Philippines country information

Common names: [No common name]
Occurrence: misidentification
Salinity: marine
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Outside distributional range (Ref. 114953, 130662).
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/rp.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Last, P.R., S. Weigmann and G.J.P. Naylor, 2023
National Database:

Common names from other countries

Dwarf whipray, Dwarf whipray, Dwergpijlstaartrog, ... more

Classificação / Names Nomes comuns | Sinônimos | Catalog of Fishes(Gênero, Espécies) | ITIS | CoL | WoRMS | Cloffa

Elasmobranchii (tubarões e raias) (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 Ecologia

marinhas; estuarina demersal; intervalo de profundidade 0 - 40 m (Ref. 121773). Tropical; 30°N - 10°N, 34°E - 76°E

Distribuição Países | Áreas da FAO | Ecossistemas | Ocorrências | Point map | Introduções | Faunafri

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

Comprimento de primeira maturação / Tamanho / Peso / Idade

Maturity: L_m 16.7 range ? - ? cm
Max length : 20.3 cm WD macho/indeterminado; (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).

Ciclo de vida ou comportamento de acasalamento Maturities | Reprodução | Spawnings | Egg(s) | Fecundities | Larvas

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).

Referência principal Upload your references | Referências | Coordenador : McEachran, John | Colaboradores

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 na Lista Vermelha da UICN (Ref. 130435)

Quase ameaçada (NT) (A2d+3d); Date assessed: 09 February 2017

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Ameaça para os humanos

Harmless

Uso pelos humanos

Pescarias: espécies comerciais

FAO(Publication : search) | FishSource |

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Checar Manutenção em Aquário | Checar Planilhas de Fatos sobre as Espécies | Checar Planilhas de Fatos sobre Aquicultura

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Fontes da internet

Estimates based on models

Preferred temperature (Ref. 115969): 28.1 - 29.1, mean 28.8 (based on 326 cells).

Índice de diversidade filogenética (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).

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

Resiliência (Ref. 120179): Baixo, tempo mínimo de duplicação da população 4,5 - 14 anos (Assuming fecundity<100).

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

Categoria de preço (Ref. 80766): Low.

Brevitrygon walga (Müller & Henle, 1841)