Environment: milieu / climate zone / depth range / distribution range
Ecologie
; marien demersaal. Subtropical; 31°N - 7°N, 103°E - 123°E (Ref. 114953)
Northwest Pacific: Shanghai, China to Cambodia.
Size / Gewicht / Leeftijd
Maturity: Lm ?  range ? - 32 cm
Max length : 32.0 cm WD mannelijk/geslacht niet bekend; (Ref. 114953)
A poorly known species; attains at least 32 cm DW, mature at this size (Ref. 114953). Ovoviviparous (Ref. 50449).
Life cycle and mating behavior
Geslachtsrijpheid | Voortplanting | Kuitschieten | Eieren | Fecundity | Larven
Exhibit ovoviparity (aplacental viviparity), with embryos feeding initially on yolk, then receiving additional nourishment from the mother by indirect absorption of uterine fluid enriched with mucus, fat or protein through specialised structures (Ref. 50449). Distinct pairing with embrace (Ref. 205).
Nishida, K. and K. Nakaya, 1990. Taxonomy of the genus Dasyatis (Elasmobranchia, Dasyatidae) from the North Pacific. In: Pratt Jr., H. L., S. H. Gruber and T. Taniuchi (eds.): Elasmobranchs as living resources: advances in the biology, ecology, systematics, and the status of the fisheries. NOAA (National Oceanic and Atmospheric Administration) Tech. Rept. NMFS 90:327-346. (Ref. 7445)
Status op de Rode Lijst van het IUCN (Ref. 125652)
Gevaarlijk voor mensen
Harmless
Gebruik door de mens
Meer informatie
ReferentiesAquacultuurAquacultuurprofielKweeklijnenGeneticaAlleelfrequentiesErfelijkheidZiektenVerwerkingNutrientsMass conversion
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Estimates based on models
Phylogenetic diversity index (Ref.
82805): PD
50 = 0.5010 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00617 (0.00260 - 0.01460), b=3.06 (2.86 - 3.26), in cm total length, based on LWR estimates for this Subfamily-BS (Ref.
93245).
Trophic level (Ref.
69278): 3.7 ±0.5 se; based on size and trophs of closest relatives
Weerstandsvermogen (Ref.
120179): laag, minimale populatieverdubbelingstijd 4,5-14 jaar (Assuming fecundity<100).
Fishing Vulnerability (Ref.
59153): Very high vulnerability (90 of 100) .
Climate Vulnerability (Ref.
125649): (0 of 100) .