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Ikan bertulang rawan (sharks and rays) > Myliobatiformes (Stingrays) > Dasyatidae (Stingrays) > Urogymninae
Etymology: Brevitrygon: Derived from brevis (Latin), meaning short and trygṓn (Greek τρυγών), meaning stingray, in allusion to the short, semi-rigid tails of these stingrays; walga: Name is presumably a variant spelling of wolga, from Wolga Tenkée, a local name for this or a related stingray from the Ganges Delta of India..
More on authors: Müller & Henle.

Environment: milieu / climate zone / depth range / distribution range Ekologi

laut; payau dasar (demersal); kisaran kedalaman 0 - 40 m (Ref. 121773). Tropical; 30°N - 10°N, 34°E - 76°E

Penyebaran Negara-negara | Daerah-daerah FAO | Ecosystems | Kemunculan | Point map | Introduksi | Faunafri

Indian Ocean: eastern India (Bay of Bengal, Madras), Bangladesh to Myanmar (East of Bok Ye-gan).

Length at first maturity / Size / Weight / umur

Maturity: L_m 16.7 range ? - ? cm
Max length : 20.3 cm WD jantan/; (Ref. 130662); 23.3 cm WD (female)

Demersal on insular and continental shelves, and occasionally found in coastal embayments (Ref. 58048); primarily in shallow water from near the shore in estuaries to nearby fishing grounds in bays (Ref. 130662). Ovoviviparous (Ref. 50449). Caught in large quantities as by-catch of bottom trawl and trammel net fisheries. Utilized for its meat, but of limited value due to its very small size (Ref.58048).

Life cycle and mating behavior Maturities | Reproduksi, perkembang biakan | Spawnings | Egg(s) | Fecundities | Larva

Ovoviviparous (Ref. 205), with histotrophy. Gives birth to litters of 1-2 pups; no reproductive synchronicity. Born at 8-10 cm WD (Ref.58048). Distinct pairing with embrace (Ref. 205).

rujukan utama Upload your references | Acuan | Koordinator : McEachran, John | mitra

Last, P.R., S. Weigmann and G.J.P. Naylor, 2023. The Indo-Pacific stingray genus Brevitrygon (Myliobatiformes: Dasyatidae): clarification of historical names and description of a new species, B. manjajiae sp. nov., from the western Indian Ocean. Diversity 15: 1-75. (Ref. 130662)

Status IUCN Red List (Ref. 130435)

hampir terancam (NT) (A2d+3d); Date assessed: 09 February 2017

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

ancaman kepada manusia

Harmless

penggunaan manusia

Perikanan: komersial

FAO - Publication: search | FishSource |

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Trophic ecology
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Estimates based on models

Preferred temperature (Ref. 123201): 28.1 - 29.1, mean 28.8 °C (based on 326 cells).

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5625 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00214 (0.00123 - 0.00371), b=3.04 (2.88 - 3.20), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245).

Trophic level (Ref. 69278): 3.5 ±0.5 se; based on size and trophs of closest relatives

Daya lenting (Ref. 120179): Rendah, Waktu penggandaan populasi minimum 4.5 - 14 tahun (Assuming fecundity<100).

Fishing Vulnerability (Ref. 59153): Very high vulnerability (90 of 100).

kategori harga (Ref. 80766): Low.

Brevitrygon walga (Müller & Henle, 1841)