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Cypriniformes (Carps) >
Catostomidae (Suckers) > Catostominae
Etymology: Chasmistes: Greek, chanos, -eos, ous, and chasma, -atos = abyss, mouth opened, inmensity (Ref. 45335).
More on author: Cope.
Environment: milieu / climate zone / depth range / distribution range
生態学
; 新鮮な水 底生の; potamodromous (Ref. 51243). Temperate; 41°N - 40°N
North America: Pyramid and Winnemucca lakes in Nevada, USA.
サイズ / 重さ / 年齢
Maturity: Lm ? range ? - ? cm
Max length : 67.0 cm TL オス/雌雄の選別がない; (Ref. 5723); 最大公表体重: 2.7 kg (Ref. 40637); 最大記録サイズ: 41 年 (Ref. 47054)
Occurs in deep water. Spawns only around margin of Pyramid Lake in Nevada, USA but formerly made spectacular spawning runs up Truckee River in Nevada, USA. Populations were subject to intensive fishing in the 19th and early 20th century; habitats have been greatly altered by water development projects; species is now endangered (Ref. 47054).
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 幼生
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)
IUCNのレッドリストの状況は (Ref. 130435)
絶滅危惧 (EN) (B1ac(ii,iv)+2ac(ii,iv)); Date assessed: 02 November 2011
Human uses
水産業: 少数商業の
用具
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5312 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00501 (0.00202 - 0.01242), b=3.09 (2.87 - 3.31), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
栄養段階 (Ref.
69278): 3.1 ±0.4 se; based on size and trophs of closest relatives
回復力 (Ref.
120179): 非常に低い, １４年以上の倍増期間の最小個体群 (tm=14-17; Fec=30,000).
Fishing Vulnerability (Ref.
59153): Moderate to high vulnerability (47 of 100).
