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Northern Pacific Seastar In Australia
The Northern Pacific seastar (''Asterias amurensis'') is an invasive species in Australia. Background This seastar is native to the coasts of northern China, North Korea, South Korea, Russia and Japan, and distribution of this species into other countries has increased. It is on the Invasive Species Specialist Group list of the world's 100 worst invasive species. They can be transmitted to waters around the world via seawater in live fish trade, via recreational boats, in ballast water, and on the hulls of ships. The species prefers waters temperatures of 7°C to 10°C, but it has adapted to Australian waters of around 22°C, and usually found in shallow waters of protected coasts. It is able to tolerate a wide range of temperature and salinity, so is frequently found in estuaries and on muddy, sandy or rocky sheltered areas of intertidal zones. Detection, habitat and behaviour in Australia ''Asterias amurensis'' was first seen in Tasmanian coastal waters in 1986. Their pr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Banks Strait
The Clarke Island (also known by its Indigenous name of ''Lungtalanana Island''), part of the Furneaux Group, is an island in Bass Strait, south of Cape Barren Island, about off the northeast coast of Tasmania, Australia. Banks Strait separates the island from Cape Portland on the mainland. Off its west coast lies the shipwreck of ''HMS Litherland'', which sank in 1853 and was discovered in 1983. Clarke Island is Tasmania's eighth largest island. History Clarke Island/Lungtalanana was uninhabited prior to European settlement. ''Sydney Cove'' ran aground between Preservation Island and Rum Island on 28 February 1797.Nash, M.Maritime Archaeology Monograph and Reports Series No.2 - Investigation of a Survivors Camp from the Sydney Cove Shipwreck." Master of Maritime Archaeology Thesis. Department of Archaeology, Flinders University, South Australia. 2004. Accessed 30 December 2009. A party of seventeen men set off on 28 February 1787 in the ship's longboat to reach help at Port ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bivalve
Bivalvia (), in previous centuries referred to as the Lamellibranchiata and Pelecypoda, is a class of marine and freshwater molluscs that have laterally compressed bodies enclosed by a shell consisting of two hinged parts. As a group, bivalves have no head and they lack some usual molluscan organs, like the radula and the odontophore. They include the clams, oysters, cockles, mussels, scallops, and numerous other families that live in saltwater, as well as a number of families that live in freshwater. The majority are filter feeders. The gills have evolved into ctenidia, specialised organs for feeding and breathing. Most bivalves bury themselves in sediment, where they are relatively safe from predation. Others lie on the sea floor or attach themselves to rocks or other hard surfaces. Some bivalves, such as the scallops and file shells, can swim. The shipworms bore into wood, clay, or stone and live inside these substances. The shell of a bivalve is composed of calc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spawning
Spawn is the eggs and sperm released or deposited into water by aquatic animals. As a verb, ''to spawn'' refers to the process of releasing the eggs and sperm, and the act of both sexes is called spawning. Most aquatic animals, except for aquatic mammals and reptiles, reproduce through the process of spawning. Spawn consists of the reproductive cells (gametes) of many aquatic animals, some of which will become fertilized and produce offspring. The process of spawning typically involves females releasing ova (unfertilized eggs) into the water, often in large quantities, while males simultaneously or sequentially release spermatozoa (milt) to fertilize the eggs. Most fish reproduce by spawning, as do most other aquatic animals, including crustaceans such as crabs and shrimps, molluscs such as oysters and squid, echinoderms such as sea urchins and sea cucumbers, amphibians such as frogs and newts, aquatic insects such as mayflies and mosquitoes and corals, which are actually small ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gippsland Lakes
The Gippsland Lakes are a network of coastal lakes, marshes and lagoons in East Gippsland, Victoria, Australia covering an overall area of about between the rural towns of Lakes Entrance, Bairnsdale and Sale. The largest of the lakes are Lake Wellington (Gunai language: ''Murla''), Lake King (Gunai: ''Ngarrang'') and Lake Victoria (Gunai: ''Toonallook''). The lakes are collectively fed by the Avon, Thomson, Latrobe, Mitchell, Nicholson and Tambo Rivers, and drain into the Bass Strait through a short canal about southwest of Lakes Entrance town centre. History The Gippsland Lakes were formed by two principal processes. The first is river delta alluvial deposition of sediment brought in by the rivers which flow into the lakes. Silt deposited by this process forms into long jetties which can run many kilometres into a lake, as exemplified by the Mitchell River silt jetties that run into Lake King. The second process is the action of sea current in Bass Strait which creat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tidal River, Victoria
Tidal River is a locality in Wilsons Promontory National Park, Wilsons Promontory, Victoria, Australia. It contains the main park administration and service centres as well as a permanent camping ground that takes its name from the Tidal River, which flows past the camping ground to the north. History Tidal River was originally established as an army commando training base during World War Two, operating from 1940 to 1942. At the end of the war, the previous National Park ranger station, chalet and camping area at Darby River was in such poor condition that it was not returned to use, but instead, remaining army buildings at Tidal River were adapted and reused for staff and visitor accommodation. In about 1950 the former Darby River ranger's cottage was relocated to Tidal River, leaving the Tidal River and Wilsons Promontory Lighthouse the only permanently inhabited parts of the park. The campground and facilities Tidal River is the main location for accommodation and camping ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Waratah Bay, Victoria
Waratah Bay is a town in the South Gippsland region of Victoria, Australia, on the shore of Waratah Bay. It is home to around 300 people, of whom 56 are permanent residents. 2016 Census Sixteen or 16 may refer to: *16 (number), the natural number following 15 and preceding 17 *one of the years 16 BC, AD 16, 1916, 2016 Films * ''Pathinaaru'' or ''Sixteen'', a 2010 Tamil film * ''Sixteen'' (1943 film), a 1943 Argentine film dir ... The town is named after the bay which was named after a ship the Waratah which anchored here for repairs when damaged. A Post Office named Waratah Bay opened on 10 August 1885, but was at nearby Walkerville and was renamed as such in 1892. References Coastal towns in Victoria (Australia) Towns in Victoria (Australia) Shire of South Gippsland {{Gippsland-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anderson Inlet
Anderson Inlet (Boonwurrung: ''Toluncan''), sometimes incorrectly referred to as Andersons Inlet, is a shallow and dynamic estuary in South Gippsland, Victoria, Australia where the Tarwin River enters Bass Strait. It forms a almost enclosed bay next to the town of Inverloch, for which it provides a popular and protected beach. At low tide its intertidal mudflats provide important feeding habitat for migratory waders. It is also an important area for recreational fishing. It is named after Samuel Anderson pioneer explorer the first European to settle in the area. Tourism Inverloch is an important tourist town, with visitor numbers swelling in the summer months due to the coastal lifestyle and proximity to Melbourne. Anderson Inlet's popularity is hinged on the almost-enclosed bay, making it a protected beach with safe swimming. At low tide the surf beach can be accessed on foot around the western headland. Anderson Inlet is also a popular recreational boating area with a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
San Remo, Victoria
San Remo is a town in southern Victoria, Australia in the Gippsland region. Formed as a fishing village, its economy is now largely based on tourism. It is also notable as the town on the mainland end of the Phillip Island Bridge to Phillip Island. At the , San Remo had a population of 1,700. It is located at the western tip of the Anderson Peninsula (Victoria), Anderson Peninsula, 122 km south-east of Melbourne via the South Gippsland Highway, near Kilcunda and opposite Newhaven, Victoria, Newhaven on Phillip Island. History The area around what is now San Remo was used for many centuries by the Bunurong people who occupied an area of the Mornington Peninsula, of the Kulin nation. George Bass explored the coast and discovered the strait separating the mainland and Van Diemen's land, together with the bay he named Western Port. Sealers frequented the coast and Islands in the 1820s before Europeans settled the coast. Samuel Anderson (Australian settler), Samuel Anderson ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Victoria, Australia
Victoria is a state in southeastern Australia. It is the second-smallest state with a land area of , the second most populated state (after New South Wales) with a population of over 6.5 million, and the most densely populated state in Australia (28 per km2). Victoria is bordered by New South Wales to the north and South Australia to the west, and is bounded by the Bass Strait to the south (with the exception of a small land border with Tasmania located along Boundary Islet), the Great Australian Bight portion of the Southern Ocean to the southwest, and the Tasman Sea (a marginal sea of the South Pacific Ocean) to the southeast. The state encompasses a range of climates and geographical features from its temperate coastal and central regions to the Victorian Alps in the northeast and the semi-arid north-west. The majority of the Victorian population is concentrated in the central-south area surrounding Port Phillip Bay, and in particular within the metropolitan area ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Port Philip Bay
Port Phillip ( Kulin: ''Narm-Narm'') or Port Phillip Bay is a horsehead-shaped enclosed bay on the central coast of southern Victoria, Australia. The bay opens into the Bass Strait via a short, narrow channel known as The Rip, and is completely surrounded by localities of Victoria's two largest cities — metropolitan Greater Melbourne in the bay's main eastern portion north of the Mornington Peninsula, and the city of Greater Geelong in the much smaller western portion (known as the Corio Bay) north of the Bellarine Peninsula. Geographically, the bay covers and the shore stretches roughly , with the volume of water around . Most of the bay is navigable, although it is extremely shallow for its size — the deepest portion is only and half the bay is shallower than . Its waters and coast are home to seals, whales, dolphins, corals and many kinds of seabirds and migratory waders. Before European settlement, the area around Port Phillip was divided between the territori ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Derwent Estuary
The River Derwent is a river located in Tasmania, Australia. It is also known by the palawa kani name timtumili minanya. The river rises in the state's Central Highlands at Lake St Clair, and descends more than over a distance of more than , flowing through Hobart, the state's capital city, before emptying into Storm Bay and flowing into the Tasman Sea. The banks of the Derwent were once covered by forests and occupied by Aboriginal Tasmanians. European settlers farmed the area and during the 20th century many dams were built on its tributaries for the generation of hydro-electricity. Agriculture, forestry, hydropower generation and fish hatcheries dominate catchment land use. The Derwent is also an important source of water for irrigation and water supply. Most of Hobart's water supply is taken from the lower River Derwent. Nearly 40% of Tasmania's population lives around the estuary's margins and the Derwent is widely used for recreation, boating, recreational fishing, mar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
