The members of the family Percichthyidae are known as the temperate perches. They belong to the order Perciformes, the perch-like fishes.
The Macquarie perch is an Australian native freshwater fish of the Murray-Darling river system. It is a member of the family Percichthyidae and is closely related to the golden perch.
The golden perch is a medium-sized, yellow or gold-coloured Australian freshwater fish species found primarily in the Murray-Darling River system, though a subspecies is found in the Lake Eyre-Cooper Creek system, and another subspecies, suspected to be ancestral to all other populations, is found in the Fitzroy River system in Queensland. Golden perch are not a true perch of the genus Perca, but a member of the Percichthyidae family.
The estuary perch is a species of temperate perch endemic to south-eastern Australia, where it prefers brackish waters such as lower tidal reaches of coastal lakes, rivers, and streams.
The two-spined blackfish is a species of temperate perch endemic to Australia.
The Mary River cod is a species of temperate perch native to the coastal Mary River system of southern Queensland, Australia. Mary River cod are one of Australia's most endangered freshwater fishes and are notable for being the most northerly of the four Maccullochella cods found or once found in coastal river systems of eastern Australia.
The Bloomfield River cod or the tropical nightfish, is a species of temperate perch endemic to Australia. It is only found in an 11-km stretch of the Bloomfield River in northern Queensland. These waterfalls appear to have blocked the migration of more aggressive tropical freshwater fish species such as the sooty grunter that have presumably naturally displaced the Bloomfield River cod from its former range in prehistoric times. With its very limited distribution, the Bloomfield River cod is clearly a relict species. It is a very important relict species, however, as it is the most northerly distributed percichthyid species in Australia, and raises interesting questions on the biogeography of percichthyid fish in Australia and the history of their ancient colonisation of Australian rivers.
The European perch, also known as the common perch, redfin perch, big-scaled redfin, English perch, Eurasian perch, Eurasian river perch, Hatch or in Anglophone parts of Europe, simply the perch, is a predatory species of the freshwater perch native to Europe and northern Asia. The species is a popular quarry for anglers, and has been widely introduced beyond its native area, into Australia, New Zealand, and South Africa. They have caused substantial damage to native fish populations in Australia and have been proclaimed a noxious species in New South Wales.
The western pygmy perch is a species of temperate perch endemic to southwestern Australia.
Balston's pygmy perch, 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.
The Yarra pygmy perch, Nannoperca obscura, is a species of temperate perch endemic to Australia. It occurs in the coastal drainages of southeastern Australia, preferring streams and lakes with plentiful vegetation and flowing water. It feeds on small insects and their larvae, as well as small crustaceans. This species can reach a total length of 7.5 cm (3.0 in), though most only reach about 5 cm (2.0 in). Yarra pygmy perch are olive-green above, greenish-brown on the sides, and yellowish-white below, with chevron-shaped markings on rear half of the body. It can also be found in the aquarium trade.
The golden pygmy perch is a species of temperate perch endemic to Australia, where it is found in both Ewens Ponds and Deep Creek, South Australia, and several tributaries of the Glenelg River in Victoria. It prefers flowing water of ponds or small streams, generally being more commonly found in the streams that connect to the ponds, with plentiful vegetation or debris to provide shelter. It preys on extremely small crustaceans and aquatic insects. This species can reach 6.5 cm (2.6 in) SL. It can also be found in the aquarium trade.
The sharphead darter is a species of freshwater ray-finned fish, a darter from the subfamily Etheostomatinae, part of the family Percidae, which also contains the perches, ruffes and pikeperches. It is endemic to the eastern United States, where it is only known to occur in the Holston and Nolichucky River systems. It inhabits small to medium-sized rivers, being found in rocky riffles in deep, fast-flowing waters. This species can reach a length of 8.4 cm (3.3 in), though most only reach about 5.5 cm (2.2 in).
The coppercheek darter is a species of freshwater ray-finned fish, a darter from the subfamily Etheostomatinae, part of the family Percidae, which also contains the perches, ruffes and pikeperches. It is endemic to the southeastern United States. It is only known from the Duck River system of Tennessee. It is an inhabitant of small and medium rivers where it occurs in rocky riffles with clear, fast-flowing water. It preys on insect larvae and other immature stages and is also known to consume snails. This species can reach a length of 8 cm (3.1 in), though most only reach about 5.6 cm (2.2 in).
The Conchos darter is a species of freshwater ray-finned fish, a darter from the subfamily Etheostomatinae, part of the family Percidae, which also contains the perches, ruffes and pikeperches. It is endemic to the Conchos River system in northern Mexico, where it is known as dardo de conchos. This species can reach a length of 5.5 cm (2.2 in). It occurs in clear water in areas of shallow, rocky riffles and poolswhere the bed consists of gravel, sand and silt. It can be found as deep as 1 metre (3.3 ft) where the current may vary from slight to strong. The Conchos darter feeds on the bottom of the streams it occurs in on aquatic insect larvae. It is thought that it spawns from late February until June, and it is able to survive water temperatures as high as 30 °C (86 °F) during the summer. The Conchos darter was first formally described in 1889 by the American ichthyologist David Starr Jordan (1851-1931) with the type locality given as the Río Chihuahua in Mexico.
The honey blue-eye is an endangered species of fish in the subfamily Pseudomugilinae. It is endemic to southeastern Queensland, Australia, where it is found in mildly acidic, often tannin-stained, ponds and streams in wallum habitat.
Scortum barcoo is a species of fish in the family Terapontidae, known by the common names Barcoo grunter and jade perch. It is endemic to Australia, where it can be found in certain major rivers, including the Barcoo River. It is reared in hatcheries.
The southern pygmy perch, 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.
The little pygmy perch is a freshwater ray finned fish, a temperate perch from the family Percichthyidae endemic to southwestern Western Australia. It is known from just four sites in the Denmark catchment. It is found in tannin stained, acidic and shallow streams in woodland dominated by Melaleuca rhaphiophylla.
The turquoise darter is a species of ray-finned fish, a darter from the subfamily Etheostomatinae, part of the family Percidae which includes the perches, ruffes and pike-perches. It is found in the Edisto, Savannah and Altamaha River drainages of North Carolina, South Carolina and Georgia. It inhabits rocky riffles of creeks and small to medium rivers. This species can reach a length of 8.0 cm (3.1 in), though most only reach about 6.0 cm (2.4 in).
