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> Perciformes/Percoidei (Perchs) > Percidae (Perches) > Etheostomatinae
Etymology: Etheostoma: Greek, etheo = to strain + Greek, stoma = mouth; Rafinesque said "various mouths", but Jordan and Evermann suggest the name might have been intended as "Heterostoma (Ref. 45335).
More on author: Rafinesque.

Environment: milieu / climate zone / depth range / distribution range Ekologi

; sötvatten bentopelagisk; pH range: 7.0 - ? ; dH range: ? - 15. Temperate; 4°C - 18°C (Ref. 2059); 59°N - 32°N

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North America: St. Lawrence-Great Lakes, Hudson Bay, and Mississippi River basins from Hudson Bay to southern Mississippi in the USA, and from Quebec in Canada and from Virginia in the USA to Saskatchewan in Canada and Colorado in the USA; and on Atlantic and Gulf Slope drainages in the USA.

Size / Vikt / Age

Maturity: L_m ? range ? - ? cm
Max length : 7.2 cm TL hane/ej könsbestämd; (Ref. 5723); common length : 3.9 cm TL hane/ej könsbestämd; (Ref. 12193); rapporterad maxålder: 4 år (Ref. 12193)

Occur in sandy and muddy, sometimes rocky, pools of headwaters, creeks, and small to medium rivers; and in sandy shores of lakes (Ref. 5723, 10294); also found in streams (Ref. 10294). Adults feed on midge larvae, mayfly nymphs, caddis larvae, and microcrustaceans; young on entomostracans and tiny midge larvae (Ref. 10294). Eggs are found clustered on underside of stone and guarded by males (Ref. 7043).

Life cycle and mating behavior Könsmognad | Reproduktion | Lek | Ägg | Fecundity | Larver

Eggs are found clustered on underside of stone (Ref. 7043). Males guard the eggs (Ref. 7043).

Main reference Upload your references | referenser | Koordinator | Medarbetare

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 2024-2)

Least Concern (LC) ; Date assessed: 21 December 2011

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

FAO - Publication: search | FishSource |

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Trophic ecology
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Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00724 (0.00412 - 0.01274), b=3.16 (3.01 - 3.31), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref. 93245).

Trofisk nivå (Ref. 69278): 3.2 ±0.40 se; based on food items.

Generation time: 1.2 ( na - na) years. Estimated as median ln(3)/K based on 1 growth studies.

Resiliens (Ref. 120179): Mellan, lägsta populationsfördubblingstid 1,4-4,4 år (K=0.95; tmax=4; Fec=47-691).

Fishing Vulnerability (Ref. 59153): Low vulnerability (14 of 100).

Etheostoma nigrum Rafinesque, 1820