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Leptasterias Polaris
''Leptasterias polaris'', the polar six-rayed star, is a species of starfish in the family Asteriidae. It is found in cold waters in the northwest Atlantic Ocean and in polar regions. Description ''Leptasterias polaris'' is a small, slow growing, compact starfish with six arms. The aboral (upper) surface has a covering of blunt spiny plates and is usually some shade of brown or grey. Distribution and habitat ''Leptasterias polaris'' occurs in the north west Atlantic Ocean from the Gulf of Maine northwards, and in Arctic waters. It has also been found in the Azores and European waters. Biology ''Leptasterias polaris'' is a major predator in the cold waters in which it lives. Young individuals are mostly found on rocks less than deep and feed on such bivalve molluscs as the blue mussel ('' Mytilus edulis'') and ''Hiatella arctica''. Older individuals move to deeper waters where the seabed is sand or mud and feed on clams such as the Greenland cockle (''Serripes groenlandicus'' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leptasterias Polaris (MNHN-IE-2013-10392)
''Leptasterias polaris'', the polar six-rayed star, is a species of starfish in the family Asteriidae. It is found in cold waters in the northwest Atlantic Ocean and in polar regions. Description ''Leptasterias polaris'' is a small, slow growing, compact starfish with six arms. The aboral (upper) surface has a covering of blunt spiny plates and is usually some shade of brown or grey. Distribution and habitat ''Leptasterias polaris'' occurs in the north west Atlantic Ocean from the Gulf of Maine northwards, and in Arctic waters. It has also been found in the Azores and European waters. Biology ''Leptasterias polaris'' is a major predator in the cold waters in which it lives. Young individuals are mostly found on rocks less than deep and feed on such bivalve molluscs as the blue mussel ('' Mytilus edulis'') and ''Hiatella arctica''. Older individuals move to deeper waters where the seabed is sand or mud and feed on clams such as the Greenland cockle (''Serripes groenlandicus'') ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bivalvia
Bivalvia (), in previous centuries referred to as the Lamellibranchiata and Pelecypoda, is a class of marine and freshwater molluscs Mollusca is the second-largest phylum of invertebrate animals after the Arthropoda, the members of which are known as molluscs or mollusks (). Around 85,000 extant species of molluscs are recognized. The number of fossil species is estim ... that have laterally compressed bodies enclosed by a shell consisting of two hinged parts. As a group, bivalves have no head and they lack some usual molluscan organs, like the radula and the odontophore. They include the clams, oysters, Cockle (bivalve), cockles, mussels, scallops, and numerous other family (biology), families that live in saltwater, as well as a number of families that live in freshwater. The majority are filter feeders. The gills have evolved into Ctenidium (mollusc), ctenidia, specialised organs for feeding and breathing. Most bivalves bury themselves in sediment, where they a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Buccinum Undatum
''Buccinum undatum'', the common whelk or the waved buccinum, is a large, edible marine gastropod in the family Buccinidae, the "true whelks".Fraussen, K.; Gofas, S. (2014). Buccinum undatum Linnaeus, 1758. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=138878 on 2015-02-18 Distribution This species is a familiar part of the marine fauna of the Northern Atlantic and is found on the shores of the United Kingdom, Ireland, France, Norway, Iceland, various other northwest European countries, some Arctic islands, and North America as far south as New Jersey. They prefer colder temperatures, and cannot survive at temperatures above 29 °C.Ten Hallers-Tjabbes, C.C., Everaarts, J.M., Mensink, B.P., & Boon, J.P. (1996) The Decline of the North Sea Whelk (''Buccinum undatum'' L.) between 1970 and 1990: A Natural or Human-induced Event? 17:1-3. pp. 333-43. ''Marine Ecology''. Habitat This species is mainly found on soft b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gastropoda
The gastropods (), commonly known as snails and slugs, belong to a large taxonomic class of invertebrates within the phylum Mollusca called Gastropoda (). This class comprises snails and slugs from saltwater, from freshwater, and from land. There are many thousands of species of sea snails and slugs, as well as freshwater snails, freshwater limpets, and land snails and slugs. The class Gastropoda contains a vast total of named species, second only to the insects in overall number. The fossil history of this class goes back to the Late Cambrian. , 721 families of gastropods are known, of which 245 are extinct and appear only in the fossil record, while 476 are currently extant with or without a fossil record. Gastropoda (previously known as univalves and sometimes spelled "Gasteropoda") are a major part of the phylum Mollusca, and are the most highly diversified class in the phylum, with 65,000 to 80,000 living snail and slug species. The anatomy, behavior, feeding, a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ensis Directus
The Atlantic jackknife clam, ''Ensis leei'', also known as the bamboo clam, American jackknife clam or razor clam, is a large edible Marine (ocean), marine bivalve mollusc found on the North American Atlantic Ocean, Atlantic coast, from Canada to South Carolina. The species has also been Introduced species, introduced to Europe. The name "razor clam" is also used to refer to different species such as the Pacific razor clam (''Siliqua patula)'' or Razor shell (''Ensis magnus)''. Jackknife clams live in sand and mud and are found in intertidal zone, intertidal or subtidal zones in bays and estuaries. Its streamlined shell and strong foot allow Jackknife clams to burrow quickly in wet sand. Jackknife clams are also able to swim by propelling jets of water out of their shells. The Jackknife clam gets its name from their shell's extremely sharp rim and the overall shape bearing a strong resemblance to an old fashioned straight razor. Beachgoers can be injured when the shell is acciden ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mya Truncata
''Mya truncata'', common name the blunt gaper or truncate softshell, is a species of edible saltwater clam, a marine bivalve mollusk in the family Myidae. Description Shells of ''Mya truncata'' can reach a size of about . These bivalves are similar to the soft-shell clams (''Mya arenaria''), but usually they are smaller. Moreover, their shells are less elongated. Valves are rounded in the anterior end and truncated in the posterior end, with a large gape allowing the passage of an extensible siphon that can reach four times the length of the shell. The siphon can be retracted completely into the shell. The two valves are triangular and convex, but the right valve is more convex than the left one. The siphon is protected by a horny sheath and it is provided with small tentacles at its end. The outer surface of the valves is covered with concentric growth lines. It is whitish, while the outermost layer of the valves ( periostracum) may be yellowish, light olive or dark brown. T ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spisula Polynyma
''Spisula'' is a genus of medium-sized to large marine bivalve mollusks or clams in the subfazmily Mactrinae of the family Mactridae, commonly known as surf clams or trough shells. MolluscaBase eds. (2022). MolluscaBase. Spisula Gray, 1837. Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=138159 on 2022-06-20 Species Species in the genus ''Spisula'' include: * ''Spisula adamsi'' Olsson, 1961 * ''Spisula austini'' Lamprell & Whitehead, 1990 * †''Spisula bernayi'' (Cossmann, 1886) * † ''Spisula brombachensis'' S. Schneider & Mandic, 2014 * † ''Spisula couttsi'' Marwick, 1948 * † ''Spisula crassitesta'' (Finlay, 1927) * ''Spisula discors'' (Gray, 1837) * ''Spisula elliptica'' (T. Brown, 1827) * ''Spisula murchisoni'' (Reeve, 1854) * ''Spisula raveneli'' (Conrad, 1832) * ''Spisula sachalinensis'' (Schrenck, 1862) * '' Spisula solida'' ( Linnaeus, 1758) * ''Spisula solidissima'' (Dillwyn, 1817) – Atlanti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Serripes Groenlandicus
''Serripes groenlandicus'', the Greenland cockle, is a species of bivalve mollusc in the family Cardiidae. It can be found along the Atlantic coast of North America, ranging from Greenland to Cape Cod, as well as along the Pacific coast, from Alaska to Washington Washington commonly refers to: * Washington (state), United States * Washington, D.C., the capital of the United States ** A metonym for the federal government of the United States ** Washington metropolitan area, the metropolitan area centered on ....Abbott, R.T. & Morris, P.A. ''A Field Guide to Shells: Atlantic and Gulf Coasts and the West Indies.'' New York: Houghton Mifflin, 1995. 60. References Cardiidae Bivalves described in 1789 {{bivalve-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hiatella Arctica
''Hiatella arctica'', known as the wrinkled rock-borer, the arctic hiatella or the arctic saxicave, is a species of saltwater clam, a marine bivalve mollusc in the family Hiatellidae. The white shell of this mollusc is thick and more or less rectangular, but generally irregular in shape. It is up to 45 mm long. ''Hiatella arctica'' is widespread and found in all the oceans, ranging from the Arctic and Antarctic to the subtropical and tropical zones. It occurs from the low water mark to depths of down to 800 m. It lives on hard substrates, often attached with byssus, for instance in mussel beds or nestling among kelp Kelps are large brown algae seaweeds that make up the order Laminariales. There are about 30 different genera. Despite its appearance, kelp is not a plant - it is a heterokont, a completely unrelated group of organisms. Kelp grows in "underwa ... holdfasts, or hiding in rock crevices and also boring itself into soft rocks. References ''Hiatella arctic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mytilus Edulis
The blue mussel (''Mytilus edulis''), also known as the common mussel, is a medium-sized edible marine (ocean), marine bivalve mollusc in the family (biology), family Mytilidae, the mussels. Blue mussels are subject to commercial use and intensive aquaculture. A species with a large range, empty shells are commonly found on beaches around the world. Systematics and distribution The ''Mytilus edulis'' complex Systematically blue mussel consists of a group of (at least) three closely related taxa of mussels, known as the ''Mytilus edulis'' complex. Collectively they occupy both coasts of the North Atlantic (including the Mediterranean) and of the North Pacific in temperate to polar waters, as well as coasts of similar nature in the Southern Hemisphere. The distribution of the component taxa has been recently modified as a result of human activity. The taxa can hybridise with each other, if present at the same locality. *''Mytilus edulis'' sensu stricto: Native to the North Atla ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Azores
) , motto =( en, "Rather die free than subjected in peace") , anthem= ( en, "Anthem of the Azores") , image_map=Locator_map_of_Azores_in_EU.svg , map_alt=Location of the Azores within the European Union , map_caption=Location of the Azores within the European Union , subdivision_type=Sovereign state , subdivision_name=Portugal , established_title=Settlement , established_date=1432 , established_title3=Autonomous status , established_date3=30 April 1976 , official_languages=Portuguese , demonym= ( en, Azorean) , capital_type= Capitals , capital = Ponta Delgada (executive) Angra do Heroísmo (judicial) Horta (legislative) , largest_city = Ponta Delgada , government_type=Autonomous Region , leader_title1=Representative of the Republic , leader_name1=Pedro Manuel dos Reis Alves Catarino , leader_title2= President of the Legislative Assembly , leader_name2= Luís Garcia , leader_title3= President of the Regional Government , leader_name3=José Manuel Bolieiro , le ... [...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] |
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