Bloomfield River cod | |
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Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Chordata |
Class: | Actinopterygii |
Order: | Perciformes |
Family: | Percichthyidae |
Genus: | Guyu Pusey & M. J. Kennard, 2001 |
Species: | G. wujalwujalensis |
Binomial name | |
Guyu wujalwujalensis Pusey & M. J. Kennard, 2001 | |
Synonyms | |
Macquaria wujalwujalensis(Pusey & Kennard, 2001) [2] |
The Bloomfield River cod (Guyu wujalwujalensis) or the tropical nightfish, is a species of temperate perch endemic to Australia. [3] It is only found in an 11-km stretch of the Bloomfield River (between two large waterfalls) in northern Queensland. These waterfalls appear to have blocked the migration of more aggressive tropical freshwater fish species such as the sooty grunter (Hephaestus fuliginosus) 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 species name wujalwujalensis comes from the Wujal Wujal Aboriginal community on the Bloomfield River, and the genus name Guyu comes from the tribe's name for this fish. Bloomfield River cod are the only species in the genus Guyu.
Though named after the Australian freshwater cod species that are the most famous members of the family Percichthyidae (e.g. Murray cod), the Bloomfield River cod has little resemblance to the cod species. In fact, it is very similar in shape and appearance to a juvenile golden perch in a gold/light bronze colouration. It can reach a length of 10.1 centimetres (4.0 in) SL. [3]
Bass is a generic common name shared by many species of ray-finned fish from the large clade Percomorpha, mainly belonging to the orders Perciformes and Moroniformes, encompassing both freshwater and marine species. The word bass comes from Middle English bars, meaning "perch", despite that none of the commonly referred bass species belong to the perch family Percidae.
The Murray cod is a large Australian predatory freshwater fish of the genus Maccullochella in the family Percichthyidae. Although the species is called a cod in the vernacular, it is not related to the Northern Hemisphere marine cod (Gadus) species. The Murray cod is an important part of Australia's vertebrate wildlife—as an apex predator in the Murray-Darling River system—and also significant in Australia's human culture. The Murray cod is the largest exclusively freshwater fish in Australia, and one of the largest in the world. Other common names for Murray cod include cod, greenfish, goodoo, Mary River cod, Murray perch, ponde, pondi and Queensland freshwater cod.
The eastern freshwater cod, also known as the eastern cod or Clarence River cod, is a large predatory freshwater fish of the genus Maccullochella and the family Percichthyidae, that occur in the coastal Clarence River system of north-eastern New South Wales. Eastern freshwater cod are closely related to the Murray cod of the Murray-Darling River system, and are considered an icon of the Clarence River system.
The trout cod or bluenose cod, is a large predatory freshwater fish of the genus Maccullochella and the family Percichthyidae, closely related to the Murray cod. It was originally widespread in the south-east corner of the Murray-Darling river system in Australia, but is now an endangered species.
The members of the family Percichthyidae are known as the temperate perches. They belong to the order Perciformes, the perch-like fishes.
The barramundi, Asian sea bass, or giant sea perch, is a species of catadromous fish in the family Latidae of the order Perciformes. The species is widely distributed in the Indo-West Pacific, spanning the waters of the Middle East, South Asia, Southeast Asia, East Asia, and Oceania.
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 species of Australian freshwater fish 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. Other common names for golden perch are "goldens", “yellowbelly” and "callop", the last generally used only in South Australia.
The Australian bass is a small- to medium-sized species of primarily freshwater fish found in coastal rivers and streams along the east coast of Australia. A member of the genus Macquaria from the family Percichthyidae, the Australian bass is an important member of the native fish assemblages found in east coast river systems. It is a native predatory fish and an extremely popular game fish species among anglers. The species was simply called perch in most coastal rivers where it was caught until the 1960s, when the name "Australian bass" started to gain popularity.
The river blackfish is a freshwater fish endemic to the temperate waters of south-eastern Australia. It is found from southern Queensland through to central Victoria, including in the Murray-Darling river system. It is also found in some eastern and southern flowing coastal rivers. Found primarily in upland and "midland" habitats, though early records of fish fauna suggest it was originally far more extensively distributed and was found in some lowland habitats as well. Originally, river blackfish co-inhabited many of its lowland and "midland" habitats with species such as Murray cod and golden perch, and its upland habitats with species such as trout cod and Macquarie perch. It is a popular angling fish in some parts of its range.
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 silver perch is a medium-sized freshwater fish of the family Terapontidae endemic to the Murray-Darling river system in south-eastern Australia.
Wujal Wujal, sometimes spelt Wudjil Wudjil, is a rural town and locality in the Wujal Wujal Aboriginal Shire, Queensland, Australia. It is an Aboriginal community. In the 2021 census, the locality of Wujal Wujal had a population of 276 people.
Australia has over 5000 described species of fish, a quarter of which are endemic. Seafood and aquaculture are major and highly regulated industries, and fishing for marine and freshwater native fish is popular.
Far North Queensland (FNQ) is the northernmost part of the Australian state of Queensland. Its largest city is Cairns and it is dominated geographically by Cape York Peninsula, which stretches north to the Torres Strait, and west to the Gulf Country. The waters of Torres Strait include the only international border in the area contiguous with the Australian mainland, between Australia and Papua New Guinea.
Freshwater fish of Australia are limited to approximately 280 species, even though the Australian continent is larger than the contiguous United States.
The Yarra pygmy perch is a species of temperate perch that is endemic to southeastern Australia.
The Bloomfield River is a river in the Wet Tropics of Far North Queensland, Australia, noted for its Bloomfield River cod fish species, found only in the river.
The nightfish is a species of freshwater ray-finned fish, a temperate perch from the family Percichthyidae which is endemic to southwestern Australia.
Datnioides undecimradiatus, the Mekong tiger perch is a species of freshwater fish belonging to the family Lobotidae, the triplefins and tiger perches. This species is endemic to the lower and middle Mekong basin in Indochina.
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