Japan country information

Common names: [No common name]
Occurrence: native
Salinity: marine
Abundance: abundant (always seen in some numbers) | Ref:
Importance: commercial | Ref:
Aquaculture: never/rarely | Ref:
Regulations: no regulations | Ref:
Uses: no uses
Comments: Commercially important species in Japan with recent annual catches of over 500 thousand tons (Ref. 81298)
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/ja.html
National Fisheries Authority: http://www.maff.go.jp/eindex.html
Occurrences: Occurrences Point map
Main Ref: Roper, C.F.E., M.J. Sweeney and C.E. Nauen, 1984
National Database:

Common names from other countries

Akaika, ... more

Classification / Names / Names Populärnamn | synonymer | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS

> Oegopsida () > Ommastrephidae (flying squids and arrow squids) > Todarodinae

Environment: milieu / climate zone / depth range / distribution range Ekologi

Pelagiska; havsvandrande (Ref. 75927); djupintervall 0 - 500 m (Ref. 275), usually 0 - 100 m (Ref. 275). Temperate; 5°C - 27°C (Ref. 275), preferred 9°C (Ref. 107945); 63°N - 18°N, 110°E - 135°W (Ref. 275)

Utbredning Länder | FAO områden | Ekosystem | Förekomster | Utplanteringar

Northern and Western Pacific and Northeast Atlantic.

Length at first maturity / Size / Vikt / Age

Maturity: L_m ? range ? - ? cm Max length : 50 cm ML (female); common length : 30.0 cm ML hane/ej könsbestämd; (Ref. 97142); publicerad maxvikt: 500.00 g (Ref. 275)

Common weight: 100 to 300 g (Ref. 275). Depth range is 36 to 184 m; and temperature is 12 to 20°C in Ref. 75927. Fished with jigging machines, demersal trawls, purse seines and set nets (Ref. 81298). Lives in surface waters of open oceans and coastal areas (Ref. 843). Feeds on myctophids, anchovies, crustaceans, gastropod larvae, chaetognaths (Ref. 275).

Life cycle and mating behavior Könsmognad | Reproduktion | Lek | Ägg | Fecundity | Larver

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.

Main reference referenser | Koordinator | Medarbetare

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

IUCN Red List Status (Ref. 130435)

Least Concern (LC) ; Date assessed: 10 May 2010

CITES status (Ref. 108899)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Human uses

Fiskeri: kommersiell
FAO - fiskeri: landings, species profile | FishSource | Sea Around Us

Verktyg

E-book | Fälthandbok

Ytterligare information

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Ekosystem
Förekomster
Utplanteringar
Stocks
Ekologi
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Populärnamn
synonymer
Predatorer
Reproduktion
Könsmognad
Lek
Fecundity
Ägg
Egg development

Age/Size
Tillväxt
Length-weight
Length-length
Morfologi
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referenser
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Estimates based on models

Preferred temperature (Ref. 115969): 7.7 - 23.4, mean 18.3 (based on 366 cells).

Resiliens (Ref. 69278) Hög, lägsta populationsfördubblingstid mindre än 15 månader (K=2.85-3.34).

Prior r = 1.18, 95% CL = 0.78 - 1.77, Based on 2 full stock assessments.

Vulnerability (Ref. 71543): Low vulnerability (10 of 100).

Price category (Ref. 80766): Medium.

Todarodes pacificus (Steenstrup, 1880)