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Mangatangi River
The Mangatangi River, or Mangatangi Stream, originates on the eastern slopes of the Hunua Ranges in New Zealand and flows roughly southwards until it is joined by the Ruaotehuia Stream just north of State Highway 2 between Mangatāwhiri and Maramarua, where it becomes the Maramarua River. ''Mangatangi'' can be translated as ''manga tangi'' to ''stream of weeping,'' or as ''rippling stream'', or ''babbling brook.'' River or stream? The dictionary defines a river as a large natural stream. The Mangatangi is called a ''stream'' by some sources and a ''river'' by others. The New Zealand Geographic Board hasn't given it an official name. The 1:50,000 map shows it as a ''Stream'', but LAWA calls it a ''River'', as does Regional Council in documents on swimming and flow, but a ''Stream'' in its catchment management plan. Other references to ''River'' are 1894 and 1895 requests for a bridgea Ratification Information Bookletand on Te Awa, RNZ, District Council, [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Waverley, Taranaki
Waverley is a town located in the South Taranaki District in New Zealand. It is 44 km northwest of Whanganui. Patea is 17 km to the west, and Waitōtara is 10 km to the southeast. State Highway 3 and the Marton - New Plymouth Line railway run through the town. History and culture Waverley was an important colonial stronghold during the New Zealand Wars of the 1860s, during which time the town was called Wairoa. The town is well known for its farming and thoroughbred stables. The race horse Kiwi was trained in the paddocks of a Waverley sheep farm by owner Snow Lupton and went on to go from last on the final bend to win the 1983 Melbourne Cup. Marae The local Te Wairoa-iti Marae and Maruata meeting house are a meeting place for Ngāti Tai, a hapū of Ngā Rauru Kītahi. Ironsand mining and renewable energy The Waipipi onshore ironsand mine operated near Waverley from 1971 to 1987, producing a total of 15.7 million tonnes of concentrate for export. The Waipip ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geology Of The Waikato-King Country Region
The Waikato and King Country regions of New Zealand are built upon a basement of greywacke rocks, which form many of the hills. Much of the land to the west of the Waikato River and in the King Country to the south has been covered by limestone and sandstone, forming bluffs and a karst landscape. The volcanic cones of Karioi and Pirongia dominate the landscape near Raglan and Kawhia Harbours. To the east, the land has been covered with ignimbrite deposits from the Taupo Volcanic Zone. Large amounts of pumice from the Taupo Volcanic Zone have been deposited in the Waikato Basin and Hauraki Plains. Basement rocks As with most of New Zealand, the basement rocks of the Waikato Region and King Country are composed of greywacke (indurated sandstone, siltstone and mudstone). The Waipa Fault passes north–south through the Waikato-King Country region, from Taupiri, along the Waipā River, and south to near Ohura. It represents a major dividing line between different terranes. Murih ... [...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] |
Cran's Bully
Cran's bully (''Gobiomorphus breviceps'') is a species of fish in the family Eleotridae Eleotridae is a family of fish commonly known as sleeper gobies, with about 34 genera and 180 species. Most species are found in the tropical Indo-Pacific region, but there are also species in subtropical and temperate regions, warmer parts of th ... endemic to New Zealand, where it is only found in fresh waters. This species can reach a length of . References External links Photograph of malePhotograph of female Cran's bully Endemic freshwater fish of New Zealand Cran's bully Cran's bully {{Eleotridae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Watercare Services
Watercare Services (Watercare) is an infrastructure asset management council-controlled organisation (CCO) that manages the drinking water and wastewater services of the Auckland Region of New Zealand. Watercare is registered with the New Zealand Companies Office as Watercare Services Limited, and is 100% owned by Auckland Council. Establishment Watercare Services Ltd was first incorporated in August 1991, and formed as a Local-authority trading enterprise , Local Authority Trading Enterprise in 1992. The drinking water services provider Metrowater, founded in 1997, was integrated into Watercare in 2010. Watercare became a Council-controlled organisation under the Local Government Act 2002 on 1 July 2012. Watercare provides services to properties across the Auckland region with the exception of Papakura, where Veolia Water retails water and wastewater services to homes and businesses under a franchise agreement. Operating model On 28 January 2020, the Minister of Local Governme ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mosquitofish
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 biocon ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brown Trout
The brown trout (''Salmo trutta'') is a European species of salmonid fish that has been widely introduced into suitable environments globally. It includes purely freshwater populations, referred to as the riverine ecotype, ''Salmo trutta'' morpha ''fario'', a lacustrine ecotype, ''S. trutta'' morpha ''lacustris'', also called the lake trout, and anadromous forms known as the sea trout, ''S. trutta'' morpha ''trutta''. The latter migrates to the oceans for much of its life and returns to fresh water only to spawn. Sea trout in Ireland and Britain have many regional names: sewin in Wales, finnock in Scotland, peal in the West Country, mort in North West England, and white trout in Ireland. The lacustrine morph of brown trout is most usually potamodromous, migrating from lakes into rivers or streams to spawn, although evidence indicates some stocks spawn on wind-swept shorelines of lakes. ''S. trutta'' morpha ''fario'' forms stream-resident populations, typically in alpine stre ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rainbow Trout
The rainbow trout (''Oncorhynchus mykiss'') is a species of trout native to cold-water tributaries of the Pacific Ocean in Asia and North America. The steelhead (sometimes called "steelhead trout") is an anadromous (sea-run) form of the coastal rainbow trout or Columbia River redband trout that usually returns to freshwater to spawn after living two to three years in the ocean. Freshwater forms that have been introduced into the Great Lakes and migrate into tributaries to spawn are also called steelhead. Adult freshwater stream rainbow trout average between , while lake-dwelling and anadromous forms may reach . Coloration varies widely based on subspecies, forms, and habitat. Adult fish are distinguished by a broad reddish stripe along the lateral line, from gills to the tail, which is most vivid in breeding males. Wild-caught and hatchery-reared forms of the species have been transplanted and introduced for food or sport in at least 45 countries and every continent except ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gordon Coates
Joseph Gordon Coates (3 February 1878 – 27 May 1943) served as the 21st prime minister of New Zealand from 1925 to 1928. He was the third successive Reform prime minister since 1912. Born in rural Northland, Coates grew up on a cattle run and was bilingual in English and Te Reo Māori, the last New Zealand Prime Minister to be so. Coates took charge on the farm as a young age due to his father's mental illness, before becoming a Member of Parliament in 1911. He maintained a focus on farming issues and stood as an independent candidate. After distinguished service during World War I, he was appointed as Minister of Justice and Postmaster-General in the Reform government of William Massey (1919); he served as Minister of Public Works (1920–26) and Native Affairs (1921–28) and became prime minister in 1925 on Massey's death. Defeated in the elections of 1928, Coates returned to government in 1931 as the key figure in the coalition government of George Forbes. Serving as ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spillway
A spillway is a structure used to provide the controlled release of water downstream from a dam or levee, typically into the riverbed of the dammed river itself. In the United Kingdom, they may be known as overflow channels. Spillways ensure that water does not damage parts of the structure not designed to convey water. Spillways can include floodgates and fuse plugs to regulate water flow and reservoir level. Such features enable a spillway to regulate downstream flow—by releasing water in a controlled manner before the reservoir is full, operators can prevent an unacceptably large release later. Other uses of the term "spillway" include bypasses of dams and outlets of channels used during high water, and outlet channels carved through natural dams such as moraines. Water normally flows over a spillway only during flood periods, when the reservoir has reached its capacity and water continues entering faster than it can be released. In contrast, an intake tower is a structure ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Greywacke
Greywacke or graywacke (German ''grauwacke'', signifying a grey, earthy rock) is a variety of sandstone generally characterized by its hardness, dark color, and poorly sorted angular grains of quartz, feldspar, and small rock fragments or lithic fragments set in a compact, clay-fine matrix. It is a texturally immature sedimentary rock generally found in Paleozoic strata. The larger grains can be sand- to gravel-sized, and matrix materials generally constitute more than 15% of the rock by volume. The term "greywacke" can be confusing, since it can refer to either the immature (rock fragment) aspect of the rock or its fine-grained (clay) component. The origin of greywacke was unknown until turbidity currents and turbidites were understood, since, according to the normal laws of sedimentation, gravel, sand and mud should not be laid down together. Geologists now attribute its formation to submarine avalanches or strong turbidity currents. These actions churn sediment and cause mi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Embankment Dam
An embankment dam is a large artificial dam. It is typically created by the placement and compaction of a complex semi-plastic mound of various compositions of soil or rock. It has a semi-pervious waterproof natural covering for its surface and a dense, impervious core. This makes the dam impervious to surface or seepage erosion. Such a dam is composed of fragmented independent material particles. The friction and interaction of particles binds the particles together into a stable mass rather than by the use of a cementing substance. Types Embankment dams come in two types: the earth-filled dam (also called an earthen dam or terrain dam) made of compacted earth, and the rock-filled dam. A cross-section of an embankment dam shows a shape like a bank, or hill. Most have a central section or core composed of an impermeable material to stop water from seeping through the dam. The core can be of clay, concrete, or asphalt concrete. This type of dam is a good choice for sites wit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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