|
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 Argenteus
''Galaxias'' is a genus of small freshwater fish in the 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 scaleless and somewhat tubular in body form, ranging from very slender to quite bulky. They are somewhat torpedo-shaped, with the 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'' Raadik, 2014 (East Gippsland Galaxias) * '' Galaxias anomalus'' Stokell, 1959 (Roundhead Galaxias) * ''Galaxias arcanus'' Raadik, 2014 (Riffle Galaxias) * ''Galaxias argenteus'' Gmelin, 1789 (Giant Kōkopu) * ''Galaxias auratus'' Johnston, 1883 (Golden Galax ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Galaxias Fasciatus
''Galaxias'' is a genus of small freshwater fish in the 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 scaleless and somewhat tubular in body form, ranging from very slender to quite bulky. They are somewhat torpedo-shaped, with the 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'' Raadik, 2014 (East Gippsland Galaxias) * '' Galaxias anomalus'' Stokell, 1959 (Roundhead Galaxias) * '' Galaxias arcanus'' Raadik, 2014 (Riffle Galaxias) * ''Galaxias argenteus'' Gmelin, 1789 (Giant Kōkopu) * '' Galaxias auratus'' Johnston, 1883 (Golden ... [...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] |
Galaxias Auratus
The Golden galaxias (''Galaxias auratus'') is an endangered species of landlocked galaxiid fish belonging to the genus ''Galaxias''. It is endemic to Lakes Crescent, Sorell, and their associated waterways located in central Tasmania, Australia. Description The Golden galaxias are small scaleless salmoniform fish that typically grows from 140mm to a maximum of 240mm in length (tip of snout to tail). It has a thickset body with a long head, slender snout, and the characteristic cylindrical trunk shared by other fish in the family Galaxiidae. Its namesake comes from the distinctive golden-amber colouration and dark olive-green circular spots on its dorsal/upper surface; plus the dark ovoid markings on its sides. It has a silvery-grey colouration on its ventral/under surface postulated as a form of countershading camouflage. The fins are amber to light orange in colour with black margins. Phylogenetic relation to other Galaxias The family Galaxiidae of which ''Galaxias auratus'' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Galaxias Eldoni
Eldon's galaxias (''Galaxias eldoni'') is an endangered galaxiid fish endemic to New Zealand. One of several fishes in the genus ''Galaxias'' found in Central Otago, it has a very small home range and is at risk of being driven to extinction by trout introduced for recreational fishing. Taxonomy Eldon's galaxias was described in 1997 by New Zealand freshwater ichthyologist Bob McDowall from specimens collected in 1995 and 1996. It is part of the '' Galaxias vulgaris'' species complex, and differs from '' Galaxias pullus'', another new species McDowall had found in the same area genetically and by its colour pattern: irregular stripes that continue across its back. The name recognises the ichthyologist G. A. (Tony) Eldon, who helped collect specimens and had retired not long before McDowall described this species. Description ''Galaxias eldoni'' is an elongated, deep-bodied ''Galaxias'', usually 80 mm in length (although very large individuals can reach 155 mm). Its s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Galaxias Olidus
''Galaxias olidus'', the mountain galaxias, is a species of freshwater galaxiid fish widely found in southeastern Australia. Description As for other members of the species complex, although ''Galaxias olidus'' exhibits a greater range of characteristics than other members of the group. The fish has a long tubular body, commonly to . The body's upper and lower surfaces are gently and evenly curved with the upper surface partly flattened before the pelvic fins. Head medium size and noticeably wider than deep and slightly wedge-shaped from the side. Mouth of medium length with the tip of the upper lip usually level with the middle of the eye then extending down and back towards the belly to a point about even with the middle of the eye. Mountain galaxias are very variable in base colour and markings throughout their range, but within individual populations, less so. Body mostly tan, light brown to brown or olive, occasionally orange-brown. Base colour extends over head and s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Galaxias Brevipinnis
The climbing galaxias or kōaro (''Galaxias brevipinnis'') is a fish of the family Galaxiidae found in Australia, New Zealand, and nearby islands. The name climbing galaxias is used in Australia, and koaro or kōaro in New Zealand. Further vernacular names include short-finned galaxias, broad-finned galaxias, Cox's mountain galaxias, and Pieman galaxias. Appearance The climbing galaxias is unlikely to be confused with the other diadromous whitebait species because of its shape. It is elongated and slender, shaped almost like a tube. The sides and back are covered in a variable pattern of golden blotches and bands that gleam and glitter in the sun, making the climbing galaxias an attractive fish. Their maximum size is around 29 cm, but they commonly reach 16–18 cm. Lifestyle These fish live a basically benthic lifestyle and in most respects behave like the common galaxias, a closely related galaxiid. They inhabit mainly clear streams, often deeply shaded and relati ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Galaxias Cobitinis
The lowland longjaw galaxias (''Galaxias cobitinis'') is a galaxiid of the genus ''Galaxias'', found only in the South Island of New Zealand, in the Kauru River, a tributary of the Kakanui River in north Otago, and in parts of the upper Waitaki catchment. It grows to a length of up to 7 cm. Lowland longjaw galaxias are slender and elongate, having colouration consisting of spots and indistinct bands of various shades of brown and grey. The single dorsal and anal fins are about two thirds of the way along the body. Like all galaxiids it lacks scales and has a thick, leathery skin covered with mucus. The lower jaw is forward of the upper. Conservation status In 2018 the Department of Conservation An environmental ministry is a national or subnational government agency politically responsible for the environment and/or natural resources. Various other names are commonly used to identify such agencies, such as Ministry of the Environment ... classified the low ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Galaxias Arcanus
''Galaxias arcanus'', the riffle galaxias, is a galaxiid of the genus ''Galaxias'', a member of the Mountain Galaxias species complex group of freshwater fish, found in Australia. Description ''Galaxias arcanus'' has the typical Galaxias body form, with a long tubular body and a maximum recorded standard length (SL) of , typically . Fins have slightly fleshy bases, although less so in the paired fins, and are thin, moderately long and are generally paddle shaped. The pelvic fins are inserted about midway along the SL, with the dorsal fin somewhat further back with the anal fin starting about even with or slightly before the rear end of the base of the dorsal fin. The caudal (tail) fin is moderately lobed and somewhat shorter than the caudal peduncle. Colour is overall beige to olive-brown becoming silvery white on the under sides. The main colouration is overlain with large blotchy darker makings usually merging into uneven bands, often overlaid with tiny dark grey spots. T ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Galaxias Brevissimus
''Galaxias brevissimus'', the short-tail galaxias, is a galaxiid of the genus ''Galaxias'', a member of the Mountain Galaxias species complex group of freshwater fish, found in Australia. Description ''Galaxias brevissimus'' is a fish with a typical Galaxiid body form, with a long and tubular body, but distinguishable from other members of the family by a short caudal fin (tail) and caudal peduncle, hence the common name. Size is commonly to , maximum recorded is . The colouration is generally a mottled brown on the upper surface and sides above lateral line, with this pattern continuing over the head and snout. The colouration is lighter below the lateral line becoming light brown or cream on the belly. Distribution This species has only been recorded from a creek in the very upper reaches of the coastal Tuross River catchment in south eastern New South Wales. The location is at an elevation of AMSL about downstream from the source which is itself AMSL. The downstream di ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Galaxias Aequipinnis
''Galaxias aequipinnis'', the East Gippsland galaxias, is a galaxiid of the genus ''Galaxias'', a member of the Mountain Galaxias species complex group of freshwater fish, found in Australia. Description A long tubular fish to in length, commonly . Compared to other members of the ''G.olidus'' species complex ''G.aequipinnis'' is somewhat stout with a long head and snout. The lower jaw is shorter than the upper. Colour is brown on the sides of the head and snout extending to the upper surfaces and on the sides above the lateral line becoming lighter to cream on the lower sides and silvery white on the belly. Sides overlain with dark irregular marks, with some more or less joining together to form uneven vertical bands. Distribution With a very restricted range, ''G.aequipinnis'' has been found at elevations of AMSL in the Arte River and Little Arte River which are tributaries of the Goolengook River within the Bemm River catchment in East Gippsland. Habitat Small to m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Galaxias Divergens
''Galaxias divergens'', common name dwarf galaxias, is a galaxiid of the genus ''Galaxias'', found only in the lower North Island and upper South Island of New Zealand. It grows to a length of up to 9 cm. The single dorsal and anal fins are about two thirds of the way along the body. Like all galaxiids it lacks scales and has a thick, leathery skin covered with mucus. The dwarf galaxias has six pelvic fin rays, which distinguishes it from most other galaxiids which have only five. Spawning occurs from March to May and also from October to November. They live on a variety of aquatic insects, especially mayflies and midges. They are non-diadromous and therefore do not have a marine phase and are not part of the whitebait Whitebait is a collective term for the immature fry of fish, typically between long. Such young fish often travel together in schools along coasts, and move into estuaries and sometimes up rivers where they can be easily caught using fine- . ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
.jpg "Click for more on -> Galaxias Eldoni")
_from_the_Momona_Stream%2C_Taranaki._Photo_by_Stella_McQueen.jpg "Click for more on -> Galaxias Brevipinnis")
