Elasmobranquios (tiburones y rayas) (sharks and rays) >
Rajiformes (Skates and rays) >
Rajidae (Skates)
Etymology: More on author: Richardson.
Environment: milieu / climate zone / depth range / distribution range
Ecología
marino demersal; rango de profundidad 0 - 170 m (Ref. 6871), usually 0 - 40 m (Ref. 6871). Temperate; 37°S - 45°S, 140°E - 150°E (Ref. 114953)
Eastern Indian Ocean to southwest Pacific: endemic to Australia.
Tamaño / Peso / Age
Maturity: Lm ? range ? - ? cm
Max length : 55.0 cm TL macho / no sexado; (Ref. 114953)
Occur on soft bottoms of the continental shelf (Ref. 7300, 75154). Feed on benthic fishes and crustaceans (Ref. 6871). Oviparous. Distinct pairing with embrace. Young may tend to follow large objects, such as their mother (Ref. 205). Eggs are oblong capsules with stiff pointed horns at the corners deposited in sandy or muddy flats (Ref. 205). Egg capsules are 4.4-6.3 cm long and 3.2-3.8 wide (Ref. 41308). Males reaches maturity at ca. 39 cm TL, females at ca. 42 cm TL; young hatch at ca. 10 cm TL (Ref. 114953).
Life cycle and mating behavior
Maturities | Reproducción | Spawnings | Egg(s) | Fecundities | Larva
Oviparous, paired eggs are laid. Embryos feed solely on yolk (Ref. 50449). Distinct pairing with embrace. Young may tend to follow large objects, such as their mother (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)
IUCN Red List Status (Ref. 130435)
Threat to humans
Harmless
Human uses
Herramientas
Special reports
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Fuentes de Internet
Estimates based on models
Preferred temperature (Ref.
123201): 13.3 - 16.5, mean 15.2 °C (based on 70 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5010 [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).
Nivel trófico (Ref.
69278): 4.0 ±0.67 se; based on food items.
Resiliencia (Ref.
120179): Bajo, población duplicada en un tiempo mínimo de 4.5-14 años (Fec assumed to be <100).
Fishing Vulnerability (Ref.
59153): Moderate vulnerability (42 of 100).
Nutrients (Ref.
124155): Calcium = 8.5 [1.2, 148.2] mg/100g; Iron = 0.276 [0.026, 3.171] mg/100g; Protein = 16.1 [14.1, 18.1] %; Omega3 = 0.774 [0.325, 1.948] g/100g; Selenium = 10.2 [2.1, 54.9] μg/100g; VitaminA = 7.53 [0.57, 88.77] μg/100g; Zinc = 0.376 [0.026, 4.101] mg/100g (wet weight);
