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Durvillaea Beachcast1
''Durvillaea'' is a genus of large brown algae in the monotypic family Durvillaeaceae. All members of the genus are found in the southern hemisphere, including Australia, New Zealand, South America, and various subantarctic islands. ''Durvillaea'', commonly known as southern bull kelps, occur on rocky, wave-exposed shorelines and provide a habitat for numerous intertidal organisms. Many species exhibit a honeycomb-like structure in their fronds that provides buoyancy, which allows individuals detached from substrates to raft alive at sea, permitting dispersal for hundreds of days over thousands of kilometres. ''Durvillaea'' species have been used for clothing, tools and as a food source by many indigenous cultures throughout the South Pacific, and they continue to play a prominent role in Chilean cuisine. Common name and etymology The common name for ''Durvillaea'' is southern bull kelp, although this is often shortened to bull kelp, which can generate confusion with the North Pa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Durvillaea Antarctica
''Durvillaea antarctica'', also known as ' and ', is a large, robust species of southern bull kelp found on the coasts of Chile, southern New Zealand, and Macquarie Island.Smith, J.M.B. and Bayliss-Smith, T.P. (1998). Kelp-plucking: coastal erosion facilitated by bull-kelp ''Durvillaea antarctica'' at subantarctic Macquarie Island, ''Antarctic Science'' 10 (4), 431–438. . ''D. antarctica'', an alga, does not have air bladders, but floats due to a unique honeycomb structure within the alga's blades, which also helps the kelp avoid being damaged by the strong waves.Maggy WassilieffSeaweed - Bull kelp’s honeycombed structure ''Te Ara - the Encyclopedia of New Zealand'', Ministry of Culture and Heritage. Updated 2 March 2009. Retrieved 9 March 2010. Taxonomy The species was first described in 1822, as ''Fucus antarcticus'', and revised in 1892 as ''Durvillaea antarctica''. The genus name ''Durvillaea'' was given in memory of the French explorer Jules Dumont d'Urville, while the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Long Distance Dispersal
Biological dispersal refers to both the movement of individuals (animals, plants, fungi, bacteria, etc.) from their birth site to their breeding site ('natal dispersal'), as well as the movement from one breeding site to another ('breeding dispersal'). Dispersal is also used to describe the movement of propagules such as seeds and spores. Technically, dispersal is defined as any movement that has the potential to lead to gene flow. The act of dispersal involves three phases: departure, transfer, settlement and there are different fitness costs and benefits associated with each of these phases. Through simply moving from one habitat patch to another, the dispersal of an individual has consequences not only for individual fitness, but also for population dynamics, population genetics, and species distribution. Understanding dispersal and the consequences both for evolutionary strategies at a species level, and for processes at an ecosystem level, requires understanding on the ty ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gribble
A gribble /ˈgɹɪbəl/ (or gribble worm) is any of about 56 species of marine isopod from the family Limnoriidae. They are mostly pale white and small ( long) crustaceans, although ''Limnoria stephenseni'' from subantarctic waters can reach . Classification The term "gribble" was originally assigned to the wood-boring species, especially the first species described from Norway by Jens Rathke in 1799, '' Limnoria lignorum''. The Limnoriidae are now known to include seaweed and seagrass borers, as well as wood borers. Those gribbles able to bore into living marine plants are thought to have evolved from a wood (dead plant) boring species. Ecology Gribbles bore into wood and plant material for ingestion as food. The cellulose of wood is digested, most likely with the aid of cellulases produced by the gribbles themselves. The most destructive species are ''Limnoria lignorum'', ''L. tripunctata'' and ''L. quadripunctata''. Due to dispersal while inhabiting wooden ships, it is uncert ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Parawaldeckia Karaka
''Parawaldeckia'' is a genus of amphipod crustacean in the family, Lysianassidae. and was first described by Thomas Roscoe Rede Stebbing in 1910. The type species is '' Parawaldeckia thomsoni'' (first described in 1906 by Stebbing as ''Nannonyx thomsoni'' ). In Australia species of the genus are found in waters off New South Wales, South Australia, Tasmania, Western Australia, and off Macquarie Island and the Australian Antarctic territory. They are also found off New Zealand, off southern South America, and in subantarctic waters. They are bottom dwelling at depths of 200 metres. The body is segmented and flattened at the side, and there are seven pairs of walking legs at the front and three pairs of small limbs at the back. Species Species accepted by WoRMS (2022) are: *'' Parawaldeckia angusta'' *'' Parawaldeckia dabita'' *'' Parawaldeckia dilkera'' *'' Parawaldeckia hirsuta'' *''Parawaldeckia karaka'' *''Parawaldeckia kidderi ''Parawaldeckia'' is a genus of amphipo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Parawaldeckia Kidderi
''Parawaldeckia'' is a genus of amphipod crustacean in the family, Lysianassidae. and was first described by Thomas Roscoe Rede Stebbing in 1910. The type species is '' Parawaldeckia thomsoni'' (first described in 1906 by Stebbing as ''Nannonyx thomsoni'' ). In Australia species of the genus are found in waters off New South Wales, South Australia, Tasmania, Western Australia, and off Macquarie Island and the Australian Antarctic territory. They are also found off New Zealand, off southern South America, and in subantarctic waters. They are bottom dwelling at depths of 200 metres. The body is segmented and flattened at the side, and there are seven pairs of walking legs at the front and three pairs of small limbs at the back. Species Species accepted by WoRMS (2022) are: *'' Parawaldeckia angusta'' *'' Parawaldeckia dabita'' *'' Parawaldeckia dilkera'' *'' Parawaldeckia hirsuta'' *''Parawaldeckia karaka'' *''Parawaldeckia kidderi ''Parawaldeckia'' is a genus of amphipo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Crustacea
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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anasterias Suteri
''Anasterias'' is a genus of starfish in the family Asteriidae. Species The World Register of Marine Species lists the following species: * '' Anasterias antarctica'' (Lütken, 1857) * '' Anasterias antipodium'' (Bell, 1882) * '' Anasterias asterinoides'' Perrier, 1875 * '' Anasterias directa'' (Koehler, 1920) * '' Anasterias laevigata'' (Hutton, 1879) * '' Anasterias mawsoni'' (Koehler, 1920) * '' Anasterias pedicellaris'' Koehler, 1923 * '' Anasterias perrieri'' (E. A. Smith, 1876) * '' Anasterias rupicola'' (Verrill, 1876) * '' Anasterias sphoerulata'' (Koehler, 1920) * '' Anasterias spirabilis'' (Bell, 1881) * '' Anasterias studeri'' Perrier, 1891 * ''Anasterias suteri ''Anasterias'' is a genus of starfish in the family Asteriidae The Asteriidae are a diverse family of Asteroidea (sea stars) in the order Forcipulatida. It is one of three families in the order Forcipulatida. Genera The World Register of M ...'' (deLoriol, 1894) * '' Anasterias varia'' (Philippi, 187 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fauna
Fauna is all of the animal life present in a particular region or time. The corresponding term for plants is ''flora'', and for fungi, it is '' funga''. Flora, fauna, funga and other forms of life are collectively referred to as '' biota''. Zoologists and paleontologists use ''fauna'' to refer to a typical collection of animals found in a specific time or place, e.g. the "Sonoran Desert fauna" or the "Burgess Shale fauna". Paleontologists sometimes refer to a sequence of faunal stages, which is a series of rocks all containing similar fossils. The study of animals of a particular region is called faunistics. Etymology ''Fauna'' comes from the name Fauna, a Roman goddess of earth and fertility, the Roman god Faunus, and the related forest spirits called Fauns. All three words are cognates of the name of the Greek god Pan, and ''panis'' is the Greek equivalent of fauna. ''Fauna'' is also the word for a book that catalogues the animals in such a manner. The term was first used b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Durvillaea Beachcast1
''Durvillaea'' is a genus of large brown algae in the monotypic family Durvillaeaceae. All members of the genus are found in the southern hemisphere, including Australia, New Zealand, South America, and various subantarctic islands. ''Durvillaea'', commonly known as southern bull kelps, occur on rocky, wave-exposed shorelines and provide a habitat for numerous intertidal organisms. Many species exhibit a honeycomb-like structure in their fronds that provides buoyancy, which allows individuals detached from substrates to raft alive at sea, permitting dispersal for hundreds of days over thousands of kilometres. ''Durvillaea'' species have been used for clothing, tools and as a food source by many indigenous cultures throughout the South Pacific, and they continue to play a prominent role in Chilean cuisine. Common name and etymology The common name for ''Durvillaea'' is southern bull kelp, although this is often shortened to bull kelp, which can generate confusion with the North Pa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Enderby Island
Enderby Island is part of New Zealand's uninhabited Auckland Islands archipelago, south of mainland New Zealand. It is situated just off the northern tip of Auckland Island, the largest island in the archipelago. Geography and geology Enderby Island lies off the northeastern extremity of Auckland Island, directly across from the mouth of Port Ross, from which it is separated by some . Several islands lie in the strait between the two islands, notably Rose, Ewing, and Ocean Islands. Of these, Rose Island lies between the two closest points on Auckland and Enderby Island, separated from them by two narrow channels, each some in width. The island comprises around 1% of the total land area of the Auckland island group. Enderby Island has few notable geographic features. It is surrounded by cliffs and rocky shorelines, with the only landing point being at Sandy Bay in the island's southwest. Several historic huts are located at this bay, which is also home to a breeding colony of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Antipodes Islands
The Antipodes Islands ( Maōri: Moutere Mahue; "Abandoned island") are inhospitable and uninhabited volcanic islands in subantarctic waters to the south of – and territorially part of – New Zealand. The 21 km2 archipelago lies 860 km to the southeast of Stewart Island/Rakiura, and 730 km to the northeast of Campbell Island. They are very close to being the antipodal point to Normandy in France, meaning that the city farthest away is Cherbourg-en-Cotentin, France. The island group consists of one main island, Antipodes Island, of 20 km2 area, Bollons Island to the north, and numerous small islets and stacks. The islands are listed with the New Zealand Outlying Islands. The islands are an immediate part of New Zealand, but not part of any region or district, but instead ''Area Outside Territorial Authority'', like all the other outlying islands except the Solander Islands. Ecologically, the islands are part of the Antipodes Subantarctic Islands tundr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Durvillaea Fenestrata
''Durvillaea fenestrata'' is a large, robust species of southern bull kelp endemic to the subantarctic Antipodes Islands of New Zealand New Zealand ( mi, Aotearoa ) is an island country in the southwestern Pacific Ocean. It consists of two main landmasses—the North Island () and the South Island ()—and over 700 smaller islands. It is the sixth-largest island count .... Description ''Durvillaea fenestrata'' has unbranched stipes, and many holes occur on the primary and secondary blades. Distribution ''Durvillaea fenestrata'' is endemic to the subantarctic Antipodes Islands of New Zealand. References External links {{Taxonbar, from=Q85757987 Fucales Flora of New Zealand Edible seaweeds Protists described in 2019 Ochrophyte species ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
