Environment: milieu / climate zone / depth range / distribution range
Ecologia
marinhas associadas(os) a recifes. Tropical; 26°N - 3°S, 113°W - 76°W (Ref. 114953)
Eastern Central Pacfic: Baja California (Mexico) to Ecuador; including the Galapagos Is.
Comprimento de primeira maturação / Tamanho / Peso / Idade
Maturity: Lm 110.0 range ? - ? cm
Max length : 260 cm TL macho/indeterminado; (Ref. 9254)
Inhabit rocky and coral reefs (Ref. 12951); on soft and sandy bottoms. Feeds mainly on mantis shrimps and fishes (Ref. 114953). Ovoviviparous (Ref. 50449). Litters of 1-5 pups; gestation period 10-11 months (Ref. 114953); Caught rarely by the gillnet fisheries operating in shelf waters. Utilized for its meat (Ref.58048).
Ciclo de vida ou comportamento de acasalamento
Maturities | Reprodução | Spawnings | Egg(s) | Fecundities | Larvas
Exhibit ovoviparity (aplacental viviparity), with embryos feeding initially on yolk, then receiving additional nourishment from the mother by indirect absorption of uterine fluid enriched with mucus, fat or protein through specialised structures (Ref. 50449). Distinct pairing with embrace (Ref. 205). Brood consists of 1-3 neonates and grow to about 40 cm DW in spring-summer (Ref. 38396).
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)
Uso pelos humanos
Pescarias: pouco comercial
Ferramentas
Relatórios especiais
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Fontes da internet
Estimates based on models
Preferred temperature (Ref.
123201): 23.1 - 28.5, mean 27 °C (based on 40 cells).
Índice de diversidade filogenética (Ref.
82804): PD
50 = 0.5039 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00646 (0.00265 - 0.01571), b=3.06 (2.86 - 3.26), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Nível Trófico (Ref.
69278): 3.5 ±0.37 se; based on food items.
Resiliência (Ref.
120179): Muito baixo(a), tempo mínimo de duplicação da população maior que 14 anos (Fec=1-3).
Fishing Vulnerability (Ref.
59153): Very high vulnerability (90 of 100).
Nutrients (Ref.
124155): Calcium = 4.25 [0.50, 62.97] mg/100g; Iron = 0.352 [0.028, 3.714] mg/100g; Protein = 22.4 [20.0, 24.7] %; Omega3 = 0.0681 [, ] g/100g; Selenium = 41.8 [8.1, 218.8] μg/100g; VitaminA = 14.9 [1.2, 155.3] μg/100g; Zinc = 0.592 [0.036, 6.796] mg/100g (wet weight);
