined mm. Type of Organism - Species Organisms Size mID.
O. gorbuscha 33 Copepods ca 10 0.7 - 0.9 Eggs ca 8 0.1
34 Cope pods 11 0.7 - 2.6 Brachyura - larva 1 3.2
o. keta 38 Fish - larval 1 1000 T. chalcogrammus 12 Copepods 8 0.2 - 0.8
14.5 Nil 16.5 Nil
O. elongatus 20 Copepods 2 009 Ao hexapterus 17 Copepods ea 10 004 - 009
25 · Cope pods ca 17 0 0 4 - 0.9 33 Cope pods ca 12 003 - 100
Location~ Station "J 1 II
Strait of Georgia .Lat~ 48 0 52.' 5' N.
Time (set~hauled net)~ 1015 - 1025 Dateg April 26:;> 1966
ToW' Numberg 17 . Course=magnetieg 310'"
Remarksg Miller net and I. K. surface trawl Dept h bottom ~ 82 fathoms
Number Species of Fish Caught Caught
el upea pallasii larval . 2
Oncorhynchus gorbuscha . 1
Theragra chalcogrammus 3
Ophiodon elongatus 2
Lumpenella longirostris 2
Lumpenus sagitta 3
Ammodytes hexapterus larval 93 post larval 217
Vessel = C.N.A.V. ~Laymore"
Average Range of length length frequencies
mID. mIn"
23 18 - 28
33 17 16 = 19
18 15 = 20
25 21 = 28
12 12
23 22 - 25 31 26 = 37
Fork ___________ ~o1!!a.9.h~C.Qn1e.Qt..2 ______ = _
Species Fish Length Number Examined lllIn. Type of Organism - Species Organisms Size mIn.
'" Vo pallasii . 28 Nil
0 0 gorbuscl1a 33 Cope pods 8 100 - 2~8 Amphipods 2 1 0 8
To chalcogrammus 19 Copepods 6 101 Eggs ,ca 7 0.1
n Vo elongatus 20 Copepoda 7 101
1. longirostris 28 Copepoda 8 102 Eggs cil 15 0 0 1
1. sagitta 12 Cope pods 5 007 12 Copepoda 12 0 04 = 008
Ao he:x:apterus 22 Copepoda 5 0 0 9 26 Copepoda 8 006 29 Copepoda 4 002 = 0 07 34 Copepods ca 10 102
Eggs ca 16 0 01 37 Copepoda ca 12 0 0 5= 1,,8
-29-
Location g Station "H 1" Strai t of Georgia
La,t: 48 0 54: 7 'N. Long: . 123.0 08 : 6' w.
Time (set-hauled net): 1105 - 1125 Date~ April 26, 1966
Tow Number: · 18 Course-magnetie ~ 3100
Remarksg Miller net and I. K. surface trawl Dept.h bottom = 70 fathoms
Number Species of Fish Caught Caught
Oncorhynchus gorbuscha 31 On©orhynchus keta 12 Theragra chalcogrammus 1
Gilbertidia sigalutea 1 Psyehrolutes paradoxus 1 Gasterosteus aculeatus 1 Lumpenus sagitta 4 Ammodytes hexapterus larval 105
post larval 245
Vessel - C.N"A"V o tfLaymore il
Average Range of length length frequencies
rom. mm.
34 31 - 36
40 36 ~ 49
14 21
20
69
37 25 - 47 25 24 ~ 25 35 27 - 41
~ ~ ~ ~ ~ - - ~ - - - - - - - - - .,... - ... - - - - - - - - ..". - - - - -
Fork Stomach Contents --------------------------~ Species Fish Length Number
Examined mm. Type of Organism - Species Organisms Size mID.
o. gorbuscha 31 Copepoda 12 1.2 33 Cope pods 2 1.2 35 Copepoda 8 0.8 - 2.0
Amphipods 2 0.8 35 Cope pods ca 12 1.8 36 Copepoda 2 1 .. 8
o. keta 36 Copepoda 21 2.5 Fish - larval 1 6.0
38 Copepoda ca 6 105 Fish - larval 2 5.0
49 Cope pods 14 1.0 - 3.2 Amphipods 6 0.8 - 2 0 0 Fish - larval 4 3~5 - 5.0
To chalcogrammus 14 Gut Missing
-30-
Fork ___________ S1on!a,gh_C.Qn1ent!! ________ Species Fish Length Number Examined mmo Type of Organism - Species Organisms Size mIno
Go sigalutes 21 Cope pods ca 8 105 Amphipods ea 10 003=1 0 8 Fish - larval 2. 500
Po paradoxus 20 Amphipods 5 2 0 0
Go arculeatus 69 Cope pods 34 205 Arnphipods ca 8 0 0 4 - 202 Fish = larval 2 400
Lo sagitta 25 Cope pods ca 10 0 0 1 32 Cope pods 13 0 0 4 = 1 00 45 Cope pods ca 8 002 - 009
Eggs 5 0 0 1
Ao hexapterus 24 Cope pods 2 202 25 Nil 34 Cope pods 6 0 0 2 ~ 008 36 Copepoda 5 009 41 Copepoda ca 14 0 0 2 - 1 0 0
-31-
Location~ Station r'G - 1" Strait of Georgia
Lat: 48 0 55; ·8' N. Long: 1 23 0 1 2 'w 0
T ime( set-hauled net) g 121 5 - 1230 Date~ April 26~ 1966
T ow Number g 19 Course~magnetiegeircle tow
Remarks: Miller net and Io K6 surface trawl Depth bottom ~ 70 fathoms
Number Species of Fish Caught Caught
Oncorhynchus gorbu5cha 3 Oncorhynchus keta 1 Hexagrammos deeagrammus 1
Ophiodon elongatus 3 Gilbertidia sigalutes 4 STICHAEIDAE 1 Ammodytes hexapterus larval 28
post larval 42-
~ ~ ~ - ~ - - ~ - ~ ~ '"""" - - - - - - - - - - -
Average Range of length length frequencies
mm. rom ..
34 33 - 35
39 28
31 ca 30 - 32 18 14 - 20
37 22 19 - 25 34 30 - LIJ
- .,. - - __ ~ c:.. _ - ~ - -
Fork ___________ .§t,2m'!!ch .Q.o.!lt~nls ________ Species Fish Length Number Examined mmo Type of Organism - Species Organisms Size mm.
O. gorbuseha 33 Cope pods -'digested l ca 6 105 35 Cope pods H ca 8 2 6 0
O. keta 39 Copepods 24 0 0 6 = 109
H" de cagrammus 28 Copepods 18 0 0 5 = 105 0 0 elongatus 32 Copepoda 8 0 0 6 ~ 201
Eggs ca 6 001
G" sigalutes 16 Copepoda 15 1.8 Amphipods 2 0.9
20 Cope pods ca 15 1 0 8 STICHAEIDAE 37 Nil
Ao hexapterua 25 Nil 30 Nil 33 Copepoda 8 00 4 - 1 0 0
Eggs 4 0 0 3 35 Copepoda 1 1 01 40 Copepods 003 = 0.9
Location: Station"G - 2" Strait of Georgia
-32-
Long: 123 <> 12 t 'W 0
Time ( set-hauled net) ~ 1240 - 1255 Dateg April 26~ 1966
Tow Numberg 20 Course=magneticg 312 0
Remarks 8 Miller net and 10 Ko surface trawl in muddy water Depth bottom = 67 fathoms Vessel ~ CoNoAoV 1IBLaymorefi
Species of Fish Caught Number Caught
Oncorhynchus gorbuscha
Oncorhynchus keta
Hexagrammos decagrammus
Ophiodon elongatus
Gilbertidia sigalutes
Gasterosteus aculeatus
STICHAEIDAE
39
5 2
22
4 1
3
Ammodytes hexapterus larval 4 post larval 26 adult 4
Average length
mIn"
36
39
43
39
18
70 22
25 36 99
Range of length frequencies
rom"
33 = 47 37 = 41
35 = 50
21 = 45
16 = 19
19 - 25
27 = 41
Fork ___________ S1o.ma£h_C.Q.n!e.!!t~ ________ Species Fish Length Number Examined nIDlo Type of Organism - Species Organisms Size rom"
00 gorbuscha 33 Cope pods 18 004 ~ 108 Amphipods 2 0 0 5
34 Cope pods ca 45 003 - 106 Brachyura - larva 1 109
35 Cope pods 11 20 2 Brachyura - larva 1 2,,0
47 Cope pods ca 18 008 - 205 Arophipods ca 8 102 Fish - larval 1 1000
00 keta 37 Cope pods ca 38 104 = 300 39 Cope pods ca 52 0 0 4 - 200
Amphipods 2 102 Fish - STICHAEIDAE 1 400
I I I I
, I I i
I I
I I
:1 \
Species Fish Exami,ned
H. decagrammus
0 0 elongatus
Go sigalutes
G. aculeatus
STICHAEIDAE
A. hexapterus
Fork Length .
mID.
35 50 27 . 37 41 45
17
19
70
25
27 39 41
99
-33-
_______ .... ___ S,iom,a.£h .... C.2.n.1e.ut §. ________
Number Type of Organism :... Species Organisms Size mIn.
Copepoda ca 10 0 0 9- 1.8 Cope pods ca 20 102 - 208
Cope pods ca 10 105 Cope pods 3 102 - 208 Cope pods 5 005 - 2.0 Cope pods 8 1.,5 - 2.5
Copepods 3 1.4 Amphipods 7 0.3 - 1.3 Fish - eggs 5 0 .. 6 Ostracod - Paradoxostomus SPa 1 1.9 Amphipods 3 0 0 9 - 2.0
Cope pods + 2;9 100
Cope pods 2 0.6
Cope pod 1 0.8 Cope pods 6 0.8 - 1.6 Cope pods ca · 17 0 0 3 - 1.4 Eggs ca 20 0.1 Copepods ca 175 102 - 4.3
Locatiom Station "F111 Strai t of Georgia
-34-
Time (set-hauled net)g 1345 - 1400 Dateg April 26» 1966
Tow Numberg 21 Course=magneticg 310 ':'"
Remarksg Miller net and 10 Ko surface trawl in muddy water Depth bottom = 97 fathoms Vessel = CoN 0 Ao V fiLaymore ~o
Average Range of length Number length frequencieS
Speci.es of Fish Caught Caug..ht rom" rom.
Oncorhynchus gorbuscha 41 33 30 - 36 Oncorhynchus keta 2 43 34 - 49 Oncorhynchus nerka 1 118 Hexagrammos decagrammus 2 19 17 - 20 Ophiodon elongatus 5 33 30 = 41 Gilbertidia sigalutes 4 24 13 ~ 45 Psychrolutes paradoxus 1 18 STICHAEIDAE 3 26 18 - 30 Ammodytes hexapterus larval 5 19
post larval 35 34 27 ~ 40
~ ~ ~ ~ = ~ = ~ ~ ~ ~ ~ ~ ~ ~ ~ - ~ ~ ~ ~ -=> -" -- -=>
Fork ___________ S.io!!!a.£h_C.Qn.ie!!t~ ________ Species Fish Examined
o. gorbuscha
0 0 keta
0 0 nerka
Ho decagrammus
00 elongatus
Length mID.
30 32 34 35
34 49
118
17 20
30 33
41
Type of Organism - Species
Cope pods Copepods Copepods Copepods
Copepods Cope pods Fish " - Ophiodon elongatus
Digested
Cope pods Cope pods
Copepods Copepods Amphipods Cope pods Brachyura - larvae
Number Organisms Size mm.
ea 15 008 - 1.9 4 300
ea 10 1.0 - 2.0 ea 10 0.8 - 104 ca 26 008 - 209 ea 20 302
2 1200 ~ 1500
ea 25 003 - 008 5 1.8 6 1.3 5 201 1 200 2 1.5 2 204
I I -35-I
I I
I Fork ___________ S,toma,gh_C.Qn,teQt§. ________
I Species Fish Length Number , ) F.xamined nun. Type of Organism - Species Organisms Size IDlIl.
I G. sigalutes 20 Copepods - , digested'
1
Amphipods - II
45 Cope pods ca 4 3.4
I Brachyura - larvae 3 4.0
P. paradoxus 18 Cope pods 2 105 i Brachyura - larvae 6 3.0 I
STICHAEIDAE 18 Nil 30 Cope pods 13 0.4 - 1.2
Eggs ca 10 0.1
A. hexapterus 27 Cope pods ca 10 0.3 - 0.8 32 Cope pods ca 5 0.3 - 1.9 38 Cope pods 5 0.4 - 1.1 39 Cope pods ca 17 0.6 - 0.9
.Eggs ea 50 0.1
Locationg Station"E - 1" Strait of Georgia
-36-
Date~ April 26,1) 1966 . Time (set-hauled net): 1445 - 1500
Tow Numben 22 (a) Course-magnetic~ 2720
Remarksg 10 Ko surface trawl in muddy water
Species cf Fish Caught
Oncorhynchus gorbuscha
Oncorhynchus keta
Theragra chaleogrammus
Hexagrammos deeagrammus
Ophiodon elongatus
Gilbertidia sigalutes
Rhamphocottus richardsoni
Gasterosteus aculeatus
STICHAEIDAE
Ammodytes hexapterus larval post larval adult
Number Caught
75
7
24
254
149
3
1
10
8
3 16 3
Average length
mmo
34
38
18
35
32 20
18
67
25
14 33 90
32 ~ 36
35 ~ 40
12 - 23
20 - 52
20 = 40
16 = 23
59 - 73 16 - 30
14 26 - 41 90
Fork ___________ S:t.o!!!a£h_CQn1ent~ ________ Species Fish Examined
00 gorbuscha
0 0 keta
Length mmo
32 33
34 34 35
35 38
40
Type of Organism
Cope pods Copepods Fish - larval Cope pods Copepods . Copepods
Copepoda Copepoda Insects Cope pods Fish - Theragra
Number - Species Organisms Size nun 0
ca 23 0.3 - 1.9 ca 26 007 - 201
1 400 ca 20 006 - 201 ca 43 004 - 1.8 ca 28 0.5 - 103 ca 39 008 - 300 ca 30 005 = 105
6 200 ca 36 0 0 7 - 305
chalcogrammua 6 4.0
-37-
Fork Stomach Contents ---------------------------Species Fish length Number Examined nun. Type of Organism - Species Organisms Size nun.
T. chalcogranunus 16 Cope pods 3 0.7 17 Nil 23 Cope pods ca 11 0.3 - 1.4
H. decagrammus 23 Copepods 2 L6 32 Copepods 21 0.7 - 2.0 37 Cope pods 34 0.7 - 3.0 40 Cope pods 22 2.2 52 Cope pods ca 40 3.1
Fish - larval 2 7.0 O. elongatus 22 Cope pods ca 8 1.7
32 Nil 34 Cope pod 1 2.2 38 Cope pods ca 20 0.9 - 2.2
Eggs ca 15 0.1 40 Cope pods ca 15 0.8 - 1 .8
G. sigalutes 16 Aro.phipods 7 0.3 - 1.5 23 Cope pods 16 0.8 - 2.3
Amphipod 1 3.5 Bra chyuL' a - larva 1 2.5
~\
" R. richardsoni 18 Brachyura - larvae 9 2.5 G. aculeatus 59 Cope pods ca 40 0.8 - 2.4
. Amphipods 2 1.4 67 Copepods ca 66 1.0 - 3.5
Fish - larval 5 4.0 - 15.0 73 Copepods - I digested'
STICHAEIDAE 26 Nil 30 Cope pods ca· 37 0.2 - 1.2
A. hexapterus 26 Cope pods 9 0.2 - 0.8 33 Cope pods 18 0.4 - 0.9 41 Cope pods ca 25 0.4 - 0.9 90 Copepoda ca 100 3.0 - 4.0
Fish - larval 5 4.0 - 10.0
-38-
Locatiom station flE - 1 ff Strait of Georgia
Latg 49° 02.' 5' No
Date~ April 26» 1966 Time (set-hauled net)g 1445 - 1500
Tow Numberg 22 (b)
Remarksg Miller net surface tr'awl in muddy water
Species of Fish Caught
Oncorhynchus gorbuscha
Theragra cbalcogrammus
Hexagrammos decagrammus
Ophiodon elongatus
Fork Species Fish Length Examined rrIDl.
00 gorbuscha 31 34
To chal co grrunmus 16 .
Ho decagrammus 18 21 22 26 37
~
o. elongatus 18
30
Number Caught
3
1
36
3
Average length
rom ..
33 16
25 26
stomach Contents
Range of le'ngttr frequencies
mmo
31 ~ 35
18 ~ 37
18 - 30
---------------------------Number Type of Organism - Species Organisms Size rom o
Cope pods ca 13 003 - 102 Copepod 1 302 Amphipods 8 104 - 205 Copepods ca 6 003 Cope pods ca 15 0 03 - 104 Copepods ca 5 008 - 103 Copepods ca 14 004 - 101 Copepods 6 1.2 - 300 Copepods ca 9 20 2 Parasite - roundworm 1 800 Cope pods ca 8 0.8 Eggs ca 10 0.1 Cope pods 9 006 = 1.7
Locationg station ''E - 2" Strai t of Georgia .
-39-
Lat: 49 0 02.6' N. Long: 123 0 26 I W .•
Time (set-hauled net): · 1510 - 1525 Dateg April 26» 1966
Tow Number: 23 Course-magnetic~ 3220
Remarks~ . Miller net and Io K. surface trawl
Species of Fish Caught
Oncorhynchus gorbuscha
Hexagrammos decagrammus Ophiodon elongatus
Gilbertidia sigalutes
Psychrolutes paradoxus
Ammodytes hexapterus larval post larval
Fork Length
Number Caught
6
53 88
6
1
2 8
Average Range of length length frequencies
rom 0 mID 0
35 32 - 45
25 16 - 36 31 23 = 46
21 17 ~ 25
20
25 25 34 29 - 43
------
Species Fish Examined nun. Type of Organism - Species Organisms Size rom ..
O. gorbuscha 33
34 45
Ho decagrammus 19 23 26 27 36
o. elongatus 23 27 27 39 46
Copepods II. - Corycaeusspo
Copepods Copepods
" - Corycaeus sp. Amphipods
Cope pods Cope pods Copepods Cope pods Cope pods
Nil Cope pods Cope pods Cope pods Cope pods
ca 17 201 ca 5 007 ca 120 0.3-1.7 ca 20 1.8 ca 60 0.5 - 008 ca 12 0.8 - 10 2
12 0.3-0 07 3 104 4 1 .. 8 3 102 - 204
12 008 - 109
2 103 5 1.8 2 1.8
ca 18 0.8 - 1.5
-40-
Fork ___________ S1o!!!a.£h~C.Qn1e!!t§. ________ Species Fish length Number Examined rom. Type of Organism - Species Organisms Size DlDlo
G. sigalutes 21 Ostracod - Paradoxostomus SPa 1 108 Amphipods 4 1.4 Brachyura - larvae 5 · 3.0 - 6 0 0
Po parado:xus 20 Copepods 17 1.2 - 302 Amphipod 1 1.0
A. hexapterus 31 Nil 32 Cope pods 6 1.0 43 Phytoplankton
Location~ Station liD 191 Strait of Georgia
-41-
Lat: .49°07; 5 I N.
Time (set-hauled net): 1615 - 1630 Date~ April 26 9 1966
Tow Num:ber ~ 24 Course-magneticg circle tow
Remarksg Miller net and I. Ko surface trawl Depth bottom - 190 fathoms
Vessel - CoNoAo Vo "Laymore"
Species of Fish Caught
Oncorhynchus gorbuscha
Hexagrammos decagrammus
Ophiodon elongatus
Gilbertidia sigalutes
STICHAEIDAE
Ammodytes hexapterus
Fork Species Fish . Length Examined Inm.
00 gorbuscha 35
38
Eo decagrammus 20 24 30 37
00 elongatus 23 31
Go sigalutes 17 SI'ICHAEIDAE 3·1
33
Average Range of length Num:ber length frequencies Caught mm. Inm.
· 4 37 35 - 38
78 26 18 = 37
10 28 23 = 31
1 17 6 31 29 - 33 2
_____ ..., ____ _ S1o!!!a.Qh_C.Q.n1e!!t~ ________ Number
Type of Organism - Species Organisms Size romo
Cope pods - Metridia spo ca 83 003 - 203 If - Corycaeus sp. 12 009
Cope pods - Metridia spo 31 005 - 203 II - Corycae'Us spo 9 0.8
Amphipod 1 200 Cope pods 3 006 Cope pods 5 0.4 - 1.0 Cope pods ca 9 008 200 Cope pods 33 1.1 - 3.3 Eggs 3 0 0 1 Cope pods 5 202
Brachyura - larvae 5 2.0 - 505 Copepods 14 008 - 203 Eggs ca 12 001 Cope pods 13 006 - 207 Eggs 7 0.1
-42 -
Locationg Station _C1" Strait of Georgia
Lat: 49° 10 ; 2 I N. Long: 123 0 37.; 2 I W.
Dateg April 26 j 1966 Time (set-hauled net): 1700 - 1720
Tow Number : 25 Course-magnetics circle tow
Remarks g Miller net and Io K. surface trawl Dept h bottom - 125 fathoms
Species of Fish Caught
Theragra chalcogrammus
Hexagrammos decagrammus
Ophi odon elongatus
Scorpaeni cht hys marmoratus
STICHAEIDAE
. Number Caught
1
37
39
1
8
Average length
rom 0
15
29
32
22
26
Range of length frequencies
rum.
18 - 43
20 ... 41
18 - 32
Fork ___________ S1oma.Qh_C.2n1e.!!t~ ________ . Speci es Fish Length Nuniber
. Examined nun. Type of Organism - Species Organisms Size mIn •
To chalcogrammus 15 Cope pods 3 0.5 Eggs ca 20 0 0 07
H. decagrammus 23 Cope pods 004 - 1.2 29 Cope pods 9 100 - 108 33 Cope pods 23 008 - 105 43 Cope pods ca 33 100 - 3 05
00 elongatus 26 Cope pods 3 1.8 31 Cope pods 9 1.0 - 208
Eggs ca 20 001 35 Cope pods ca 62 007 - 1. 7
Eggs ca 15 0 01 41 Cope pods 41 0 08 - 2 0 8
So marmoratus 22 Cope pods 7 1.3 - 300 Fish - STICHAEIDAE 1 10 0 0
STICHAEIDAE 18 Cope pods 9 0 03 - 103 20 Copepoda ca 19 005 - 2 02
Eggs ca 35 001 32 Cope pods 47 0 0 4 - 106
Eggs ca 25 001
-43-
Location~ Station fiB 1 " Strait of Georgia
Lat: 490 13~ 4' N. Longg123° 42.4'-W.
Time (set-hauled net): 1750 - 1805 Dateg April 26, 1966
T ow Number g 26 Course-magnetic8 circle tow
Remarks8 Miller net and 10 Ko surface trawl Depth bottom - 200 fathoms
Species of Fish Caught
Theragra chalcogrammus
Hexagrammos decagrammus
Ophiodon elongatus
Number Caught
7
7
35
ST1CHAE1DAE 11
lUnmodytes hexapteTUs post larval 3
~ - ~ ~ ~ ~ - -. - - - - - ~ - -. - ~ ~ - - - - - - -Fork
Average Range of length length frequencies
mm. mm~
15 13 - 17
21 16 ~ 26
32 19 - 47 26 20 - 30
33 30 - 37
stomach Contents .---------------------------, Species Fish length Number Examined IDmo Type of Organism - Species Organisms Size DUn.
To chalco g.rammus 14 Copepoda 6 006 - 0.9 Eggs ca 32 0 01
17 Cope pods 3 009
Ho decagrammus 18 Cope pods 3 1.4 26 Copepoda 9 006 - 1.2
0 0 elongatus 27 Copepods 42 0 04 - 1.8 Eggs ca 20 0.1
31 Copepods 25 006 - 1.9 Eggs ca 20 0.1
33 Cope pods 35 0.7 - 2.3 Eggs ca 20 0 01
47 Copepods ca 66 1 00 - 204
STICHAE1DAE 20 Copepods ca 26 0.3 - 102 27 Cope pods ca 72 003 - 103
Eggs ca 8 001 30 Copepods 43 0.3 - 108
Eggs ca 14 0.1
Ao he::x:apterus )0 Copepoda 8 0 02 - 008 Eggs ca 18 0.1
Location~ Station" A 1 " Strait of Georgia
-44-
Long: 123 0 48 ! 8' Wo
Time (set-hauled net): 1850 - 1905 Date g April 26» 1966
Tow Number g 27 Course=magneti c8 ci r cle tow
Remarks~ Miller net and 10 Ko surface trawl . Depth bottom ~ 220 fat homs
Species of Fish Caught
Hexagrammos decagrammus
Ophiodon elcngatus
Scorpaenicht hys marmoratus
STICHAEIDAE
Number . Caught
4 14
1
7
Syngnathus griseolineatus 1
Average length .
mID 0
29
30
14
24
108
Range . of length frequencies
mIll 0
25 = 32
20 ~ 40
15 = 30
Fork ___________ S!0!l1ash_C,2n!ellt ,2 ________
Species Fish Length Number Examined mmo Type of Organism - Species Organisms Size rom.
H. decagrammus 25 Copepods ca 20 0.4 - 2.0 32 Cope pods 18 0 . 5 - 1.9
00 elongatus 25 Copepods ca 50 0.3 - 1.5 32 Cope pods 2.1 40 Cope pods ca 18 0.8 - 201
S. marmoratus 14 Cope pods 5 003 - 1.2
STICHAEIDAE 15 Cope pods ca 16 0.3 - 009 25 Cope pods ca 55 003 - 1.6
Eggs ca 30 0 0 1 30 Cope pods ca 25 0.6 - 1 .8
S. griseolineatus 108 Cope pods ca 50 300 Amphipods
Location~ Station lip - 1" Strait of Georgia
-45-
Time (set-hauled net): 1200 - 1215 Dateg April 27; 1966
T ow Number: 28 Course~magneticg circle tow
Remarksg Miller net and I. K. surface trawl Depth bottom - 140 fathoms
Species of Fish Caught
Oncorhynchus gorbuscha
Oncorhynchus keta
Theragra cnalcogrammus
Ophiodon elongatus
Lumpenella longirostris
Lumpenus sagitta
Number Caught
10
3
1
7
2
4
AnmlOdytes he:x:apterus post larva1 24
Vessel - C.N.A. V. HLaymore"
Average Range of length length frequendes
mm. mm~
35 29 - 36
37 36 - 38 12
24 19 - 28 21 15 - 26
38 32 - 47
34 27 - 40
. Fork ___________ S1oma£h_CQn!ellt;! _______ Species Fish Length Number Examined rom. Type of Organism - Species Organisms Size mm.
O. gorbuscha 29 Insects 2 2.0 32 Copepods ca 15 0~5 - 2.0 35 Insects CB- 5 3.0 36 Insects ca 5 1.0
O. keta 37 Insects ca 20 1.0 - 2.2 38 Insects 14 3.0
T. chalcogrammus 12 Copepods 16 0.2 - 1.1
O. elongatus 19 to Stomachs damaged 28
L. loogirostris 26 Copepods 2 "1.2
L. sagitta 32 Eggs 2 0.3 47 Cope pods 12 0.5 = 1.9
A. hexapterus 27 Cope pods 16 002 - 1.0 33 Cope pods 17 0.3 ~ 1.1 35 Cope pods 32 0.4 - 1.0 39 Digested
- 46-
Location~ Station "P - 2" Strait of Georgia
Lat 8 49 <> 00 f 6 I No Long& 1230 28: 5 I Wo
. Time (set-hauled net) g 1305 - 1320 Date & April 27~ 1966
Toy Numben 29 Course~magnetic~ 345~
Remarks & Miller net and 10 Ko surface trawl Depth bottom - 130 fathoms
Species of Fish Caught
Hexagrammos deGagrammus
Ophiodon elQngat us
Gil bertidi a si galut es
Lumpenella l ongirostris
Lumpenus sag! t ta
Ammodytes hexapterus post larval
. Number Caught
20
5
1
1
1
18
Average length
mID 0
20
30
~ 5
27
31
33
Range of length frequencies
mID 0
16 ~ 24
26 ~ 35
29 - 37
Fork ___________ Slo!!!a£h_C.Q.nlellt~ ________ Species Fish Length Number Examined mIn 0 Type of Organism - Species Organisms Size mIno
Ho decalSI'arnmus 17 Copepods ca 4 00 2 - 005 19 Copepods ea 20 0.2 - 005 22 Cope pods ca 20 003 - 1.4 24 Cope pods ca 60 005 - 1.5
00
. elongatus 26 Copepods 10 100 - 2.0 31 Copepods 28 008 - 201 35 Cope pods 36 008 - 207
Go sigalutes 15 Cope pods ca 15 100 Amphipods 5 003 - 102
Lo longirostris 27 Copepods 11 005 - 305
Lo sagitta 31 Cope pods ea 16 100
A. hexapterus 29 Cope pods ca 8 0 03 - 0 08 32 Cope pods ca 12 006 ~ 1 00 35 Copepods ca 15 0 0 3 - 009
Locatiom Station tIp - 3!l Strai tof Georgia
-47-
Lat; 49° 06' N.
. Time (set-hauled net): 1400 - 1415 Date g April 27 J 1966
Tow Numberg 30 COUl"se=magnetic~ 345 0
Remarksg Miller net and Io K. surface trawl Depth bottom - 165 fathoms
Number Species of Fish Caught Caught
Oncorhynchus gorbuscha 2
Oncorhynchus keta 1
Theragra chalcogrammus 4 Hexagrammos decagrammus 5
Ophiodon elongatus 13 Lumpenella longirostris 4 Lumpenus sagitta 1 Ammodytes hexapterus post larval 18
Average Range of length "length frequencies
mIn. mm.
34 34 37
14 10 - 16 30 22 - L ... 7
29 22 - 43 30 28 - 31
45
35 28 ~ 41
Fork ___________ S1o!!!a£.h_C.Qn1e!lt~ ________ Species Fiah Length Number Examined !DIDo Type of Organism - Species Organisms Size mIno
O. gorbuscha 34 Copepods 6 0 0 2 - 1.4 34 Insects ca 8 3.0
00 keta 37 Copepods 2 2.1 Insects 14 300
To chalcogrammus 13 Copepoda ca 10 006 16 Copepoda ca 13 0.2 - 0.8
H. decagrammus 22 Cope pods ca 5 1.4 25 Cope pods 3 1.5 47 Copepoda 15 1.5 - 3.5
Fish - eyeballs 2 0.2
O. elongatus 26 Cope pods 10 1.0 - 208 29 Cope pods 15 108 43 Cope pods 26 1.0 - 2.5
-48-
. Fork ___________ S1oma£.h_CQn1eQt.§. ________ Species Fish length Number Examined rum. Type of Organism - Species Organisms Size rumo
Lo longirostris 28 Cope pods 8 008 - 208 31 Cope pods ca 10 004 - 1.0
Eggs ca 25 001
10 sagitta 45 Cope pods 12 006 - 205
Ao hexapterus 28 Cope pods ca 12 007 30 Copepods ca 30 0.2 - 1.0 34 Copepods ca 20 003 - 1.7 41 Copepods 16 007 - 205
-49-
Location: Station flp - 4" Strait of Georgia
Lat: 49 Q 10.: 2' N. Long: 123 0 27. 6 'W.
Time (set~hauled net): " 1450 - 1505 Date ~ April 27» 1966
T ow Number g 31
Remarks:: Niller net and Ie K" surface trawl Depth bottom - 150 fathoms
Species of Fish Caught
Oncorhynchus keta
Hexagrammos decagrammus
Ophiodon elongatus
STICHAEIDAE
Fork Species Fish Length Examined mIn.
O. keta 37
H. decagrammus 17 18 19
O. elongatus 27 34
STICHAEIDAE 28
Number Caught
1
6
4
1
Average length
mIn.
37
18
27
28
Range of length frequencies
mIn.
17 - 19
20 - 34
______ ~ ____ ~0!l!a£h_C.£n!eQt!! ________ - Number
Type of Organism ~ Species Organisms Size mmo
Cope pods 6 1.2 Amphipods 9 0.8 - 1.5 Insects 7 3.0 Eggs 28 0.4
Nil Cope pods 9 0.3 - 1 .0 Copepods 8 0.2 - 0.7
Copepods 7 0.8 - 1.4 Copepods 7 105
Copepods 13 0.6 - 1.0
-50~
Locationg Station "P - 5" Strait of Georgia
Latg- 49° 07! 5' N. Long~ 123 ~ 22 P. 2' Wo
Time (set-hauled net)g 1535 - 1550 Date g April 27» 1966
T ow Number g 32 Course=magneti©z 1550
Remarks z Miller net and IoK~ surface trawl in muddy water Depth bottom = 93 fathoms Vessel - CoNoAoVo WLaymoren
Average Range of length Number length frequencies
Species of Fish Caught Caught mIn 0 .mmo
Oncorhynchus gorbuscha 62. " 34 31 - 37
Oncorhynchus keta 14 37 35 - 40 Theragra©hal©ogrammus 2 13 ca 12 = 13 Hexagrammos decagrammus 2 17 17 Ophiodon elongatus 5 24 17 - 30 Gilbertidia sigalutes 3 20 19 - 20 Rhamphoeottus riehardsoni 1 17
Gasterosteus acu1eatus 2 66 64 - 68
Lumpenella longirostris 3 23 16 - 28 Lumpenus sagitta 3 39 35 = 46 Ammodytes hexapterus larval 3 20 20
post larval 15 38 32 = 43
~ ~ ~ ~ ~ ~ ~ ~ ~ ~ -=> __ GD aCI _ _ .,.
Co:o:>c-_G3 - ~ ~ ~ ~ ~ - - ~
Fork ___________ S!oma,gh_C.Qn!e!!t.§. ________ Species Fish Examined
00 gorbuscha
00 keta
Length mDlo
31
33 34 35 37
35
36
37 40
Type df Organism - Species
Cope pods lunphipod· Insect Copepods Insects Copepods
Copepod Insect Cope pods Amphipods Insects Insects Cope pods
. Amphipods Fish - larval
Number Organisms Size mmo
3 009 1 102 1 108
ca 4 102 4 2.7
ca 5 100
1 208 1 105 2 301 2 008 - 1.5 8 203 6 100 - 300
ca 10 206 4 204 3 80 0 ~ 1500
Loeationg Station SIp - 6" Strait of Georgia
-52-
Time (set-hauled net)g 1620 - 1630 Dateg April 27~ 1966
Tow Number~ 33 Course=magneti©g circle tow
Remark~g Miller net and 10 Ko surface trawl Dept h bottom ~ ~ 00 fathoms
Species ~f Fish Caught
Clupea pallasii . larval
Oncorhyn:clm.s gorbuscha
Oncorhynchus keta
Ophiodon elongatus
STICHAEIDAE
Ammodytes ,he4apterus post larval
Number . Caught
t
22
1
1
10
43
Average length
mmo
33
34
38
20
44 35
Range of length f'requencies
DlIDo
32 ~ 36
41 = 48
28 - 42
Fork __________ .§t.Qm~ch .QoQt~n1s _________ Species Fish Examined
Co pallasii
0 0 gorbuscha
0 0 keta
00 elongatus
STICHAEIDAE
Ao hexapterus
Length mmo
33 32
33
34 36
38
20
41 45
48
30 34 40 42
Type of Organism - Species
Copepods
Copepods Insects Copepods Insects Insect Eggs - Diptera Copepods Copepoda
Insects Inae ct Eggs - Diptera
Stomach damaged
Cope pods Cope pods Eggs Copepoda
Copepoda Copepods Cope pods Copepods
Number Organisms Size DlIDo
ca 6 0 02 - 100
3 301 2 104 3 204 2 100
ca 10 003 - 004 4 1 08 - 304
ca 10 008 - 208
8 1 0 8-402 ca 20 004
37 005 - 100 ca 15 005 - 104
2 004 ca 40 003 - 103
ca 30 005 - 105 4 0 0 8
ca 12 101 ca 15 108
-53-
Location: Station"P - 7" Strait of Georgia
Lat: 490 03.' 1 ( No Long: 123 0 20 : 4' W.
Time (set-hauled net): 1820 - 1830 Dateg April 27» 1966
Tow Number: 34 Course-magnetic~ circle tow
Remarksg Miller net and I. K. surface trawl Depth bottom - 100 fathoms
Species of Fish Caught
Oncorhynchus gorbuscha .
Gilbertidia sigalutes
STICHAEIDAE
Ammodytes hexapterus post larval
Number Caught
3
1
20
31
Vessel- CoNoA.V. "Laymore"
Average Range of length length frequencies
nun. mIn.
35 34 - 36 24
45 43 - 47 38 29 - 44
Fork Stomach Contents ---------------------------Species Fish Examined
O. gorbuscha
G. sigalutes
STI CHAEIDAE
A. hexapterus
Length l11ID.
34 35 36
24
43 44 47 36 38 44
Type of Organism - Species
Cope pods Copepoda Copepods
Cope pods - 'partlydigested f
Cope pods Cope pods Cope pods
Eggs Cope pods Cope pods
Number Organisms Size mID.
8 100-2.1 6 2.5
ca 15 0.8 - 2.5 ca 20 2.0
23 0.3 - 1.7 ca 40 1.0
48 0.8 - 1.5 002 - 005
ca 20 0.3 - 1.2 23 103
Locatiom Station"P - 7" Strait of Georgia
-54-
Long~ 1230 20! i l Wo
Time (set-hauled net)g 1830 - 1840 Date~ April 27» 1966
Tow Numberg 35 Course=magneticg circle tow
Remarks & Miller net and I~ Ko surface trawl Depth bottom = 100 fathoms
Spe ,:; i e 13 of Fi 811 Caught Number CauglJ.t
Average length
InIDo
Range of length . frequencies
mnlo
-------------------------------------------------------------------------Clupea pallasii larval
Thaleichthys pacificus
STICHAEIDAE Ammodytes hexapterus post larval
1
1
15
15
32
70
43 36
39 ~ 45
31 - 41
Species Fish Examined
Co pallasii
T 0 paci fi eus
STICHAEIDAE
Ao hexapterus
Fork Length
nun.
32
70
39 43 45
31
34
41
Stomach Contents ---------~-----------------Number
Type of Organism - Species Organisms Size InID"
Nil
Copepods ca 60 005 - 3.3 Copepods 21 102 Cope pods ca 20 0 0 8 - 1.6 Cope pods ca 24 006 - 108 Cope pods 24 007 - 104 Eggs 5 0.1 Cope pods ca 45 005 - 1,,4 Eggs ca 20 0 0 1 Cope pods 18 1.6
-55-
Location: Station "p - 7ft . . . Strait of Georgia
Dateg April 27, 1966 Time (set-hauled net):' 1845 - 1855
Tow Number: 36 Course~magnetic~ circle tow
Remarksg Miller net and I.Ko surface trawl Depth bottom - 100 fathoms
Species of Fish Caught
Oncorhynchus gorbuscha
Gilbertidia sigalutes
STICHAEIDAE
Ammodytes hexapterus
Number Caught
4 2
14
14
Average length
mm.
, Stomach Contents
Range of length frequencies
mID.
Fork Length ---------------------------Number Species Fish
Examined mID. Type of Organi,sm - Species Organisms Sizemm.
None
-56-
Location: Station "P - 1" Strait of Georgia
~t: 49° 03 'N Long: 123 0 20.1'W
Time (set-hauled net): 2010 - , 2020, Date: April 27, 1966
T ow Number ~ 37 Course-magneti.c: _ circle tow.
Remarks: Miller net and 10 K. surface trawl Depth bottom - 100 fathoms
Species of Fish Caught
Lampetra ayresii
Oncorhynchus gorbusCha
Oncorhynchus tshawytscha
Oncorhynchus keta
STICHAEIDAE
Ammodytes hexapterus post larval.
Number . Caught
2
1
1
10
11
Average length
mmo
35
41
41
41
34
Range of length frequencies
rom 0
33 - 36
32 - 47
29 - 37
Fork __________ .... S!oma,£h_C.Q.n!ent§. ________ . Species Fish Examined
O. gor bus cha
0 0 tshawytscha
O. keta
S'I'ICHAEIDAE
Ao hexapterus
Length rom 0
33 36
41
41 32 41
47 33 35 37
Type of Organism
Cope pods Copepods Euphausiids
Copepods
Cope pods
Cope pods Cope pods Eggs Copepods
Cope pods Cope pods Cope pods
. NUmber - Species Organisms Size mID 0
3 209 ca 105 105 ca 5 208
ca 18 305 ca 60 008 - 302 ca 3 005 ca 32 005 - 2.0
6 001 14 005 ~ 205
ca 5 002 - 1 00 ca 25 0 0 3 - 105 ca 18 1 0 0
Location: Station"P - 7" Strait or Georgia
-57-
Lat: 49';>03' N. Long: 123'" 20. 1 I Wo
Time (set-hauled net) :2020 - 20]0 Date: April 27, 1966
Tow Number: 38 Course-magnetic~ circle tow
Remarks: Miller net and T. K. surraee trawl Depth bottom - 100 rathoms
Species or Fish Caught
Lumpenus sagitta
Ammodytes hexapterus larval post larval
Number Caught
4
1 4
Vessel - CoNoA~Vo "Laymore"
Average . length
mID.
Range or length frequencies
mID.
43 41 - 46
25 36 34 - 38
Fork ___________ S,ioE!a.Qh_C.Qn,ie!!t2 _______ _ Species Fish ~ned
Lo sagitta
A. hexapterus
. Length mm.
41 46
25
34 37
Typ~ or Organism - Species
Cope pods Cope pods
Cope pods Eggs Cope pods Cope pods Eggs
Number Organisms Size mID.
ca 40 0.3 - 102 ca 33 1.2
9 0.5 - 103 7 0 •. 1 9 L2 8 007 -107 6 0 01
- 58-
LOC3.t).on: Station!lp - 7" Strait of Georgia
Ix"l.t: /.:.9°03' No Long : 123 0 20.Q " w.
Time (set-hauled net): 2110 - 2120 Date ~ April 27 $ 1966
Tow Numberg 39 Course-magnetic: circle tow
Remarks: Miller net and I. K. surface trawl Depth bottom - 100 fathoms
Species of Fish Caught Number Caught
Average length
mIn.
Range of length frequencies
nun. --.-----------------------------~-
STICHAEIDAE
Arnmodytes hexapterus post larval
Fork
4
3
Stomach Contents
41 ~ 45
26 = 36
--------------~------------Species Fish Examined
STICHAEIDAE
Ao hexapterus
Length nun.
40
45
34
36
Type of Organism - Species
Cope pods Eggs Copepods Eggs
Cope pods Eggs Copepoda
Number Organisms Size mIn 0
ca 36 1.4 ca 12 001 ca 54 0.3 - 1.2 ca 15 0. ' ca 25 1.4
8 001 ea 25 0.9
- 59-
Locatiom Station tip - 8t1
Strait of Georgia Lat: 49 0 15 : 8' N. Long: 12)0 24. 8'W.
Time (set-hauled net) ~ 0815 - 08.30 Datez April 28, 1966
Tow Numberg 40 Course-magnetic8 198 0
Remarksg Miller net and I. KG surface trawl Depth bottom - 128 fathoms
Species of Fish Caught
Oncorhynchus gorbuscha
Oncorhynchus kat a
Theragra chalcogrammus
Hexagrammos decagrammus
Ophiodon elongatus
Gasterosteus aculeatus
STIClIAEIDAE
Fork Species Fish ~ngth
Examined mm •
O. gorbuscha .34
o. keta .37
.38
T. chalcogrammus
H. decagramnrua 22 27 29
o. elongatus 25 .30 .34 42
Number Caught
1
.3
4
9
10
1
.3
Average length
rom 0
.34
.37
15
26
.32
52
31
Range of length frequencies
. IDm.
.37 - .38
14 - 17
22 - 29
25 - 42
28 - .3.3
___________ S1o!Jla.£h_C,gn1ent § ________
Number Type of Organism - Species Organisms Size mID.
Copepods ca 10 004 - 100 Amphipods 2 0.5 - 1.2
Cope pods ca 12 1.2 - 3.7 Fish - larval 1 .3.5 Copepods 5 0.9 - 1.4 Amphipods .3 0.9 - 1.8
Stomachs damaged
Copepoda ca 18 0.8 - 1.8 Copepods ca 8 0<>8 - 2.8 Cope pods 8 3.0
Cope pods 8 100 - 2.5 Cope pods ca 12 0.8 - 1.8 Copepods 19 0.7 - 2 • .3 Cope pods ca 16 0.8 - 2 • .3
Species Fish Examined
G. aculeatus
STICHAEIDAE
. Fork Length
rom.
52
28 33
-60-
___________ S1oma,gh_CQn1egt.§. _______ _ Number
Type of Organism - Species Organisms
Cope pods Fish - Clupea pallasii
Cope pods Copepods
37 1
6 10
Size mID.
300 12 00
006 - 1.5 100 - 2 0 6
Location: Station Hp - 9ft
Strait of Georgia
Date: April 28, 1966
Course-magnetic: 298 0
-61-
Lat: 49 0 18 : 1' N. Long: 123 <> 31 . 9' w.
- TIme (set-hauled net) :0910 - 0925
Tow Number: 41
Remarks: Miller net and 1. K. surface trawl Depth bottom - 135 fathoms
Vessel - C~N:A.V. "Laymore"
--~--------------~-------------------------------------------------~
Species of Fish Caught Number Caught
Average Range of length length frequencies
rom, mID.-
-----~----------------------.-------------------------------Oncorhynchus gorbuscha 1 43 Theragra chalcogrammus 3 15 7 - 20
Ophlodon elonga-tus 11 32 22- 39
STICHAEIDAE 2 27 24 - 29
Fork Stomach Contents ----~----------------------Species Fish Length Number
Examined rom, Type of Organism - Speci.es Organisms Size rom. , - ..... --, ----'---
O. gorbuscha 43 Cope pods 8 1 ~ 5 Amphipoda 5 1.2
T ~ chalcogrammus 7 Copepoda ca 20 0 .,2 - 0 . 5 20 Copepods ca 40 0.5-1.,0
Eggs ca 100 0.1
00 elongatus 27 Cope pods ca 10 1.5 37 Copepods 4 1.3 - 3.5 39 Copepods 21 1.1 - 2.1
S'l'I CHAEIDAE 24 Cope pods 6 2.5 Eggs 5 O~ 1
29 Copepoda 2 2.2
Location: Station lip - 10" Strait of Georgia
Date: April 28, 1966
Course-magnetic: 288 0
-62-
lat: ,40/ 20 . 4' No ' LoIlg: 123 0 38.6' v.
Time (set-hauled net)' : 1000 - 1010
Tow Number: 42
Remarks: Miller net and 10 K. surface trawl Depth bottom - 120 fathoms
Species of Fish Caught
Oncorhynchus gorbuscha
Theragra chalcogrammus
Hexagrammos decagrammus
Ophiodon elongatus
STICHAEIDAE
Number . . Gaught
2
9
3
Average length
mm·.
Range of length frequencies
rom.
35 - 37
12 - 20
27 - 35
27 - 47
Ammodytea hexapterua post larval
25
1
1
36
16
31
33
23
31
- - - - - - - - - - .- _. -"
Fork . Stomach- Contents -------------~---------~---Species Fish length Number
Examined mm. Type of Organism- Species Organisms Size rom.
O. gorbuscha 35 Copepoda 16 0.6 - 2.0 Insect 1 1.2
" - Eggs 14 0.4 37 Fish - larval 'digested v
To chalcogrammus 15 Cope pods ca 12 002 - 006 20 Cope pods ca 20 003 - 008
H. decagrammus 27 Copepoda ca 30 0.5 - 204 Parasite - Roundworm · 1 800
35 Cope pods ca 20 008 - 208 Amphipods ca 10 102
O. elongatus 28 Copepods 4 008 - 200 32 Copepods ca 10 006 - 1.6 33 Cope pods ca 24 005 - 200 37 Cope pods 14 0.7 - 2.2 47 Cope pods ca 42 008 - 206
STICHAEIDAE 23 Cope pods ca 12 004 - 102
A. hexapterus 31 Copepods ca 18 00 2 - 008
Location: Station tip - 11 tJ
Strait· of Georgia
Date: April 28, 1966 .
Course-magnetic~ 288 0
-63-
Lat: 49 0 22; 7' N. Long: 123 0 45 / 4' Wo
Time (set-hauled net): 1030 - 1040
TQW Number~ . 43
Remarks: Miller net and 10 Ko surface trawl Depth bottom - 110 fathoms
Species of Fish Caught
Oncorhynchus gorbuscha
Oncorhynchus keta
Theragra chalcogrammus
Hexagrammos decagrammus
Ophiodon elongatus
Gilbertidia sigalutes
Gasterosteus aculeatus
STICHAEIDAE
Ammodytes hexapterus larval post larval
. Number Caught
2
1
5 32
9
1
1
4 2 6
Average length
mm.
35 36
15
29
37 22
25
25 33
Range of length frequencies
mm.
35
13 - 16
20 - 38
30 - 47
14 - 33 25 26 - 40
Fork ___________ S.1oma,gh_C.Q.n.1eQt,2 ________ Species Fish Length Number Examined mm. Type of Organism - Species Organisms Size mm.
00 gorbuscha 35 Cope pods 8 008 35 Cope pods 6 2.0
Insect 1 1.5 o. keta 36 Copepods 16 3.2
T. chalcogrammus 16 CoPe pods ca 10 0.2 - 0.9 Ho decagrammus 21 Cope pods ca 10 008 - 1.8
27 Copepoda 15 201 31 Cope pods ca 12 108 - 2.5 38 Cope pods ca 30 102 - 302
O. elongatus 30 Copepoda 19 109 39 Cope pods ca 20 0.9 - 208 47 Copepoda ca 25 1.0 - 2.5
-64-
Fork _________ .,.... _S1o!Jla.Qh_C.Qn1e!!t~"':' _______ Species Fish Length Number Examined IDmo Type of Organism - Species Organisms Size IDmo
Go sigalutes 22 Polychaet. 2 105 Some green algae
Go aculeatus Cope pods 57 - 100 - 300 II - many digested
STICHAEIDAE 14 No Gut · 33 Cope pods 7 006 - 200
Ao hexapterus 26 Nil 33 Copepods ' ca 20 004 -1 0 2
Eggs ca 5 0 0 1 40 Cope pods ca 92 002 - 100
Eggs ca 20 0.1
Location: Station flp - 12" Strait of Georgia
-65-
Time (set-hauled net): 1110 - 1120 Dateg April 28, 1966 . . ,
Tow Numberg 44 Course-magneticg 185 0
Remarksg Miller net and I. K. surface trawl Depth bottom - 130 fathoms
Vessel -CoNoA .. Vo "Laymoreff
Number Species of Fish Caught Caught
Oncorhynchus keta 1
Theragra chalcogrammus 1 Hexagrammos decagrammus 4 Ophiodon elongatus 1
Gas·terosteus aculeatus 1 Ammodytes hexapterus post larval 4
Fork
Average length
mme
38
12
25
29
53
34
Stomach Contents
Range of length frequencies
mm.
21 - 2.8
29-42
- - - - - - - - - ~ "'!""" - - - . - - ~ .~ - - ~ - - - - - --. ... Number Species Fish Length Examined mm. Type of Organism - Species Organisms Size mm.
O. keta 38 Cope pods ca 10 1 .8 To chalco grammus 12 Cope pods 15 002 - 006
Ho decagrammus 21 Cope pods ca J5 003 - 105 25 Cope pods ca 30 0 0 8
Oikopleura 2 200 Eggs ca 12 0.1
00 elongatus 29 Cope pods ca 14 108: Euphausiids 2 1.5 - 202
G~ aculeatus 53 Copepods 18 301 " - 'digested'
Fish - Theragra chalcogrammus 1 1000
Ao hexapterus 29 Cope pods ca 5 005 42 Copepoda ca 32 109
-66- .
Location: Station lip - 13" .. ' Lat~ 40/' 19' N Long~ 123 0 53 ; 6 'W. Strait of Georgia
Time (set-hauled net)~ 1200 - 1210 Date: April 28, 1966
Tow Numberg 45 Course-magneticg 185 0
Remarks~ Miller net and I. Ko surface trawl Depth bottom - 200 fathoms
Species of Fish Caught
Oncorhynchus gorbu6cha .
Theragra chalcogrammus
Hexagrammos decagrammus
Ophiodon elongatus
Gasterosteus aculeatus
STICHAEIDAE
Ammodytes hexapterus larval
- - - - - ~ -
Number Caught
1
3
4 J
1
3
1
Average length
Ilim.
35 18
38
30
46 23
25
Range of length frequencies
mmo
14 ;., 20
33 - 46
25 - 33
19 - 30 .
Fork ___________ S1o!!!a£h_CQn1e!lt~ ________ . Species Fiah Length . . . Number Examined Ilim. Type of ·OrgaIiism - Species Organisms Size mID.
O. gorbuscha 35 Copepods ca 17 0.8 - 203 Amphipods 4 0.8 - 1.5
T. chalcogrammus 14 Cope pods 13 0.2 - 0.7 20 Cope pods 12 0.4 - 1.6
Eggs · ca 25 0.1
Ho decagrammus 33 Copepoda . ca 6 3.0 Parasite - Roundworm 1 1000
46 Cope pods 12 1.2 - 304 Amphipods 2 200
00 elongatus 25 .Gopepods ca 35 005 = 009 33 Copepoda 18 109
G. aculeatus 46 Copepoda - tdigested V
STIGHAEIDAE 20 Cope pods ca 30 0.2 - 0.6 30 Cope pods ca 50 0.2 - 0.9
Eggs ca 25 001
Ao hexapterus 25 Nil
-67-
Locationg Station tip - 14." · La.t: 49" 15 J 9'N. Strait of Georgia
Time (set-hauled net) g 1235 - 1245 Dateg April 28, 1966
Tow Number g 46 Course-magnetlcg circl e 'cow
Rema,rks8 Miller net and 10 Ko sur face trawl Depth bottom - 160 fathoms
Ve.asel - CciNoAoV flLaymore fl
~~~~~~~~-==-------~ -~,------------~----~--------------.--~--=.
Species of Fish Caught Number Caught
Average Range of length length frequencies
rom. mm • . ~------------~---~~-- _.- -..-'--------------Hexagrammos deoagranunus
Ophiodon elongatus
STICHAEIDAE
1
11
4
23 - 30
26- 28
Ammodytes hexap-cerus larval 1
18
27
26
23
Speoies Fish Examined
H 0 de cagrammus
0 0 elongatus
STICHAEIDAE
A. hexapterus
Fork Length .
nun.
18
28
23
___________ S.t.o!!!a:.£h_C2n.t.e.!1t~ _______ ~ Number
Type of Organism - Speoies Organisms Size nun.
Cope pods
Stomaohs Damaged
Copepods
Copepoda
oa 15
ca ' 20
ca 20
0.3 - 103
0.3 - 008
0.8
Location~ Station np - 15" Strait of Georgia
-68-
Longg 123 0 26', 5 1 Wo
Time {set-hauled net)g 1835 - 1845 Date~ April 28~ 1966
Tow Numberg 47 Cours8~magneticg circle tow
Remarksg Miller net and I. K. surface trawl Depth bottom - 1 50 fathoms
Species of Fish Caught
Entosphenus tridentatus
Oncorhynchus gorbuscha
Oncorhynchus keta
Ophidon elongatus
Gilbertidia sigalutes
Ammodytes hexapterus larval
Number Caught
1
Average length
rom.
128
35
42 25
23 22
Range of length frequencies
rom.
33 = 37 37 ~ 56
24 - 25 20 = 25
post larval
56 8
4
3
1 4 34 29 ~ 39
~ ~ - - - - - - - - - ~ - - - - - - ~ ~
Fork ___________ S!oma,.gh_C..Qn1e.nt .§. ________
Species Fish Examined
0 0 gorbuscha
00 keta
Oc elongatus
Go sigalutes
Ao hexapterus
Length mm.
33 35 35 36
38 39 56
20
24
22 39
Type of Organism - Species
Cope pods Nil Cope pods Copepods
Nil Cope pods Cope pods Fish - Ophiodon elongatus
- STICHAEIDAE - Ammodytes hexapterus
Stomachs Damaged
Cope pods Amphipods Cope pods Amphipods
Cope pods Cope pods Eggs
Number Organisms Size rom.
ca 10 0.3 - 009
5 1.5 2 108
ca 5 105 3 3.4 4 14.0 6 4.0 - 16 0 0 1 13.0
ca 10 302 7 20 2
ca 5 205 ca 10 0.8 ~ 205
ca 5 004 ca 40 0.9 ca 125 0.1
Locatiom Station Ifp - 15'1 Stralt of Georgia
-69-
lat g 49° 06:: 4" N.
Time (set-hauled net) g 1855 - 1930 Dateg April 28» 1966
Tow Number g 1+8 Course=magneticg circle tow
Remarksg Miller net and Io Ko surface trawl in clear water Depth bottom = 155 fathoms Vessel ~ CoNoAoV "Laymore,1
SpElci es of Fish Caught NUJllber Caught
Average length mm.
Range of length frequencies
mIn.
---=----~----------------------------------.---=~- ---------------------~ Theragra chalcogrammus
Ophiodon elongatus
Gilbertidia sigalutes
STICHAEIDAE Ammodytes hexapterus larval
post larval
12
1
2
2
2 3
14 26
21
23
20 30
10 = 18
19 - 23
i8 - 27
18 - 22 29 - 30
Fork ___________ S1omagh_CQn!egt§. ________ Species Fish . Length Number Examined mm~ Type of Organism- Species Organisms . Size mm.
T. chalcogrammus 12 Cope pods ca 25 0.2 - 0.7 13 Copepods 13 0.2 - 0.8
o. elongatus 26 Stomach Damaged
Go sigalutes 19 Cope pods 7 0.8 - 2.4 . Amphipod t 1 0.7
23 Copepoda .! ca 20 1.9 Arophipods 2 300
STICHAEIDAE 27 Cope pods 28 0.8 - 2.0 Eggs 4 0.4
A. hexapterus 18 Copepods 18 004 22 Nil 30 Cope pods ca 15 0.2 - 1.0
Location: Station flp - 15" Strait of Georgia
-70-
Time {set-haulednet)g 1947 - 1957 Date: April 28, 1966
Tow Number: 49 Course-magnetieg circle tow
Remarksg Miller net and 10 K. surface trawl at 5 ~ 10m in muddy water Depth bottom - 175 fathoms Vessel - CoNoA.V. "IJaymore"
Species of Fish Caught
Oncorhynchus gorbuscha
Oncorhynchus keta
Theragra chalcogrammus
Ophiodon elongatus
Gilbertidia 3igalutes
Fork Species Fish Length Examined mm.
00 gorbuscha 32 33 33 34 35
o. keta 34
36
40
T. chalcogrammus 15 15
00 elongatus 39 49
G. sigalutes 13
19
. Number Caught
83
5
3
2
2
Average length
DlIDo
34
37
15
44 16
Stomach Contents
Range of length frequencies
mrno
· 32 = 36
34 - 40
15 = 16
39 - 49 13 ~ 19 .
---------------------------Number Type of Organism - Species Organisms Size mID.
Nil Cope pods 12 1.0 - 2.3 Cope pods 2 008 Copepods. 5 2.0 Cope pods 5 2.0
Cope pods 2 0.8 Insects ca 20 300 Green Algae Cope pods ca 6 2.0 Insects ca 8 3.0 Cope pods ca 15 0.8 - 1.9 Cope pods ca 10 0 07 - 1.4 Cope pods 5 0.7-1.7
Copepoda 12 0 09 - 2.2 Cope pods ca 10 2.8 Fish - larval ca 4 5.0
Ostracods 13 005-1.5 Cope pods ca 15 0.8 - 104 Cope pods ca 20 2.2
. Locatiom Station ~.p - 151~
Strait of Georgia
-71-
Time (set-hauled net) g 2005 - 2015 Dateg April 28, 1966
Tow NUlTlber~ 50 Cour sl:!=magnetic;g circle tow
Remarksg To Ko surface travl at. 5 = 10 ill
Depth bottom - 155 fat homs
Species of Fish Caught
. heragra chalcogrammus
Gilbertid).a sl galutes
Lumpenella longirostris
Lumpenus sagitta
Ammodytes hexapterus larval post larval
Number Caught
2
1
1
2 2
Average length mm~
15 22
24
43
18 33
Range of length frequencies
Inmo
11 ~ 22
19 = 24.
16 - 19 29 - 37
Fork ___________ S1oma,gh_CQn1e.!lt§. ______ ..... __ Species Fish Length . Number Examined mm·o Type of' Organism - Species Organisms Size mmo
To chalcogre.mmus 12 Cope pods ca 50 0~2 - 0~9 22 Cope pods 7 1.0 - 2~8
Go sigalutes 19 Cope pods 20 102 - 3.2 Fish - larval 1 5.0
24 Cope pods 3 2.5 Amphipods 4 2.0 - 302
L. longirostris 24 Copepoda ca 35 0.3 - 104 L. sagHta 43 Copepoda ca 48 0.4 - 1 .5
l:ggs ca 50 0 0 1 A. hexapterus 19 Cope pods ca 10 002 - 005
37 Cope pods ca 20 004 - 1.3 Eggs ca 10 0 0 1
Location: Station"P - 16" Strait of Georgia
-72:"
Time (set-hauled net)g 2300 - 2310 Date: April 28, 1966
Tow Numberz 51 Course-magneticg circle tow
Remarks: Miller net and 10 Ko surface trawl Depth bottom - 180 fathoms
Number Species of Fish Caught Caught
Oncorhynchus gorbuscha 18 Thaleichthys paeificus 3
Theragra ehalcogrammus 1
Hexagrammos decagrammus 6
Ophiodon elongatus 3
Scorpaenichthys marmoratus 1 Gasterosteus aculeatus 1
STICHAEIDAE 5 Ammodytes hexapterus larval 3
post larval 22
- ~ - - - .... - - - - - - - .... .- - - .... .- ~ - .-=. -
Average Range gf length length frequencies
mmo . DUno
35 33 - 37
139 132 = 145
18 26 20 - 29 29 26 = 34
19 · 67
23 18 - 27 24 23 ~ 25 34 26 - 43
- ......... -=> => c:::3 _ g;Q COl::> ~ C=> <=>
Fork ___________ S1oma,gh_C,Qn,ient.§. ________ Species Fish Length Number Examined rom 0 Type of Organism - Species Organisms Size rom o
00 gorbuscha 33 Nil 34 Cope pods 2 108 36 Cope pods 5 202 - 205 36 Copepods 2 205 36 Copepoda 10 102 - 202 37 Copepods 4 2 0 8 - 302
T. pacificus 65 Nil 122 Nil 134 Nil
To chalcogrammu8 18 Copepods 26 004 - 101
H. decagrammus 20 Copepods ca 35 002 - 102 23 Copepods 6 200 24 Cope pods ca 25 007 - 202
Eggs 6 001 29 Cope pods 16 2.0 - 205
I I
i I I I I I I I \
I
I ..
! I I
-73-
- _.,,-_ ..... Fork _ _ _________ S.1omagh_C.Qn.1ent§._:.... _____ _
Species Fish l ,ength . Number Examined mIDo Type of Organism - Species Organisms Size rom • .
----------------------------------------- .----_.- .,--'-------------0" elongatus
So marmoratus
Go aculeatus
STI CHAETDAE
Ao hexapterus
26 34
19
67
'18
21 22 25
27
26 30
32 36
37 38 41
43
Cope pods Cope pods
Cope pods
Copepods Arophipods
- Parathemisto pacifica
Cope pods Eggs Cope pods Copepods Cope pods Eggs Nil
Nil Copepods Eggs Nil Cope pods Eggs Cope pods Copepods Cope pods Eggs Copepods
3 2 00 - 3 05 13 2 00 - 400
4 10 1 - 1 ,,4
81
2
15 ca 10
5 3
ca 16 ca 30
ca 1-8 ca 20
ca 35 ca 110
7 5
ca 50 ca · 40
300 - 400
2,,0 - 300
0.5 - 1.0 0.1 0.8 - 0.9 '102 - 1,,8 0.5 - 1,,0 0" 1
003 - 008 0.1
0.4 -1.2 001 0.8 - 1.2 0.8 - 1.2 004 - 1.0 0 0 1 1 0 0 - 103 .
Location: Station "P - 16" Strait of Georgia
-74-
Longg 123~ 28. 8' Wo
Time (set-hauled net)g 2305 - 2315 Dateg April 28, 1966
Tow Numberg 52 Course-magnetic: circle tow
Remarksg Miller net and 10 Ko surface trawl at 5 = 10 m Depth bottom - 180 fathoms Vessel = Co N 0 Ao V 0 t'J"aymore tl
Species of Fish Caught
Oncorhynchus gorbuscha
Leuroglossus stilbius
Theragra chalcogrammus
Hexagrammos decagrammus
Ophiodon elongatus
Scorpaenichthys marmoratus
AGONlDAE
STICHAEIDAE
Ammodytes hexapterus post larval
Number Caught
1
16
3
2
5
1
1
5
44
Average length
rom 0
36
68
17
26
22
18
10
23
33
Range of length frequencies
nun 0
45 ~ 90
14 = 19
20 = 31
16 = 25
17 ~ 25
27 ~ 40
Fork ___________ S.toma£h_C.Q.n1ent§. ________ Species Fish Length Number Examined IIlIno Type of Organism - Species Organisms Size IIlIno
00 gorbuscha 36 Copepoda 2 102
Lo stilbiua 45 Nil 55 Euphausiid 1 4 0 0 75 Ostracod 4 108
Copepods aa 4 100 Fish - Eggs oa 12 007 - 108
90 Ostracod c; 105 ./
Copepoda 4 208 Brachyura - larva 1 300
To chalcogrammus 14 Nil 18 Copepods 5 008 - 205 19 Cope pods 3 203
Ho decagrammus 31 Cope pods oa 30 100 - 3 0 0
-75-
Fork Stomach Contents ---------------------------Species Fish Length Number Examined mmo Type of Organism - Species Organisms . Size romo
00 elongatus 24 Nil 24 Cope pods 23 0 0 4-101
Eggs ca 35 0 0 1 S. marmoratus 18 Copepoda 2 205 AGONIDAE 10
STICHAEIDAE 17 Nil 25 Copepods ca 31 003 - 1.4
Eggs. ca 42 0.1 Ao hexapterus 27 Nil
30 Cope pods ca 15 0,03 ~ 101 Eggs 7 0 0 1
35 Cope pods 2 002 - 008 40 Copepods· ca }1 004 ~ 102
Eggs ca 14 001
Location: Station np_ 16" Strait of Georgia
-76-
Time (set-hauled net) ~ 2330 - 2340 Date: April 28, 1966
ToW' Number g . . 53 Course-magnetic: circle toW'
Remarksg Miller net and Io K. surface trawl Depth bottom - 180 fathoms
Number Species of Fish Caught Caught
Ophiodon elongatus 3
STICHAEIDAE 2
Ammodyteshexapterus larval 1 post larval 4
Vessel = CoN 0 Ao V 0 V8LaymQre II
Average Range of length length frequenci.es
mID 0 rom ..
27 22 = 34
19 19
24 32 26 - 35
Fork ___________ S~o!!!a.£h_CQn1e!lt§ ________ Species Fish Examined
00 elongatus
STICHAEIDAE
A. hexapterus
Length rom.
22 34
19 32 35
Type of Organism
Nil Cope pods Eggs
Cope pods
Nil Copepoda Eggs
Number - Species Organisms Size rom ..
ca 45 005 - 3.2 ca 110 00 1
8 0 0 4 - 100
lOa 35 0 0 3 - 0 0 9 ca 60 0.1
-77-/
Location: Station lip - 16[1 Strait of Georgia
Lat:49° 08 . .3' N. Long: , 1230 28 ; 5' W.
Time (set-hauled net): 2345 - 2355 Date: April 28, 1966
Tow Number: 54 Cou.rse-magnetic: circle tow
Remarks g Miller net and 1. K. surface trawl Depth bottom = 175 fath oms
Species of Fish Caught
Ophiodon elongatus
G:l.lberti.dia si galutes
Gasterosteus aculeatus
Lurrlpenella longirostris
Ammodytes hexapterus larval post larval
Number Caught
5
1
1
2
1 J
Average length
mm.
29
15
75
24
25 32
Range 'of length frequencies
mm.
23 - .35
20 - 27
31 - 32
Fork Stomach Contents . ---------------------------Species Fish Length Number Examined Inm., Type of Organism - Species Organisms SiZe mm.
O. elongatus 27 Cope pods ca 56 0 0 3 - 107 Eggs ca 10 0 0 1
35 Cope pods ca 126 0.,5 - 2.,4 Eggs ea 100 0 0 1
Go sigalutes 15 Ostracods 7 1 0 0 Cope pods ca 6 0~6 - 1.,2 lunpbipods 3 104
Go aculeatus 75 Copepods ,ca 75 302 Amphipods 4 1 0 0 - 2.,0 Fish - larval ipartly digested 2
L. longirostris 20 Cope pods 10 0.3 - 0.9 Eggs ca 25 0 0 1
27 Copepods 29 0,,3 - 1.2
Ao hexapterus 25 Cope pods ca 2 0 0 3 - 0 .. 5 31 Copepoda 6 0 .. 4 - 0 0 6
Location: Station up - 17" Strait of Georgia
-78~
Long: 123~ 2~ 5' W.
Time {set-hauled net)g 0010 - 0020 Date~ April 29, 1966
Tow Number~ 55 Course-magnetic: circle tow
Remarks~ Miller net and 1. K. surface trawl in muddy water Depth bottom - 160 fathoms Vessel - CoNoAoV. "Laymore'l
Species of Fish Caught
Oncorhynchus gorbuscha
Oneorhynchus nerka
Thaleichthys pacificus
Hexagrammos decagrammus
Ophiodon elongatus
Gasterosteus aculeatus
STICHAEIDAE
Anarrhichthys ocellatus
Number Caught
11
1
1
1 6 2
3 2
Average length
mIn 0
35
101
137
15.5 31
71 22
.84
Range of length frequencies
rom.
33 - 37
Ammodytes hexapterus larval 4 24
24 - 43",
64 - 78
18 - 24
82 - 86
23 - 25 30 - 42 post la.J:'val 16 38
Fork ___________ S~omaQh_Cont!in1s ________ Species Fish L~ngth Number Examined rom 0 Type of Organism - Species Organisms Size rom 0
O. gorbuscha 33 Cope pods 2 1.5 34 Nil 35 Cope pods 17 105 - 200 36 Insect remains 1 37 Insect - Odonata nymph 1 3.5
91 Copepods + o. nerka 200 · 305-400 Insect - Hymenoptera body 1 5.0
" - wings 2 400
T. pacificus 127
Ho decagrammus 1505 A1nphipod ·1 008
0 .. elongatus 26 Cope pods 56 0.6-103 30 Cope pods 4 103 - 206 43 Cope pods 87 008 - 203
-79-
Fork ___________ S~o!!!a.9h_C.2n~e8t.§. ________ Species Fish Length Number Examined mIn. Type of Organism - Species Organisms Size mm.
i' G. aculeatus 64 Copepods 143 3.0 I 78 Cope pods 157 300 i Amphipod 1 200 j
m'ICHAEIDAE 23 Cope pods 17 0 0 8 - 100
I 24 Cope pods 11 006 - 008
A. ocellatus 82 Fish - Theragra chalcogrammus 5 14Q O - 19.0 86 Fish - Theragra . chalcogrammus 5 1205 - 18.0
A. hexapterus 25 Nil 30 Nil 31 Nil 41 Nil 42 Nil