Philippines country information

Common names: [No common name]
Occurrence: not established
Salinity: freshwater
Abundance: | Ref:
Importance: | Ref:
Aquaculture: likely future use | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Roger Pullin, pers. comm.
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/rp.html
National Fisheries Authority:
Occurrences: Occurrences Point map
National Database:

Common names from other countries

银锯眶鯻(银鲈), Australischer Silberbarsch, Sølvaborre, ... more

Classification / Names Tên thường gặp | Các synonym ( Các tên trùng) | Catalog of Fishes(Giống, Các loài) | ITIS | CoL | WoRMS | Cloffa

> Centrarchiformes (Basses) > Terapontidae (Grunters or tigerperches)
Etymology: Bidyanus: A local name, "bidyani" in Australia, New South Wales.

Environment: milieu / climate zone / depth range / distribution range Sinh thái học

; Nước ngọt Sống nổi và đáy; di cư trong nước ngọt (Ref. 51243); Mức độ sâu 10 - ? m. Subtropical; 10°C - 30°C (Ref. 2060); 29°S - 35°S

Sự phân bố Các nước | Các khu vực của FAO | Các hệ sinh thái | Những lần xuất hiện | Point map | Những chỉ dẫn | Faunafri

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.

Length at first maturity / Bộ gần gũi / Khối lượng (Trọng lượng) / Age

Maturity: L_m ?, range 34 - ? cm
Max length : 40.0 cm SL con đực/không giới tính; (Ref. 2906); common length : 30.0 cm SL con đực/không giới tính; (Ref. 44894); Khối lượng cực đại được công bố: 1.5 kg (Ref. 5259)

Adults are 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). Feed 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).

Life cycle and mating behavior Chín muồi sinh dục | Sự tái sinh sản | Đẻ trứng | Các trứng | Sự sinh sản | Ấu trùng

Upstream spawning migration in summer to areas behind the peak of the flood. Spawning commences late in the afternoon from the surface to a depth of about 4 m, where there is a flow over a gravel, rock rubble substrate. Considerable spawning activity happens at the water surface. A single female circles slowly to the surface with her head deep and several males participate in courtship and finally in fertilization (Ref. 2906).

Main reference Upload your references | Các tài liệu tham khảo | Người điều phối | Người cộng tác

Paxton, J.R., D.F. Hoese, G.R. Allen and J.E. Hanley, 1989. Pisces. Petromyzontidae to Carangidae. Zoological Catalogue of Australia, Vol. 7. Australian Government Publishing Service, Canberra, 665 p. (Ref. 7300)

IUCN Red List Status (Ref. 130435)

Near Threatened (NT) ; Date assessed: 13 February 2019

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless (Ref. 2906)

Human uses

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Bidyanus bidyanus (Mitchell, 1838)