Nannatherina balstoni Regan 1906

Larvae feed mainly on cladocerans, copepods and dipteran larvae while juveniles and adults ingest mostly terrestial fauna (Ref. 27892). Also Ref. 41789.

Is the rarest of all the endemic freshwater fishes of southwestern Australia. Inhabits coastal streams, lakes, ponds and swamps, where the water is dark and acidic (pH as low as 3.0) and has a large seasonal fluctuation in temperature (11-30°C) (Ref. 27892, 44894). Favors shallow water and is commonly found in association with tall sedge thickets (Ref. 44894). Larva feeds mainly on cladocerans, copepods and dipteran larvae, while juveniles and adults ingest mostly terrestrial fauna (Ref. 6398, 44894). Breeds in the middle of winter in response to flooding. Female lays between 500-1600 eggs each. The majority of adult perishes shortly after spawning at the end of their first year (Ref. 44894). Both male and female attain sexual maturity at the end of their first year of life when they have attained an average TL of 6.0 and 6.3 cm respectively (Ref. 27892). Co-occurs with Edelia vittata over part of its range, but is generally more scarce (Ref. 5259, 44894). Aquarium conditions: pH=7.2, H=8, 24°C water temperature, rock and plant cover, carnivore, peaceful community fish, egg layer (Ref. 6398).

fisheries: of no interest; aquarium: commercial

Balston's pygmy perch (Nannatherina balstoni), also known as Balston's perchlet, or king river perchlet, is a species of temperate perch endemic to Southwest Australia, where it occurs in coastal streams, ponds, lakes, and swamps. It prefers shallow, acidic waters with patches of sedge growth. This species can reach 9 cm (3.5 in) SL, though most do not exceed 6 cm (2.4 in). It can also be found in the aquarium trade.

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Nannatherina balstoni Nannatherina generoko animalia da. Arrainen barruko Percichthyidae familian sailkatzen da.

Nannatherina balstoni là một loài cá trông giống cá pecca trong họ Percichthyidae. Loài này chỉ được tìm thấy ở Úc.

巴氏南脂鱸為輻鰭魚綱鱸形目鱸亞目真鱸科的一種，為溫帶淡水魚，分布於澳洲西南部雙人灣至黑木河流域，為特有種，體長可達9公分，棲息在溪流、湖泊及沼澤底層水域，水質偏酸，以昆蟲、橈腳類等為食，生活習性不明，可做為觀賞魚。