Breeding males also have red on top of the eye, an incomplete reddish-orange mid-lateral stripe and dark fins with brilliant reddish tinges. 2004. Llewellyn, L.C. Effects of flooding on recruitment and dispersal of the southern pygmy perch (Nannoperca australis) at a Murray River floodplain wetland. & Wong, B.B.M. MSc Thesis, Charles Sturt University, 169 pp. 2001. Reed Books, Sydney, New South Wales. Unmack, P.J., Hammer, M.P., Adams, M. & Dowling, T.E. Hammer, M.P. Tonkin, Z., King, A.J. Lintermans M. 2007. Allen, G.R. Scales large ctenoid; scales absent from interorbital space, opercula, cheeks, snout and lower jaw; lateral line present, consisting of irregular series of pored scales. [2], Southern pygmy perch are endemic to temperate rivers systems in south eastern Australia, especially the Murray=Murrumbidgee river system from Brinagagee bear Darlington Point in New South Wales, in [[Victoria (Australia)[[ west to Ewens Ponds in South Australia. Freshwater fish of northeast Tasmania with notes on the dwarf galaxias. Pearce, L., Bice, C., Whiterod, N. & Raadik, T. 2019. 2016. These include still or gently flowing streams, lakes, billabongs, drains, dams, swamps and ephemeral creeks and wetlands, where they tend to be found around the vegetated margins. Spatial variation in egg size and egg number reflects trade-offs and bet-hedging in a freshwater fish. The breeding season runs from the late Winter into the early Spring once the water reaches a temperature of {{convert|16| water temperatures rise above 16 °C (61 °F). Molecular Ecology 25: 5093–5113. The base colour ranges from pale cream to green-brown, darker on the back and paler on the belly. Unmack, P.J. Woodward, G.M.A. Single dorsal fin consisting of anterior spiny section and posterior soft section separated by deep notch; anal fin opposite and similar to soft part of dorsal fin; pectoral fins small, rounded, low on sides; ventral fins small, pointed, positioned well forward on abdomen; caudal fin large, rounded. 10.2305/IUCN.UK.2019-3.RLTS.T123358579A123382811.en, https://en.wikipedia.org/w/index.php?title=Southern_pygmy_perch&oldid=982338025, Creative Commons Attribution-ShareAlike License, This page was last edited on 7 October 2020, at 14:56. PhD thesis, School of Biological Sciences, Monash University, Melbourne. An amazing discovery. Southern Pygmy Perch inhabit a wide range of well-vegetated slow-flowing aquatic environments. Perth : Western Australian Museum 394 pp. The complete mitochondrial genome of two recently derived species of the fish genus Nannoperca (Perciformes, Percichthyidae). Breeding males display brighter colours, with the dorsal and anal fins becoming bright red with black edges, and the region around the vent and on the breast and chin turning black. & Zampatti, B. The southern pygmy perch (Nannoperca australis), also known as the Tasmanian pygmy perch, is a species of freshwater ray-finned fish, a temperate perch from the family Percichthyidae which is native to southeastern Australia and Tasmania. 1984. Southern Pygmy Perch reach sexual maturity in their first year, when males grow to lengths of about 30 mm and females about 33 mm. & Allen, M. 2002. Spawning, development and distribution of the southern pigmy perch Nannoperca australis australis Günther from inland waters in eastern Australia. As they mature they prey on larger insects including mayflies but their small mouth means that they do not consume many other fishes. Hammer, M. 2002. Part 1. 1 (described as Nannoperca australis flindersi). Journal of Animal Ecology 81: 806-817. The Southern Pygmy Perch was once a common sight in the rivers and streams of South East Australia but since European settlement, its population has dwindled. Southern Pygmy Perch rarely occur in fast-flowing areas. R. Soc. The sexes are separate and fertilisation is external. The southern pygmy perch (Nannoperca australis), also known as the Tasmanian pygmy perch, is a species of freshwater ray-finned fish, a temperate perch from the family Percichthyidae which is native to southeastern Australia and Tasmania. 2011. & Beheregaray, L.B. Spawning occurs from late winter to early spring when water temperatures rise above 16 degs C. During the breeding season, males defend a small territory. The anal fin is similar in shape to the soft part of the dorsal fin and has 3 spines and 7-8soft rays. The female lays small clutches of eggs in the aquatic vegetation or onto the riverbed within the male's territory. Biogeography of Australian freshwater fishes. See ref at BHL. Records of the Queen Victoria Museum, Launceston 103: 145-149. There are thin bands of villiform teeth on the jaws and the roof of the mouth. & Beheregaray, L.B. Fins of breeding males are bright red (compared to black in N. obscura). Click to enlarge. It has a large head the top of which bulges slightly and a blunt snout. 1996. 1971. 2 (described as Paradules leetus). & Beheregaray, L. 2016. A study of the behaviour and breeding biology of the Southern Pigmy Perch Nannoperca australis australis (Günther) (Teleostei, Nannopercidae). Johnston, R.M. The species is threatened by predation from introduced fishes such as Redfin, Perca fluviatilis, Brown Trout, Rainbow Trout and Eastern Gambusia, Gambusia holbrooki, is also a major threat. Life history, food and habitat of southern pygmy perch, Nannoperca australis, in the Macquarie River, Tasmania.
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