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Galaxiella Munda
''Galaxiella munda'' is a species of fish in the family Galaxiidae. It is endemic to inland waters of southwestern Australia, and known as the Western mud minnow. In 1999 the Mud Minnow was not included in the list of threatened species under the Environment Protection and Biodiversity Conservation Act, but is listed as Endangered on the IUCN Red List. Description This species has a maximum length of . The Mud Minnow has an elongated scaleless body, a white belly and a grey-brown back. A distinctive broad brown stripe starts from behind the eye and ends tailfins base. The fish has a one-year life-cycle. A number of informal names exist for this species, galaxias, the Western dwarf galaxias, and western mud minnow. The name mud minnow also refers to the family Lepidogalaxiidae, while swan galaxias can refer to either ''Galaxiella munda'' or the ''Galaxias ''Galaxias'' is a genus of small freshwater fish in the family (biology), family Galaxiidae, and are frequently referr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bob McDowall
Robert (Bob) Montgomery McDowall (15 September 1939 – 20 February 2011) was one of New Zealand's most prominent freshwater ichthyologists. Biography McDowall was born on 15 September 1939, the son of dairy scientist Frederick Henry McDowall and entomologist Grace Edith Wall. He attended Palmerston North Boys' High School and went on to study for a BSc at Victoria University in 1958. Despite only receiving a C pass in Zoology, he was accepted into the graduate program where he completed an MSc thesis on the biology of the redfin bully. In 1963 he joined the Fisheries Division of the Marine Department of the Department of Scientific and Industrial Research. At that time, the main laboratories of the Marine Department were housed on the ground floor of the old Wellington City morgue - which McDowall described as an "unhappy and "exceedingly primitive' place with inadequate power and heating. McDowall's dissatisfaction at the Fisheries Division reached Barry Fell, formerly a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fish
Fish are aquatic, craniate, gill-bearing animals that lack limbs with digits. Included in this definition are the living hagfish, lampreys, and cartilaginous and bony fish as well as various extinct related groups. Approximately 95% of living fish species are ray-finned fish, belonging to the class Actinopterygii, with around 99% of those being teleosts. The earliest organisms that can be classified as fish were soft-bodied chordates that first appeared during the Cambrian period. Although they lacked a true spine, they possessed notochords which allowed them to be more agile than their invertebrate counterparts. Fish would continue to evolve through the Paleozoic era, diversifying into a wide variety of forms. Many fish of the Paleozoic developed external armor that protected them from predators. The first fish with jaws appeared in the Silurian period, after which many (such as sharks) became formidable marine predators rather than just the prey of arthropods. Mos ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Galaxiidae
The Galaxiidae are a family of mostly small freshwater fish in the Southern Hemisphere. The majority live in Southern Australia or New Zealand, but some are found in South Africa, southern South America, Lord Howe Island, New Caledonia, and the Falkland Islands. One galaxiid species, the common galaxias (''Galaxias maculatus''), is probably the most widely naturally distributed freshwater fish in the Southern Hemisphere. They are coolwater species, found in temperate latitudes, with only one species known from subtropical habitats. Many specialise in living in cold, high-altitude upland rivers, streams, and lakes. Some galaxiids live in fresh water all their lives, but many have a partially marine lifecycle. In these cases, larvae are hatched in a river, but are washed downstream to the ocean, later returning to rivers as juveniles to complete their development to full adulthood. This pattern differs from that of salmon, which only return to fresh water to breed, and is descr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Endemism
Endemism is the state of a species being found in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also found elsewhere. For example, the Cape sugarbird is found exclusively in southwestern South Africa and is therefore said to be ''endemic'' to that particular part of the world. An endemic species can be also be referred to as an ''endemism'' or in scientific literature as an ''endemite''. For example '' Cytisus aeolicus'' is an endemite of the Italian flora. '' Adzharia renschi'' was once believed to be an endemite of the Caucasus, but it was later discovered to be a non-indigenous species from South America belonging to a different genus. The extreme opposite of an endemic species is one with a cosmopolitan distribution, having a global or widespread range. A rare alternative term for a species that is endemic is "precinctive", which applies to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Southwest Australia
Southwest Australia is a biogeographic region in Western Australia. It includes the Mediterranean-climate area of southwestern Australia, which is home to a diverse and distinctive flora and fauna. The region is also known as the Southwest Australia Global Diversity Hotspot, as well as Kwongan. Geography The region includes the Mediterranean forests, woodlands, and scrub ecoregions of Western Australia. The region covers 356,717 km2, consisting of a broad coastal plain 20-120 kilometres wide, transitioning to gently undulating uplands made up of weathered granite, gneiss and laterite. Bluff Knoll in the Stirling Range is the highest peak in the region, at 1,099 metres (3,606 ft) elevation. Desert and xeric shrublands lie to the north and east across the centre of Australia, separating Southwest Australia from the other Mediterranean and humid-climate regions of the continent. Climate The region has a wet-winter, dry-summer Mediterranean climate, one of five such regio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
IUCN Red List
The International Union for Conservation of Nature (IUCN) Red List of Threatened Species, also known as the IUCN Red List or Red Data Book, founded in 1964, is the world's most comprehensive inventory of the global conservation status of biological species. It uses a set of precise criteria to evaluate the extinction risk of thousands of species and subspecies. These criteria are relevant to all species and all regions of the world. With its strong scientific base, the IUCN Red List is recognized as the most authoritative guide to the status of biological diversity. A series of Regional Red Lists are produced by countries or organizations, which assess the risk of extinction to species within a political management unit. The aim of the IUCN Red List is to convey the urgency of conservation issues to the public and policy makers, as well as help the international community to reduce species extinction. According to IUCN the formally stated goals of the Red List are to provi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lepidogalaxiidae
''Lepidogalaxias salamandroides'' is a species of small fish of Western Australia. It is the only member of the family Lepidogalaxiidae and genus ''Lepidogalaxias''. Common names for this fish include salamanderfish and Shannon mudminnow. Although it is not a lungfish, it resembles lungfish in several respects, including its ability to survive dry seasons by burrowing into the sand. It is on the IUCN Red List as Endangered. Morphology ''Lepidogalaxias salamandroides'' is small with females measuring up to 7 cm in length. This species has a slender, elongate and cylindrical body. The colour is brownish-green on the upper parts, silver-speckled and blotched on the sides, very pale below, and the fin membranes are transparent. The reddish eyes are fixed, but the fish is able to move its neck in any direction. Biology The salamaderfish spawn in winter when water levels are highest. Females produce 100–400 eggs with a diameter of 1.1–1.3mm, which hatch into bottom-feeder ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Galaxias
''Galaxias'' is a genus of small freshwater fish in the family (biology), family Galaxiidae, and are frequently referred to as the galaxiids. These highly adaptable fish are typically found at temperate latitudes across the Southern Hemisphere. Galaxiids are fish scale, scaleless and somewhat tubular in body form, ranging from very slender to quite bulky. They are somewhat torpedo-shaped, with the dorsal fin, dorsal and anal fins positioned close to the tail. They are generally small, with typical adults ranging between in total length, with some stocky species attaining around . The largest, ''Galaxias argenteus'', has been recorded at , although is a more typical adult length. Species The 46 recognized species in this genus are: * ''Galaxias aequipinnis'' Tarmo Ain Raadik, Raadik, 2014 (East Gippsland Galaxias) * ''Galaxias anomalus'' Gerald Stokell, Stokell, 1959 (Roundhead Galaxias) * ''Galaxias arcanus'' Raadik, 2014 (Riffle Galaxias) * ''Galaxias argenteus'' Johann Fri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Galaxias Fontanus
''Galaxias fontanus'', the Swan galaxias, is a species of fish in the family Galaxiidae. It is endemic to eastern Tasmania, Australia. The brownish-olive fish is only found in the Trout-free headwaters of the Swan and Macquarie River catchments. The streams occupied by the species have a low gradient and shallow waters. Natural populations are very small and fragmented, however the species has been successfully introduced into other predator-free streams. The fish ranges from 7cm to 13cm and can weigh up to 8 grams. Swan galaxias are carnivores and feed on aquatic and terrestrial insects. The fish have a spawning period is an extended period of time of 3 months within the spring season (typically August and October). The number of eggs that the Swan galaxias lay range from 150 to 550 eggs and have a diameter between 2.2 to 2.5mm. It is listed as Endangered on the IUCN Red List and Environment Protection and Biodiversity Conservation Act 1999. The primary threat to the Swa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Galaxiella
''Galaxiella'' is a genus of Australian fish of the family Galaxiidae. Species There are currently 4 recognized species in this genus: * ''Galaxiella munda ''Galaxiella munda'' is a species of fish in the family Galaxiidae. It is endemic to inland waters of southwestern Australia, and known as the Western mud minnow. In 1999 the Mud Minnow was not included in the list of threatened species under t ...'' McDowall, 1978 (Mud minnow) * '' Galaxiella nigrostriata'' ( Shipway, 1953) (Black-stripe minnow) * '' Galaxiella pusilla'' ( Mack, 1936) (Dwarf galaxias) * '' Galaxiella toourtkoourt'' R. A. Coleman & Raadik, 2015 (Little galaxias) References * Freshwater fish genera {{Osmeriformes-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Freshwater Fish Of Western Australia
Fresh water or freshwater is any naturally occurring liquid or frozen water containing low concentrations of dissolved salts and other total dissolved solids. Although the term specifically excludes seawater and brackish water, it does include non- salty mineral-rich waters such as chalybeate springs. Fresh water may encompass frozen and meltwater in ice sheets, ice caps, glaciers, snowfields and icebergs, natural precipitations such as rainfall, snowfall, hail/ sleet and graupel, and surface runoffs that form inland bodies of water such as wetlands, ponds, lakes, rivers, streams, as well as groundwater contained in aquifers, subterranean rivers and lakes. Fresh water is the water resource that is of the most and immediate use to humans. Water is critical to the survival of all living organisms. Many organisms can thrive on salt water, but the great majority of higher plants and most insects, amphibians, reptiles, mammals and birds need fresh water to survive. Fresh water is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Near Threatened Animals
NEAR or Near may refer to: People * Thomas J. Near, US evolutionary ichthyologist * Near, a developer who created the higan emulator Science, mathematics, technology, biology, and medicine * National Emergency Alarm Repeater (NEAR), a former alarm device to warn civilians of a foreign nuclear attack on the United States * National Emergency Airway Registry (NEAR), a patient registry for intubations in the United States * Nicking enzyme amplification reaction (NEAR), a method of DNA amplification * NEAR Shoemaker, a spacecraft that studied the near-Earth asteroid Eros * Nearness or proximity space *"Near", a city browser by NearGlobal Television, film, music, and books * Near (Death Note), ''Nate River'', a character Other uses * Near v. Minnesota, a U.S. press freedom Supreme Court decision * New England Auto Racers Hall of Fame The New England Auto Racers Hall of Fame is a hall of fame for racing-related people in the New England region of the United States. NEAR was ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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