Elasmobranchii (tubarões e raias) (sharks and rays) >
Rajiformes (Skates and rays) >
Arhynchobatidae (Softnose skates)
Etymology: Bathyraja: Greek, bathys = deep + Latin, raja, -ae = a ray (Raja sp) (Ref. 45335).
Environment: milieu / climate zone / depth range / distribution range
Ecologia
marinhas batidemersal; intervalo de profundidade 500 - 3000 m, usually 1000 - 2000 m. Deep-water; 19°S - 56°S, 72°W - 40°W
Southeast Pacific and Southwest Atlantic: Chile (Ref. 27540) and off the mouth of Río de la Plata, Argentina (Ref. 26282).
Tamanho / Peso / Idade
Maturity: Lm ? range ? - ? cm
Holotype taken from a depth of 1,000 m (Ref. 26282). Oviparous (Ref. 50449). Eggs have horn-like projections on the shell (Ref. 205). Depth range assumed from two records (1000 and 2000 m) (RF).
Life cycle and mating behavior
Maturities | Reprodução | Spawnings | Egg(s) | Fecundities | Larvas
Oviparous, paired eggs are laid. Embryos feed solely on yolk (Ref. 50449). Eggs have horn-like projections on the shell (Ref. 205).
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)
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
Preferred temperature (Ref.
123201): 1.8 - 3.8, mean 2.4 °C (based on 142 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00513 (0.00253 - 0.01042), b=3.12 (2.95 - 3.29), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
Nível Trófico (Ref.
69278): 4.0 ±0.7 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): High to very high vulnerability (66 of 100).
Nutrients (Ref.
124155): Calcium = 5.07 [1.04, 28.48] mg/100g; Iron = 0.262 [0.063, 0.885] mg/100g; Protein = 15.5 [12.9, 18.0] %; Omega3 = 0.531 [0.170, 2.131] g/100g; Selenium = 17.6 [4.9, 59.1] μg/100g; VitaminA = 10.7 [2.1, 56.9] μg/100g; Zinc = 0.333 [0.158, 0.649] mg/100g (wet weight);
