Miljö: miljö / Klimatzon / djupintervall / distributionsområde
Ekologi
marina; brackvatten revassocierade; djupintervall 27 - 95 m (Ref. 7251). Tropical; - 6°N
Western Atlantic: northeastern Florida (USA), Gulf of Mexico, and the Antilles to Guyana.
Längd vid första mognad / Storlek / Vikt / Ålder
Könsmognad: Lm 9.6, range 6 - ? cm
Max length : 20.0 cm TL hane/ej könsbestämd; (Ref. 7251); common length : 15.0 cm TL hane/ej könsbestämd; (Ref. 5217)
Found between the shore and 100 m depth, on sand or mud bottoms rich in organic matter. Feed mainly on shrimps (Penaeidae), amphipods, crustacean larvae and annelids. The whole life cycle develops on the continental shelf. During reproduction in May and September, adults gather in shallow waters of the estuaries and along the coast. Sexual activity takes place during the rainy season which corresponds to quite a large influx of organic matter, thereby ensuring food for the breeding fish. Sexual dimorphism affects the interorbital width and pectoral fin length of the hidden side. Juveniles remain planktonic for a long time with a high growth rate of >5% per day (Ref. 35237).
Livscykel och parningsbeteende
Könsmognad | Reproduktion | Lek | Ägg | Fekunditet | Larver
Distinct pairing (Ref. 205).
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)
Status på IUCN:s rödlista (Ref. 130435: Version 2025-2 (Global))
Hot mot människor
Harmless
Mänskliga användningsområden
Fiskeri: mindre kommeriell
Verktyg
Särskilda rapporter
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Internet-källor
Uppskattningar baserade på modeller
Önskad temperatur (Ref.
123201): 21.2 - 27.4, mean 24.8 °C (based on 104 cells).
Index för fylogenetisk mångfald (Ref.
82804): PD
50 = 0.5039 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00692 (0.00388 - 0.01233), b=3.10 (2.95 - 3.25), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref.
93245).
Trofisk nivå (Ref.
69278): 3.3 ±0.44 se; based on food items.
Generation time: 1.6 ( na - na) years. Estimated as median ln(3)/K based on 1
growth studies.
Resiliens (Ref.
120179): Hög, lägsta populationsfördubblingstid mindre än 15 månader (K=0.7).
Sårbarhet i fisket (Ref.
59153): Low vulnerability (10 of 100).
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Näringsämnen (Ref.
124155): Calcium = 80.6 [31.0, 168.8] mg/100g; Iron = 0.655 [0.300, 1.155] mg/100g; Protein = 17.2 [15.1, 19.5] %; Omega3 = 0.098 [0.050, 0.191] g/100g; Selenium = 35.4 [17.1, 76.4] μg/100g; VitaminA = 53.4 [12.4, 241.2] μg/100g; Zinc = 1.39 [0.90, 2.04] mg/100g (wet weight); based on
nutrient studies.
