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Bidyanus bidyanus (Mitchell, 1838)

Silver perch
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Bidyanus bidyanus
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Australia country information

Common names: Bidyan, Bidyan grunter, Bidyan perch
Occurrence: endemic
Salinity: freshwater
Abundance: | Ref:
Importance: commercial | Ref:
Aquaculture: commercial | Ref: Arthington, A.H. and F. McKenzie, 1997
Regulations: | Ref:
Uses: gamefish: yes;
Comments: Occur in the Murray-Darling system. The extensive spawning migrations of adults pose a fishery management problem. Access to upstream spawning areas may be blocked by high level dams or altered thermal regimes which might cause considerable drop in recruitment (Ref. 2906). Conservation status : vulnerable in Victoria (Ref. 48666). Also Ref. 7300.
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/as.html
National Fisheries Authority: http://www.csiro.au/
Occurrences: Occurrences Point map
Main Ref: Allen, G.R., S.H. Midgley and M. Allen, 2002
National Database:

Common names from other countries

分类 / Names 俗名 | 同种异名 | Catalog of Fishes(, ) | ITIS | CoL | WoRMS | Cloffa

Teleostei > 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 生态学

; 淡水 底中水层性; 河川洄游 (Ref. 51243); 深度上下限 10 - ? m.   亞熱帶的; 10°C - 30°C (Ref. 2060); 29°S - 35°S

分布 国家 | FAO区域 | 生态系 | 标本纪录 | Point map | 简介 | 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.
大洋洲: 已知只來自 Murray-Darling 河流域,澳洲了。 排列邊界: Chinchilla(在 Condamine 河上) ,昆士蘭省南方部, Bonshaw(在 Dumaresq 河上) ,東北方的新南威爾斯, Albury(在默里河上) ,東南方的新南威爾斯, 七條小溪與 Goulburn 河, 南方的維多利亞。

Length at first maturity / 大小 / 重量 / 年龄

Maturity: Lm ?, range 34 - ? cm
Max length : 40.0 cm SL 雄鱼/尚未辨别雌雄; (Ref. 2906); common length : 30.0 cm SL 雄鱼/尚未辨别雌雄; (Ref. 44894); 最大体重: 1.5 kg (Ref. 5259)

生物学特性     字汇 (例如 epibenthic)

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).

发现于河,湖与水库了, 偏爱急流与比赛的快速流动的水与通常形成群集接近水表面。 在急流与鱼梁之下通常发现于。 (参考文献 44894) 吃水生昆虫,软件动物,蚯蚓与植物。 温度: 2-37个 ° C. 成熟: F, 3 y 与 34 公分 SL; 公尺, 23.3 公分 SL。 产卵: 夏天 (十一月-一月 , 23-30 °C 水温), 产生溯溪回游。 孕卵数: 500000 每 1.8 卵公斤卵: 大洋性, 2.7-2.8 mm 直径。 孵化: 在 26-27个 ° C. 的 30 hrs 仔魚: 3.6 在孵化的 mm。 在澳洲各處已經逐漸地在農場水壩中被作為一個養殖魚種利用的一個好釣魚與食用魚.(參考文獻 44894)

Life cycle and mating behavior 成熟度 | 繁殖 | 产卵场 | | 孕卵数 | 仔鱼

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).大洋洲: 已知只來自 Murray-Darling 河流域,澳洲了。 排列邊界: Chinchilla(在 Condamine 河上) ,昆士蘭省南方部, Bonshaw(在 Dumaresq 河上) ,東北方的新南威爾斯, Albury(在默里河上) ,東南方的新南威爾斯, 七條小溪與 Goulburn 河, 南方的維多利亞。

主要参考文献 Upload your references | 参考文献 | 合作者 | 合作者

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)

世界自然保护联盟红皮书 (Ref. 130435)

  临近濒危 (NT) ; Date assessed: 13 February 2019

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

对人类的威胁

  无害处的 (Ref. 2906)




人类利用

渔业: 商业性; 养殖: 商业性; 游钓鱼种: 是的
FAO(养殖: 产生; ; publication : search) | FishSource |

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Estimates based on models

Phylogenetic diversity index (Ref. 82804):  PD50 = 0.7500   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01660 (0.00638 - 0.04320), b=2.99 (2.76 - 3.22), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
营养阶层 (Ref. 69278):  3.0   ±0.34 se; based on food items.
回复力 (Ref. 120179):  中等的, 族群倍增时间最少 1.4 - 4.4年 (tm=2-3).
Fishing Vulnerability (Ref. 59153):  Moderate vulnerability (39 of 100).
价格分类 (Ref. 80766):   Unknown.