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Gadus morhua  Linnaeus, 1758

Atlantic cod
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Gadus morhua
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Classification / Names Tên thường gặp | Các synonym ( Các tên trùng) | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Lớp phụ (Subclass) cá vây tia > Gadiformes (Cods) > Gadidae (Cods and haddocks)
Etymology: Gadus: Latin, gadus = a fish, cod? (Ref. 45335).   More on author: Linnaeus.

Môi trường / Khí hậu / Phạm vi Sinh thái học

; Biển; Thuộc về nước lợ Sống nổi và đáy; Ở đại duơng, biển (Ref. 51243); Mức độ sâu 0 - 600 m (Ref. 1371), usually 150 - 200 m (Ref. 54441).   Temperate; 0°C - 15°C; 83°N - 35°N, 95°W - 86°E (Ref. 1371)

Sự phân bố Các nước | Các khu vực của FAO | Các hệ sinh thái | Những lần xuất hiện | Point map | Những chỉ dẫn | Faunafri

North Atlantic and Arctic: Ungava Bay in Canada along the North American coast to Cape Hatteras; North Carolina in the western Atlantic. East and west coast of Greenland; around Iceland; from Barents Sea including the region around Bear Island along the European coast to Bay of Biscay (Ref. 88171).

Length at first maturity / Bộ gần gũi / Khối lượng (Trọng lượng) / Age

Maturity: Lm 63.4, range 31 - 74 cm
Max length : 200 cm TL con đực/không giới tính; (Ref. 1371); common length : 100.0 cm TL con đực/không giới tính; (Ref. 1371); Khối lượng cực đại được công bố: 96.0 kg (Ref. 9988); Tuổi cực đại được báo cáo: 25 các năm (Ref. 173)

Short description Hình thái học | Sinh trắc học

Các tia vây lưng cứng (tổng cộng): 0; Các vây lưng mềm (tổng cộng): 44-55; Tia cứng vây hậu môn 0; Tia mềm vây hậu môn: 33 - 45; Động vật có xương sống: 51 - 55. Protruding upper jaw, a conspicuous barbel on the lower jaw, and light lateral line, curved above the pectoral fins. Predorsal distance is less than one third of total length; body depth about 1/5 of total length. Color varies from brownish to greenish or gray dorsally and on upper sides, becoming pale and silvery ventrally. Peritoneum silvery.

Sinh học     Tự điển (thí dụ epibenthic)

Widely distributed in a variety of habitats, from the shoreline down to the continental shelf. Juveniles prefer shallow (less than 10-30 m depth) sublittoral waters with complex habitats, such as seagrass beds, areas with gravel, rocks, or boulder, which provide protection from predators (Refs. 89383, 89384). Adults are usually found in deeper, colder waters. During the day, form schools and swim about 30-80 m above the bottom, dispersing at night to feed (Ref. 1371, 89385). Omnivorous; feed at dawn or dusk on invertebrates and fish, including young cod. (Ref. 1371). Migrate between spawning, feeding and overwintering areas, mostly within the boundaries of the respective stocks. Migrations >200 km are rare occurrences (Refs. 89386, 89387). Marketed fresh, dried or salted, smoked and frozen; eaten steamed, fried, broiled, boiled, microwaved and baked (Ref. 9988).

Life cycle and mating behavior Chín muồi sinh dục | Sự tái sinh sản | Đẻ trứng | Các trứng | Sự sinh sản | Ấu trùng

Spawning occurs in winter and beginning of spring, where big schools are formed. Spawning sites are in offshore waters, at or near the bottom, in 50-200 m depth and 0-12 °C (preferred range 0-6°C) (Refs. 1371, 89387). May form spawning aggregations in the water column when bottom temperatures are unsuitable (Ref. 1371). Different spawning areas may be used in subsequent years (Ref. 89387). Embryo development lasts about 14 days (at 6°C) and larval phase lasts about 3 months(at 8°C). Fecundity ranges from 2.5 million eggs in a 5 kg female to a record of 9 million eggs in a 34 kg female. Reported number of batches spawned in an experiment is 8 - 22 (Ref. 5513). Sex ratio is nearly 50%, with slight predominance of females. Classified as a determinate multiple spawner (Ref. 40290). Older and larger cod had been found to produce larger eggs with neutral buoyancy at lower salinities. This can be crucial to egg and larval survival (Refs. 31930, 38384). Larvae are pelagic up to 2.5 months before settling on the bottom (Ref. 1371). In the Baltic, spawning cumulates in March at depths below 20 m near the bottom. The nursery areas are in the inner coastal zone. Recruitment to the fished stock starts below 2 years and peaks at about 3 years of age (Ref. 5947).

Main reference Upload your references | Các tài liệu tham khảo | Người điều phối | Người cộng tác

Cohen, D.M., T. Inada, T. Iwamoto and N. Scialabba, 1990. FAO species catalogue. Vol. 10. Gadiform fishes of the world (Order Gadiformes). An annotated and illustrated catalogue of cods, hakes, grenadiers and other gadiform fishes known to date. FAO Fish. Synop. 125(10). Rome: FAO. 442 p. (Ref. 1371)

CITES (Ref. 115941)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans


Human uses

Các nghề cá: tính thương mại cao; Nuôi trồng thủy sản: Tính thương mại; cá để chơi: đúng
FAO(Nuôi trồng thủy sản: Sản xuất, species profile; Các nghề cá: Sản xuất, species profile; publication : search) | FIRMS (Stock assessments) | FishSource | Biển chung quanh ta

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Estimates of some properties based on models

Preferred temperature (Ref. 115969): 0.5 - 10.3, mean 6.6 (based on 769 cells).
Phylogenetic diversity index (Ref. 82805):  PD50 = 0.6250   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00708 (0.00629 - 0.00796), b=3.08 (3.04 - 3.12), in cm Total Length, based on LWR estimates for this species (Ref. 93245).
Mức dinh dưỡng (Ref. 69278):  4.1   ±0.2 se; Based on diet studies.
Thích nghi nhanh (Ref. 69278):  Trung bình, thời gian nhân đôi của chủng quần tối thiểu là 1.4 - 4.4 năm (rm=0.2-1.1; also (Ref. 36717)).
Prior r = 0.47, 2 SD range = 0.23 - 0.96, log(r) = -0.76, SD log(r) = 0.36, Based on: 15 M, 56 K, 98 tgen, 2 tmax, 37 Fec records
Vulnerability (Ref. 59153):  High to very high vulnerability (65 of 100) .
Price category (Ref. 80766):   Medium.