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Laminariaceae
Laminariaceae is a Family (biology), family of brown algal seaweeds, many genera of which are popularly called "kelp". The table indicates the genera within this family. Guiry, M.D. & Guiry, G.M. (2006). AlgaeBase version 4.2. World-wide electronic publication, National University of Ireland, Galway. http://www.algaebase.org''Laminariaceae''genera retrieved December 19, 2009. The family includes the largest known seaweeds: ''Nereocystis'' and ''Macrocystis''.van den Hoek, C., Mann, D.G. and Jahns, H.M. 1995. Algae An Introduction to Phycology'. University of Cambridge. References Further reading External links Laminariaceae, Brown algae families {{Phaeophyceae-stub ...[...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Laminaria Hyperborea
''Laminaria hyperborea'' is a species of large brown alga, a kelp in the family Laminariaceae, also known by the common names of tangle and cuvie. It is found in the sublittoral zone of the northern Atlantic Ocean. A variety, ''Laminaria hyperborea f. cucullata'' (P.Svensden & J.M.Kain, 1971) is known from more wave sheltered areas in Scandinavia. Description ''Laminaria hyperborea'' is a massive, leathery seaweed, up to 360 cm long.Newton, L. 1931. ''A Handbook of the British Seaweeds.'' British Museum, London The holdfast is large and cone-shaped, with branched rhizoids, looking rather like a bird's foot. The stipe is circular in cross section, rough, thick at the base and tapering upwards. Older stipes are often covered with epiphytic red algae. The laminate blade is deeply divided into linear segments and is yellowish brown with large digitate segments. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brown Alga
Brown algae (: alga) are a large group of multicellular algae comprising the class Phaeophyceae. They include many seaweeds located in colder waters of the Northern Hemisphere. Brown algae are the major seaweeds of the temperate and polar regions. Many brown algae, such as members of the order Fucales, commonly grow along rocky seashores. Most brown algae live in marine environments, where they play an important role both as food and as a potential habitat. For instance, '' Macrocystis'', a kelp of the order Laminariales, may reach in length and forms prominent underwater kelp forests that contain a high level of biodiversity. Another example is '' Sargassum'', which creates unique floating mats of seaweed in the tropical waters of the Sargasso Sea that serve as the habitats for many species. Some members of the class, such as kelps, are used by humans as food. Between 1,500 and 2,000 species of brown algae are known worldwide. Some species, such as '' Ascophyllum nodosu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Macrocystis
''Macrocystis'' is a monospecific genus of kelp (large brown algae) with all species now synonymous with ''Macrocystis pyrifera''. It is commonly known as giant kelp or bladder kelp. This genus contains the largest of all the Phaeophyceae or brown algae. ''Macrocystis'' has pneumatocysts at the base of its blades. Sporophytes are perennial and the individual may live for up to three years; stipes/fronds within a whole individual undergo senescence, where each frond may persist for approximately 100 days. The genus is found widely in subtropical, temperate, and sub-Antarctic oceans of the Southern Hemisphere and in the northeast Pacific. ''Macrocystis'' is often a major component of temperate kelp forests. Despite its appearance, it is not a plant; it is a heterokont. Giant kelp is common along the coast of the northeastern Pacific Ocean, from Baja California north to southeast Alaska, and is also found in the southern oceans near South America, South Africa, Australia, and N ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arthrothamnus
''Arthrothamnus'' is a genus of brown alga Brown algae (: alga) are a large group of multicellular algae comprising the class Phaeophyceae. They include many seaweeds located in colder waters of the Northern Hemisphere. Brown algae are the major seaweeds of the temperate and polar reg ... comprising approximately 2 species. It includes the algae commonly known as nekoashi-kombu, oarweed and chishima-nekoashi-kombu. ''Bifurcariopsis'' reproduces by means of conceptacles; it produces tetraspores and dispores and carpospores. Species The two species currently recognised are '' Arthrothamnus bifidus'' and '' Arthrothamnus kurilensis''. References * Laminariaceae Laminariales genera {{phaeophyceae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kjellmaniella
''Kjellmaniella'' is a monotypic genus of kelp (large brown algae) comprising the species ''Kjellmaniella crassifolia'', known as in Japanese. The species has received attention in recent years for fucoidan content and its multilateral profile of fucoidan chemicals compared to other seaweeds. It is now used in dietary supplements, cosmetics, and various processed foods (Cf. for the particulars). It is characterized by textures appearing on the frond, described as or "gyrations". Taxonomy The compounded name was proposed as standard Japanese common name in 2007. This was prompted by reclassification under the '' Saccharina'' genus by Lane et al., 2006, though this was later reversed back to ''Kjellmaniella'' by Starko et al., 2019, cowritten by Yotsukura. The algae is also known informally as ''gamo'' in the seafood market. Distribution and Habitat ''Kjellmaniella'' is found growing in the waters of Japan, Korea and Russian Far East (and Sakhalin). In the waters around ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Laminaria
''Laminaria'' is a genus of brown algae, brown seaweed in the order Kelp, Laminariales (kelp), comprising 31 species native to the north Atlantic and northern Pacific Oceans. This economically important genus is characterized by long, leathery Lamina (algae), laminae and relatively large size. Some species are called Devil's apron, due to their shape, or sea colander, due to the perforations present on the Lamina (algae), lamina. Others are referred to as ''tangle''. ''Laminaria'' form a habitat for many fish and invertebrates. The life cycle of ''Laminaria'' has wikt:heteromorphic, heteromorphic alternation of generations which differs from ''Fucus''. At meiosis the male and female zoospores are produced separately, then germinate into male and female gametophytes. The female egg matures in the oogonium until the male sperm fertilizes it. Life-Cycle: The most apparent form of ''Laminaria'' is its sporophyte phase, a structure composed of the holdfast (biology), holdfast, the Sti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nereocystis
''Nereocystis'' (Greek, 'mermaid's bladder') is a monotypic genus of subtidal kelp containing the species ''Nereocystis luetkeana''. Some English names include edible kelp, bull kelp, bullwhip kelp, ribbon kelp, bladder wrack, and variations of these names. Due to the English name, bull kelp can be confused with southern bull kelps, which are found in the Southern Hemisphere. ''Nereocystis luetkeana'' forms thick beds on subtidal rocks, and is an important part of kelp forests. Etymology The species ''Nereocystis luetkeana'' was named (as ''Fucus luetkeanus'') after the German-Russian explorer Fyodor Petrovich Litke (also spelled Lütke) by Mertens. The species was renamed in a description by Postels and Ruprecht. Description ''Nereocystis'' is a brown macroalgae that derives chemical energy from photosynthesis. ''Nereocystis'' in particular, similar to ''Pelagophycus porra'', can be identified by a single large pneumatocyst between the end of its hollow stipe and the b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pelagophycus
''Pelagophycus'' is a monotypic genus of kelp. It is found in deep waters off the west coast of central North America. The species ''Pelagophycus porra'', also known as elk kelp, grows in temperatures of no higher than . It grows in subtidal forests in the coastal waters off southern California and northwestern Baja California Peninsula, in waters of to deep, anchored by a holdfast in sedimentary or loose sediment bottoms.Guiry, M.D. & Guiry, G.M. 2013''Pelagophycus'' Areschoug, 1881 AlgaeBase, National University of Ireland, Galway. http://www.algaebase.org; searched on 7 February 2013. Three ecotype Ecotypes are organisms which belong to the same species but possess different phenotypical features as a result of environmental factors such as elevation, climate and predation. Ecotypes can be seen in wide geographical distributions and may event ...s are recognized: :''Pelagophycus giganteus'' :''Pelagophycus porra'' :''Pelagophycus intermedius'' References Further ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Postelsia
''Postelsia palmaeformis'', also known as the sea palm (not to be confused with the southern sea palm) or palm seaweed, is a species of kelp and classified within brown algae. It is the only known species in the genus ''Postelsia''. The sea palm is found along the western coast of North America, on rocky shores with constant waves. It is one of the few algae that can survive and remain erect out of the water; in fact, it spends most of its life cycle exposed to the air. It is an annual, and edible, though harvesting of the alga is discouraged due to the species' sensitivity to overharvesting. History The sea palm was known by the natives of California by the name of kakgunu-chale before any Europeans entered the region. ''Postelsia'' was first scientifically described by Franz Josef Ruprecht (1814–1870) in 1852 from a specimen found near Bodega Bay in California. Ruprecht, an Austro-Hungarian who became curator of botany at the Academy of Sciences in St. Petersburg in 183 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Saccharina
''Saccharina'' is a genus of 24 species of Phaeophyceae (brown algae). It is found in the north Atlantic Ocean and the northern Pacific Ocean at depths from 8 m to 30 m (exceptionally to 120 m in the warmer waters of the Mediterranean Sea and off Brazil). The commercially important species ''Saccharina japonica'' (''Laminaria japonica'') is cultivated as kombu, a popular food in Japan. Species The following is a list of the 24 species of ''Saccharina'': * ''Saccharina angustata'' (Kjellman) C.E. Lane, C. Mayes, Druehl & G.W. Saunders *'' Saccharina angustissima'' (Collins) Augyte, Yarish & Neefus * '' Saccharina bongardiana'' (Postels & Ruprecht) Selivanova, Zhigadlova & G.I. Hansen * ''Saccharina cichorioides'' (Miyabe) C.E. Lane, C. Mayes, Druehl & G.W. Saunders * '' Saccharina coriacea'' (Miyabe) C.E. Lane, C. Mayes, Druehl & G.W. Saunders *''Saccharina complanata'' (Setchell & N.L.Gardner) Gabrielson, Lindstrom & O'Kelly * '' Saccharina crassifolia'' (Pos ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Family (biology)
Family (, : ) 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". The delineation of what constitutes a family—or whether a described family should be acknowledged—is established and decided upon by active taxonomists. There are not strict regulations for outlining or acknowledging a family, yet in the realm of plants, these classifications often rely on both the vegetative and reproductive characteristics of plant species. Taxonomists frequently hold varying perspectives on these descriptions, leading to a lack of widespread consensus within the scientific community ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
