>
Salmoniformes (Salmons) >
Salmonidae (Salmonids) > Coregoninae
Etymology: Prosopium: Greek, prosopon = face (Ref. 45335); coulterii: Named after Dr. J.M. Coulter, a distinguished botanist.
Eponymy: Dr John Merle Coulter (1851–1928) was an American botanist. [...] (Ref. 128868), visit book page.
More on authors: Eigenmann & Eigenmann.
Environment: milieu / climate zone / depth range / distribution range
Ekologi
; air tawar bentopelagis; kisaran kedalaman 18 - 168 m (Ref. 27547), usually 55 - 70 m (Ref. 1998). Temperate; 59°N - 47°N
North America: three disjunct areas: Lake Superior in Ontario, Canada and Michigan, USA; Yukon River drainage in Yukon, Canada to Columbia River drainage in western Montana and Washington, USA; and Chignik, Naknek and Wood River drainages in southwest Alaska. Europe: Russia (Ref. 26334).
Size / Weight / umur
Maturity: Lm ? range ? - ? cm
Max length : 28.0 cm TL jantan/; (Ref. 5723); common length : 11.5 cm TL jantan/; (Ref. 12193); Umur maksimum dilaporkan: 9 Tahun (Ref. 10320)
Duri punggung (Keseluruhan (total)) : 0; duri punggung lunak (Keseluruhan (total)) : 10 - 13; Duri dubur: 0; Sirip dubur lunak: 10 - 14; vertebrata, bertulang belakang: 49 - 55. Body elongate, almost cylindrical. Head elongate, its length slightly greater than body depth; eye relatively large, its diameter greater than snout length; snout bluntly rounded, overhanging mouth, not obviously pointed, a single flap of skin present between nostrils. Nuptial tubercles developed in both males and females, but more conspicuous in males, and occur on top of head, on scales on back and sides, and on paired fins. Body is brownish above, silvery on sides and white below. Dorsal, caudal, and pectoral fins usually clear, anal and pelvic whitish and immaculate, a faint dark spot sometimes present on base of caudal fin. A series of 12 - 14 similar spots present along the midline of the back, and 7 - 14 dark, round or oval parr marks with diffuse borders present along the lateral line of young and sub adults, although some Alaskan forms retain parr marks even on largest fish.
Inhabits lakes and rivers of mountainous areas (Ref. 1998). Feeds mainly on crustaceans and aquatic insect larvae (Ref. 1998). Minimum depth reported from Ref. 1998.
Moves to spawning grounds in the early winter and presumably back into deeper water after spawning. Spawns at night, presumably the eggs are broadcast, settling into interstices in the gravel. Hatching occurs the following spring (Ref. 27547).
Page, L.M. and B.M. Burr, 1991. A field guide to freshwater fishes of North America north of Mexico. Houghton Mifflin Company, Boston. 432 p. (Ref. 5723)
Status IUCN Red List (Ref. 130435: Version 2024-1)
ancaman kepada manusia
Harmless
penggunaan manusia
Perikanan: tidak ada kepentingan; Ikan buruan: ya
Alat, peralatan
laporan khas
muat turun XML
Sumber internet
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=0.00457 (0.00240 - 0.00872), b=3.14 (2.96 - 3.32), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
Trophic level (Ref.
69278): 3.1 ±0.35 se; based on food items.
Generation time: 2.0 ( na - na) years. Estimated as median ln(3)/K based on 1
growth studies.
Daya lenting (Ref.
120179): sedang, Waktu penggandaan populasi minimum 1.4 - 4.4 tahun (tm=1-2; tmax=9; Fec=103).
Fishing Vulnerability (Ref.
59153): Low vulnerability (25 of 100).
