Elasmobranchii (sharks and rays) >
Squatiniformes (Angel sharks) >
Squatinidae (Angel sharks)
Etymology: Squatina: Latin, squatina, -ae = a kind of shark (Ref. 45335).
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; demersal. Subtropical; 28°N - 22°N, 118°E - 122°E (Ref. 54912)
Northwest Pacific: Taiwan Straits.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 63.0 cm TL male/unsexed; (Ref. 247)
Known only from two specimens. Ovoviviparous (Ref. 50449). Other details of habitat and biology unknown.
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Ovoviviparous, embryos feed solely on yolk (Ref. 50449).
Compagno, L.J.V., 1984. FAO Species Catalogue. Vol. 4. Sharks of the world. An annotated and illustrated catalogue of shark species known to date. Part 1 - Hexanchiformes to Lamniformes. FAO Fish. Synop. 125(4/1):1-249. Rome, FAO. (Ref. 247)
IUCN Red List Status (Ref. 120744)
CITES (Ref. 118484)
Not Evaluated
Threat to humans
Traumatogenic
Human uses
Fisheries: of no interest
More information
Age/SizeGrowthLength-weightLength-lengthLength-frequenciesMorphometricsMorphologyLarvaeLarval dynamicsRecruitmentAbundance
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
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Estimates based on models
Phylogenetic diversity index (Ref.
82805): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00741 (0.00281 - 0.01956), b=3.04 (2.81 - 3.27), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trophic Level (Ref.
69278): 3.9 ±0.5 se; Based on size and trophs of closest relatives
Resilience (Ref.
120179): Low, minimum population doubling time 4.5 - 14 years (Fec assumed to be <100).
Vulnerability (Ref.
59153): Moderate vulnerability (39 of 100) .