Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; freshwater; brackish; demersal; amphidromous (Ref. 40808); depth range 0 - 75 m (Ref. 57178), usually 50 - 60 m (Ref. 51483). Subtropical; 5°C - 22°C (Ref. 13614); 43°N - 9°N, 79°W - 74°W (Ref. 57273)
Western Central Atlantic: Massachusetts to Florida, throughout the Gulf of Mexico, to Panama.
Length at first maturity / Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 20.0 cm TL male/unsexed; (Ref. 7251); common length : 11.0 cm TL male/unsexed; (Ref. 12193); max. reported age: 7 years (Ref. 51483)
Adults inhabit coastal waters. They also enter fresh waters, going hundreds of miles upstream. Migrate downstream to spawn in spring (Ref. 36739). Larvae move upstream after hatching (Ref. 36739). Minimum depth reported taken from Ref. 57178.
Robins, C.R. and G.C. Ray, 1986. A field guide to Atlantic coast fishes of North America. Houghton Mifflin Company, Boston, U.S.A. 354 p. (Ref. 7251)
IUCN Red List Status (Ref. 130435: Version 2024-1)
Threat to humans
Harmless
Human uses
Fisheries: of no interest
Tools
Special reports
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Internet sources
Estimates based on models
Preferred temperature (Ref.
123201): 11.4 - 24.5, mean 17.2 °C (based on 60 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5010 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01479 (0.00841 - 0.02600), b=3.03 (2.88 - 3.18), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref.
93245).
Trophic level (Ref.
69278): 3.4 ±0.5 se; based on size and trophs of closest relatives
Generation time: 5.6 ( na - na) years. Estimated as median ln(3)/K based on 1
growth studies.
Resilience (Ref.
120179): Medium, minimum population doubling time 1.4 - 4.4 years (tm=1; tmax=7; K=0.21(?)).
Fishing Vulnerability (Ref.
59153): Moderate vulnerability (37 of 100).
Nutrients (Ref.
124155): Calcium = 110 [48, 247] mg/100g; Iron = 0.938 [0.463, 1.756] mg/100g; Protein = 18.2 [16.8, 19.5] %; Omega3 = 0.226 [0.110, 0.434] g/100g; Selenium = 19.6 [9.7, 42.5] μg/100g; VitaminA = 16 [5, 56] μg/100g; Zinc = 0.964 [0.630, 1.421] mg/100g (wet weight);