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Holothuridae
Holothuriidae is a family of sea cucumbers, a type of echinoderm. Description Members of the family Holothuriidae have thick fleshy bodies and several rows of tube feet which are used for moving around and for adhering to the surface. The body is often covered with blunt projections known as papillae. Many of the members of this family are able to eject a mass of fine sticky threads known as cuvierian tubules to distract predators, or even turn their viscera inside out. For the taxonomic determination, the genera ''Actinopyga'' and ''Bohadschia'' have their spicules exclusively shaped like sticks, and the genera '' Holothuria'' and ''Labidodemas'' never have theirs shaped like tables. ''Actinopyga'' is also equipped with anal teeth (modified podia), and never throw out Cuvieran tubules, just like ''Pearsonothuria''. Members of this family occur throughout the oceans of the world at low to middle latitudes. They often live in coral reefs and nearby sandy habitat types, and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Holothuriidae
Holothuriidae is a family of sea cucumbers, a type of echinoderm. Description Members of the family Holothuriidae have thick fleshy bodies and several rows of tube feet which are used for moving around and for adhering to the surface. The body is often covered with blunt projections known as papillae. Many of the members of this family are able to eject a mass of fine sticky threads known as cuvierian tubules to distract predators, or even turn their viscera inside out. For the taxonomic determination, the genera ''Actinopyga'' and ''Bohadschia'' have their spicules exclusively shaped like sticks, and the genera '' Holothuria'' and ''Labidodemas'' never have theirs shaped like tables. ''Actinopyga'' is also equipped with anal teeth (modified podia), and never throw out Cuvieran tubules, just like ''Pearsonothuria''. Members of this family occur throughout the oceans of the world at low to middle latitudes. They often live in coral reefs and nearby sandy habitat types, and a f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Holothuria Pervicax
''Holothuria pervicax'' is a species of sea cucumber in the genus ''Holothuria''. It is commonly called the stubborn sea cucumber due to its inability to be kept alive in captivity. It is commonly found buried beneath rocks on reefs in warm waters. Description ''Holothuria perviax'' is a gray or brown sea cucumber with red-brown papillae and white tube feet for locomotion. Its body is elongated with an oral-aboral orientation and can grow up to 30 centimeters. It has a soft epidermis and a somewhat bumpy body. Its mouth is surrounded by thin branched tentacles with poorly formed spricules found around the body. Distinctions between ''H. perviax'' and sister species fusconierea are hard to find but the main differences are spicule size and slight coloration differences. This species is very high maintenance and requires a specific lifestyle in order to survive. Aquariums have had a very hard time keeping these animals happy and have yet to keep one alive in captivity which has ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pearsonothuria
''Pearsonothuria'' is a genus of sea cucumbers in the family Holothuriidae. ''Pearsonothuria graeffei'' is the only species in the genus. Graeffe's sea cucumber is found in the tropical Indo-Pacific Ocean and the type locality is Viti Island, Fiji. Description ''Pearsonothuria graeffei'' is a roughly cylindrical, thin-walled sea cucumber that grows to about in length.Graeffe's sea cucumber Tropical Reefs. Retrieved 2012-02-16. Its mouth, at one end, is surrounded by a ring of up to 24 leaf-like, paddle-shaped tentacles with black stalks which are black on the upper side and white beneath. The anus is at the other end of the body and there are several rows of along the underside. The colour of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pearsonothuria Graeffei
''Pearsonothuria'' is a genus of sea cucumbers in the family Holothuriidae. ''Pearsonothuria graeffei'' is the only species in the genus. Graeffe's sea cucumber is found in the tropical Indo-Pacific Ocean and the type locality is Viti Island, Fiji. Description ''Pearsonothuria graeffei'' is a roughly cylindrical, thin-walled sea cucumber that grows to about in length.Graeffe's sea cucumber Tropical Reefs. Retrieved 2012-02-16. Its mouth, at one end, is surrounded by a ring of up to 24 leaf-like, paddle-shaped tentacles with black stalks which are black on the upper side and white beneath. The anus is at the other end of the body and there are several rows of along the underside. The colour of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Labidodemas Rugosum
''Labidodemas rugosum'' is a species of sea cucumber in the family Holothuriidae. It is native to the tropical Indo-Pacific region. Description ''Labidodemas rugosum'' has a distinctive white-pink hue. It is covered in long pinkish-white papillae. Distribution and habitat ''Labidodemas rugosum'' is found off the coasts of Asia and Africa, in the tropical Indian Ocean and the western Pacific Ocean. Its range extends from the Red Sea, the east coast of Africa and Madagascar, to India and the Maldives, to Indonesia, northern Australia, the Philippines, Malaysia, New Guinea and other island groups in the western Pacific. It is found in coral reefs, at depths between . Status ''Labidodemas rugosum'' is uncommon, but widespread throughout the Indo-Pacific, and not widely fished. Due to this, the International Union for Conservation of Nature has assessed the conservation status of this sea cucumber as least concern A least-concern species is a species that has been categorized ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Holothuria Edulis
''Holothuria edulis'', commonly known as the edible sea cucumber or the pink and black sea cucumber, is a species of echinoderm in the family Holothuriidae. It was placed in the subgenus ''Halodeima'' by Pearson in 1914, making its full scientific name ''Holothuria (Halodeima) edulis''. It is found in shallow water in the tropical Indo-Pacific Ocean. Description ''Holothuria edulis'' is a medium-sized sea cucumber reaching a length of about . It has a roughly cylindrical shape with rounded ends but can retract and expand its body and adopt different shapes. It is usually soft and pliable with a smooth skin but, due to the special characteristics of its connective tissue, it can become firm and rigid. The body is lined with longitudinal rows of small tube feet which can be withdrawn into the body wall, leaving small hollows. About twenty tube feet in a ring round the mouth are modified into feeding tentacles. This sea cucumber is usually a dark reddish-black colour on its upper sid ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bohadschia Argus
''Bohadschia argus'', the leopard sea cucumber, is a species of marine invertebrate in the family Holothuriidae. It is the type species of the genus ''Bohadschia''; Jaeger, 1833. Description ''Bohadschia argus'' is sausage-shaped with a smooth, tough, leathery skin and can grow to in length. It is a greyish-brown colour, paler below, with distinctive dark eye-spots surrounded by white haloes. There are several rows of tube feet on the underside. Surrounding the mouth at the anterior end is a ring of paddle-shaped, black tentacles fringed with white. The anus, at the posterior end, has Cuvierian tubules situated at its base which are readily ejected as sticky threads if the animal is disturbed or handled. These contain toxins which deter predators and are irritating to human skin. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Actinopyga Echinites
''Actinopyga echinites'', commonly known as the brownfish or deep water redfish, is a species of sea cucumber in the family Holothuriidae. It is native to the tropical Indo-Pacific region and is harvested for food. Description ''Actinopyga echinites'' grows to a length of about . It is widest in the middle, tapering slightly at both ends; the dorsal surface is arched while the ventral surface is flattened. The leathery skin is rough, being covered in papillae. The skin is strengthened by the presence of spicules, microscopic spike-like structures, which in this species are shaped like large rods. The colour of this sea cucumber is brown above and orange-brown below, and the upper surface often has sand adhering to it. The anus is surrounded by five beige anal teeth, and the pinkish Cuvierian tubules are occasionally discharged through the anus when the animal is stressed. Distribution and habitat ''Actinopyga echinites'' is found off the coasts of Asia and Africa, in the tropi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Detritivore
Detritivores (also known as detrivores, detritophages, detritus feeders, or detritus eaters) are heterotrophs that obtain nutrients by consuming detritus (decomposing plant and animal parts as well as feces). There are many kinds of invertebrates, vertebrates and plants that carry out coprophagy. By doing so, all these detritivores contribute to decomposition and the nutrient cycles. They should be distinguished from other decomposers, such as many species of bacteria, fungi and protists, which are unable to ingest discrete lumps of matter, but instead live by absorbing and metabolizing on a molecular scale ( saprotrophic nutrition). The terms ''detritivore'' and ''decomposer'' are often used interchangeably, but they describe different organisms. Detritivores are usually arthropods and help in the process of remineralization. Detritivores perform the first stage of remineralization, by fragmenting the dead plant matter, allowing decomposers to perform the second stage of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Indo-Pacific
The Indo-Pacific is a vast biogeographic region of Earth. In a narrow sense, sometimes known as the Indo-West Pacific or Indo-Pacific Asia, it comprises the tropical waters of the Indian Ocean, the western and central Pacific Ocean, and the seas connecting the two in the general area of Indonesia. It does not include the temperate and polar regions of the Indian and Pacific oceans, nor the Tropical Eastern Pacific, along the Pacific coast of the Americas, which is also a distinct marine realm. The term is especially useful in marine biology, ichthyology, and similar fields, since many marine habitats are continuously connected from Madagascar to Japan and Oceania, and a number of species occur over that range, but are not found in the Atlantic Ocean. The region has an exceptionally high species richness, with the world's highest species richness being found in at its heart in the Coral Triangle, and a remarkable gradient of decreasing species richness radiating outwa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Coral Reef
A coral reef is an underwater ecosystem characterized by reef-building corals. Reefs are formed of colonies of coral polyps held together by calcium carbonate. Most coral reefs are built from stony corals, whose polyps cluster in groups. Coral belongs to the class Anthozoa in the animal phylum Cnidaria, which includes sea anemones and jellyfish. Unlike sea anemones, corals secrete hard carbonate exoskeletons that support and protect the coral. Most reefs grow best in warm, shallow, clear, sunny and agitated water. Coral reefs first appeared 485 million years ago, at the dawn of the Early Ordovician, displacing the microbial and sponge reefs of the Cambrian. Sometimes called ''rainforests of the sea'', shallow coral reefs form some of Earth's most diverse ecosystems. They occupy less than 0.1% of the world's ocean area, about half the area of France, yet they provide a home for at least 25% of all marine species, including fish, mollusks, worms, crustaceans, echinode ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Labidodemas
''Labidodemas'' is a genus of marine sea cucumbers in the family Holothuriidae. The genus was erected by Emil Selenka in 1867. Species The World Register of Marine Species The World Register of Marine Species (WoRMS) is a taxonomic database that aims to provide an authoritative and comprehensive list of names of marine organisms. Content The content of the registry is edited and maintained by scientific specialist ... recognises the following species: * '' Labidodemas americanum'' Deichmann, 1938 * '' Labidodemas maccullochi'' (Deichmann, 1958) * '' Labidodemas pertinax'' (Ludwig, 1875) * '' Labidodemas pseudosemperianum'' Massin, Samyn & Thandar, 2004 * '' Labidodemas quadripartitum'' Massin, Samyn & Thandar, 2004 * '' Labidodemas rugosum'' (Ludwig, 1875) * '' Labidodemas semperianum'' Selenka, 1867 * '' Labidodemas spineum'' Massin, Samyn & Thandar, 2004 Image:Labidodemas pertinax.jpg, '' Labidodemas pertinax'' Image:Labidodemas rugosum.jpg, '' Labidodemas rugosum'' Ref ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
