Philippines country information

Common names: Bia, Dwarf pygmy goby
Occurrence: native
Salinity: freshwater
Abundance: scarce (very unlikely) | Ref:
Importance: of no interest | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Originally reported from the Malabon River, Rizal, Philippines, which has meanwhile been reclaimed. First described by Herre in 1927 and was rediscovered in 1950 at Dagatdagatan Saltwater Fishery Experimental Station in Malabon (Ref. 4924). Reported in the sea at Culion Island, off Palawan (Ref. 6216). Also reported from Taal Lake (Ref. 12165). Endemism questionable since this species is also reported from other countries (Kottelat, pers. comm.). Also Ref. 439, 2060, 4924, 48613, 94476.
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: Herre, A.W.C.T., 1953
National Database:

Common names from other countries

Pygmækutling, Bia, 矮鰕虎鱼, ... more

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

> Gobiiformes (Gobies) > Gobiidae (Gobies) > Gobionellinae
Etymology: Pandaka: Sanskrit, pandaka = without testicles, hermaphrodite, homosexual; it is a Philippines fish, the smallest of the world.
More on author: Herre.

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

marinhas; Água doce; estuarina demersal; pH range: 7.0 - 8.4; dH range: ? - 30; anfídromo (Ref. 46888); intervalo de profundidade 0 - 2 m (Ref. 90102). Tropical; 24°C - 30°C (Ref. 2060)

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

Asia: Indonesia and Philippines. Originally reported from the Malabon River, Rizal, Philippines, which has meanwhile been reclaimed. According to Ref. 6216 it has also been collected in the sea at Culion Island, off Palawan, Philippines. Recently collected in Bali (1991), Sulawesi (1988), and Singapore (1992), M. Kottelat, pers. comm.

Comprimento de primeira maturação / Tamanho / Peso / Idade

Maturity: L_m 1.0, range 1 - 1.1 cm
Max length : 1.1 cm SL macho/indeterminado; (Ref. 2060); 1.5 cm TL (female)

Descrição suscinta Chaves de identificação | Morfologia | Morfometria

Espinhos dorsais (total) : 7; Raios dorsais (total) : 6 - 7; Espinhos anais: 1; Raios anais : 6 - 7. Dark spots on sides of body somewhat forming 4 cross-bands; heavy pigmentations on all bases of fins, except ventrals, apparently are continuation of body pigmentation. Head and nape naked. 22 to 25 scales in longitudinal series (Ref. 4924); further characterized by presence of black spot at middle of caudal fin base; first dorsal fin yellowish with black anterior; rounded caudal fin (Ref. 90102).

This is one of the smallest freshwater fishes: males are mature at 9 mm, females at 15 mm. The species used to frequent shady river banks in the Malabon River, Rizal Province, Luzon, Philippines; however, the type locality has been reclaimed and the remaining waters in the area are heavily polluted; the species is considered extinct in the Philippines (Rainer Froese, pers. comm., 2004). It has been apparently imported into Germany in 1958; a color photo of the fish was taken in an aquarium (Ref. 2060). Found in brackish waters and mangrove areas of Indonesia (M. Kottelat, pers. comm.).

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

Probably a non-guarder (RF).

Referência principal Upload your references | Referências | Coordenador | Colaboradores

Larson, H.K., 2001. A revision of the gobiid fish genus Mugilogobius (Teleostei: Gobioidei), and its systematic placement. Rec. West. Aust. Mus. (Suppl. No. 62):1-233. (Ref. 43716)

Status na Lista Vermelha da UICN (Ref. 130435)

Dados insuficientes (DD) ; Date assessed: 14 October 2020

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Ameaça para os humanos

Harmless

Uso pelos humanos

Pescarias: sem interesse

FAO(Publication : search) | FishSource |

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Estimates based on models

Preferred temperature (Ref. 115969): 27.6 - 29.2, mean 28.8 (based on 873 cells).

Índice de diversidade filogenética (Ref. 82804): PD₅₀ = 0.5078 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00977 (0.00442 - 0.02163), b=3.05 (2.86 - 3.24), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

Nível Trófico (Ref. 69278): 2.9 ±0.4 se; based on size and trophs of closest relatives

Resiliência (Ref. 120179): Elevada, tempo mínimo de duplicação da população menor que 15 meses (Preliminary K or Fecundity.).

Fishing Vulnerability (Ref. 59153): Low vulnerability (10 of 100).

Pandaka pygmaea Herre, 1927