Elasmobranchii (tubarões e raias) (sharks and rays) >
Carcharhiniformes (Ground sharks) >
Proscylliidae (Finback catsharks)
Etymology: Eridacnis: Etymology not explained, possibly eri-, Greek intensive particle (i.e., very), and dakno (Gr.), bite, referring to “wide, angular” mouth of E. radcliffei. (See ETYFish); sinuans: Latin for sinuous, probably referring to its slender body and/or long, ribbon-like caudal fin. (See ETYFish).
More on author: Smith.
Environment: milieu / climate zone / depth range / distribution range
Ecologia
marinhas batidemersal; intervalo de profundidade 180 - 480 m (Ref. 244). Deep-water; 4°S - 30°S
Western Indian Ocean: confined to South Africa, Mozambique and Tanzania.
Comprimento de primeira maturação / Tamanho / Peso / Idade
Maturity: Lm ?, range 37 - ? cm
Max length : 37.0 cm TL (female)
Descrição suscinta
Chaves de identificação | Morfologia | Morfometria
Espinhos dorsais (total) : 0; Espinhos anais: 0. A slender, dwarf catshark with 2 equal-sized dorsal fins and a long tape-like caudal fin (Ref. 5578). Grey-brown in color (Ref. 5578).
Found on the upper continental slope and outer shelf (Ref. 244). Feeds on small bony fishes, crustaceans and cephalopods (Ref. 244). Ovoviviparous (Ref. 50449), with 2 young in a litter (Ref. 244). Geographic or bathymetric segregation of populations by sex probably occurs as most specimens taken off Natal were male (Ref. 244).
Ovoviviparous, embryos feed solely on yolk (Ref. 50449). Bears two young (Ref. 5578). Size at birth between 15 and 17 cm (Ref. 244).
Compagno, L.J.V., 1984. FAO Species Catalogue. Vol. 4. Sharks of the world. An annotated and illustrated catalogue of shark species known to date. Part 2 - Carcharhiniformes. FAO Fish. Synop. 125(4/2):251-655. Rome: FAO. (Ref. 244)
Status na Lista Vermelha da UICN (Ref. 130435)
Uso pelos humanos
Pescarias: sem interesse
Ferramentas
Relatórios especiais
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Fontes da internet
Estimates based on models
Preferred temperature (Ref.
123201): 12.8 - 18.4, mean 15.3 °C (based on 18 cells).
Índice de diversidade filogenética (Ref.
82804): PD
50 = 0.6328 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00389 (0.00180 - 0.00842), b=3.12 (2.94 - 3.30), in cm total length, based on all LWR estimates for this body shape (Ref.
93245).
Nível Trófico (Ref.
69278): 4.2 ±0.58 se; based on food items.
Resiliência (Ref.
120179): Muito baixo(a), tempo mínimo de duplicação da população maior que 14 anos (Fec=2).
Fishing Vulnerability (Ref.
59153): Low to moderate vulnerability (27 of 100).
