Elasmobranchii (sharks and rays) > Squaliformes
(Sleeper and dogfish sharks) > Squalidae
Etymology: Squalus: Genus name from Latin 'squalus' meaning shark (Ref. 6885, 27436). More on author: Tanaka.
Environment: milieu / climate zone / depth range / distribution range
Marine; demersal; depth range - 130 m (Ref. 41299), usually - m (Ref. ). Subtropical; 0°C -
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. 124695)
Threat to humans
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00339 (0.00158 - 0.00727), b=3.09 (2.91 - 3.27), in cm total length, based on LWR estimates for this Genus-body shape (Ref. 93245
Trophic level (Ref. 69278
): 4.2 ±0.3 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.).
Vulnerability (Ref. 59153
): High vulnerability (61 of 100) .