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Salmoniformes (Salmons) >
Salmonidae (Salmonids) > Coregoninae
Etymology: Prosopium: Greek, prosopon = face (Ref. 45335); cylindraceum: cylindraceum meaning like a cylinder (Ref. 1998).
Environment: milieu / climate zone / depth range / distribution range
বাস্তুসংস্থান
; স্বাদু পানি; ঈষৎ লোনা সমুদতলে ভাসমান বেনথোপেলাজিক; পোটামোড্রোমাস (Ref. 51243); গভীরতার পরিসীমা 4 - 72 m (Ref. 1998), usually ? - 37 m (Ref. 1998). Temperate; 2°C - 18°C (Ref. 1998); 72°N - 41°N, 103°E - 56°W (Ref. 86798)
North America: Arctic and Pacific drainages from western Hudson Bay in Canada to Alaska and northern British Columbia, Canada; Arctic and Atlantic drainages from Quebec and Ontario in Canada to Connecticut in USA; St. Lawrence-Great Lakes basin in Canada-USA (except Lake Erie). Northern Asia: widely distributed in Siberian rivers (Ref. 26334).
Length at first maturity / আকৃতি / ওজন / Age
Maturity: Lm 30.0 range ? - ? cm
Max length : 59.0 cm TL পুরুষ/ লিঙ্গ অনিধর্ারিত ; (Ref. 40637); common length : 28.6 cm TL পুরুষ/ লিঙ্গ অনিধর্ারিত ; (Ref. 12193); সবের্াচ্চ প্রকাশিত ওজন : 2.7 kg (Ref. 4699); সর্বোচ্চ উলি্ল্লখিত বয়স : 16 বৎসর (Ref. 28860)
পৃষ্ঠীয় কাঁটা (মোট ) : 0; পৃষ্ঠীয় নরম পাখনা দন্ড (মোট ) : 11 - 15; পায়ূ কাঁটা : 0; পায়ূর নরম পাখনা্তুন্ড: 10 - 13. Body slender, elongate, almost cylindrical in cross section, posteriorly somewhat compressed laterally, greatest depth in front of the dorsal fin. Head relatively short; eye moderate, its diameter less than snout length; snout pointed, "pinched" or compressed laterally, rounded in lateral view, a single flap of skin present between the nostrils; mouth small, ventral in position, overhung by snout; maxillaries extending posteriorly almost to anterior margin or eye in adults. This species has more color than most coregonids. Overall coloration of adults almost silvery, silvery white below. Scales specially on back, with well-defined, dark pigmented borders, making them conspicuous. Pectoral fins are amber in color, slight amber tint also to pelvic and anal fins. Pectoral fins take on an orange tint during spawning, the pelvic and anal fins also to a lesser extent. the adipose fin is usually brown spotted, particularly in specimens from central and eastern Canada. Two or more longitudinal rows of black spots are present on the sides of young specimen.
Inhabits shallow areas of lakes and clear streams and rarely enters brackish water (Ref. 5723, 86798). Also in rivers with swift current and stony bottom. Migration is limited to movements associated with spawning (Ref. 27547). Epipelagic (Ref. 58426). Feeds on benthic invertebrates and occasionally on fishes (Ref. 1998) and fish eggs (Ref. 593). One specimen taken from a depth of 218.9 m in eastern Lake Superior, off Grand Marais, Michigan (Ref. 1998).
There are inshore and upstream movements (Ref. 28863) that may be related to spawning (Ref. 27547). Swims in pairs during spawning (Ref. 28858). Also Ref. 28803.
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)
Threat to humans
Harmless
Human uses
মৎস্য: গৌণ বাণিজ্যিক ; শিকারযোগ্য মাছ: হঁ্যা
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ইন্টারনেট সুত্র
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5156 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00525 (0.00324 - 0.00851), b=3.23 (3.09 - 3.37), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
ট্রফিক পর্যায়ে (Ref.
69278): 3.3 ±0.41 se; based on food items.
Generation time: 5.4 (3.4 - 9.4) years. Estimated as median ln(3)/K based on 11
growth studies.
স্থিতিস্থাপক (Ref.
120179): নিম্ন/ , সর্বনিম্ন প্রজন দ্বিগুনের সময় ৪.৪-১৪ বৎসর (tm=5-7; tmax=16; Fec=1,000).
Fishing Vulnerability (Ref.
59153): Moderate to high vulnerability (51 of 100).
