CEPHALOPODS - Food and Agriculture Organization · 2006. 3. 7. · ventral view 203 CEPHALOPODS...
Transcript of CEPHALOPODS - Food and Agriculture Organization · 2006. 3. 7. · ventral view 203 CEPHALOPODS...
dorsal view
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CEPHALOPODS
OMMASTREPHIDAE
Ommastrephes bartrami (Le Sueur, 1821)
FAO names : En - Flying squid; Fr - Encornet volant; Sp - Pota saltadora.
Size : females 50 cm (mantle length), males somewhat smaller.
Fishing gear : of potential value; caught elsewhere with squid jigs and dipnets (use of light).
Habitat : oceanic, near the surface at night.
Loc.name(s) :
Ommastrephes pteropus Steenstrup, 1855
FAO naives : En - Orangeback squid; Fr - Encornet dos orange; Sp - Pota naranja.
Size : females 37 cm (mantle length), males smaller.
Fishing gear : of potential value; caught elsewhere with squid jigs and dipnets (use of light).
Habitat : oceanic.
Loc.name(s) :
golden or silvery band
on mid ventral line
ventral view
foveola lateral pockets
funnel groove with foveola and lateral pockets (character
of the genus)
large luminous
plate
mid-dorsal line darker
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CEPHALOPODS OMMASTREPHIDAE
Ornithoteuthis antillarum Adam, 1957
FAO names : En - Bird squid ; Fr - Encornet oiseau; Sp - Pota pajarito.
Size : 20 cm mantle length.
Fishing gear : squid jigs, dipnets, bottom trawls (during the day), midwater trawls (at night).
Habitat : oceanic, from the surface to about 1100 m depth.
Loc.name(s) :
Todarodes sagittatus sagittatus (Lamarck, 1799)
FAO names : En - European flying squid; Fr - Toutenon commun; Sp - Pota europea.
Size : males 75 cm, females 49 cm (mantle length).
Fishing gear : bottom trawls.
Habitat : from the surface to 1000 m depth, migrates towards the coast in large schools.
Loc.name(s) :
foveola with 7-11 folds
funnel groove with foveola
a band of luminous tissue, usually pink,
along ventral mid-line
dorsal view
mantle drawn into a pointed tail
foveola
funnel groove with foveola
4 rows of suckers
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CEPHALOPODS
OMMASTREPHIDAE
funnel groove without foveola
Todaropsis eblanae (Ball, 1841)
FAO names : En - Lesser flying squid; Fr - Encornet souffleur; Sp - Pota costera.
Size : males 16 cm, females 24 cm (mantle length).
Fishing gear : bottom trawls (bycatch).
Habitat : coastal waters, near sandy and muddy bottoms, from 20 to 650 m depth (at temperatures ranging from 9 to 18°C).
Loc.name(s) :
Ancistroteuthis lichtensteini (Orbigny, 1839)
FAO names : En - Angel squid; Fr - Cornet archange; Sp - Luria paloma.
Size : 30 cm mantle length.
Fishing gear: pelagic trawls (bycatch).
Habitat : pelagic, from the surface to about 250 m depth.
Loc.name(s) :
4 rows of suckers
distal end of tentacular club
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ONYCHOTEUTHIDAE
luminous organs absent from
intestinal tract
hooks
tentacles very long
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CEPHALOPODS
ONYCHOTEUTHIDAE
Onychoteuthis banksi (Leach, 1817)
FAO names : En - Hooked squid ; Fr - Cornet crochu ; Sp - Luria ganchuda.
Size : 29 cm mantle length.
Fishing gear : of potential value; could be caught with jigs and liftnets (use of light)).
Habitat : oceanic, from 150 to 800 m depth.
Loc.name(s) :
Thysanoteuthis rhombus Troschel, 1857
FAO names : En - Rhomboid squid; Fr - Chipiloua commun; Sp - Chipirón volantín.
Size : 100 cm, common to 60 cm mantle length.
Fishing gear : of potential value; could be caught with set nets and drifting jigs.
Habitat : pelagic, often seen in small schools in surface waters; lower limits of its depth distribution unknown.
Loc.name(s) :
viscera (after removal of ventral
portion of mantle)
hooks
rachis of gladius with a strong crest shining
through the mantle along ventral midline
dorsal view
THYSANOTEUTHIDAE
eyes open
mantle thick, muscular, fins broad and
lozangic, occupying entire length of mantle
luminousorgans
intestinaltract
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CEPHALOPODS
OCTOPODA - OCTOPUSES
Internal shell reduced or absent; 8 arms, no tentacles.
OCTOPODIDAE
Octopus defilippi Verany, 1851
FAO names : En - Lilliput longarm octopus; Fr - Poulpe à longs bras; Sp - Pulpito patilago.
Size : 9 cm mantle length.
Fishing gear : bottom trawls (bycatch).
Habitat : benthic, on sandy to muddy bottoms from 6 to 60 m depth.
Loc.name(s) :
Octopus macropus Risson, 1826
FAO names : En - White-spotted octopus; Fr - Poulpe tacheté; Sp - Pulpo patudo.
Size : 100 cm total length, common to 80 cm.
Fishing gear : bottom trawls, artisanal fishing gear (spears, hooks, lures, traps).
Habitat : rocky and coralline bottoms from 1 to 20 m depth.
Loc.name(s) :
Octopus vulgaris Cuvier, 1797
FAO names : En - Common octopus; Fr - Pieuvre; Sp - Pulpo común.
Size : females 115 cm, males 130 cm (total length), common to 2.5 kg (fresh weight).
Fishing gear : bottom trawls.
Habitat : indifferent habitats from the coastline to 200 m depth.
Loc.name(s) :
arms extremely long and slender
ligula short
tip of hectocotylized arm 3 of male
1 st (dorsal) pair of arms longest and
stoutest
ligula long
tip of hectocotylized arm
(in males)
Colour blue-green, with large white spots dorsally on mantle, head and
arms; becomes brick red when disturbed
arms about equally long and thick
ligula short
colour variable, usually marbled with brown, white and beige
tip of 3rd hectocotylized arm
(in males)
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