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Solmundella
''Solmundella'' is a genus of hydrozoan in the family Solmundaeginidae Solmundaeginidae is a family of hydrozoans in the order Narcomedusae. Taxonomy The following genera Genus ( plural genera ) is a taxonomic rank used in the biological classification of living and fossil organisms as well as viruses. In th .... It is monotypic, with the single species ''Solmundella bitentaculata''. Distribution This species is found in: * Ross Sea, Antarctica. * European waters * Gulf of Mexico * Kenya * New Zealand * North West Atlantic * Mediterranean Sea Ecology ''Solmundella bitentaculata'' is an epipelagic and mesopelagic species.WoRMS (2010). Solmundella bitentaculata (Quoy & Gaimard, 1833). In: Schuchert, P. World Hydrozoa database. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=117267 on 2011-01-31 It feeds on the gastropod '' Limacina antarctica''.Larson R. J. & Harbison G. R. (1990). "Medusae from Mcmu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Solmundaeginidae
Solmundaeginidae is a family of hydrozoans in the order Narcomedusae. Taxonomy The following genera Genus ( plural genera ) is a taxonomic rank used in the biological classification of living and fossil organisms as well as viruses. In the hierarchy of biological classification, genus comes above species and below family. In binomial nomenclat ... are recognized in the family Solmundaeginidae: * '' Aeginopsis'' Brandt, 1835 * '' Solmundaegina'' Lindsay, 2017 * '' Solmundella'' Haeckel, 1879 References Narcomedusae Cnidarian families {{Hydrozoa-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Limacina Antarctica
''Limacina rangii'' is a species of swimming sea snail in the family Limacinidae,Bouchet, P. (2014). Limacina rangii (d'Orbigny, 1834). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=719583 on 2015-01-24 which belong to the group commonly known as sea butterflies (Thecosomata). ''Limacina rangii'' is a keystone species of the mesozooplankton of Antarctic pelagic ecosystems. Until 2010 this taxon was known only as ''Limacina helicina antarctica'' or as ''Limacina helicina'' f. ''antarctica''. ''Limacina rangii'' is however now considered to be a separate species from ''Limacina helicina'', based on cytochrome c oxidase subunit I (COI) gene sequences. Distribution The distribution of ''Limacina rangii'' is circumglobal south of 50°S. This species occurs in the Weddell Sea and Ross Sea in the Antarctic and in Cumberland Bay, South Georgia. and other localities in the Southern Ocean. Description ''Limacina ran ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gaimard
Joseph Paul Gaimard (31 January 1793 – 10 December 1858) was a French naval surgeon and naturalist. Biography Gaimard was born at Saint-Zacharie on January 31, 1793. He studied medicine at the naval medical school in Toulon, subsequently earning his qualifications as a naval surgeon. Along with Jean René Constant Quoy, he served as naturalist on the ships ''L'Uranie'' under Louis de Freycinet 1817–1820, and '' L'Astrolabe'' under Jules Dumont d'Urville 1826–1829.Google Books Discovery of Australia's Fishes: A History of Australian Ichthyology to 1930 by Brian Saunders During this voyage they discovered the now extinct giant of |
Hydrozoan
Hydrozoa (hydrozoans; ) are a taxonomic class of individually very small, predatory animals, some solitary and some colonial, most of which inhabit saline water. The colonies of the colonial species can be large, and in some cases the specialized individual animals cannot survive outside the colony. A few genera within this class live in freshwater habitats. Hydrozoans are related to jellyfish and corals and belong to the phylum Cnidaria. Some examples of hydrozoans are the freshwater jelly (''Craspedacusta sowerbyi''), freshwater polyps ('' Hydra''), ''Obelia'', Portuguese man o' war (''Physalia physalis''), chondrophores (Porpitidae), "air fern" (''Sertularia argentea''), and pink-hearted hydroids (''Tubularia''). Anatomy Most hydrozoan species include both a polypoid and a medusoid stage in their lifecycles, although a number of them have only one or the other. For example, ''Hydra'' has no medusoid stage, while '' Liriope'' lacks the polypoid stage. Polyps The hydroid fo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Family (biology)
Family ( la, familia, plural ') is one of the eight major hierarchical taxonomic ranks in Linnaean taxonomy. It is classified between order and genus. A family may be divided into subfamilies, which are intermediate ranks between the ranks of family and genus. The official family names are Latin in origin; however, popular names are often used: for example, walnut trees and hickory trees belong to the family Juglandaceae, but that family is commonly referred to as the "walnut family". What belongs to a family—or if a described family should be recognized at all—are proposed and determined by practicing taxonomists. There are no hard rules for describing or recognizing a family, but in plants, they can be characterized on the basis of both vegetative and reproductive features of plant species. Taxonomists often take different positions about descriptions, and there may be no broad consensus across the scientific community for some time. The publishing of new data and opini ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ross Sea
The Ross Sea is a deep bay of the Southern Ocean in Antarctica, between Victoria Land and Marie Byrd Land and within the Ross Embayment, and is the southernmost sea on Earth. It derives its name from the British explorer James Clark Ross who visited this area in 1841. To the west of the sea lies Ross Island and Victoria Land, to the east Roosevelt Island and Edward VII Peninsula in Marie Byrd Land, while the southernmost part is covered by the Ross Ice Shelf, and is about from the South Pole. Its boundaries and area have been defined by the New Zealand National Institute of Water and Atmospheric Research as having an area of . The circulation of the Ross Sea is dominated by a wind-driven ocean gyre and the flow is strongly influenced by three submarine ridges that run from southwest to northeast. The circumpolar deep water current is a relatively warm, salty and nutrient-rich water mass that flows onto the continental shelf at certain locations. The Ross Sea is covered with ice ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Epipelagic
The photic zone, euphotic zone, epipelagic zone, or sunlight zone is the uppermost layer of a body of water that receives sunlight, allowing phytoplankton to perform photosynthesis. It undergoes a series of physical, chemical, and biological processes that supply nutrients into the upper water column. The photic zone is home to the majority of aquatic life due to the activity (primary production) of the phytoplankton. Photosynthesis in photic zone In the photic zone, the photosynthesis rate exceeds the respiration rate. This is due to the abundant solar energy which is used as an energy source for photosynthesis by primary producers such as phytoplankton. These phytoplankton grow extremely quickly because of sunlight's heavy influence, enabling it to be produced at a fast rate. In fact, ninety five percent of photosynthesis in the ocean occurs in the photic zone. Therefore, if we go deeper, beyond the photic zone, such as into the compensation point, there is little to no phyto ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mesopelagic
The mesopelagic zone (Greek μέσον, middle), also known as the middle pelagic or twilight zone, is the part of the pelagic zone that lies between the photic epipelagic and the aphotic bathypelagic zones. It is defined by light, and begins at the depth where only 1% of incident light reaches and ends where there is no light; the depths of this zone are between approximately 200 to 1,000 meters (~656 to 3,280 feet) below the ocean surface. The mesopelagic zone occupies about 60% of the planet's surface and about 20% of the ocean's volume, amounting to a large part of the total biosphere. It hosts a diverse biological community that includes bristlemouths, blobfish, bioluminescent jellyfish, giant squid, and a myriad of other unique organisms adapted to live in a low-light environment. It has long captivated the imagination of scientists, artists and writers; deep sea creatures are prominent in popular culture. Physical conditions The mesopelagic zone includes the reg ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
