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 Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS

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

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

Pelagic; oceanodromous (Ref. 75927); depth range 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)

Distribution Countries | FAO areas | Ecosystems | Occurrences | Introductions

Northern and Western Pacific and Northeast Atlantic.

Length at first maturity / Size / Weight / Age

Maturity: L_m ? range ? - ? cm Max length : 50 cm ML (female); common length : 30.0 cm ML male/unsexed; (Ref. 97142); max. published weight: 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 Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

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 References | Coordinator | Collaborators

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

Fisheries: commercial
FAO - Fisheries: landings, species profile | FishSource | Sea Around Us

Tools

E-book | Field guide

More information

Countries
FAO areas
Ecosystems
Occurrences
Introductions
Stocks
Ecology
Diet
Food items

Common names
Synonyms
Predators
Reproduction
Maturity
Spawning
Fecundity
Eggs
Egg development

Age/Size
Growth
Length-weight
Length-length
Morphology
Larvae
Abundance

References
Mass conversion

Collaborators
Pictures

Internet sources

Estimates based on models

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

Resilience (Ref. 69278) High, minimum population doubling time less than 15 months (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)