Philippines country information

Common names: Bakla, Bal-la, Batug
Occurrence: native
Salinity: freshwater
Abundance: common (usually seen) | Ref: Vallejo, A.N., 1985
Importance: commercial | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Abundant in Lake Taal, 1995 survey (Ref. 12165,13446), as part of gill net catch composition (Ref. 81207), collected from the lake in Laurel, Batangas as a living specimen (Ref. 81820). Found common in Laguna de Bay catch (Ref. 13460, 80824). Also found in the reservoirs of Lake Buhi and Binga (Ref. 13464); Lake Buluan (13492); Lake Naujan (Ref. 13446); Pampanga River, Paitan Lake and Pantabangan Dam (Nueva Ecija) (Ref. 109918). Museum specimens collected in 1983-4 from various localities, LRS-83111 (Ref. 13460). A local introduction. Migrated into Lake Mainit via the Tubay River, Mindanao (Ref. 4567, 50320, 13446, 81829), reported from Kalinawan River (Ref. 81829). Caused the extinction of 17 endemic cyprinid species and three genera of Lake Lanao (Ref. 12217, 13446, 81887). The loss of the endemic cyprinids has been attributed to the heavy predation by the species which was inadvertently stocked in the lake with Nile tilapia fingerlings coming from a government hatchery in Surigao del Norte (Ref. 48328). Also Ref. 5258, 41236, 48328, 95183.
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

Fresh water goby, Ganges goby, Bar eyed goby, ... more

Classification / Names Nombres comunes | Sinónimos | Catalog of Fishes(Género, Especie) | ITIS | CoL | WoRMS | Cloffa

> Gobiiformes (Gobies) > Gobiidae (Gobies) > Gobiinae
Etymology: Glossogobius: Greek, glossa = tongue + Latin, gobius = gudgeon (Ref. 45335).
More on author: Hamilton.

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

marino; agua dulce; salobre bentopelágico; anfidromo (Ref. 51243); rango de profundidad 0 - 5 m (Ref. 86942). Tropical; 25°C - ? (Ref. 2059); 30°N - 32°S, 25°E - 176°E

Distribución Países | Áreas FAO | Ecosistemas | Ocurrencias, apariciones | Point map | Introducciones | Faunafri

Africa to Oceania: Red Sea and East Africa, south to Transkei in South Africa, and most inland freshwater bodies over the Indian Ocean and western Pacific (Ref. 4343, 52193). Common in coastal and estuarine waters from austral Africa and Madagascar to India and south of China.

Length at first maturity / Tamaño / Peso / Age

Maturity: L_m ?, range 9 - ? cm
Max length : 50.0 cm SL macho / no sexado; (Ref. 4967); common length : 11.3 cm SL macho / no sexado; (Ref. 35840)

Short description Claves de identificación | Morfología | Morfometría

Espinas dorsales (total) : 7; Radios blandos dorsales (total) : 8 - 9; Espinas anales: 1; Radios blandos anales: 8 - 9.

Found mainly in freshwater and estuaries, but also enter the sea (Ref. 4833). Also occur in canals, ditches and ponds (Ref. 12693). Found in clear to turbid streams with rock, gravel or sand bottoms (Ref. 2847). Encountered in medium to large-sized rivers of the lower Mekong (Ref. 12975). Feed on small insects, crustaceans and small fish. Grow to a much larger size in brackish water than in fresh water. Marketed fresh (Ref. 12693). Cannibalism is relatively common for this species (Ref. 48660).

Life cycle and mating behavior Maturities | Reproducción | Spawnings | Egg(s) | Fecundities | Larva

Spawning occurs in freshwater afterwhich eggs and larvae are washed down by the river current into the sea (Ref. 110258).

Main reference Upload your references | Referencias | Coordinador | Colaboradores

Maugé, L.A., 1986. Gobiidae. p. 358-388. In J. Daget, J.-P. Gosse and D.F.E. Thys van den Audenaerde (eds.) Check-list of the freshwater fishes of Africa (CLOFFA). ISNB, Brussels; MRAC, Tervuren; and ORSTOM, Paris. Vol. 2. (Ref. 4343)

IUCN Red List Status (Ref. 130435)

Least Concern (LC) ; Date assessed: 11 August 2019

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

Pesquerías: escaso valor comercial; Acuicultura: comercial; Acuario: Comercial

FAO(Publication : search) | FishSource |

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Check for Aquarium maintenance | Check for Species Fact Sheets | Check for Aquaculture Fact Sheets

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Fuentes de Internet

Estimates based on models

Preferred temperature (Ref. 115969): 25 - 29.3, mean 28.5 (based on 2836 cells).

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00724 (0.00642 - 0.00818), b=3.07 (3.04 - 3.10), in cm Total Length, based on LWR estimates for this species (Ref. 93245).

Nivel trófico (Ref. 69278): 3.7 ±0.2 se; based on diet studies.

Resiliencia (Ref. 120179): Alto, población duplicada en un tiempo mínimo inferior a 15 meses (K=0.8; Fec=18,578;).

Fishing Vulnerability (Ref. 59153): Low to moderate vulnerability (26 of 100).

Price category (Ref. 80766): Very high.

Glossogobius giuris (Hamilton, 1822)