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Berryteuthis magister   (Berry, 1913)

schoolmaster gonate squid
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Classification Common names | Synonyms | CoL | ITIS | WoRMS

Cephalopoda | Teuthida | Gonatidae

Main reference References | Biblio | Coordinator | Collaborators

Roper, C.F.E., M.J. Sweeney and C.E. Nauen. 1984. (Ref. 275)

Size / Weight / Age

Max length : 28.0 cm ML male/unsexed; (Ref. 104302); max. reported age: 4 years (Ref. 104304)

Environment

Bathypelagic; depth range 0 - 1500 m (Ref. 275)

Climate / Range

Tropical; 66°N - 32°N, 127°E - 125°W (Ref. 275)

Distribution Countries | FAO areas | Ecosystems | Occurrences | Introductions

North Pacific. Tropical to polar climates.

Biology     Glossary (e.g. epibenthic)

Maximum depth from Ref. 104112. Occurs in the outer edge of continental shelf and slope. Juveniles are mostly in midwater at mesopelagic depths; adults mainly occur in bottom layers in the upper bathyal zone. Exhibits diel vertical migration (Ref. 104112). Members of the class Cephalopoda are gonochoric. Male and female adults usually die shortly after spawning and brooding, respectively. Mating behavior: Males perform various displays to attract potential females for copulation. During copulation, male grasp the female and inserts the hectocotylus into the female's mantle cavity where fertilization usually occurs. Life cycle: Embryos hatch into planktonic stage and live for some time before they grow larger and take up a benthic existence as adults (Ref. 833).

IUCN Red List Status (Ref. 114614)

CITES status (Ref. 94142)

Not Evaluated

Threat to humans

Human uses

Fisheries: commercial
FAO(fisheries: production) | FisheriesWiki |

More information

Countries
FAO areas
Ecosystems
Occurrences
Introductions
Stocks
Ecology
Diet
Food items
Age/Size
Growth
Length-weight
Length-length
Morphology
Larvae
Abundance

Internet sources

BHL | BOLD Systems | Check for other websites | Check FishWatcher | CISTI | DiscoverLife | FAO(fisheries: ; publication : search) | GenBank (genome, nucleotide) | GOBASE | Google Books | Google Scholar | Google | ispecies | PubMed | Scirus | FishBase | Tree of Life | uBio | uBio RSS | Wikipedia (Go, Search) | Zoological Record

Estimation of some characteristics with mathematical models

Vulnerability (Ref. 71543)
Low vulnerability (15 of 100)
Price category (Ref. 80766)
Medium