Elasmobranchii (sharks and rays) >
Squaliformes (Sleeper and dogfish sharks) >
Squalidae (Dogfish sharks)
Etymology: Squalus: Genus name from Latin 'squalus' meaning shark (Ref. 6885, 27436).
More on author: Tanaka.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; pelagic-neritic; depth range ? - 130 m (Ref. 41299). Subtropical
Western Pacific: southern Japan (Ref. 41299) to the South China Sea.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 60.0 cm TL male/unsexed; (Ref. 41299)
Known from the continental shelves, sometimes at depths greater than 130 m (Ref. 57879). Ovoviviparous (Ref. 559).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Distinct pairing with embrace (Ref. 205).
Randall, J.E. and K.K.P. Lim (eds.), 2000. A checklist of the fishes of the South China Sea. Raffles Bull. Zool. Suppl. (8):569-667. (Ref. 36648)
IUCN Red List Status (Ref. 130435: Version 2025-2 (Global))
Threat to humans
Harmless
Human uses
Fisheries: of potential interest
Tools
Special reports
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Internet sources
Estimates based on models
Phylogenetic diversity index (Ref. 82804) |
PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.00355 (0.00168 - 0.00751), b=3.09 (2.92 - 3.26), in cm total length, based on LWR estimates for this Genus-body shape (Ref. 93245). |
Trophic level (Ref. 69278) |
4.0 ±0.4 se; based on size and trophs of closest relatives |
Resilience (Ref. 120179) |
Low, minimum population doubling time 4.5 - 14 years (Preliminary K or Fecundity.). |
Fishing Vulnerability (Ref. 59153) |
High vulnerability (56 of 100). 🛈 |