Philippines country information

Common names: Bia, Sinarapan, Tabios
Occurrence: endemic
Salinity: freshwater
Abundance: | Ref:
Importance: commercial | Ref:
Aquaculture: | Ref:
Regulations: protected | Ref:
Uses: no uses
Comments: Type locality of Mistichthys luzonensis Lake Buhi, Luzon Island, USNM 50303-04 (syntypes) (Ref. 97102). Originally found in Lake Buhi, Camarines Sur, the pygmy goby was exceedingly abundant until 1960 after which it declined and faced extinction in 1978. Tilapia (Oreochromis mossambicus and O. niloticus), grunt or ayungin (Therapon sp.), snakehead (Ophicephalus striatus), and possibly the goby (Glossogobius sp.) introduced in the lake and feeding on this species contributed to the decline of the population. Collected a specimen for the living fish museum (Ref. 81820). The only viable stock is found in Lake Manapao (Camarines Sur Province), now declared as a sanctuary for this vulnerable species. Also used as an aquarium species (Ref. 12157). Also Ref. 12550, 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

吕宋神秘鰕虎鱼, Luzoni kääbusmudil, Luzonintokko, ... more

Classification / Names Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa

Teleostei (teleosts) > Gobiiformes (Gobies) > Gobiidae (Gobies) > Gobionellinae
Etymology: More on author: Smith.

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

Freshwater; demersal; non-migratory; depth range 0 - 12 m. Tropical; 14°N - 13°N

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

Asia: found only in the Philippines in Lakes Buhi, Bato, Katugday and Manapao in Camarines Sur Province and along the Bicol River system. Threatened due to overfishing and predation by introduced fish species.

Length at first maturity / Size / Weight / Age

Maturity: L_m 1.0, range 1 - 1.1 cm
Max length : 2.5 cm TL male/unsexed; (Ref. 4865); max. reported age: 2.45 years (Ref. 48352)

Short description Identification keys | Morphology | Morphometrics

Dorsal spines (total): 4; Dorsal soft rays (total): 6 - 8; Anal spines: 1; Anal soft rays: 8 - 10. Fresh specimens transparent, with large eyes showing the only color, black. Males smaller than females, shorter and more slender. Head naked; body covered with deciduous scales. Scales in longitudinal series 23-24; in transverse series 6. Sides and back of head with few dark or black spots.

Adults occur from the shoreline to depths of at least 12 m. Caught with collapsible Y-shaped push-nets (sakag); also aggregated using a device (abung) wherein the fish comes to rest upon palm leaves and are then harvested using triangular nets (sarap). Sinarapan is a delicacy and of great economic importance to the communities around the lakes. Listed in the Guinness Book of World Records as 'smallest food fish' (Ref. 6472).

Life cycle and mating behavior Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | Larvae

Males sometimes mature below 1 cm; females a little over 1.1 cm. The eggs are pelagic. Upon hatching, the young swims at the surface for a short while, then settles at the bottom.

Main reference Upload your references | References | Coordinator | Collaborators

Herre, A.W.C.T., 1953. Check list of Philippine fishes. Res. Rep. U.S. Fish Wild. Serv. (20):1-977. (Ref. 280)

IUCN Red List Status (Ref. 130435)

Vulnerable (VU) (B1ab(iii)+2ab(iii)); Date assessed: 07 September 2020

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

Fisheries: commercial; aquarium: commercial

FAO(Publication : search) | FishSource |

More information

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Internet sources

Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 1.0000 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00575 (0.00311 - 0.01063), b=3.11 (2.95 - 3.27), in cm Total Length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245).

Trophic level (Ref. 69278): 3.1 ±0.30 se; based on food items.

Resilience (Ref. 120179): High, minimum population doubling time less than 15 months (K=2.25; tmax=2.4).

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

Price category (Ref. 80766): Very high.

Mistichthys luzonensis Smith, 1902