Japan country information

Common names: [No common name]
Occurrence: native
Salinity: marine
Abundance: | Ref:
Importance: commercial | Ref:
Aquaculture: never/rarely | Ref:
Regulations: no regulations | Ref:
Uses: no uses
Comments: Known from the Coast of northern Honshu (Ref. 1522, 85211). C: Refs. 1522, 1394, 85211, M: Ref. 1394.
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: Jefferson, T.A., S. Leatherwood and M.A. Webber, 1993
National Database:

Common names from other countries

Balakiki, ... more

Classification / Names / Names Populaire namen | Synoniemen | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS

> Cetartiodactyla () > Delphinidae (marine or true dolphins)

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

Pelagisch; oceanodroom (Ref. 75906); diepteverspreiding 0 - 5300 m (Ref. 116169). Tropical; 22°C - ? (Ref. 75906); 90°N - 90°S, 180°W - 180°E

Verspreiding Landen | FAO regio's | Ecosystems | Voorkomen | Introducties

Atlantic Ocean and Indo-Pacific: Stenella attenuata graffmani: Gulf of California and Colombia; Stenella attenuata subspecies A: Hawaii; Stenella attenuata subspecies B: Baja California Sur, Colombia. Tropical to temperate.

Length at first maturity / Size / Gewicht / Leeftijd

Maturity: L_m 182.0 range ? - ? cm Max length : 260 cm TL mannelijk/geslacht niet bekend; (Ref. 1394); 240 cm TL (female); Maximaal gepubliceerd gewicht: 120.0 kg (Ref. 1394)

Major threats to this species is incidental catches specifically by tuna fishermen in the eastern Pacific, and as sustainable by-catch with the use of gillnets in the Pacific and northern Indian Ocean (Ref. 85211). Spends the majority of their day nearshore, often between 90 to 300 m (Ref. 122680 but they also frequent oceanic waters (Ref. 801). They move further offshore at night into deeper waters to search for prey (Ref. 122680). Feeds largely on epipelagic fish and squid (Ref. 1394). It associates with parasites such as nematodes, cestodes, trematodes and acanthocephalans and commensals that includes cyamids amphipod, and barnacles (Ref. 85211). Social groups are formed by a range of a few individuals to thousands. It is composed of cow-calf pairs, adults and juveniles and they are grouped together or separately by juveniles or breeding groups. Their school size varies within the day (Ref. 85211).

Voornaamste referentie Referenties | Coördinator | Medewerkers

Tan, J.M.L. 1995. (Ref. 936)

Status op de Rode Lijst van het IUCN (Ref. 130435)

Niet bedreigd (LC) ; Date assessed: 05 April 2018

Status bij CITES (Ref. 108899)

Appendix II: International trade monitored

CMS (Ref. 116361)

Appendix II: Migratory species conserved through agreements

Gebruik door de mens

Visserij: commercieel
FAO - Visserij: landings, soortsprofiel | FishSource | Sea Around Us

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Ontwikkeling van de eieren

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Internet-bronnen

Estimates based on models

Preferred temperature (Ref. 115969): 2.3 - 5.6, mean 3.5 (based on 2741 cells).

Weerstandsvermogen (Ref. 69278) Gemiddeld, minimale populatieverdubbelingstijd 1,4-4,4 jaar (K=0.2-0.37; tm=12).

Kwetsbaarheid (Ref. 71543): Very high vulnerability (84 of 100).

Prijsklasse (Ref. 80766): Unknown.

Stenella attenuata (Gray, 1846)