Environment: milieu / climate zone / distribuzione batimetrica / distribution range
Ecologia
; acqua dolce; salmastro benthopelagico; distribuzione batimetrica 0 - 56 m (Ref. 11004), usually ? - 9 m (Ref. 1998). Subtropical; 0°C - 30°C (Ref. 35682); 66°N - 30°N, 124°W - 59°W (Ref. 86798)
North America: Atlantic, Arctic, Great Lakes, and Mississippi River basins from Nova Scotia to Mackenzie River drainage, Northwest Territories in Canada, and south to Ohio, Illinois and Nebraska in the USA; south in Atlantic drainages to Savannah River in Georgia, USA.
Length at first maturity / Size / Peso / Age
Maturità: Lm 19.2 range ? - ? cm
Max length : 50.0 cm TL maschio/sesso non determinato; (Ref. 9988); common length : 19.1 cm TL maschio/sesso non determinato; (Ref. 12193); peso massimo pubblicato: 1.9 kg (Ref. 40637); Età massima riportata: 11 anni (Ref. 12193)
Inhabits lakes, ponds, pools of creeks, and rivers. Also found in brackish water and in salt lakes. Most commonly found in clear water near vegetation; tends to shoal near the shore during spring (Ref. 9988, 10294). Feeds on immature insects, larger invertebrates, fishes and fish eggs during the day. Preyed upon by fishes and birds (Ref. 1998). Spawns between February and July in the northern hemisphere and between August and October in the southern hemisphere (Ref. 10999). Neither anterolateral glandular groove nor venom gland is present (Ref. 57406). Marketed fresh or frozen; eaten pan-fried, broiled or baked (Ref. 9988).
Nonobligatory plant spawner.
Page, L.M. and B.M. Burr, 2011. A field guide to freshwater fishes of North America north of Mexico. Boston : Houghton Mifflin Harcourt, 663p. (Ref. 86798)
IUCN Red List Status (Ref. 130435: Version 2025-1)
Human uses
Pesca: commerciale; Pesce da pesca sportiva: si; Acquario: Acquari pubblici
Strumenti
Special reports
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Estimates based on models
Phylogenetic diversity index (Fonte Biblio.
82804): PD
50 = 0.6250 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01175 (0.00920 - 0.01500), b=3.05 (2.98 - 3.12), in cm total length, based on LWR estimates for this species (Ref.
93245).
Trophic level (Fonte Biblio.
69278): 3.7 ±0.2 se; based on diet studies.
Generation time: 3.7 (3.3 - 4.8) years. Estimated as median ln(3)/K based on 43
growth studies.
Resilienza (Fonte Biblio.
120179): Medio, tempo minimo di raddoppiamento della popolazione 1.4 - 4.4 anni (K=0.17-0.19; tmax=11).
Fishing Vulnerability (Ref.
59153): Moderate to high vulnerability (48 of 100).
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Nutrients (Ref.
124155): Calcium = 30.3 [13.5, 69.8] mg/100g; Iron = 0.379 [0.205, 0.696] mg/100g; Protein = 17.5 [16.4, 18.6] %; Omega3 = 0.157 [0.070, 0.345] g/100g; Selenium = 18.5 [6.2, 51.4] μg/100g; VitaminA = 26.1 [11.2, 61.2] μg/100g; Zinc = 0.785 [0.530, 1.181] mg/100g (wet weight); based on
nutrient studies.
