Elasmobranchii (tubarões e raias) (sharks and rays) >
Carcharhiniformes (Ground sharks) >
Carcharhinidae (Requiem sharks)
Etymology: Rhizoprionodon: rhiza (Gr.), root; prion (Gr.) saw; odon (Gr.), tooth, referring to teeth with serrated (saw-like) bases, or roots [replacement name for Rhizoprion Ogilby 1915, preoccupied by Rhizoprion Jourdan 1861 in mammals]. (See ETYFish); lalandii: In honor of naturalist and explorer Pierre Antoine Delalande (1787-1823), who collected type [authorship often attributed to Müller & Henle, who published Valenciennes’ description]. (See ETYFish).
Environment: milieu / climate zone / depth range / distribution range
Ecologia
marinhas demersal; intervalo de profundidade 3 - 70 m (Ref. 244). Tropical; 13°N - 35°S, 78°W - 31°W
Western Atlantic: Panama to southern Brazil and Uruguay (Ref. 58839).
Comprimento de primeira maturação / Tamanho / Peso / Idade
Maturity: Lm 61.8, range 58 - ? cm
Max length : 80.0 cm TL (female); common length : 55.0 cm TL macho/indeterminado; (Ref. 5217); peso máx. publicado: 0.00 g
Inhabits shallow coastal waters, on sandy and muddy bottoms, and not normally found in lagoons and estuaries (Ref. 244). Feeds on small bony fishes, including sardines and anchovies, also shrimp and squid (Ref. 244). Viviparous, with 1 to 4 young in a litter; size at birth 33 to 34 cm (Ref. 244). Its flesh is highly appreciated and is marketed dried salted.
Distinct pairing with embrace (Ref. 205). Viviparous, placental (Ref. 50449).
Compagno, L.J.V., 1999. Checklist of living elasmobranchs. p. 471-498. In W.C. Hamlett (ed.) Sharks, skates, and rays: the biology of elasmobranch fishes. Johns Hopkins University Press, Maryland. (Ref. 35766)
Status na Lista Vermelha da UICN (Ref. 130435)
Ameaça para os humanos
Harmless
Uso pelos humanos
Pescarias: espécies comerciais
Mais informação
ReferênciasAquaculturaPerfil para aquaculturaEstirpesGenéticaElectrophoresesHereditariedadeDoençasProcessamentoNutrientsConversão de massa
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Fontes da internet
Estimates based on models
Preferred temperature (Ref.
123201): 24.6 - 28, mean 27.2 °C (based on 104 cells).
Índice de diversidade filogenética (Ref.
82804): PD
50 = 0.5078 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00269 (0.00177 - 0.00409), b=3.08 (2.96 - 3.20), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref.
93245).
Nível Trófico (Ref.
69278): 4.3 ±0.65 se; based on food items.
Resiliência (Ref.
120179): Muito baixo(a), tempo mínimo de duplicação da população maior que 14 anos (Fec=1).
Fishing Vulnerability (Ref.
59153): Moderate to high vulnerability (52 of 100).
