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Aquilonastra Chantalae
''Aquilonastra chantalae'' is a species of starfish from the family Asterinidae. Asterinid sea stars are typically quite small with an often pentagonal-shaped body, though there are exceptions. They are dorsally flattened and have short arms. The body's thin periphery is built up by very small marginal plates. One distinct characteristic of those in this family is the presence of an aboral face shaped by crescent-like plates. Genus- ''Aquilonastra'' ''Aquilonastra chantalae'' belongs to the genus ''Aquilonastra''. Organisms within the genus ''Aquilonastra'' typically have five rays, commonly called arms. However, fissiparous species, those that reproduce by fission, can have from five to eight. Those of this genus resemble stars, with their inter-radial margins being incurved significantly. Description ''Aquilonastra chantalae'' is a fissiparous Aquilonastra species that can have a radius up to a size of 4mm. Organisms of this species generally have 5–7 rays, with the mos ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Animal
Animals are multicellular, eukaryotic organisms in the Kingdom (biology), biological kingdom Animalia. With few exceptions, animals Heterotroph, consume organic material, Cellular respiration#Aerobic respiration, breathe oxygen, are Motility, able to move, can Sexual reproduction, reproduce sexually, and go through an ontogenetic stage in which their body consists of a hollow sphere of Cell (biology), cells, the blastula, during Embryogenesis, embryonic development. Over 1.5 million Extant taxon, living animal species have been Species description, described—of which around 1 million are Insecta, insects—but it has been estimated there are over 7 million animal species in total. Animals range in length from to . They have Ecology, complex interactions with each other and their environments, forming intricate food webs. The scientific study of animals is known as zoology. Most living animal species are in Bilateria, a clade whose members have a Symmetry in biology#Bilate ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Echinoderm
An echinoderm () is any member of the phylum Echinodermata (). The adults are recognisable by their (usually five-point) radial symmetry, and include starfish, brittle stars, sea urchins, sand dollars, and sea cucumbers, as well as the sea lilies or "stone lilies". Adult echinoderms are found on the sea bed at every ocean depth, from the intertidal zone to the abyssal zone. The phylum contains about 7,000 living species, making it the second-largest grouping of deuterostomes, after the chordates. Echinoderms are the largest entirely marine phylum. The first definitive echinoderms appeared near the start of the Cambrian. The echinoderms are important both ecologically and geologically. Ecologically, there are few other groupings so abundant in the biotic desert of the deep sea, as well as shallower oceans. Most echinoderms are able to reproduce asexually and regenerate tissue, organs, and limbs; in some cases, they can undergo complete regeneration from a single limb. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sea Star
Starfish or sea stars are Star polygon, star-shaped echinoderms belonging to the class (biology), class Asteroidea (). Common usage frequently finds these names being also applied to brittle star, ophiuroids, which are correctly referred to as brittle stars or basket stars. Starfish are also known as asteroids due to being in the class Asteroidea. About 1,900 species of starfish live on the seabed in all the world's oceans, from warm, tropics, tropical zones to frigid, polar regions of Earth, polar regions. They are found from the intertidal zone down to abyssal zone, abyssal depths, at below the surface. Starfish are marine invertebrates. They typically have a central disc and usually five arms, though some species have a larger number of arms. The aboral or upper surface may be smooth, granular or spiny, and is covered with overlapping plates. Many species are brightly coloured in various shades of red or orange, while others are blue, grey or brown. Starfish have tube fee ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Valvatida
The Valvatida are an order of starfish in the class Asteroidea, which contains 695 species in 172 genera in 17 families. Description The order encompasses both tiny species, which are only a few millimetres in diameter, like those in the genus '' Asterina'', and species which can reach up to 75 cm, such as species in the genus '' Thromidia''. Almost all species in this order have five arms with tube feet. This order is primarily identified by the presence of conspicuous marginal ossicles, which characterize most of the species. Most members of this order have five arms and two rows of tube feet with suckers. Some species have paxillae and in some, the main pedicellariae are clamp-like and recessed into the skeletal plates. This group includes the cushion star, and the leather star. Families According to the World Register of Marine Species, the following families are included in Valvatida: * family Acanthasteridae Gervais, 1841 * family Archasteridae Viguier, 1878 * f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Asterinidae
The Asterinidae are a large family of sea stars in the order Valvatida. Description and characteristics These are generally small sea stars, flattened dorsally and bearing very short arms, often giving a pentagonal shape in the body ;example: ''Asterians rubens'' (except in some species possessing more than five arms). The periphery of the body is thin and formed by indistinct, tiny marginal plates. They are characterized by their aborale face formed by plates shaped like crescents, sometimes giving a "knitted" appearance to the skin. The abyssal species can be bigger, like those of the genus '' Anseropoda'', which can exceed 45 cm in diameter. Biology Most of the species are small and relatively cryptic: they are often found hidden under rocks or in crevices, for example. Several species have access to a fissiparous asexual reproduction, multiplying their reproductive potential. For that reason, some species of the genera '' Meridiastra'' and '' Aquilonastra'' can so ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aquilonastra
''Aquilonastra'' is a genus of small sea stars within the family Asterinidae. It has over 20 described species. Description ''Aquilonastra'' has generally five rays, except fissiparous species which have five to eight ones. It looks like a star, as inter-radial margins are deeply incurved. List of species According to World Register of Marine Species and O'Loughlin & Rowe 2006:. * '' Aquilonastra anomala'' (H.L. Clark, 1921) * '' Aquilonastra batheri'' (Goto, 1914) * '' Aquilonastra burtoni'' (Gray, 1840) * '' Aquilonastra byrneae'' O'Loughlin & Rowe, 2006 * '' Aquilonastra cepheus'' (Muller & Troschel, 1842) * '' Aquilonastra chantalae'' O'Loughlin & MacKenzie, 2013 * '' Aquilonastra colemani'' O'Loughlin & Rowe, 2006 * '' Aquilonastra conandae'' O'Loughlin & Rowe, 2006 * '' Aquilonastra corallicola'' (Marsh, 1977) * '' Aquilonastra coronata'' (von Martens, 1866) * '' Aquilonastra doranae'' O'Loughlin & Rowe, 2006 * '' Aquilonastra halseyae'' O'Loughlin & Rowe, 2006 * '' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Melanie Mackenzie
Melanie is a feminine given name derived from the Greek μελανία (melania), "blackness" and that from μέλας (melas), meaning "dark". at Perseus project Borne in its Latin form by two saints, and her granddaughter Melania the Younger,Behind the Name /ref> the name was in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chantal Conand
Chantal Conand (born 10 April 1943) is a French marine biologist. Biography Conand obtained her PhD in biological oceanography at University of Western Brittany in Brest in 1988. Her thesis focused on Aspidochirotida of the New Caledonia Barrier Reef (french: Les Holothuries aspidochirotes du lagon de Nouvelle-Calédonie). In January 1993, she joined the marine ecology laboratory (ECOMAR) at the University of La Réunion and eventually became its chief scientist.. Her expertise extends to all echinoderms of the Indo-Pacific, but her work has focused on sea cucumbers,. but also on other echinoderms of la Réunion. Her other work has included studies of the crown-of-thorns starfish, which preys upon hard, or stony, coral polyps (Scleractinia). She was a member of the scientific committee of the '' Western Indian Ocean Marine Science Association'' from 2001 to 2004. She has since retired and become emeritus faculty. Works Her works include more than thirty books or book chapters ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
University Of La Reunion
The University of Reunion Island (''Université de la Réunion'') is a French university in the Academy of Réunion. It is the first and only European university in the Indian Ocean. Established in 1982, it has grown steadily over the years in terms of student population, geographical sites occupied, courses offered and partnerships forged with local, national and international institutions. The school's ambition is to be the reference university in Indianoceania. The University has 123 ERASMUS+ inter-institutional agreements. Its European project EVAL-IC (Evaluation of Competences in Intercomprehension) has been awarded the "good practice" label by the Erasmus+ France Agency, given to projects that present "high quality implementation and results". History In 1982: the faculty of "Law and Economics" was the first faculty at the University of Reunion, followed by the faculty "Sciences and Technologies" and the faculty "Letters and Humanities". In 2005 : creation of the fourt ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
