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Oncorhynchus mykiss (Walbaum, 1792)

Rainbow trout
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Native range | All suitable habitat | Point map | Year 2050
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Oncorhynchus mykiss   AquaMaps   Data sources: GBIF OBIS
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Costa Rica country information

Common names: [No common name]
Occurrence: introduced
Salinity: freshwater
Abundance: | Ref:
Importance: | Ref:
Aquaculture: commercial | Ref: FAO Fishery Information, Data and Statistics Service, 1993
Regulations: | Ref:
Uses: no uses
Comments: Introduced to high elevation localities and maintain reproducing populations in some (Ref. 36880).
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/cs.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Bussing, W.A., 1998
National Database:

Common names from other countries

Classification / Names ชื่อสามัญ | ชื่อพ้อง | Catalog of Fishes(สกุล, ชนิด) | ITIS | CoL | WoRMS | Cloffa

> Salmoniformes (Salmons) > Salmonidae (Salmonids) > Salmoninae
Etymology: Oncorhynchus: Greek, onyx, -ychos = nail + Greek, rhyngchos = snout (Ref. 45335);  mykiss: Oncorhynchus=hooked snout; mykiss=a vernacular name for the species in Kamchatka, Russia (Ref. 79012).
  More on author: Walbaum.

Environment: milieu / climate zone / depth range / distribution range นิเวศวิทยา

เกี่ยวกับทะเล,น้ำเค็ม; น้ำจืด; กร่อย กลุ่มสัตว์หน้าดิน,กลุ่มสัตว์พื้นท้องน้ำ; ปลาที่อพยพจากแหล่งน้ำเค็มไปวางไข่ในแหล่งน้ำจืด (Ref. 51243); ระดับความลึก 0 - 200 m (Ref. 50550).   Subtropical; 10°C - 24°C (Ref. 12741); 67°N - 32°N, 135°E - 117°W

การแพร่กระจาย ประเทศต่างๆ | พื้นที่จำแนกตาม FAO | ระบบนิเวศหลายระบบ | การปรากฏขึ้น,การเกิดขึ้น,พบ | Point map | การแนะนำ | Faunafri

Pacific Slope from Kuskokwim River drainage in Alaska to Otay River drainage in California, USA. Widely introduced and established in Canada and USA, including Arctic, Atlantic, Great Lakes, Mississippi River, and Rio Grande basins, and elsewhere in the world (Ref. 86798). 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.

Length at first maturity / ขนาด / น้ำหนัก / Age

Maturity: Lm ?  range ? - ? cm
Max length : 122 cm TL เพศผู้/กระเทย; (Ref. 96339); common length : 60.0 cm TL เพศผู้/กระเทย; (Ref. 5504); น้ำหนักสูงสุดที่มีการรายงาน: 25.4 kg (Ref. 7251); อายุสูงสุดที่ได้รายงาน: 11 ปี (Ref. 12193)

Short description เครื่องมือที่ใช้ในการแยกชนิดสัตว์,สิ่งมีชีวิตออกจากกัน | สัณฐานวิทยา | ความยาวต่างๆ

เงี่ยงครีบหลัง (รวม) : 0; ก้านครีบอ่อนที่หาง (รวม) : 14 - 16; เงี่ยงครีบก้น: 0; ก้านครีบอ่อนที่ก้น: 6 - 12; สัตว์มีกระดูกสันหลัง: 60 - 66. Diagnosis: Body elongate, somewhat compressed especially in larger fish. No nuptial tubercles but minor changes to head, mouth and color occur especially in spawning males. Colouration varies with habitat, size, and sexual condition; stream residents and spawners darker, colours 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: 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).

ชีววิทยา     ภาคผนวก (เช่น epibenthic)

Inhabit clear, cold headwaters, creeks, small to large rivers, lakes, and intertidal areas (Ref. 86798). 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).

Life cycle and mating behavior Maturities | การสืบพันธุ์ | Spawnings | Egg(s) | Fecundities | ตัวอ่อน

Reported not to establish breeding populations if the peak emergence of fry corresponds to flood season and cold summer temperatures and if temperature does not fall below 13° C (Ref. 59043). Males mature generally at 2 years and females at 3. Spawning happens from November until May in the Northern hemisphere and from August to November on the Southern hemisphere. The size of the eggs depends on the size of the female. In captivity spawning is fostered by abdominal massage. Egg size 3-6 mm, fry length after hatching 12-20 mm. Hatchlings are well developed and equipped with a large yolk sac. The female finds a spot and digs a pit. While digging, an attendant male courts her or is busy driving away other males. As soon as the pit is completed, the female drops into it and is immediately followed by the male. The pair is side by side, they open their mouth, quiver and release egg and sperm. Females produce from 700 to 4,000 eggs per spawning event (Ref. 4706). At this point, a subordinate male moves in and releases sperm into the nest. The female quickly moves to the upstream edge of the nest and starts digging a new pit, covering the eggs. The whole process is repeated for several days until the female deposits all her eggs (Ref. 27547). Young fish move downstream at night, shortly after emergence (Ref. 4706). Reproductive strategy: synchronous ovarian organization, determinate fecundity (Ref. 51846).

Main reference Upload your references | อ้างอิง | ผู้ประสานงาน | ผู้ร่วมมือ

Page, L.M. and B.M. Burr, 2011. A field guide to freshwater fishes of North America north of Mexico. Boston : Houghton Mifflin Harcourt, 663p. (Ref. 86798)

IUCN Red List Status (Ref. 130435)


CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Potential pest




Human uses

การประมง: เน้นการพาณิชย์; การเพาะเลี้ยงสัตว์น้ำ: การค้า; การตกปลาเป็นกีฬา: ใช่
FAO(Aquaculture systems: การผลิต, species profile; การประมง: การผลิต; publication : search) | FishSource | ทะเลรอบๆเรา

ข้อมูลเพิ่มเติม

Trophic ecology
รายการอาหาร
Diet compositions
Food consumptions
Food rations
ผู้ล่า
Ecology
นิเวศวิทยา
Home ranges
Human related
Aquaculture systems
ประวัติการเพาะเลี้ยงสัตว์น้ำ
สายพันธุ์
Ciguatera cases
Stamps, coins, misc.

เครื่องมือ

Special reports

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แหล่งที่มาจากอินเตอร์เน็ต

Estimates based on models

Preferred temperature (Ref. 115969): 1.3 - 10, mean 5.4 (based on 315 cells).
Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00933 (0.00730 - 0.01193), b=3.03 (2.98 - 3.08), in cm Total Length, based on LWR estimates for this species (Ref. 93245).
ระดับชั้นอาหาร (Ref. 69278):  4.1   ±0.3 se; based on diet studies.
ความสามารถในการกลับคืนสู่ปกติ (Ref. 120179):  ขนาดกลาง, เวลาต่ำสุดที่จะทำให้ประชากรเพิ่มขึ้นเป็น 2 เท่าใช้เวลา 1.4 - 4.4 ปี (K=0.38-0.46; tm=2-5; tmax=11; Fec=200).
Fishing Vulnerability (Ref. 59153):  Moderate vulnerability (43 of 100).
Climate Vulnerability (Ref. 125649):  Moderate to high vulnerability (52 of 100).
Price category (Ref. 80766):   Low.