Environment: milieu / climate zone / depth range / distribution range
Ecologia
marinhas demersal. Tropical
Eastern Central Pacific: Bahía de La Paz, southern Baja California, Mexico. Possibly young of some other species (Ref. 35766).
Tamanho / Peso / Idade
Maturity: Lm ?  range ? - ? cm
Max length : 34.0 cm macho/indeterminado; (Ref. 6902)
Descrição breve
Chaves de identificação | Morfologia | Morfometria
Snout white. Mouth nearly straight. Rostral ridges confluent, very narrow, with a small and short groove at base and with spines. Entire upper surface rough (Ref. 6902).
Ovoviviparous (Ref. 50449). Size is based on original stuffed specimen, now in British Museum (Ref. 6902).
Life cycle and mating behavior
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).
Castro-Aguirre, J.L. and H. Espinosa Perez, 1996. Listados faunísticos de México. VII. Catálogo sistemático de las rayas y especies afines de México. (Chondrichthyes: Elasmobranchii: Rajiformes: Batoideiomorpha). Universidad Nacional Autonoma de Mexico, Mexico. 75 p. (Ref. 28767)
Categoria na Lista Vermelha da IUCN (Ref. 130435)
Ameaça para o homem
Harmless
Utilização humana
Ferramentas
Relatórios especiais
Descarregue XML
Fontes da internet
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00372 (0.00145 - 0.00950), b=3.09 (2.87 - 3.31), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Nível Trófico (Ref.
69278): 3.6 ±0.5 se; based on size and trophs of closest relatives
Resiliência (Ref.
120179): Baixo, tempo mínimo de duplicação da população 4,5 - 14 anos (Fec assumed to be <100).
Fishing Vulnerability (Ref.
59153): Very high vulnerability (90 of 100).