Elasmobranchii (tubarões e raias) (sharks and rays) >
Rajiformes (Skates and rays) >
Rajidae (Skates)
Etymology: Orbiraja: Name from Latin word 'orbis' meaning circle, referring to the paired, ring-like pectoral-fin ocelli in all three nominal species.
Eponymy: Lieutenant Frederick Thomas Powell (1806–1859) of the Indian Navy was one of Robert Moresby’s officers on ‘HMS Palinurus’ (1829–1833) and on ‘HMS Benares’ surveying the Chagos Archipelago (1837–1838). [...] (Ref. 128868), visit book page.
More on author: Alcock.
Meio ambiente: milieu / Zona climática / intervalo de profundidade / faixa de distribuição
Ecologia
marinhas demersal; intervalo de profundidade 15 - 460 m (Ref. 114953). Tropical; 23°N - 5°N, 71°E - 99°E (Ref. 114953)
Northern Indian Ocean: Arabian Sea (India) to Bay of Bengal (Myanmar).
Tamanho / Peso / Idade
Maturidade: Lm ? range ? - 35 cm
Max length : 21.0 cm WD macho/indeterminado; (Ref. 26165); 22.0 cm WD (female)
Oviparous (Ref. 50449). Eggs have horn-like projections on the shell (Ref. 205); approximately 6 cm long (Ref. 114953). Utilized for its meat (Ref.58048).
Ciclo de vida ou comportamento de acasalamento
Maturidade | Reprodução | Desova | Ovos | Fecundidade | Larvas
Oviparous, paired eggs are laid. Embryos feed solely on yolk (Ref. 50449).
McEachran, J.D. and K.A. Dunn, 1998. Phylogenetic analysis of skates, a morphologically conservative clade of elasmobranchs (Chondrichthyes: Rajidae). Copeia 1998(2):271-290. (Ref. 27314)
Status na Lista Vermelha da UICN (Ref. 130435: Version 2025-2 (Global))
Ameaça para os humanos
Harmless
Uso pelos humanos
Ferramentas
Relatórios especiais
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Fontes da internet
Estimativas baseadas em modelos
Temperatura preferida (Ref.
123201): 15.4 - 17.7, mean 16.5 °C (based on 17 cells).
Índice de diversidade filogenética (Ref.
82804): PD
50 = 0.6250 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00302 (0.00141 - 0.00645), b=3.24 (3.07 - 3.41), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Nível Trófico (Ref.
69278): 3.7 ±0.6 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).
Vulnerabilidade da pesca (Ref.
59153): Moderate vulnerability (41 of 100).
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