Environment: milieu / climate zone / djupintervall / distribution range
Ekologi
; sötvatten bottenlevande. Temperate; ? - 32°C (Ref. 12741); 50°N - 26°N
North America: Lake Michigan drainage and Mississippi River basin from Pennsylvania and Michigan to Montana, USA and south to the Gulf of Mexico; Gulf Slope drainages from Mobile Bay in Alabama to Rio Grande in Texas and New Mexico, USA. Also in Mexico.
Size / Vikt / Age
Könsmognad: Lm ? range ? - ? cm
Max length : 112 cm TL hane/ej könsbestämd; (Ref. 40637); common length : 58.5 cm TL hane/ej könsbestämd; (Ref. 12193); publicerad maxvikt: 37.3 kg (Ref. 40637); rapporterad maxålder: 15 år (Ref. 12193)
Short description
Bestämningsnycklar | Morfologi | Morfometri
Inhabits pools, backwaters and main channels of small to large rivers. Also occurs in lakes and impoundments. Feeds on shellfish and algae, by grinding with the bony plates in its throat (Ref. 9988). Appears to be a good candidate for aquaculture. Marketed fresh and eaten pan-fried, broiled and baked (Ref. 9988).
Life cycle and mating behavior
Könsmognad | Reproduktion | Lek | Ägg | Fecundity | Larver
Assuming same reproductive mode as in Chasmistes.
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
Fiskeri: kommersiell; sportfisk: ja
Verktyg
Special reports
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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=0.01148 (0.00847 - 0.01557), b=3.00 (2.91 - 3.09), in cm total length, based on LWR estimates for this species (Ref.
93245).
Trofisk nivå (Ref.
69278): 3.0 ±0.39 se; based on food items.
Resiliens (Ref.
120179): Låg, lägsta populationsfördubblingstid 4,5-14 år (tmax=15).
Fishing Vulnerability (Ref.
59153): High to very high vulnerability (67 of 100).
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Nutrients (Ref.
124155): Calcium = 29.4 [14.7, 51.4] mg/100g; Iron = 0.449 [0.257, 0.776] mg/100g; Protein = 17.5 [15.3, 19.7] %; Omega3 = 1.16 [0.45, 2.76] g/100g; Selenium = 24.1 [9.8, 54.5] μg/100g; VitaminA = 16.9 [5.1, 51.5] μg/100g; Zinc = 0.709 [0.486, 1.060] mg/100g (wet weight);
