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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

Классификация / Names народные названия | синонимы | Catalog of Fishes(род, виды) | 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 экология

; пресноводный донно-пелагический; мигрирует в реке (Ref. 51243); пределы глубины 10 - ? m.   Subtropical; 10°C - 30°C (Ref. 2060); 29°S - 35°S

распространение страны | регионы FAO | Ecosystems | места находок | Point map | интродукции | 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 / Size / Вес / Возраст

Maturity: Lm ?, range 34 - ? cm
Max length : 40.0 cm SL самец/пол неопределен; (Ref. 2906); common length : 30.0 cm SL самец/пол неопределен; (Ref. 44894); наибольший вес (опубликованные данные): 1.5 kg (Ref. 5259)

биология     глоссарий (например 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).

Life cycle and mating behavior половая зрелость | размножение | нерест | икра | Fecundity | личинки

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).

Основная ссылка Upload your references | ссылки | координатор | соавторы

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)

Статус Красного Списка МСОП (Ref. 130435)

  Близок к исчезновению (NT) ; Date assessed: 13 February 2019

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Угроза для людей

  Harmless (Ref. 2906)




Использование человеком

рыболовство: коммерческий; аквакультура (рыбоводство): коммерческий; объект спортивного рыболовства: да
FAO(аквакультура (рыбоводство): production; ; publication : search) | FishSource |

дополнительная информация

Возраст/Размеры
рост
Зависимость между длиной и массой тела
Зависимость между длинами
Размерный состав
морфометрия
морфология
личинки
динамика численности личинок
пополнение
численность
ссылки
аквакультура (рыбоводство)
особенности рыбоводства
степень растяжения
генетика
Electrophoreses
наследуемость
болезни
обработка
Mass conversion
соавторы
изображения
Stamps, Coins Misc.
звуки
Ciguatera
скорость
тип плавания
жаберная область
Otoliths
мозг
зрение

инструменты

Специальные отчеты

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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).
Trophic level (Ref. 69278):  3.0   ±0.34 se; based on food items.
устойчивость к внешним воздействиям (Ref. 120179):  средний (среднего размера), минимальное время удвоения популяции 1.4-4.4 года (tm=2-3).
Fishing Vulnerability (Ref. 59153):  Moderate vulnerability (39 of 100).
Категория цены (Ref. 80766):   Unknown.