Russian Federation country information

Common names: Dal'nevostochnaya navaga, Navaga, Pacific saffron cod
Occurrence: native
Salinity: freshwater
Abundance: abundant (always seen in some numbers) | Ref: Cohen, D.M., T. Inada, T. Iwamoto and N. Scialabba, 1990
Importance: highly commercial | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Known to inhabit freshwater lakes (on the Bering and Bol'shoi Shantarskie isalnds and Lake Nerpich'e in the Kamchatka Peninsula (Ref. 26334). Found on Cape Olyutorski in the western Bering Sea (Ref. 6793). Sakhalin and Kamchatka (Ref. 37812); Northern Primor'ye shelf (Ref. 45905). Used for human consumption, fresh or frozen. Also Ref. 1371, 6793, 27547. nEurRus
National Checklist:
Country Information: httpss://www.cia.gov/library/publications/resources/the-world-factbook/geos/rs.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Reshetnikov, Y.S., N.G. Bogutskaya, E.D. Vasil'eva, E.A. Dorofeeva, A.M. Naseka, O.A. Popova, K.A. Savvaitova, V.G. Sideleva and L.I. Sokolov, 1997
National Database:

Classification / Names

Actinopterygii (ray-finned fishes) > Gadiformes (Cods) > Gadidae (Cods and haddocks)
Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL

Common names from other countries

Вахня (дальневосточная навага), Morne boréale, Bacalao del Artico, ... more

Main reference

Cohen, D.M., T. Inada, T. Iwamoto and N. Scialabba. 1990. (Ref. 1371)
References | Biblio | Coordinator | Collaborators

Size / Weight / Age

Max length : 55.0 cm TL male/unsexed; (Ref. 1371); max. published weight: 1.3 kg (Ref. 56527); max. reported age: 15 years (Ref. 56527)

Length at first maturity
L_m 30.0 range ? - ? cm

Environment

Marine; freshwater; brackish; demersal; amphidromous; depth range 0 - 300 m (Ref. 50550)

Climate / Range

Polar, preferred 5°C (Ref. 107945); 75°N - 30°N, 124°E - 123°W (Ref. 54430)

Distribution

North Pacific: Chemulpo in North Korea (Yellow Sea) in the southwest to Sitka, Alaska in the southeast. Beyond the Bering Strait from Cape Lisburne in Chukchi Sea and east to Dease Strait (south coast of Victoria Island). Precise delimitation of the range depends on additional taxonomic study.
Countries | FAO areas | Ecosystems | Occurrences | Introductions

Short description

Dorsal spines (total): 0; Dorsal soft rays (total): 44-59; Anal spines: 0; Anal soft rays: 39 - 47; Vertebrae: 57 - 64. Distinguished by the presence of 3 dorsal and 2 anal fins, a lower jaw that is shorter than the upper, a chin barbel that is no longer than half the eye diameter, and a space between the second and third dorsal fins that is equal to or longer than the eye diameter (Ref. 27547). Lateral line curved in front, ending under the second dorsal fin (Ref. 27547); head with no lateral line pores (Ref. 1371). Expanded parapophyses swollen and hollow, beginning on about the vertebral centrum 9 or 10, containing outpouchings of the swim bladder (Ref. 1371). Second pelvic ray produced; caudal truncate or slightly emarginate (Ref. 27547). Grayish brown above, upper part of sides paler, sometimes with a silvery-violet shading, often mottled with indistinct darker blotches; lower sides and belly yellowish to silver white; fins dusky, dorsal and caudal with white edges (Ref. 27547).

Occurs in shallow coastal waters (Ref. 1371). Enters rivers and may go considerable distances upstream, but usually remaining within regions of tidal influence (Ref. 1371, 27547). Adults exhibit seasonal movements: inshore during winter for purposes of spawning and offshore during summer for feeding (Ref. 1371). Juveniles and adults are opportunistic epibenthic feeders; juveniles feed on fish and small benthic crustaceans (Ref. 1371). Taxonomic problems to be solved.

IUCN Red List Status (Ref. 115185)

Not Evaluated

Threat to humans

Harmless

Human uses

Fisheries: highly commercial

More information

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Internet sources

Estimates of some properties based on models

Phylogenetic diversity index (Ref. 82805)
PD₅₀ = 0.7500 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Trophic Level (Ref. 69278)
4.1 ±0.6 se; Based on diet studies.

Resilience (Ref. 69278)
Medium, minimum population doubling time 1.4 - 4.4 years (tm=2-3; Fec=4,900)

Vulnerability (Ref. 59153)
Moderate to high vulnerability (53 of 100)

Price category (Ref. 80766)
High

Eleginus gracilis (Tilesius, 1810)