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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 / εύρος βάθους / distribution range
Οικολογία
; Γλυκού νερού βενθικό(ς); ποταμόδρομος (Ref. 51243). Temperate; 41°N - 40°N
North America: Pyramid and Winnemucca lakes in Nevada, USA.
Μέγεθος / Βάρος / Age
Γεννητική Ωρίμανση: Lm ?  range ? - ? cm
Max length : 67.0 cm TL αρσενικό/απροσδιόριστο; (Ref. 5723); μεγ. δημοσιευμένο βάρος: 2.7 kg (Ref. 40637); μεγ. αναφερόμενη ηλικία: 41 έτη (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).
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 Red List Status (Ref. 130435: Version 2025-1)
Threat to humans
Harmless
Human uses
αλιεία: περιορισμένης εμπορικότητας; αλιεία αναψυχής: ναί
Εργαλεία
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Διαδικτυακές πηγές
Estimates based on models
Phylogenetic diversity index (Αναφ.
82804): PD
50 = 0.5312 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00389 (0.00180 - 0.00842), b=3.12 (2.94 - 3.30), in cm total length, based on all LWR estimates for this body shape (Ref.
93245).
Τροφικό Επίπεδο (Αναφ.
69278): 3.1 ±0.4 se; based on size and trophs of closest relatives
Ελαστικότητα (Αναφ.
120179): Πολύ χαμηλό, ελάχιστος χρόνος για διπλασιασμό πληθυσμού > 14 έτη (tm=14-17; Fec=30,000).
Fishing Vulnerability (Ref.
59153): Moderate to high vulnerability (47 of 100).
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