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Oncorhynchus mykiss  (Walbaum, 1792)

Rainbow trout
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Oncorhynchus mykiss
Picture by McDowall, R.M.


country information

Common names: [No common name]
Occurrence:
Salinity:
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments:
National Checklist:
Country Information:
National Fisheries Authority:
Occurrences: Occurrences Point map
National Database:

Classification / Names

Lớp phụ (Subclass) cá vây tia > Salmoniformes (Salmons) > Salmonidae (Salmonids) > Salmoninae
Tên thường gặp | Các synonym ( Các tên trùng) | Catalog of Fishes (gen., sp.) | ITIS | CoL

Common names from other countries

Main reference

Bộ gần gũi / Khối lượng (Trọng lượng) / Age

Max length : 122 cm TL con đực/không giới tính; (Ref. 96339); common length : 60.0 cm TL con đực/không giới tính; (Ref. 5504); Khối lượng cực đại được công bố: 25.4 kg (Ref. 7251); Tuổi cực đại được báo cáo: 11 các năm (Ref. 12193)

Length at first maturity
Lm ?  range ? - ? cm

Môi trường

; Biển; Nước ngọt; Thuộc về nước lợ Sống nổi và đáy; di cư biển sông (để đẻ trứng) (Ref. 51243); Mức độ sâu 0 - 200 m (Ref. 50550)

Khí hậu / Phạm vi

Subtropical; 10°C - 24°C (Ref. 12741), preferred 8°C (Ref. 107945); 67°N - 32°N, 135°E - 117°W

Sự phân bố

Native to Pacific Slope from Kuskokwim River, Alaska to (at least) Rio Santa Domingo, Baja California, Mexico; upper Mackenzie River drainage (Arctic basin), Alberta and British Columbia in Canada; endorheic basins of southern Oregon, USA. Widely introduced in cold waters elsewhere in North America and rest of the world (Ref. 5723). Eastern Pacific: Kamchatkan Peninsula and have been recorded from the Commander Islands east of Kamchatka and sporadically in the Sea of Okhotsk as far south as the mouth of the Amur River along the mainland. The records outside Kamchatka probably represent migrating or straying Kamchatkan steelhead (penshinensis) rather than the established native population (Reg. 50080). Several countries report adverse ecological impact after introduction.
Các nước | Các khu vực của FAO | Các hệ sinh thái | Những lần xuất hiện | Những chỉ dẫn

Short description

Các tia vây lưng cứng (tổng cộng): 0; Các vây lưng mềm (tổng cộng): 10-12; Tia cứng vây hậu môn 0; Tia mềm vây hậu môn: 8 - 12; Động vật có xương sống: 60 - 66. Body elongate, somewhat compressed especially in larger fish. No nuptial tubercles but minor changes to head, mouth and color occur especially in spawning males. Coloration varies with habitat, size, and sexual condition. Stream residents and spawners darker, colors more intense. Lake residents lighter, brighter, and more silvery. Caudal fin with 19 rays (Ref. 2196). Differs from Oncorhynchus gorbuscha by having the following unique characters: by having the following unique characters: anal fin with 6-9½ (usually 8½ ) branched rays; 115-130 scales in midlateral row; 16-17 gill rakers; breeding males lacking hump; juveniles lacking parr marks; wide pink to red stripe from head to caudal base, except in sea-run form; and juveniles with 5-10 parr marks (Ref. 59043).

Sinh học     Tự điển (thí dụ epibenthic)

Adults inhabit cold headwaters, creeks, small to large rivers, and lakes. Anadromous in coastal streams (Ref. 5723). Stocked in almost all water bodies as lakes, rivers and streams, usually not stocked in water reaching summer temperatures above 25°C or ponds with very low oxygen concentrations. Feed on a variety of aquatic and terrestrial invertebrates and small fishes. At the sea, they prey on fish and cephalopods. Mature individuals undertake short spawning migrations. Anadromous and lake forms may migrate long distances to spawning streams (Ref. 59043). Utilized fresh, smoked, canned, and frozen; eaten steamed, fried, broiled, boiled, microwaved and baked (Ref. 9988). Cultured in many countries and is often hatched and stocked into rivers and lakes especially to attract recreational fishers (Ref. 9988).

IUCN Red List Status (Ref. 115185)

Threat to humans

  Potential pest



Human uses

Các nghề cá: tính thương mại cao; Nuôi trồng thủy sản: Tính thương mại; cá để chơi: đúng

Các công cụ

Special reports

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Các nguồn internet

Estimates of some properties based on models

Phylogenetic diversity index (Ref. 82805)
PD50 = 0.5000 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Mức dinh dưỡng (Ref. 69278)
4.1   ±0.3 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 (K=0.38-0.46; tm=2-5; tmax=11; Fec=200)

Vulnerability (Ref. 59153)
Moderate vulnerability (36 of 100)
Price category (Ref. 80766)
Low