Tuesday, January 27, 2009

Guide To Soon Hock





Oxyeleotris marmorata

Soon Hock

Family: Eleotridae (Sleepers), subfamily: Butinae

Order: Perciformes (perch-likes)

Class: Actinopterygii (ray-finned fishes)

FishBase name: Marble goby

Max. size: 65.0 cm SL (male/unsexed; (Ref. 43281))

Environment: demersal; potamodromous (Ref. 51243); freshwater; brackish;

pH range: 6.5 - 7.5; dH range: 10 - 15; depth range 10 - ? m

Climate: tropical; 22 – 28°C (Ref. 13371); 23°N - 18°S

Importance: fisheries: commercial; aquaculture: commercial; aquarium: commercial

Resilience: High, minimum population doubling time less than 15 months(Fec = 10,000)

Vulnerability: High vulnerability (59.90). (Ref. 59153)

Distribution: Gazetteer Asia: Mekong and Chao Phraya basins, Malay Peninsula, Indochina, Philippines and Indonesia. Record from Fiji needs confirmation.

Morphology: Dorsal spines (total): 7; Dorsal soft rays (total): 9; Anal spines: 1; Anal soft rays: 8. With 60-65 predorsal scales; without ocellus on caudal peduncle (Ref. 43281).

Biology: Found in rivers, swamps, reservoirs and canals. Enters flooded forest (Ref. 9497). Feeds on small fishes, shrimps, aquatic insects, mollusks and crabs (Ref. 6459). Considered a delicacy over much of eastern Asia. Exported fishes command a high price (Ref. 12693). Maybe the largest species of the goby-like fishes.

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