You can sponsor this page

Oncorhynchus kisutch (Walbaum, 1792)

Coho salmon
مشاهدات خود را اضافه کنيد در Fish Watcher
Native range | All suitable habitat | Point map | Year 2050
This map was computer-generated and has not yet been reviewed.
Oncorhynchus kisutch   AquaMaps   Data sources: GBIF OBIS
را بارگذاری کني تصاوير و فيلم ها
Pictures | Videos | تصوير گوگل
Image of Oncorhynchus kisutch (Coho salmon)
Oncorhynchus kisutch
Male picture by Keeley, E.R.


Japan country information

Common names: Gin-zake
Occurrence: native
Salinity: freshwater
Abundance: scarce (very unlikely) | Ref: Sokolovskaya, T.G., A.S. Sokolovskii and E.I. Sobolevskii, 1998
Importance: commercial | Ref:
Aquaculture: commercial | Ref: FAO Fishery Information, Data and Statistics Service, 1993
Regulations: | Ref:
Uses: no uses
Comments: Occurs in Hokkaido (Ref. 1998). Presumably introduced. Has been recognized to be established in the country or found in the wild (Ref. 53301). Also Ref. 2850, 27436, 37812, 96339.
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/ja.html
National Fisheries Authority: http://www.maff.go.jp/eindex.html
Occurrences: Occurrences Point map
Main Ref: Masuda, H., K. Amaoka, C. Araga, T. Uyeno and T. Yoshino, 1984
National Database:

Common names from other countries

رده بندی / Names اسامي عام | مترادف | Catalog of Fishes(جنس, گونه ها) | ITIS | CoL | WoRMS | Cloffa

> Salmoniformes (Salmons) > Salmonidae (Salmonids) > Salmoninae
Etymology: Oncorhynchus: Greek, onyx, -ychos = nail + Greek, rhyngchos = snout (Ref. 45335);  kisutch: Most probably a typo in the emendada p720 for kisutch, which is the vernacular name of this fish in Kamtchatka (Ref. 1998).
  More on author: Walbaum.

Environment: milieu / climate zone / depth range / distribution range بوم شناسي

دريايي; آب شيرين; لب شور; رود کوچ (Ref. 51243); تغييرات عمق 0 - 250 m (Ref. 50550).   Subtropical; 0°C - 25°C (Ref. 35682); 72°N - 22°N, 135°E - 111°W (Ref. 117423)

پراكنش كشورها | مناطق سازمان خوار و بار جهاني (FAO) | Ecosystems | ظهور | Point map | معرفي | Faunafri

North Pacific: distributed from the Anadyr River in Russia south towards Hokkaido, Japan, and from Point Hope in Alaska southwards to Chamalu Bay in Baja California, Mexico.

Size / Weight / سن

Maturity: Lm ?  range ? - ? cm
Max length : 108 cm TL جنس نر / بدون خواص جنسي; (Ref. 40637); 65.5 cm (female); common length : 71.0 cm TL جنس نر / بدون خواص جنسي; (Ref. 593); common length :59.5 cm (female); بيشينه وزن گزارش شده: 15.2 kg (Ref. 40637); بيشينه سن گزارش شده: 5 سال ها (Ref. 36794)

توصيف مختصر كليدهاي شناسايي | ريخت شناسي | ريخت ستجي بوسيله انداره گيري

خارهاي باله پشتي (کل) : 0; شعاع نرم باله پشتي (کل) : 9 - 13; خارهاي باله مخرجي: 0; شعاع نرم باله مخرجي: 12 - 17; مهره ها: 61 - 69. Characterized by the presence of small black spots on the back and on the upper lobe of the caudal fin, and by the lack of dark pigment along the gum line of the lower jaw (Ref. 27547). The gill rakers are rough and widely spaced; the lateral line is nearly straight (Ref. 27547). The adipose fin is slender; the pelvic fins have an axillary extension (Ref. 27547). Fish in the sea are dark metallic blue or greenish on the back and upper sides, a brilliant silver color on middle and lower sides, and white below; small black spots are present on the back and upper sides and on the upper lobe of the caudal fin (Ref. 27547). During the spawning season fish turn dark to bright green on head and back, bright red on the sides, and often dark on the belly (Ref. 27547). Females are less brightly colored than males (Ref. 27547).

زيست شناسي     واژه نامه (بعنوان مثال epibenthic)

The fish occur in the ocean or in lakes; adults return to the rivers where they were born (Ref. 27547). The young fish emerge in springtime and they usually live in fresh water for 1-2 years (sometimes up to 4 years, Ref. 27547); later they migrate at night to freshwater lakes or to the sea (Ref. 1998). Epipelagic (Ref. 58426). The fish that stay more than two years in fresh water and become sexually ripe without ever going to sea, are called residuals; they never spawn (Ref. 27547). Young fish in lakes and rivers eat mainly insects; they stay almost entirely in deep parts of the river and soon become strongly territorial (Ref. 27547). Upon reaching the sea, the smolts remain close to the coast for a certain time, eating planktonic crustaceans (Ref. 27547). As they grow, they migrate farther out into the sea and hunt larger organisms (Ref. 27547) such as jellyfish, squids and fishes (Ref. 58426). They are hunted by various fishes, birds (mergansers, loons and kingfishers), mammals and lampreys (Ref. 1998). This kind is traded as fresh fish, dried or salted, smoked, canned, preserved and frozen (Ref. 9988). They are steamed, grilled, broiled, cooked in the microwave and baked (Ref. 9988).

Life cycle and mating behavior Maturities | تولید مثل | Spawnings | Egg(s) | Fecundities | توزاد ( لارو)

Adults migrate from the sea or lake, school at mouths of rivers, and move upstream when rains increase river flow (Ref. 1998). As a rule, the winter entries (December and January) occur in the southern part of the range, with appearance in fresh water becoming progressively earlier to the north (Ref. 30381, 30382, 30383). At the spawning area, the female finds a spot and digs a pitt. At this point she is aggressive toward other females. While digging, an attendant male courts her or is busy driving away other males. As soon as the pitt is completed, the female drops into it and is immediately followed by the male. The pair are side by side, they open their mouth, quiver and release egg and sperm (Ref. 27547). At this point, other males move in and release sperm into the nest (Ref. 1998). The female quickly moves to the upstream edge of the nest and starts digging a new pitt, covering the eggs. The whole process is repeated for several days until the female deposits all her eggs. The male then leaves and may seek another female. The spent female usually continues to dig, until she dies (Ref. 27547). Reproductive strategy: synchronous ovarian organization, determinate fecundity (Ref. 51846).

مآخذ اصلی Upload your references | مراجع | هماهنگ كننده | همكاران

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)

وضعيت در فهرست قرمز IUCN (Ref. 130435)


CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

خطر برای انسان ها

  Harmless




استفاده انسانی

ماهي گيري – شيلات: با ارزش تجاري بالا; آبزي پروري: تجاري; ماهي ها ي سرگرم كننده: بله
FAO(Aquaculture systems: production, نمايه گونه; ماهي گيري – شيلات: production, نمايه گونه; publication : search) | FishSource | Sea Around Us

اطلاعات بيشتر

Ecology
بوم شناسي
Home ranges
Population dynamics
Growths
Max. ages / sizes
Length-weight rel.
Length-length rel.
نوسانات طولی
Mass conversions
Recruitments
Abundances
Anatomy
Gill areas
مغزها
Otoliths
Genetics
ژنتيك
Electrophoreses
Heritabilities
Human related
Aquaculture systems
نمايه هاي آبزي پروري
نژادها
Ciguatera cases
Stamps, coins, misc.
Outreach
همكاران
References
مراجع

ابزارها

گزارش های ويژه

بارگيری XML

منابع اينترنتي

Estimates based on models

Preferred temperature (Ref. 115969): 1 - 8.9, mean 3.9 (based on 453 cells).
Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01047 (0.00482 - 0.02276), b=3.04 (2.87 - 3.21), in cm Total Length, based on LWR estimates for this Genus-body shape (Ref. 93245).
Trophic level (Ref. 69278):  4.2   ±0.70 se; based on food items.
جهندگی (Ref. 120179):  متوسط, كمينه زمان لازم براي دو برابر شدن جمعيت 4/1 – 4/4 سال (K=0.98(?); tm=2-4; Fec=1,400).
Prior r = 0.32, 95% CL = 0.21 - 0.48, Based on 2 full stock assessments.
Fishing Vulnerability (Ref. 59153):  Moderate to high vulnerability (52 of 100).
Climate Vulnerability (Ref. 125649):  High to very high vulnerability (72 of 100).
طبقه قيمت (Ref. 80766):   Medium.