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Stichopus Naso
''Stichopus naso'' is a species of sea cucumber from the family Stichopodidae Description It is a classical ''Stichopus ''Stichopus'' is a genus of sea cucumbers from the family Stichopodidae. Description and characteristics Sources disagree about how many species should be classified in the genus. By 1922 there were about 20 described.James, D. B. (1998)On a li ...'', stout and trapezoidal to rectangular in cross-section and with three rows of podia on the ventral face. Its color is uniform or mottled, from sandy to darj brown, with black lines and dots. Its dorsum wears huge and erected (though retractile) tubercle-like excrescences. Stichopus naso, or also known as tropical holothurian but generally, in modern terms, it is considered a sea cucumber. Stichopus naso was discovered in 1867 specifically in the Philippines. The most recent discovery of this species was in 2011 by the coast of Kagoshima, Kyushu, Japan Range This species can be found from the Andaman Sea to New ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Species
In biology, a species is the basic unit of classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of the appropriate sexes or mating types can produce fertile offspring, typically by sexual reproduction. Other ways of defining species include their karyotype, DNA sequence, morphology, behaviour or ecological niche. In addition, paleontologists use the concept of the chronospecies since fossil reproduction cannot be examined. The most recent rigorous estimate for the total number of species of eukaryotes is between 8 and 8.7 million. However, only about 14% of these had been described by 2011. All species (except viruses) are given a two-part name, a "binomial". The first part of a binomial is the genus to which the species belongs. The second part is called the specific name or the specific epithet (in botanical nomenclature, also sometimes i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sea Cucumber
Sea cucumbers are echinoderms from the class Holothuroidea (). They are marine animals with a leathery skin and an elongated body containing a single, branched gonad. Sea cucumbers are found on the sea floor worldwide. The number of holothurian () species worldwide is about 1,717, with the greatest number being in the Asia-Pacific region. Many of these are gathered for human consumption and some species are cultivated in aquaculture systems. The harvested product is variously referred to as '' trepang'', ''namako'', ''bêche-de-mer'', or ''balate''. Sea cucumbers serve a useful role in the marine ecosystem as they help recycle nutrients, breaking down detritus and other organic matter, after which bacteria can continue the decomposition process. Like all echinoderms, sea cucumbers have an endoskeleton just below the skin, calcified structures that are usually reduced to isolated microscopic ossicles (or sclerietes) joined by connective tissue. In some species these can sometim ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stichopodidae
The Stichopodidae are a family of sea cucumbers, part of the order Synallactida. Description Members of this family are mostly large or medium-sized holothuroids with a squarish cross-section, a flat ventral surface, and large, fleshy, cone-shaped projections. Their mouths are surrounded by 20 peltate tentacles. They are usually found on soft substrates, such as sand or rubble. Genera List of genera according to the World Register of Marine Species: * genus '' Apostichopus'' Liao, 1980 (8 species, North Pacific) * genus '' Astichopus'' Clark, 1922 (1 species, Caribbean) * genus '' Australostichopus'' Levin in Moraes et al., 2004 (1 species, New Zealand and southern Australia) * genus '' Eostichopus'' Cutress & Miller, 1982 (1 species, Caribbean) * genus '' Isostichopus'' Deichmann, 1958 (3 species, warm East Pacific and Atlantic) * genus '' Neostichopus'' Deichmann, 1948 (1 species, South Africa) * genus '' Parastichopus'' Clark, 1922 (2 species, Atlantic and North Pacific) ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stichopus
''Stichopus'' is a genus of sea cucumbers from the family Stichopodidae. Description and characteristics Sources disagree about how many species should be classified in the genus. By 1922 there were about 20 described.James, D. B. (1998)On a little known holothurian ''Stichopus vastus'' Sluiter with notes on other species of ''Stichopus'' from the seas around India.Marine Fisheries Information Service. Central Marine Fisheries Research Institute. Cochin, India. Current species counts range from about 8 to 14.Hansson, H. (2013)''Stichopus'' Brandt, 1835.World Register of Marine Species. Accessed on 8 June 2013. A number of animals have been moved to other genera, such as '' Apostichopus'' and '' Isostichopus''. These sea cucumbers are relatively large. One of the largest is ''S. vastus'', which can reach 40 to 50 centimeters in length. They have soft, quadrangular bodies covered on all four sides with thick tubercles. Some of them can be quite variable, especially in their colora ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Marine Animals
Marine life, sea life, or ocean life is the plants, animals and other organisms that live in the salt water of seas or oceans, or the brackish water of coastal estuaries. At a fundamental level, marine life affects the nature of the planet. Marine organisms, mostly microorganisms, produce oxygen and sequester carbon. Marine life in part shape and protect shorelines, and some marine organisms even help create new land (e.g. coral building reefs). Most life forms evolved initially in marine habitats. By volume, oceans provide about 90% of the living space on the planet. The earliest vertebrates appeared in the form of fish, which live exclusively in water. Some of these evolved into amphibians, which spend portions of their lives in water and portions on land. One group of amphibians evolved into reptiles and mammals and a few subsets of each returned to the ocean as sea snakes, sea turtles, seals, manatees, and whales. Plant forms such as kelp and other algae grow in the wate ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
