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Mosquitofish In Australia
The eastern mosquitofish (''Gambusia holbrooki'') was introduced to Australia in 1925, and had spread from the northeast coasts to New South Wales, southern Australia, and parts of Western Australia by 1934.Kitching, R.l., ed. ''The Ecology of Exotic Animals''. Milton: John Wiley and Sons, 1986. 7-25. By the 21st century, known populations of wild mosquitofish had occurred in every state and territory except the Northern Territory, found in swamps, lakes, billabongs, thermal springs, salt lakes, and ornamental ponds. Mosquitofish are considered a noxious pest, especially in New South Wales and Queensland, and it is illegal to release them into the wild or transport them live into any of the states or territories. Mosquitofish were introduced by military and local councils to control mosquito populations; however, there has been no evidence that Gambusia has had any effect in controlling mosquito populations or mosquito-borne diseases. Studies have shown that Gambusia can suffer ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mosquitofish Victoria Park Pond
The western Mosquitofish (''Gambusia affinis'') is a North American freshwater fish, also known commonly, if ambiguously, as simply Mosquitofish or by its generic name, ''Gambusia'', or by the common name gambezi. Its sister species, the eastern mosquitofish ('' Gambusia holbrooki'') is also referred to by these names. Mosquitofish are small in comparison to many other freshwater fish, with females reaching a maximum length of and males a maximum length of . The female can be distinguished from the male by her larger size and a gravid spot at the posterior of her abdomen. The name "Mosquitofish" was given because the fish eats mosquito larvae, and has been used more than any other fishes for the biological control of mosquitoes. Gambusia typically eat zooplankton, beetles, mayflies, caddisflies, mites, and other invertebrates; mosquito larvae make up only a small portion of their diet. Mosquitofish were introduced directly into ecosystems in many parts of the world as a bi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
55th Parallel North
The 55th parallel north is a circle of latitude that is 55 degrees north of the Earth's equatorial plane. It crosses Europe, Asia, the Pacific Ocean, North America, and the Atlantic Ocean. At this latitude the sun is visible for 17 hours, 22 minutes during the summer solstice and 7 hours, 10 minutes during the winter solstice. This latitude also roughly corresponds to the minimum latitude in which nautical twilight can last all night near the summer solstice. Around the world Starting at the Prime Meridian and heading eastwards, the parallel 55° north passes through: : Notable cities and towns on 55°N *Chelyabinsk, Chelyabinsk Oblast, Russia *Omsk, Omsk Oblast, Russia *Novosibirsk, Novosibirsk Oblast, Russia *Derry, Northern Ireland, UK *Newcastle upon Tyne, England, UK *South Shields, England, UK. *Thompson, Manitoba, CA *Grande Prairie, Alberta, Canada Use as a boundary The 55th parallel serves as the southern boundary of Nunavik territory in Quebec. See also *54th pa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Edgbaston Station
Edgbaston Reserve, formerly Edgbaston Station, is a nature reserve in central Queensland, Australia, north-east of Longreach. It lies in the upper catchment of Pelican Creek, which flows into the Thomson River and, ultimately, into Lake Eyre. It lies within the Great Artesian Basin and is notable for its many artesian springs and their plants and animals. It is owned and managed by Bush Heritage Australia (BHA), by which it was purchased in 2008. The reserve is within the Bush Heritage anchor region, the Queensland Uplands and Brigalow Belt. History Edgbaston was a pastoral lease until acquisition by BHA. Purchase of the property was assisted by a contribution from the Australian Government's Maintaining Australia's Biodiversity Hotspots program. Landscape As well as the artesian springs and their associated freshwater wetlands, the reserve's landscape includes grassy eucalypt woodlands and rocky escarpments. Fauna Edgbaston's springs contain two nationally threatened ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Threatened Species Protection Act 1995
The ''Threatened Species Protection Act 1995'' (TSP Act), is an act of the Parliament of Tasmania that provides the statute relating to conservation of flora and fauna. Its long title is An Act to provide for the protection and management of threatened native flora and fauna and to enable and promote the conservation of native flora and fauna. It received the royal assent on 14 November 1995. As of 25 November 2020, the TSP Act is administered by the Department of Primary Industries, Parks, Water and Environment (Tasmania) and is the primary legislation for the listing, protection and conservation of threatened native flora and fauna in Tasmania. Threatened species in Tasmania can also be listed on the Environment Protection and Biodiversity Conservation Act 1999, which is the primary national legislation for the protection of threatened species in Australia. The objectives of the TSP Act are to ensure the survival of native flora and fauna as well to encourage, educate and as ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Limnodynastes Ornatus
The ornate burrowing frog (''Platyplectrum ornatum'') is a species of ground frog native to Australia. It was moved to the genus ''Opisthodon'' in 2006, following a major revision of amphibians, and is now classified in the genus ''Platyplectrum''. Description This frog is a relatively small and stubby species, growing no larger than 50 mm. It ranges in colour from grey to brown to yellow, and the dorsal surface patterns vary greatly between specimens. There is usually a butterfly-shaped patch behind the eyes. The dorsum is generally covered with red-tipped warts, and skin folds are present towards the head. The legs and arms are barred or spotted with darker markings. Toes have a slight webbing, while fingers have none. Ecology and behaviour This species distribution ranges from western Sydney to Cape York in Queensland, running along either side of the Great Dividing Range across to Western Australia. It occurs in both wet sclerophyll forest in coastal areas and in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dwarf Inanga
The dwarf inanga (''Galaxias gracilis'') is a galaxiid of the genus ''Galaxias'', found in the North Island of New Zealand. It is a landlocked galaxiid present in only eleven lakes on the west coast of the North Island within 50 km of Dargaville, and in Lake Ototoa on the South Kaipara Harbour, Kaipara Head, where it was introduced in 1986. It can reach a maximum length of around 6.2 cm. References * Listed as Vulnerable (VU A1ce, B1+2 cd, D2 v2.3) * * NIWA June 2006Distribution and conservation status of the dwarf inanga Galaxias gracilis (Teleostei: Galaxiidae) an endemic fish of Northland dune lakesDOC New Zealand non-migratory galaxiid fishes recovery plan 200313Creating and destroying species: the ‘new’ biodiversity and evolutionarily significant units among New Zealand's galaxiid fishes N. Ling1,*, D. M. Gleeson2, K. J. Willis1,†, S. U. Binzegger Galaxias Endemic freshwater fish of New Zealand Taxa named by Bob McDowall Fish described in 1967 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mollusk
Mollusca is the second-largest phylum of invertebrate animals after the Arthropoda, the members of which are known as molluscs or mollusks (). Around 85,000 extant species of molluscs are recognized. The number of fossil species is estimated between 60,000 and 100,000 additional species. The proportion of undescribed species is very high. Many taxa remain poorly studied. Molluscs are the largest marine phylum, comprising about 23% of all the named marine organisms. Numerous molluscs also live in freshwater and terrestrial habitats. They are highly diverse, not just in size and anatomical structure, but also in behaviour and habitat. The phylum is typically divided into 7 or 8 taxonomic classes, of which two are entirely extinct. Cephalopod molluscs, such as squid, cuttlefish, and octopuses, are among the most neurologically advanced of all invertebrates—and either the giant squid or the colossal squid is the largest known invertebrate species. The gas ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Crustacean
Crustaceans (Crustacea, ) form a large, diverse arthropod taxon which includes such animals as decapods, seed shrimp, branchiopods, fish lice, krill, remipedes, isopods, barnacles, copepods, amphipods and mantis shrimp. The crustacean group can be treated as a subphylum under the clade Mandibulata. It is now well accepted that the hexapods emerged deep in the Crustacean group, with the completed group referred to as Pancrustacea. Some crustaceans (Remipedia, Cephalocarida, Branchiopoda) are more closely related to insects and the other hexapods than they are to certain other crustaceans. The 67,000 described species range in size from '' Stygotantulus stocki'' at , to the Japanese spider crab with a leg span of up to and a mass of . Like other arthropods, crustaceans have an exoskeleton, which they moult to grow. They are distinguished from other groups of arthropods, such as insects, myriapods and chelicerates, by the possession of biramous (two-parted) limbs, and by th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Red Finned Blue Eye
Red is the color at the long wavelength end of the visible spectrum of light, next to orange and opposite violet. It has a dominant wavelength of approximately 625–740 nanometres. It is a primary color in the RGB color model and a secondary color (made from magenta and yellow) in the CMYK color model, and is the complementary color of cyan. Reds range from the brilliant yellow-tinged scarlet and vermillion to bluish-red crimson, and vary in shade from the pale red pink to the dark red burgundy. Red pigment made from ochre was one of the first colors used in prehistoric art. The Ancient Egyptians and Mayans colored their faces red in ceremonies; Roman generals had their bodies colored red to celebrate victories. It was also an important color in China, where it was used to color early pottery and later the gates and walls of palaces. In the Renaissance, the brilliant red costumes for the nobility and wealthy were dyed with kermes and cochineal. The 19th century brought ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rotifer
The rotifers (, from the Latin , "wheel", and , "bearing"), commonly called wheel animals or wheel animalcules, make up a phylum (Rotifera ) of microscopic and near-microscopic pseudocoelomate animals. They were first described by Rev. John Harris in 1696, and other forms were described by Antonie van Leeuwenhoek in 1703. Most rotifers are around long (although their size can range from to over ), and are common in freshwater environments throughout the world with a few saltwater species. Some rotifers are free swimming and truly planktonic, others move by inchworming along a substrate, and some are sessile, living inside tubes or gelatinous holdfasts that are attached to a substrate. About 25 species are colonial (e.g., '' Sinantherina semibullata''), either sessile or planktonic. Rotifers are an important part of the freshwater zooplankton, being a major foodsource and with many species also contributing to the decomposition of soil organic matter. Most species of the r ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Backswimmer
Notonectidae is a cosmopolitan family of aquatic insects in the order Hemiptera, commonly called backswimmers because they swim "upside down" (inverted). They are all predators and typically range from in length. They are similar in appearance to Corixidae (water boatmen), but can be separated by differences in their dorsal-ventral coloration, front legs, and predatory behavior. Their dorsum is convex, lightly colored without cross striations. Their front tarsi are not scoop-shaped and their hind legs are fringed for swimming. There are about 350 species in two subfamilies: Notonectinae with seven genera, and Anisopinae with four genera. Members in the former subfamily are often larger than those in the latter. Backswimmers swim on their backs, vigorously paddling with their long, hair-fringed hind legs and attack prey as large as tadpoles and small fish. They can inflict a painful "bite" on a human being, actually a stab with their sharp tubular mouthparts (proboscis). They inh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
