Miljö: miljö / Klimatzon / djupintervall / distributionsområde
Ekologi
; sötvatten bottenlevande; pH range: 7.0 - 7.5; dH range: 15 - ?. Temperate; 4°C - 22°C (Ref. 2060); 47°N - 28°N
North America: Eastern Rivers of USA and Canada. At least one country reports adverse ecological impact after introduction.
Storlek / Vikt / Ålder
Könsmognad: Lm ?  range ? - ? cm
Max length : 30.5 cm TL hane/ej könsbestämd; (Ref. 40637); common length : 10.8 cm TL hane/ej könsbestämd; (Ref. 12193); publicerad maxvikt: 790.00 g (Ref. 4699)
Rocky and sandy pools of creeks and small to medium rivers; rocky and vegetated lake margins (Ref. 5723). Adults feed on terrestrial insects and both immature and adult aquatic insects, particularly larger varieties such as mayflies and dragonflies. Juveniles consume benthic organisms such as dipteran larvae (Ref. 10294).
Livscykel och parningsbeteende
Könsmognad | Reproduktion | Lek | Ägg | Fekunditet | Larver
The female lays around 1000 eggs in the depression created by the male who later takes care of eggs and young alone (Ref. 26281).
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 på IUCN:s rödlista (Ref. 130435: Version 2025-2 (Global))
Hot mot människor
Potential pest (Ref. 1986)
Mänskliga användningsområden
Fiskeri: kommersiell; sportfisk: ja; Akvarium: Kommersiell
Verktyg
Särskilda rapporter
Ladda ner XML
Internet-källor
Uppskattningar baserade på modeller
Index för fylogenetisk mångfald (Ref. 82804) |
PD50 = 0.5001 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.00832 (0.00520 - 0.01330), b=2.97 (2.84 - 3.10), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref. 93245). |
Trofisk nivå (Ref. 69278) |
3.2 ±0.0 se; based on diet studies. |
Resiliens (Ref. 120179) |
Mellan, lägsta populationsfördubblingstid 1,4-4,4 år (Fec=1000). |
Sårbarhet i fisket (Ref. 59153) |
Moderate vulnerability (35 of 100). 🛈 |
Priskategori (Ref. 80766) |
Unknown.
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