Bidyanus bidyanus, Silver perch : fisheries, aquaculture, gamefish

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Bidyanus bidyanus (Mitchell, 1838)

Silver perch
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Image of Bidyanus bidyanus (Silver perch)
Bidyanus bidyanus
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Classificatie / Names Lokale namen | Synoniemen | Catalog of Fishes(Genus, Soort(en)) | 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 Ecologie

; zoet water benthopelagisch; potamodroom (Ref. 51243); diepte 10 - ? m. Subtropical; 10°C - 30°C (Ref. 2060); 29°S - 35°S

Verspreiding Landen | FAO regio's | Ecosystemen | Voorkomen | Point map | Introducties | 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.

Lengte bij maturiteit / Grootte / Gewicht / Leeftijd

Maturity: Lm ?, range 34 - ? cm
Max length : 40.0 cm SL mannelijk / geslacht onbekend; (Ref. 2906); common length : 30.0 cm SL mannelijk / geslacht onbekend; (Ref. 44894); max. gepubliceerd gewicht: 1.5 kg (Ref. 5259)

Biologie     Verklarende woordenlijst (bv. 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).

Levenscyclus en paargedrag Maturiteit | Voortplanting | Paaien | Eieren | Fecunditeit | Larven

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).

Hoofdreferentie Upload your references | Referenties | Coördinator | Medewerkers

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)

Status op de Rode Lijst van het IUCN (Ref. 130435)

  Gevoelig (NT) ; Date assessed: 13 February 2019

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Gevaar voor de mens

  Harmless (Ref. 2906)





Gebruik door de mens

Visserij: commercieel; Aquacultuur: commercieel; sportvis: ja
FAO - Aquacultuur: productie; ; Publication: search | FishSource |

Meer informatie

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Internetbronnen

AFORO (otoliths) | Exoten/Invasieve soorten database | Aquatic Commons | BHL | Cloffa | BOLDSystems | Websites from users | Bekijk FishWatcher | CISTI | Catalog of Fishes: Genus, Soort(en) | DiscoverLife | ECOTOX | FAO - Aquacultuur: productie; ; Publication: search | Faunafri | Fishipedia | Fishtrace | GenBank: genoom, nucleotide | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Nationale databanken | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | Tree of Life | Wikipedia: ga naar, zoek | World Records Freshwater Fishing | Zoological Record

Estimates based on models

Fylogenetische diversiteitsindex (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).
Trofisch niveau (Ref. 69278):  3.0   ±0.34 se; based on food items.
Weerstandsvermogen (Ref. 120179):  Gemiddeld, minimale populatieverdubbelingstijd 1,4-4,4 jaar (tm=2-3).
Fishing Vulnerability (Ref. 59153):  Moderate vulnerability (39 of 100).
Prijsklasse (Ref. 80766):   Unknown.