Bidyanus
bidyanus
(Mitchell, 1838)
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Family:
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Terapontidae
(Grunters or tigerperches)
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Order:
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Perciformes
(perch-likes)
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Class:
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Actinopterygii (ray-finned fishes)
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In this site name:
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Bidyan perch |
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Max. size:
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40.0 cm SL (male/unsexed; Ref. 2906); max. published weight: 1,500 g (Ref. 5259) |
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Environment: |
benthopelagic; potamodromous (Ref. 51243); freshwater; depth range 10 %26#150; ? m
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Climate: |
subtropical; 10 %26#150; 30%26deg;C; 29%26deg;S - 35%26deg;S |
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Importance:
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fisheries: commercial; aquaculture: commercial; gamefish: yes |
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Resilience: |
Medium, minimum population doubling time 1.4 - 4.4 years (tm=2-3) |
Distribution:
www.ccfishery.net
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Oceania: known only from the Murray-Darling River system, Australia. Range boundaries: Chinchilla (on the Condamine River), South Queensland, Bonshaw (on the Dumaresq River), northeastern New South Wales, Albury (on the Murray River), southeastern New South Wales, Seven Creek and Goulburn River, South Victoria.
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Biology: |
Found in rivers, lakes and reservoirs, preferring fast-flowing waters of rapids and races and usually forming aggregations near the surface. Usually found below rapids and weirs (Ref. 44894). Feeds on aquatic insects, mollusks, earthworms and plants. Temp.: 2-37°C. Maturity: F, 3 y and 34 cm SL; M, 23.3 cm SL. Spawning: summer (Nov.-Jan., 23-30°C water temp.), effect upstream migration. Fecundity: 500000 eggs per 1.8kg. Eggs: pelagic, 2.7-2.8 mm diameter. Hatching: 30 hrs at 26-27°C. Larvae: 3.6 mm at hatching. A good angling and food fish which has been increasingly utilized as an aquaculture species in farm dams throughout Australia (Ref. 44894).
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Red List Status: |
Vulnerable (VU) (A1cd)(Ref. 57073)
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Dangerous:
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harmless
, Merrick, J.R. and G.E. Schmida. 1984
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Coordinator: |
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