Jumbo squid (Dosidicus gigas), studies from Mexico ... · San José, El Sausoso, Pichilingue, San...
Transcript of Jumbo squid (Dosidicus gigas), studies from Mexico ... · San José, El Sausoso, Pichilingue, San...
![Page 1: Jumbo squid (Dosidicus gigas), studies from Mexico ... · San José, El Sausoso, Pichilingue, San Evaristo La Paz Loreto Ensenada Blanca, Ligui, Loreto Mulegé, Bahía Concepción,](https://reader034.fdocuments.us/reader034/viewer/2022042808/5f8af9ac7a90287e76715365/html5/thumbnails/1.jpg)
Jumbo squid (Dosidicus gigas), studies from
Mexico. Fishery, Ecology & Climate
Salinas-Zavala C.A. &CIBNOR-Jumbo-Squid-Team:
S. Camarillo-Coop, A. Mejia-Rebollo, R. Rosas-Luis, J. Ramos-Castillejos, R. Ramírez-Rojo, D Arizmendi, G. Bazzino, N. Dimaté & U. Markaida-Aburto.
[email protected] Honolulu, Hawaii, nov. 2006
![Page 2: Jumbo squid (Dosidicus gigas), studies from Mexico ... · San José, El Sausoso, Pichilingue, San Evaristo La Paz Loreto Ensenada Blanca, Ligui, Loreto Mulegé, Bahía Concepción,](https://reader034.fdocuments.us/reader034/viewer/2022042808/5f8af9ac7a90287e76715365/html5/thumbnails/2.jpg)
•FISHERY.•Geographical context. Transition Climate Zone•Landings & Retrospective•Socioeconomics aspects
•ECOLOGY.•Gulf of California Studies
•Populations structure variability•Juveniles studies
•West Coast of Baja & California Current Studies•Adults Spatial Distribution•Growth & Age•Feeding•Paralarvae collected
•CLIMATE•ENSO vs. Spatial distribution changes•Biological Action Centers (BAC´S)•Some indicators of parallelisms between south/north hemispheres
•REMARCKS
OUTLINE
![Page 3: Jumbo squid (Dosidicus gigas), studies from Mexico ... · San José, El Sausoso, Pichilingue, San Evaristo La Paz Loreto Ensenada Blanca, Ligui, Loreto Mulegé, Bahía Concepción,](https://reader034.fdocuments.us/reader034/viewer/2022042808/5f8af9ac7a90287e76715365/html5/thumbnails/3.jpg)
FISHERY
![Page 4: Jumbo squid (Dosidicus gigas), studies from Mexico ... · San José, El Sausoso, Pichilingue, San Evaristo La Paz Loreto Ensenada Blanca, Ligui, Loreto Mulegé, Bahía Concepción,](https://reader034.fdocuments.us/reader034/viewer/2022042808/5f8af9ac7a90287e76715365/html5/thumbnails/4.jpg)
Transition Zone
Oceanic thermic condition
FisheryGeographic context
High interannual variability
![Page 5: Jumbo squid (Dosidicus gigas), studies from Mexico ... · San José, El Sausoso, Pichilingue, San Evaristo La Paz Loreto Ensenada Blanca, Ligui, Loreto Mulegé, Bahía Concepción,](https://reader034.fdocuments.us/reader034/viewer/2022042808/5f8af9ac7a90287e76715365/html5/thumbnails/5.jpg)
0
20,000
40,000
60,000
80,000
100,000
120,000
140,000
1971
1974
1977
1980
1983
1986
1989
1992
1995
1998
2001
2004
2007
Land
ings
(t)
FisheryLandings & Retrospective
Arti
sana
lper
iod Ja
pane
seex
plor
ing
No
fishi
ngpe
riod
La N
iña
88-8
9
El N
iño
cond
ition
s
Per
iod
high
abun
danc
e
El N
iño
97-9
8La
Niñ
a 99
-00
Exp
lorin
gw
estc
oast
El N
iño
03-0
4
2005
Fishing in west coast
![Page 6: Jumbo squid (Dosidicus gigas), studies from Mexico ... · San José, El Sausoso, Pichilingue, San Evaristo La Paz Loreto Ensenada Blanca, Ligui, Loreto Mulegé, Bahía Concepción,](https://reader034.fdocuments.us/reader034/viewer/2022042808/5f8af9ac7a90287e76715365/html5/thumbnails/6.jpg)
FisherySocioeconomics aspects
Populations dynamicsscarce knowledge.Fourth fishery in Mexico.Employs more than 3,500 fishermens in the NorthwestMexico.Mantain the fishery industryactive & create parallelindustries.Beneficious for the regional people.High potential todevelopment add valueindustry.
![Page 7: Jumbo squid (Dosidicus gigas), studies from Mexico ... · San José, El Sausoso, Pichilingue, San Evaristo La Paz Loreto Ensenada Blanca, Ligui, Loreto Mulegé, Bahía Concepción,](https://reader034.fdocuments.us/reader034/viewer/2022042808/5f8af9ac7a90287e76715365/html5/thumbnails/7.jpg)
FisherySocioeconomics aspects
0.00
0.50
1.00
1.50
2.00
2.50
3.00
3.50
4.00
1995 1996 1997 1998 1999 2000 2001 2002 2003Year
Ship Average Price Pangas Average Price
Aver
age
pric
eon
beac
h(p
esos
)
Table I. Nominal & Real average price of Jumbo Squid in Guaymas for 1995 and 2003
*Deflactation used Index of products-prices from Bank of Mexico 1994=0. Source: Data from landings records of major & minor boats, Fishery Office in Guaymas, Son.
Pangas Ships
1995 2003 1995 2003
Average nominal price 1.33 1.32 1.43 1.64 Average real price* 0.81 0.34 0.86 0.43
Price of 2003 equivalent to 1995
1.7 2.6
![Page 8: Jumbo squid (Dosidicus gigas), studies from Mexico ... · San José, El Sausoso, Pichilingue, San Evaristo La Paz Loreto Ensenada Blanca, Ligui, Loreto Mulegé, Bahía Concepción,](https://reader034.fdocuments.us/reader034/viewer/2022042808/5f8af9ac7a90287e76715365/html5/thumbnails/8.jpg)
ECOLOGY
¨To increase the knowledge for the management of marine resources¨
![Page 9: Jumbo squid (Dosidicus gigas), studies from Mexico ... · San José, El Sausoso, Pichilingue, San Evaristo La Paz Loreto Ensenada Blanca, Ligui, Loreto Mulegé, Bahía Concepción,](https://reader034.fdocuments.us/reader034/viewer/2022042808/5f8af9ac7a90287e76715365/html5/thumbnails/9.jpg)
FEMALES
1996 1997 1998 1999 2003 2004YEAR
10
20
30
40
50
60
70
80
ML
(cm
)
MALES
1996 1997 1998 1999 2003 2004YEAR
10
20
30
40
50
60
70
80
ML
(cm
)
EcologyGulf of California Studies
1. Interannual variability of the populations structure
Bazzino, et al., 2006 submitted
Our results indicate the existence of a strong variability in the population structure of jumbo squid within the Gulf of California, mainly at level of the sizes structure, which is reflected in the size of first maturity. The changes in the abundance and population structure of jumbo squid seem to be related not only to the occurrence of events El Niño but also to the intensity or magnitude of such. Figure show interannual variability of the mantle dorsal length (MDL) of jumbo squid in Santa Rosalía, BCS, Mexico. Data before 2003 from Markaida (2002 & 2006)
![Page 10: Jumbo squid (Dosidicus gigas), studies from Mexico ... · San José, El Sausoso, Pichilingue, San Evaristo La Paz Loreto Ensenada Blanca, Ligui, Loreto Mulegé, Bahía Concepción,](https://reader034.fdocuments.us/reader034/viewer/2022042808/5f8af9ac7a90287e76715365/html5/thumbnails/10.jpg)
EcologyGulf of California Studies
2. Presence of paralarvae
0
20
40
60
80
100
J F M A M J J A S O N D
Months
Ind.
2003 2004
During 2003 and 2004 were made in Santa Rosalia BCS monthly, nocturnal and superficial trawls with a conical simple net (60 cm of diameter and 505 µ). Organisms corresponding to the Rhynchoteuthion paralarvae characteristic of the Family Ommastrephidae were collected, which would indicate that the area is also used to carry out the spawning of this specie.
![Page 11: Jumbo squid (Dosidicus gigas), studies from Mexico ... · San José, El Sausoso, Pichilingue, San Evaristo La Paz Loreto Ensenada Blanca, Ligui, Loreto Mulegé, Bahía Concepción,](https://reader034.fdocuments.us/reader034/viewer/2022042808/5f8af9ac7a90287e76715365/html5/thumbnails/11.jpg)
Ecology
Presence of juveniles in the Gulf of California & West Coast
In research cruises inside and outside the Gulf of California, juveniles organisms with MDL between 1,81 - 8,58 cm were collected with dip-net, which suggests an ample distribution of the spawning & nursery grounds. These organisms are preserved in alcohol for future genetic analyses
![Page 12: Jumbo squid (Dosidicus gigas), studies from Mexico ... · San José, El Sausoso, Pichilingue, San Evaristo La Paz Loreto Ensenada Blanca, Ligui, Loreto Mulegé, Bahía Concepción,](https://reader034.fdocuments.us/reader034/viewer/2022042808/5f8af9ac7a90287e76715365/html5/thumbnails/12.jpg)
Ecology
Importance of the jumbo squid in the pelagic ecosystem of the Gulf of California
Nombre del Grupo Biomasa (ton/km-2)
P/B base anual
Q/B base anual
EE
1 Aves marinas 0.01300 0.379 73.769 2 Cachalote 0.03 0.03 5.275 3 Mamíferos marinos 0.015 0.08 20.252 4 Tiburones pelágicos 0.473 7.628 0.736 5 Pelágicos mayores 0.195 1.257 9.747 0.7 6 Pelágicos medianos 1.109 0.885 5.198 0.965 7 Pelágicos menores 5.742 4.505 15.722 0.94 8 Demersales 1.792 0.956 3.782 0.869 9 Myctophidae 0.863 1.592 7.262 0.803 10 Calamar gigante 0.568 3.252 13.819 11 Eufausidos 1.1 7 24.886 12 Langostilla 2.7 1.201 17.362 13 Macrobentos 0.8320 3.48 12.704 0.907 14 Camarones 0.59 2.29 26.198 15 Zooplancton 12 25.678 86.264 0.900 16 Meiobentos 2.113 11.284 39.52 17 Fitoplancton 95.952 0.9 18 Detritus 3
Control top-down in central part of the Gulf of California
Rosas-Luis, 2005
![Page 13: Jumbo squid (Dosidicus gigas), studies from Mexico ... · San José, El Sausoso, Pichilingue, San Evaristo La Paz Loreto Ensenada Blanca, Ligui, Loreto Mulegé, Bahía Concepción,](https://reader034.fdocuments.us/reader034/viewer/2022042808/5f8af9ac7a90287e76715365/html5/thumbnails/13.jpg)
Sampling squid
Ecology
West Coast off Peninsula of Baja California Studies
![Page 14: Jumbo squid (Dosidicus gigas), studies from Mexico ... · San José, El Sausoso, Pichilingue, San Evaristo La Paz Loreto Ensenada Blanca, Ligui, Loreto Mulegé, Bahía Concepción,](https://reader034.fdocuments.us/reader034/viewer/2022042808/5f8af9ac7a90287e76715365/html5/thumbnails/14.jpg)
Ecology
West Coast off Peninsula of Baja California Studies
-118 -116 -114 -112 -110
24
26
28
30
32
IMECOCAL 0401/02
-118 -116 -114 -112 -11022
24
26
28
30
32
100.45
113.35
117.45
123.45123.42
127.6
1 00.45
11 3 .35
1 17.45
1 23 .451 23 .42
127 .6
IMECOCAL 0404/05
-118 -116 -114 -112 -11022
24
26
28
30
32
110.6
113.5
117.55
120.6120.65
123.6127.45
127.5
130.5
133.55
137.5137.45
IMECOCAL 0407
-118 -116 -114 -112 -11022
24
26
28
30
32
103.5
107.55
110.45110.4110.37
113.4113.45
113.6
117.65117.6117.55
120.65
123.6
123.42
127.45127.5
127.55
130.5
IMECOCAL 0410
-118 -116 -114 -112 -11022
24
26
28
30
32
IMECOCAL 0501/02
-118 -116 -114 -112 -11022
24
26
28
30
32
IMECOCAL 0504/05
-118 -116 -114 -112 -11022
24
26
28
30
32
-118 -116 -114 -112 -11022
24
26
28
30
32
IMECOCAL 0510
2004
2005
Adults distribution
Mejia-Rebollo, 2006
The presence of the adults has been continouslythe last two years
![Page 15: Jumbo squid (Dosidicus gigas), studies from Mexico ... · San José, El Sausoso, Pichilingue, San Evaristo La Paz Loreto Ensenada Blanca, Ligui, Loreto Mulegé, Bahía Concepción,](https://reader034.fdocuments.us/reader034/viewer/2022042808/5f8af9ac7a90287e76715365/html5/thumbnails/15.jpg)
Ecology
West Coast off Peninsula of Baja California Studies
Growth & AgeTable II. Statistics comparation between growth curves of jumbo squid D. gigas from West coast 2004 & Gulf of California 1995-1997, in accordance for Integral Logistic Model. N number of individuals, SCR Residual square residuals, MCR Residual Exp2, *** P<0.001 Sex N Parameters SCR MCR F(3,385) P Females CO GC
143 247
Y∞ =877.5 K=0.009536 To=234.9 Y∞=896.1 K=0.0118 To=235
1255.39 489250
8.9035 2005
51.50 ***
Males CO GC
46 133
Y∞=792.1 K= 0.01065 To=214.3 Y∞=842.1 k=0.0116 to=223.3
328.4971 236077
7.465 1815
12.24 ***
Mejia-Rebollo, 2006
Data for GC from Markaida, 2002
The growing parameters are statistically differentbetween GC and CO
![Page 16: Jumbo squid (Dosidicus gigas), studies from Mexico ... · San José, El Sausoso, Pichilingue, San Evaristo La Paz Loreto Ensenada Blanca, Ligui, Loreto Mulegé, Bahía Concepción,](https://reader034.fdocuments.us/reader034/viewer/2022042808/5f8af9ac7a90287e76715365/html5/thumbnails/16.jpg)
Ecology
West Coast off Peninsula of Baja California Studies
Feeding
Tabla III. Porcentage of preys in the diet of jumbo squid in the west coast of Baja California Peninsula
Preys 2004 2005 Pleuroncodes planipes 61.45 74.77 Vincingueria spp 12.71 8.41 Mictophidae 2.78 2.04 Copepoda 10.25 Pteropoda 2.72 0.51 Piscies 0.90 3.56 Octopoda 0.11 0.59 Teuthidae 2.91 1.78 MONI 1.63 2.21 Others 4.54 6.13
Rosas-Luis, in prepation
Main prey
![Page 17: Jumbo squid (Dosidicus gigas), studies from Mexico ... · San José, El Sausoso, Pichilingue, San Evaristo La Paz Loreto Ensenada Blanca, Ligui, Loreto Mulegé, Bahía Concepción,](https://reader034.fdocuments.us/reader034/viewer/2022042808/5f8af9ac7a90287e76715365/html5/thumbnails/17.jpg)
Ecology
West Coast off Peninsula of Baja California Studies
Feeding during the day
¨…..During a research cruise on board of BIP XII of the CIBNOR at March, 2005 were observed jumbo squids feeding during the day and surface at 23° 26.84´ LN and 110° 39.84´ LW (12:35 p.m.). The great abundance of red crab (Pleuroncodesplanipes) in the surface was evident and the squids swam throughout of them. When they were feeding elevated its arms and tentacles outside the water. Nine organisms were collected, eight were females in stages III, IV & V of maturity and one male in advanced stage of maturity V. The average of MDL was of 73,9 (♀) and 63,0 (♂) cm. Figure show squid feeding red crab in surface during the day and squid with red crab between arms.….¨
![Page 18: Jumbo squid (Dosidicus gigas), studies from Mexico ... · San José, El Sausoso, Pichilingue, San Evaristo La Paz Loreto Ensenada Blanca, Ligui, Loreto Mulegé, Bahía Concepción,](https://reader034.fdocuments.us/reader034/viewer/2022042808/5f8af9ac7a90287e76715365/html5/thumbnails/18.jpg)
Ecology
West Coast off Peninsula of Baja California Studies
Paralarvae preserved on ethanol
Ramos-Castillejos, in preparation
252 Rhynchoteuthion2005
![Page 19: Jumbo squid (Dosidicus gigas), studies from Mexico ... · San José, El Sausoso, Pichilingue, San Evaristo La Paz Loreto Ensenada Blanca, Ligui, Loreto Mulegé, Bahía Concepción,](https://reader034.fdocuments.us/reader034/viewer/2022042808/5f8af9ac7a90287e76715365/html5/thumbnails/19.jpg)
CLIMATE
¨Scales of variability & marine resources¨
![Page 20: Jumbo squid (Dosidicus gigas), studies from Mexico ... · San José, El Sausoso, Pichilingue, San Evaristo La Paz Loreto Ensenada Blanca, Ligui, Loreto Mulegé, Bahía Concepción,](https://reader034.fdocuments.us/reader034/viewer/2022042808/5f8af9ac7a90287e76715365/html5/thumbnails/20.jpg)
Climate
ENSO vs Changes Distribution of Jumbo Squid
Puerto Adolfo López Mateos, Buena Vista, Aguas Litorales, Bahía Magdalena, Isla Magdalena, Puerto San Carlos, Banderitas, Punta
Entrada Bahía Magdalena
Bahía de la Paz, Isla Espíritu Santo, San Juan de la Costa, El Coyote, Isla San José, El Sausoso, Pichilingue, San Evaristo
La Paz
Ensenada Blanca, Ligui, Loreto Loreto
Mulegé, Bahía Concepción, Punta Chivato, San Nicolás, Bahía de Santa Inés, El Coloradito, Isla San Marcos, Roca Lobos
Mulegè
San BrunoSan Bruno
San LucasSan Lucas
Santa Rosalía, Santa María, Cabo Vírgenes Santa Rosalía
Fishing siteAREA
Puerto Adolfo López Mateos, Buena Vista, Aguas Litorales, Bahía Magdalena, Isla Magdalena, Puerto San Carlos, Banderitas, Punta
Entrada Bahía Magdalena
Bahía de la Paz, Isla Espíritu Santo, San Juan de la Costa, El Coyote, Isla San José, El Sausoso, Pichilingue, San Evaristo
La Paz
Ensenada Blanca, Ligui, Loreto Loreto
Mulegé, Bahía Concepción, Punta Chivato, San Nicolás, Bahía de Santa Inés, El Coloradito, Isla San Marcos, Roca Lobos
Mulegè
San BrunoSan Bruno
San LucasSan Lucas
Santa Rosalía, Santa María, Cabo Vírgenes Santa Rosalía
Fishing siteAREA
Dimaté, 2004
La Niña 1999
El Niño 1997
![Page 21: Jumbo squid (Dosidicus gigas), studies from Mexico ... · San José, El Sausoso, Pichilingue, San Evaristo La Paz Loreto Ensenada Blanca, Ligui, Loreto Mulegé, Bahía Concepción,](https://reader034.fdocuments.us/reader034/viewer/2022042808/5f8af9ac7a90287e76715365/html5/thumbnails/21.jpg)
Climate
Basin effects on changes distribution of Jumbo Squid?
![Page 22: Jumbo squid (Dosidicus gigas), studies from Mexico ... · San José, El Sausoso, Pichilingue, San Evaristo La Paz Loreto Ensenada Blanca, Ligui, Loreto Mulegé, Bahía Concepción,](https://reader034.fdocuments.us/reader034/viewer/2022042808/5f8af9ac7a90287e76715365/html5/thumbnails/22.jpg)
Jumbo squid from West Coast off Baja
![Page 23: Jumbo squid (Dosidicus gigas), studies from Mexico ... · San José, El Sausoso, Pichilingue, San Evaristo La Paz Loreto Ensenada Blanca, Ligui, Loreto Mulegé, Bahía Concepción,](https://reader034.fdocuments.us/reader034/viewer/2022042808/5f8af9ac7a90287e76715365/html5/thumbnails/23.jpg)
Possible mechanism to explain the expansion ofDosidicus gigas population into the north hemisphere
![Page 24: Jumbo squid (Dosidicus gigas), studies from Mexico ... · San José, El Sausoso, Pichilingue, San Evaristo La Paz Loreto Ensenada Blanca, Ligui, Loreto Mulegé, Bahía Concepción,](https://reader034.fdocuments.us/reader034/viewer/2022042808/5f8af9ac7a90287e76715365/html5/thumbnails/24.jpg)
Dosidicus gigas
118° 116° 114° 112°24°
26°
28°
30°
32° 9801-02
1 - 1516 - 63
64 - 255
256 - 1023
Org / 1000 m
118° 116° 114° 112°
9807
3
?
Camarillo-Coop, 2006
![Page 25: Jumbo squid (Dosidicus gigas), studies from Mexico ... · San José, El Sausoso, Pichilingue, San Evaristo La Paz Loreto Ensenada Blanca, Ligui, Loreto Mulegé, Bahía Concepción,](https://reader034.fdocuments.us/reader034/viewer/2022042808/5f8af9ac7a90287e76715365/html5/thumbnails/25.jpg)
BACsBACs
Punta BandaPunta BandaPunta EugeniaPunta EugeniaBahía MagdalenaBahía Magdalena
San Diego San Diego BightBightMontereyMonterey BayBay
1997
2000+
Olig
otro
phic
wat
ers
When El Niño events…
![Page 26: Jumbo squid (Dosidicus gigas), studies from Mexico ... · San José, El Sausoso, Pichilingue, San Evaristo La Paz Loreto Ensenada Blanca, Ligui, Loreto Mulegé, Bahía Concepción,](https://reader034.fdocuments.us/reader034/viewer/2022042808/5f8af9ac7a90287e76715365/html5/thumbnails/26.jpg)
Exist parallelisms betweenSouth & North Hemispheres?
![Page 27: Jumbo squid (Dosidicus gigas), studies from Mexico ... · San José, El Sausoso, Pichilingue, San Evaristo La Paz Loreto Ensenada Blanca, Ligui, Loreto Mulegé, Bahía Concepción,](https://reader034.fdocuments.us/reader034/viewer/2022042808/5f8af9ac7a90287e76715365/html5/thumbnails/27.jpg)
0
20,000
40,000
60,000
80,000
100,000
120,000
1986
1988
1990
1992
1994
1996
1998
2000
2002
Año
Cap
tura
(t)
0
50000
100000
150000
200000
250000
1991
1992
1993
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
2005
*
tons
Jigging Fleet Artisanal fleet Total* Pre liminary
0
2000
4000
6000
8000
10000
12000
14000
16000
1960 1965 1970 1975 1980 1985 1990 1995 2000
Land
ings
(t)
Jumbo squid Landings
Mexico Peru
Chile
370,000 t in 2005!
![Page 28: Jumbo squid (Dosidicus gigas), studies from Mexico ... · San José, El Sausoso, Pichilingue, San Evaristo La Paz Loreto Ensenada Blanca, Ligui, Loreto Mulegé, Bahía Concepción,](https://reader034.fdocuments.us/reader034/viewer/2022042808/5f8af9ac7a90287e76715365/html5/thumbnails/28.jpg)
37° N - 40° S 125° WSurface – 1500 m
Main concentrations zones
México: Central region of theGulf of California
• Sudamérica: Coast of Perú & ChileAfter Wormuth, 1998
Sitka, Alaska
Chiloe, Chile
Photo: Dr. Hochberg
Spreading distribution
![Page 29: Jumbo squid (Dosidicus gigas), studies from Mexico ... · San José, El Sausoso, Pichilingue, San Evaristo La Paz Loreto Ensenada Blanca, Ligui, Loreto Mulegé, Bahía Concepción,](https://reader034.fdocuments.us/reader034/viewer/2022042808/5f8af9ac7a90287e76715365/html5/thumbnails/29.jpg)
La Jolla, 2002
New Port Beach2004
Chiloe, Chile 2004
Puerto Montt, Chile 2004
Strandings
![Page 30: Jumbo squid (Dosidicus gigas), studies from Mexico ... · San José, El Sausoso, Pichilingue, San Evaristo La Paz Loreto Ensenada Blanca, Ligui, Loreto Mulegé, Bahía Concepción,](https://reader034.fdocuments.us/reader034/viewer/2022042808/5f8af9ac7a90287e76715365/html5/thumbnails/30.jpg)
JUMBO SQUID ARE SPREADING ITS JUMBO SQUID ARE SPREADING ITS GEOGRAPHIC DISTRIBUTION IN BOTH GEOGRAPHIC DISTRIBUTION IN BOTH HEMISPHERES.HEMISPHERES.
KEY QUESTION
YES
![Page 31: Jumbo squid (Dosidicus gigas), studies from Mexico ... · San José, El Sausoso, Pichilingue, San Evaristo La Paz Loreto Ensenada Blanca, Ligui, Loreto Mulegé, Bahía Concepción,](https://reader034.fdocuments.us/reader034/viewer/2022042808/5f8af9ac7a90287e76715365/html5/thumbnails/31.jpg)
RemarksJumbo squid is one of the most important fishery in Mexico
Recently is more frequently in the California Current
This specie is a voracious and active predator
It has an important paper in the trophic structure of the pelagic ecosystem
ENSO affect the distribution of Jumbo Squid in northwest Mexico
Already cross the border!
The next questions are:
How many years it will remain here?
Exist parallelism between south & north hemisphere spreading squids?
We need study the habitat & long term climate fluctuations
![Page 32: Jumbo squid (Dosidicus gigas), studies from Mexico ... · San José, El Sausoso, Pichilingue, San Evaristo La Paz Loreto Ensenada Blanca, Ligui, Loreto Mulegé, Bahía Concepción,](https://reader034.fdocuments.us/reader034/viewer/2022042808/5f8af9ac7a90287e76715365/html5/thumbnails/32.jpg)
Grupo Calamar GiganteCIBNOR
Dr. César A. Salinas Zavalae-mail [email protected]
Thanks!
New Horizon cruise, 2006
Dosidicus gigaswild egg mass
Artificial fertilization
NEWS!!