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Squaliformes (Sleeper and dogfish sharks) >
Squalidae (Dogfish sharks)
Etymology: Squalus: Genus name from Latin 'squalus' meaning shark (Ref. 6885, 27436); bassi: Named for Alan John Bass (Oceanographic Research Institute, Durban), for his valuable contributions to the taxonomy of elasmobranch fishes from southern Africa..
Issue
Species information for completion.
Environment: milieu / climate zone / depth range / distribution range
Sinh thái học
Biển, usually 159 - 591 m (Ref. 116246). Tropical
Southeastern Atlantic and western Indian Oceans: southwards along the Western Cape, South Africa and extending to Mozambique.
Bộ gần gũi / Khối lượng (Trọng lượng) / Age
Maturity: Lm ?  range ? - ? cm
Max length : 96.0 cm TL con đực/không giới tính; (Ref. 116246); 110.0 cm TL (female)
Minimum size at maturity of this species is approximately 73.0 cm for females and 65.0 cm for males. Females have between 4-9 pups per litter (size at birth is around 21.0-30.0 cm, with the smallest free-swimming neonates measuring 23.0-23.5 cm TL. Reported to feed mainly on bony fishes, cephalopods and crustaceans (Ref. 116246).
Life cycle and mating behavior
Maturities | Sự tái sinh sản | Spawnings | Egg(s) | Fecundities | Ấu trùng
Viana, S.T. d. F.L., M.R. de Carvalho and D.A. Ebert, 2017. Squalus bassi sp. nov., a new long-snouted spurdog (Chondrichthyes: Squaliformes: Squalidae) from the Agulhas Bank. J. Fish Biol. 91(4):1178-1207. (Ref. 116246)
IUCN Red List Status (Ref. 130435)
Threat to humans
Harmless
Human uses
Các công cụ
Special reports
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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=0.00339 (0.00162 - 0.00707), b=3.10 (2.93 - 3.27), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
Mức dinh dưỡng (Ref.
69278): 4.4 ±0.4 se; based on size and trophs of closest relatives
Thích nghi nhanh (Ref.
120179): Rất thấp, thời gian nhân đôi của chủng quần tối thiểu là hơn 14 năm (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): High to very high vulnerability (66 of 100).