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Macquaria Novemaculeata
The Australian bass (''Macquaria novemaculeata'') is a small- to medium-sized species of primarily freshwater (but estuarine spawning) fish found in coastal rivers and streams along the east coast of Australia. A member of the genus ''Macquaria'' (although some researchers place it in the genus ''Percalates'' instead) from the family Percichthyidae (temperate perches), the Australian bass is an important member of the native fish assemblages found in east coast river systems. It is a native predatory fishHarris JH (1985a). Diet of Australian bass, ''Macquaria novemaculeata'' (Perciformes: Percichthyidae) in the Sydney Basin. ''Australian Journal of Marine and Freshwater Research'' 36: 219–234. and an extremely popular game fish species among anglers.Bethune J (1993). 'Bethune on Bass'. Simon & Schuster Australia, East Roseville, NSW, Australia. 93 pages.Lewers D (1995). 'Fabulous bass and how to catch them'. Horwitz, St Leonards, NSW, Australia. 192 pages. The species was simp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Franz Steindachner
Franz Steindachner (11 November 1834 in Vienna – 10 December 1919 in Vienna) was an Austrian Zoology, zoologist, ichthyologist, and herpetologist. He published over 200 papers on fishes and over 50 papers on reptiles and amphibians. Steindachner described hundreds of new species of fish and dozens of new amphibians and reptiles. At least seven species of reptile have been named after him. Work and career Being interested in natural history, Steindachner took up the study of fossil fishes on the recommendation of his friend Eduard Suess (1831–1914). In 1860 he was appointed to the position of director of the fish collection at the Naturhistorisches Museum, a position which had remained vacant since the death of Johann Jakob Heckel (1790–1857). (in German). Steindachner's reputation as an Ichthyology, ichthyologist grew, and in 1868 he was invited by Louis Agassiz (1807–1873) to accept a position at the Museum of Comparative Zoology at Harvard University. Steindachner took ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Steindachner (1866) Australian Bass
Franz Steindachner (11 November 1834 in Vienna – 10 December 1919 in Vienna) was an Austrian zoologist, ichthyologist, and herpetologist. He published over 200 papers on fishes and over 50 papers on reptiles and amphibians. Steindachner described hundreds of new species of fish and dozens of new amphibians and reptiles. At least seven species of reptile have been named after him. Work and career Being interested in natural history, Steindachner took up the study of fossil fishes on the recommendation of his friend Eduard Suess (1831–1914). In 1860 he was appointed to the position of director of the fish collection at the Naturhistorisches Museum, a position which had remained vacant since the death of Johann Jakob Heckel (1790–1857). (in German). Steindachner's reputation as an ichthyologist grew, and in 1868 he was invited by Louis Agassiz (1807–1873) to accept a position at the Museum of Comparative Zoology at Harvard University. Steindachner took part in the Hassler E ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wilsons Promontory
Wilsons Promontory, is a peninsula that forms the southernmost part of the Australian mainland, located in the state of Victoria. South Point at is the southernmost tip of Wilsons Promontory and hence of mainland Australia. Located at nearby South East Point, () is the Wilsons Promontory Lighthouse. Most of the peninsula is protected by the Wilsons Promontory National Park and the Wilsons Promontory Marine National Park. Human history Wilsons Promontory was first occupied by indigenous Koori people at least 6,500 years prior to European arrival. Middens along the western coast indicate that the inhabitants subsisted on a seafood diet. The first European to see the promontory was George Bass in January 1798. He initially referred to it as "Furneaux's Land" in his diary, believing it to be what Captain Furneaux had previously seen. But on returning to Port Jackson and consulting Matthew Flinders he was convinced that the location was so different it could not be that ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Operculum (fish)
The operculum is a series of bones found in bony fish and chimaeras that serves as a facial support structure and a protective covering for the gills; it is also used for respiration and feeding. Anatomy The opercular series contains four bone segments known as the preoperculum, suboperculum, interoperculum and operculum. The preoperculum is a crescent-shaped structure that has a series of ridges directed posterodorsally to the organisms canal pores. The preoperculum can be located through an exposed condyle that is present immediately under its ventral margin; it also borders the operculum, suboperculum, and interoperculum posteriorly. The suboperculum is rectangular in shape in most bony fishy and is located ventral to the preoperculum and operculum components. It is the thinnest bone segment out of the opercular series and is located directly above the gills. The interoperculum is triangular shaped and borders the suboperculum posterodorsally and the preoperculum anterodorsa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dorsal Fin
A dorsal fin is a fin located on the back of most marine and freshwater vertebrates within various taxa of the animal kingdom. Many species of animals possessing dorsal fins are not particularly closely related to each other, though through convergent evolution they have independently evolved external superficial fish-like body plans adapted to their marine environments, including most numerously fish, but also mammals such as cetaceans (whales, dolphins, and porpoises), and even extinct ancient marine reptiles such as various known species of ichthyosaurs. Most species have only one dorsal fin, but some have two or three. Wildlife biologists often use the distinctive nicks and wear patterns which develop on the dorsal fins of large cetaceans to identify individuals in the field. The bony or cartilaginous bones that support the base of the dorsal fin in fish are called ''pterygiophores''. Functions The main purpose of the dorsal fin is to stabilize the animal against rollin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anal Fin
Fins are distinctive anatomical features composed of bony spines or rays protruding from the body of a fish. They are covered with skin and joined together either in a webbed fashion, as seen in most bony fish, or similar to a flipper, as seen in sharks. Apart from the tail or caudal fin, fish fins have no direct connection with the spine and are supported only by muscles. Their principal function is to help the fish swim. Fins located in different places on the fish serve different purposes such as moving forward, turning, keeping an upright position or stopping. Most fish use fins when swimming, flying fish use pectoral fins for gliding, and frogfish use them for crawling. Fins can also be used for other purposes; male sharks and mosquitofish use a modified fin to deliver sperm, thresher sharks use their caudal fin to stun prey, reef stonefish have spines in their dorsal fins that inject venom, anglerfish use the first spine of their dorsal fin like a fishing rod to lu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Caudal Fin
Fins are distinctive anatomical features composed of bony spines or rays protruding from the body of a fish. They are covered with skin and joined together either in a webbed fashion, as seen in most bony fish, or similar to a flipper, as seen in sharks. Apart from the tail or caudal fin, fish fins have no direct connection with the spine and are supported only by muscles. Their principal function is to help the fish swim. Fins located in different places on the fish serve different purposes such as moving forward, turning, keeping an upright position or stopping. Most fish use fins when swimming, flying fish use pectoral fins for gliding, and frogfish use them for crawling. Fins can also be used for other purposes; male sharks and mosquitofish use a modified fin to deliver sperm, thresher sharks use their caudal fin to stun prey, reef stonefish have spines in their dorsal fins that inject venom, anglerfish use the first spine of their dorsal fin like a fishing rod to lu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Australian Bass
The Australian bass (''Macquaria novemaculeata'') is a small- to medium-sized species of primarily freshwater (but estuarine spawning) fish found in coastal rivers and streams along the east coast of Australia. A member of the genus ''Macquaria'' (although some researchers place it in the genus ''Percalates'' instead) from the family Percichthyidae (temperate perches), the Australian bass is an important member of the native fish assemblages found in east coast river systems. It is a native predatory fishHarris JH (1985a). Diet of Australian bass, ''Macquaria novemaculeata'' (Perciformes: Percichthyidae) in the Sydney Basin. ''Australian Journal of Marine and Freshwater Research'' 36: 219–234. and an extremely popular game fish species among anglers.Bethune J (1993). 'Bethune on Bass'. Simon & Schuster Australia, East Roseville, NSW, Australia. 93 pages.Lewers D (1995). 'Fabulous bass and how to catch them'. Horwitz, St Leonards, NSW, Australia. 192 pages. The species was simp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Maccullochella
''Maccullochella'' is a genus of large Australian predatory freshwater fish within the family Percichthyidae. The genus ''Maccullochella'' was named after an early Australian fish researcher with the surname ''McCulloch''. The ''Maccullochella'' species are called 'cod' in the vernacular. At the time of European settlement of Australia, members of the genus ''Maccullochella'' dominated the Murray-Darling river system ( Murray cod, ''M. peelii'', and trout cod, ''M. macquariensis'') and 4 East Coast river systems (eastern freshwater cod, ''M. ikei'', of the Clarence and Richmond Rivers, Brisbane River cod, ''Maccullochella'' sp., and Mary River cod, ''M. mariensis''). As large, long-lived, top-order predators with delayed sexual maturity and relatively low fecundity (fertility) ''Maccullochella'' species are extremely vulnerable to overfishing, siltation and other forms of habitat degradation, and river regulation by dams and weirs that alter river environments and negatively af ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
MtDNA
Mitochondrial DNA (mtDNA or mDNA) is the DNA located in mitochondria, cellular organelles within eukaryotic cells that convert chemical energy from food into a form that cells can use, such as adenosine triphosphate (ATP). Mitochondrial DNA is only a small portion of the DNA in a eukaryotic cell; most of the DNA can be found in the cell nucleus and, in plants and algae, also in plastids such as chloroplasts. Human mitochondrial DNA was the first significant part of the human genome to be sequenced. This sequencing revealed that the human mtDNA includes 16,569 base pairs and encodes 13 proteins. Since animal mtDNA evolves faster than nuclear genetic markers, it represents a mainstay of phylogenetics and evolutionary biology. It also permits an examination of the relatedness of populations, and so has become important in anthropology and biogeography. Origin Nuclear and mitochondrial DNA are thought to be of separate evolutionary origin, with the mtDNA being derived from t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lates Calcarifer
The barramundi (''Lates calcarifer'') or Asian sea bass, 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. Origin of name Barramundi is a loanword from an Australian Aboriginal language of the Rockhampton area in Queensland meaning "large-scaled river fish". Originally, the name barramundi referred to ''Scleropages leichardti'' and ''Scleropages jardinii''. However, the name was appropriated for marketing reasons during the 1980s, a decision that has aided in raising the profile of this fish significantly. ''L. calcarifer'' is broadly referred to as Asian seabass by the international scientific community, but is also known as Australian seabass. Description This species has an elongated body form with a large, slightly oblique mouth and an upper jaw extending behind the eye. The lower edge of th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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