Russian Federation country information

Common names: Arctic saffron, Navaga, Navaga
Occurrence: endemic
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: Occurs off Murman Coast from Kola Bay eastward (commercial quantities only from East Murman), White Sea and further east to the Gulf of Ob, Kolguev Is. and the western coast of Novaya Zemlya (Ref. 2058). Caught using 'ryuzh' (a local name for a type of net used in northwestern USSR). EurRus
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

قُدّ قطبيّ، بكالاه قطبيّ ، غادس قطبيّ, 宽突鳕, Навага северная, ... 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 : 42.0 cm TL male/unsexed; (Ref. 1371); max. reported age: 12 years (Ref. 72462)

Environment

Marine; freshwater; brackish; demersal; amphidromous; depth range 10 - ? m (Ref. 1371)

Climate / Range

Polar, preferred -1°C (Ref. 107945); 74°N - 62°N, 33°E - 83°E (Ref. 1371)

Distribution

Arctic: White, Barents and Kara seas and from the Kola Bay to the Ob inlet.
Countries | FAO areas | Ecosystems | Occurrences | Introductions

Short description

Dorsal spines (total): 0; Anal spines: 0. Lateral line continuous to about the origin of the second dorsal fin. Head with no lateral line pores. Expanded parapophyses swollen and hollow, beginning on about vertebral centrum 5, containing outpouchings of the swim bladder. Brownish dorsally, becoming paler ventrally; with small dark blotches.

Lives in the coastal sublittoral zone of the White Sea and Arctic coasts of Europe where it reflects a broad adaptation to the ecological conditions of the Arctic (Ref. 1371). Found at shallow depths, along shores with soft, muddy bottoms, close to the ice and on the continental shelf (Ref. 1371). Often caught in greatly freshened and at times completely fresh water, entering mouths and tidal zones of rivers and traveling upstream (Ref. 1371). Feeds mainly on crustaceans and worms, but takes small fishes (Ref. 1371). Taxonomic problems to be solved.

IUCN Red List Status (Ref. 115185)

Not Evaluated

Threat to humans

Harmless

Human uses

Fisheries: commercial

More information

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References
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Check for Aquarium maintenance | Check for Species Fact Sheets | Check for Aquaculture Fact Sheets

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Summary page | Point data | Common names | Photos

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)
4.2 ±0.73 se; Based on food items.

Resilience (Ref. 69278)
Medium, minimum population doubling time 1.4 - 4.4 years (tm=3-4; Fec=20,000)

Vulnerability (Ref. 59153)
Moderate to high vulnerability (50 of 100)

Price category (Ref. 80766)
High

Eleginus nawaga (Walbaum, 1792)