Miljö: miljö / Klimatzon / djupintervall / distributionsområde
Ekologi
marina; brackvatten bottenlevande; djupintervall 10 - ? m (Ref. 5217). Tropical; 13°N - 9°S
Western Atlantic: West Indies and the Atlantic coasts of Central and South America to southeastern Brazil.
Längd vid första mognad / Storlek / Vikt / Ålder
Könsmognad: Lm ?, range 24 - ? cm
Max length : 40.0 cm TL hane/ej könsbestämd; (Ref. 3791); 35.0 cm TL (female); common length : 25.0 cm TL hane/ej könsbestämd; (Ref. 5217)
Mainly found in brackish estuaries but also in marine and hyper-saline waters (Ref. 5217). During reproduction, they gather in small groups at the mouth of coastal rivers and creeks. Reproduction occurs in the early part of the year. Oviparous, eggs are pelagic and non-adhesive (Ref. 205). Eggs which are rich in yolk are spawned by the millions. Upon hatching, juveniles move up to the swamps and coastal rivers over long distances, to seek for food and to protect themselves against predators (Ref. 35237). Marketed fresh or salted (Ref. 5217). The roe is marketed salt-pickled and dried and considered a delicacy (Ref. 5217).
Livscykel och parningsbeteende
Könsmognad | Reproduktion | Lek | Ägg | Fekunditet | Larver
Spawning seems to take place in small groups in river mouths. Females lay millions of relatively large eggs rich in yolk.
Thomson, J.M., 1978. Mugilidae. In W. Fischer (ed.) FAO species identification sheets for fishery purposes. Western Central Atlantic (Fishing Area 31). Vol. 3. [pag. var.]. FAO, Rome. (Ref. 3791)
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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Uppskattningar baserade på modeller
Önskad temperatur (Ref.
123201): 26.7 - 28.1, mean 27.4 °C (based on 46 cells).
Index för fylogenetisk mångfald (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00977 (0.00600 - 0.01591), b=2.91 (2.78 - 3.04), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref.
93245).
Trofisk nivå (Ref.
69278): 2.0 ±0.1 se; based on diet studies.
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=0.67-1.0;).
Sårbarhet i fisket (Ref.
59153): Low vulnerability (24 of 100).
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Näringsämnen (Ref.
124155): Calcium = 482 [175, 1,568] mg/100g; Iron = 3.8 [0.7, 17.5] mg/100g; Protein = 19.2 [17.6, 20.7] %; Omega3 = 0.359 [0.158, 0.859] g/100g; Selenium = 150 [48, 491] μg/100g; VitaminA = 7.99 [2.21, 28.34] μg/100g; Zinc = 3.19 [1.47, 7.74] mg/100g (wet weight);