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Aquaculture Of Giant Kelp
Aquaculture of giant kelp, ''Macrocystis pyrifera'', is the cultivation of kelp for uses such as food, dietary supplements or potash. Giant kelp contains iodine, potassium, other minerals vitamins and carbohydrates. History At the beginning of the 20th century California kelp beds were harvested for their potash. Commercial interest increased during the 1970s and the 1980s due to the production of alginates, and also for biomass production for animal feed due to the energy crisis. However commercial production for ''M. pyrifera'' never developed. With the end of the energy crisis and the decline in alginate prices, research into farming ''Macrocystis'' declined. The supply of ''M. pyrifera'' for alginate production relied heavily on restoration and management of natural beds during the early 1990s. Other functions such as substrate stabilization were explored in California, where the “Kelp bed project” transplanted 3-6m adult specimens to increase the stability of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
CAS Macrocystis 2
CAS may refer to: Organisations * California Academy of Sciences, a major natural history museum and center for scientific research * Career Academies of Seminole, a program run by Pinellas County Schools in Florida * Casablanca American School, a coed private prep school in Casablanca, Morocco * Casualty Actuarial Society, a professional society of actuaries in the United States * Centre for Astrophysics and Supercomputing, a research center at Swinburne University in Australia * Chemical Abstracts Service, a division of the American Chemical Society which produces bibliographic and chemistry databases * Chinese Academy of Sciences, the national academy for the natural sciences of China * Combined Associated Schools, an association of private schools in Sydney, Australia * Contemporary Art Society, UK * Contemporary Art Society (Australia) **Contemporary Art Society, Adelaide, later the Contemporary Art Centre of South Australia * Contemporary Arts Society, Canada * Cour ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Macrocystis Integrifolia
''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 Ne ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Reproductive
The reproductive system of an organism, also known as the genital system, is the biological system made up of all the anatomical organs involved in sexual reproduction. Many non-living substances such as fluids, hormones, and pheromones are also important accessories to the reproductive system. Unlike most organ systems, the sexes of differentiated species often have significant differences. These differences allow for a combination of genetic material between two individuals, which allows for the possibility of greater genetic fitness of the offspring.Reproductive System 2001 Body Guide powered by Adam Animals In mammals, the major organs of the reproductive system include the external gen ...[...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sporophyte
A sporophyte () is one of the two alternation of generations, alternating multicellular organism, multicellular phases in the biological life cycle, life cycles of plants and algae. It is a diploid multicellular organism which produces asexual Spore, spores. This stage Alternation of generations, alternates with a multicellular haploid gametophyte phase. Life cycle The sporophyte develops from the zygote produced when a haploid egg cell is fertilized by a haploid sperm and each sporophyte cell therefore has a double set of chromosomes, one set from each parent. All Embryophyta, land plants, and most multicellular algae, have life cycles in which a multicellular diploid sporophyte phase alternates with a multicellular haploid gametophyte phase. In the Spermatophyte, seed plants, the largest groups of which are the gymnosperms (bare seeds) and angiosperms (fruiting plants), the sporophyte phase is more prominent than the gametophyte, and is the familiar green plant with its roots, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gametophyte
A gametophyte () is one of the two alternating multicellular phases in the life cycles of plants and algae. It is a haploid multicellular organism that develops from a haploid spore that has one set of chromosomes. The gametophyte is the sexual phase in the life cycle of plants and algae. It develops sex organs that produce gametes, haploid sex cells that participate in fertilization to form a diploid zygote which has a double set of chromosomes. Cell division of the zygote results in a new diploid multicellular organism, the second stage in the life cycle known as the sporophyte. The sporophyte can produce haploid spores by meiosis that on germination produce a new generation of gametophytes. Algae In some multicellular green algae ('' Ulva lactuca'' is one example), red algae and brown algae, sporophytes and gametophytes may be externally indistinguishable (isomorphic). In ''Ulva'', the gametes are isogamous, all of one size, shape and general morphology. Land plant ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sporophyte
A sporophyte () is one of the two alternation of generations, alternating multicellular organism, multicellular phases in the biological life cycle, life cycles of plants and algae. It is a diploid multicellular organism which produces asexual Spore, spores. This stage Alternation of generations, alternates with a multicellular haploid gametophyte phase. Life cycle The sporophyte develops from the zygote produced when a haploid egg cell is fertilized by a haploid sperm and each sporophyte cell therefore has a double set of chromosomes, one set from each parent. All Embryophyta, land plants, and most multicellular algae, have life cycles in which a multicellular diploid sporophyte phase alternates with a multicellular haploid gametophyte phase. In the Spermatophyte, seed plants, the largest groups of which are the gymnosperms (bare seeds) and angiosperms (fruiting plants), the sporophyte phase is more prominent than the gametophyte, and is the familiar green plant with its roots, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alternation Of Generations
Alternation of generations (also known as metagenesis or heterogenesis) is the predominant type of life cycle in plants and algae. In plants both phases are multicellular: the haploid sexual phase – the gametophyte – alternates with a diploid asexual phase – the sporophyte. A mature sporophyte produces haploid spores by meiosis, a process which reduces the number of chromosomes to half, from two sets to one. The resulting haploid spores germinate and grow into multicellular haploid gametophytes. At maturity, a gametophyte produces gametes by mitosis, the normal process of cell division in eukaryotes, which maintains the original number of chromosomes. Two haploid gametes (originating from different organisms of the same species or from the same organism) fuse to produce a diploid zygote, which divides repeatedly by mitosis, developing into a multicellular diploid sporophyte. This cycle, from gametophyte to sporophyte (or equally from sporophyte to gametophyte), is the way ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sporeling
A sporeling is a young plant or fungus produced by a germinated spore, similar to a seedling derived from a germinated seed. They occur in algae, fungi, lichens, bryophytes and seedless vascular plants. Sporeling development Most spores germinate by first producing a germ-rhizoid or holdfast followed by a germ tube emerging from the opposite end. The germ tube develops into the hypha, protonema or thallus of the gametophyte. In seedless vascular plants such as ferns and lycopodiophyta, the term "sporeling" refers to the young sporophyte growing on the gametophyte. These sporelings develop via an embryo stage from a fertilized egg inside an archegonium and depend on the gametophyte for their early stages of growth before becoming independent sporophytes. Young fern sporelings can often be found with the prothallus gametophyte still attached at the base of their frond A frond is a large, divided leaf. In both common usage and botanical nomenclature, the leaves of ferns ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Faroe Islands
The Faroe Islands ( ) (alt. the Faroes) are an archipelago in the North Atlantic Ocean and an autonomous territory of the Danish Realm, Kingdom of Denmark. Located between Iceland, Norway, and the United Kingdom, the islands have a population of 54,609 and a land area of 1,393 km². The official language is Faroese language, Faroese, which is partially mutually intelligible with Icelandic language, Icelandic. The terrain is rugged, dominated by fjords and cliffs with sparse vegetation and few trees. As a result of its proximity to the Arctic Circle, the islands experience perpetual Twilight, civil twilight during summer nights and very short winter days; nevertheless, they experience a Oceanic climate#Subpolar variety (Cfc, Cwc), subpolar oceanic climate and mild temperatures year-round due to the Gulf Stream. The capital, Tórshavn, receives the fewest recorded hours of sunshine of any city in the world at only 840 per year. Færeyinga saga, Færeyinga Saga and the writin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
National Oceanic And Atmospheric Administration
The National Oceanic and Atmospheric Administration (NOAA ) is an American scientific and regulatory agency charged with Weather forecasting, forecasting weather, monitoring oceanic and atmospheric conditions, Hydrography, charting the seas, conducting deep-sea exploration, and managing fishing and protection of marine mammals and endangered species in the US exclusive economic zone. The agency is part of the United States Department of Commerce and is headquartered in Silver Spring, Maryland. History NOAA traces its history back to multiple agencies, some of which are among the earliest in the federal government: * United States Coast and Geodetic Survey, formed in 1807 * National Weather Service, Weather Bureau of the United States, formed in 1870 * United States Fish Commission, Bureau of Commercial Fisheries, formed in 1871 (research fleet only) * NOAA Commissioned Corps, Coast and Geodetic Survey Corps, formed in 1917 The most direct predecessor of NOAA was the Enviro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Orange County Register
''The Orange County Register'' is a paid daily List of newspapers in California, newspaper published in California. The ''Register'', published in Orange County, California, is owned by the private equity firm Alden Global Capital via its Digital First Media News subsidiaries. Freedom Communications owned the newspaper from 1935 to 2016. History The ''Register'' was founded by a consortium as the ''Santa Ana Daily Register'' in 1905. It was sold to J. P. Baumgartner in 1906 and to J. Frank Burke in 1927. In 1935 it was bought by Raymond C. Hoiles, who renamed it the ''Santa Ana Register.'' After the Japanese attack on Pearl Harbor, Hoiles was one of the few newspaper publishers in the country to oppose the forced relocation of Japanese and Japanese Americans to camps away from the West Coast. Hoiles reorganized his holdings as Freedom Newspapers, Inc. In 1950, the name was changed to Freedom Communications. The paper dropped "Santa Ana" from its title in 1952. In 1956, the ne ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sargassum Horneri
''Sargassum horneri'' is a species of brown macroalgae that is common along the coast of Japan and Korea. It is an annual algae which has a varying fertile season along the coast. In Wakasa Bay, Japan it begins to grow in early autumn through winter and matures in spring, when the sea water temperature is around . Also called "devil weed", ''S. horneri'' has invaded the Eastern Pacific, beginning in Baja California and advancing north along the California coastline. In its natural ecosystem, ''Sargassum horneri'' grows attached to a hard substrate and blooms into a kelp forest which encourages and maintains local biodiversity. However, this species of macroalgae is the major component of the northwest Pacific golden tide, a biomass of ''Sargassum horneri'' that drifts up the eastern coast of China towards Korea as an invasive species and is detrimental to the coastal ecosystem there. Taxonomy and etymology ''S. horneri'' was first described in 1808 by Dawson Turner under the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
