Gadus morhua   Linnaeus, 1758

Atlantic cod
Catalog of Fishes (gen., sp.) | ITIS | CoL
Classification
Actinopterygii | Gadiformes | Gadidae
Synonyms
Common names
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Main reference
Size / Weight / Age
Max length : 200 cm TL male/unsexed; (Ref. 1371); common length : 100.0 cm TL male/unsexed; (Ref. 1371); max. published weight: 96.0 kg (Ref. 9988); max. reported age: 25 years (Ref. 173)
Environment
Benthopelagic; oceanodromous (Ref. 51243); brackish; marine; depth range 0 - 600 m (Ref. 1371), usually 150 - 200 m (Ref. 54441)
Climate / Range
Temperate; ? - 20°C (Ref. 9988); 80°N - 35°N, 95°W - 61°E (Ref. 1371)
Distribution
Northwest to Northeast Atlantic: Cape Hatteras to Ungava Bay along the North American coast; east and west coast of Greenland; around Iceland; coasts of Europe from the Bay of Biscay to the Barents Sea, including the region around Bear Island.
Countries | FAO areas | Ecosystems | Occurrences | Introductions
Short description
Dorsal spines (total): 0; Dorsal soft rays (total): 44 - 55; Anal spines: 0; Anal soft rays: 33 - 45; Vertebrae: 51 - 55. Color varies from brownish to greenish or gray dorsally and on upper sides, becoming pale and silvery ventrally. Lateral line light, curving upward to above the pectoral fin. Predorsal distance less than 1/3 of total length, body depth about 1/5 of total length. Peritoneum silvery.
Biology
    Glossary (e.g. epibenthic)
This is an epibenthic-pelagic species (Ref. 58426). It is widely distributed in a variety of habitats, from the shoreline down to the continental shelf. Cod form schools during the day. Cod are omnivorous; they feed at dawn or dusk on invertebrates and fish, including young cod. Cod spawn once a year, in batches (Ref. 51846). The most important stocks are the Norwegian Arctic stock in the Barents Sea and the Icelandic stock. The populations around Greenland and Newfoundland have declined dramatically (Ref. 35388). Results of a 30-yr time-series analysis of a heavily exploited population supports the hypothesis that size-selective fishing induces genetic changes in growth -- small size-at-age continued despite little fishing for over a decade and good conditions for growth (Ref. 81225; 81226). Older and larger cod had been found to produce larger eggs with neutral buoyancy which can be crucial to egg and larval survival (Refs. 31930; 38384). Cod is marketed fresh, dried or salted, smoked and frozen; eaten steamed, fried, broiled, boiled, microwaved and baked (Ref. 9988). Over 12 nucleotide substitutions in the 307 base pair region of the mitochondrial cytochrome b gene differentiate this species from Gadus ogac (Ref. 40214).
IUCN Red List Status (Ref. 57073)
Threat to humans
  Vulnerable (VU) (A1bd)
  Harmless
Human uses
Fisheries: highly commercial; aquaculture: commercial; gamefish: yes
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Estimation of some characteristics with mathematical models
Resilience (Ref. 69278)
Medium, minimum population doubling time 1.4 - 4.4 years (rm=0.2-1.1; also Musick et al. 2000 (Ref. 36717))
Vulnerability (Ref. 59153)
Price category (Ref. 80766)
High vulnerability (65 of 100)

Entered by Luna, Susan M.



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Page last modified by : elaxamana, 15 July 2009

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