Matches in DBpedia 2015-10 for { <http://dbpedia.org/resource/Bivalvia> ?p ?o }
- Bivalvia abstract "The Bivalvia, in previous centuries referred to as the Lamellibranchiata and Pelecypoda, comprise a class of marine and freshwater molluscs that have laterally compressed bodies enclosed by a shell consisting of two hinged parts. They have no head, and they also lack a radula. Bivalves include clams, oysters, cockles, mussels, scallops, and numerous other 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 ctenidia, specialised organs for feeding and breathing. Most bivalves bury themselves in sediment, where they are relatively safe from predation. Others lie on the sea floor or attach themselves to rocks or other hard surfaces. A few bore into wood, clay or stone and live inside these substances. Some bivalves, such as the scallops, can swim.The shell of a bivalve is composed of calcium carbonate, and consists of two, usually similar, parts called valves. These are joined together along one edge (the hinge line) by a flexible ligament that, usually in conjunction with interlocking "teeth" on each of the valves, forms the hinge. This arrangement allows the shell to be opened and closed without the two halves becoming disarticulated. The shell is typically bilaterally symmetrical, with the hinge lying in the sagittal plane. Adult shell sizes of bivalves vary from fractions of a millimetre to over a metre in length, but the majority of species do not exceed 10 cm (4 in).Bivalves have long been a part of the diet of coastal human populations. Oysters were cultured in ponds by the Romans, and mariculture has more recently become an important source of bivalves for food. Modern knowledge of molluscan reproductive cycles has led to the development of hatcheries and new culture techniques. A better understanding of the potential hazards of eating raw or undercooked shellfish has led to improved storage and processing. Pearl oysters (the common name of two very different families in saltwater and freshwater) are the most common source of natural pearls. The shells of bivalves are used in craftwork, and the manufacture of jewellery and buttons. Bivalves have also been used in the biocontrol of pollution.Bivalves appear in the fossil record first in the early Cambrian more than 500 million years ago. The total number of living species is approximately 9,200. These species are placed within 1,260 genera and 106 families. Marine bivalves (including brackish water and estuarine species) represent about 8,000 species, combined in four subclasses and 99 families with 1,100 genera. The largest recent marine families are Veneridae, with more than 680 species and the Tellinidae and Lucinidae, each with over 500 species. The freshwater bivalves include seven families, the largest of which is the Unionidae, with about 700 species.".
- Bivalvia thumbnail Haeckel_Acephala.jpg?width=300.
- Bivalvia wikiPageID "202240".
- Bivalvia wikiPageLength "117996".
- Bivalvia wikiPageOutDegree "510".
- Bivalvia wikiPageRevisionID "679384673".
- Bivalvia wikiPageWikiLink 10th_edition_of_Systema_Naturae.
- Bivalvia wikiPageWikiLink Abyssal_zone.
- Bivalvia wikiPageWikiLink Adamussium.
- Bivalvia wikiPageWikiLink Adamussium_colbecki.
- Bivalvia wikiPageWikiLink Adductor_muscles_(bivalve).
- Bivalvia wikiPageWikiLink Algal_bloom.
- Bivalvia wikiPageWikiLink Amebocyte.
- Bivalvia wikiPageWikiLink Amino_acid.
- Bivalvia wikiPageWikiLink Amnesic_shellfish_poisoning.
- Bivalvia wikiPageWikiLink Amoebocyte.
- Bivalvia wikiPageWikiLink Amphibious_fish.
- Bivalvia wikiPageWikiLink Anadara_subcrenata.
- Bivalvia wikiPageWikiLink Anatinidae.
- Bivalvia wikiPageWikiLink Anatomical_terms_of_location.
- Bivalvia wikiPageWikiLink Animal_shell.
- Bivalvia wikiPageWikiLink Anomalodesmata.
- Bivalvia wikiPageWikiLink Anomiidae.
- Bivalvia wikiPageWikiLink Anomioidea.
- Bivalvia wikiPageWikiLink Aorta.
- Bivalvia wikiPageWikiLink Aragonite.
- Bivalvia wikiPageWikiLink Archiheterodonta.
- Bivalvia wikiPageWikiLink Arcidae.
- Bivalvia wikiPageWikiLink Arcoida.
- Bivalvia wikiPageWikiLink Arcoidea.
- Bivalvia wikiPageWikiLink Arcticoidea.
- Bivalvia wikiPageWikiLink Arhouriella.
- Bivalvia wikiPageWikiLink Ark_clam.
- Bivalvia wikiPageWikiLink Ark_shell.
- Bivalvia wikiPageWikiLink Atlantic_jackknife_clam.
- Bivalvia wikiPageWikiLink Atrium_(heart).
- Bivalvia wikiPageWikiLink Autotomy.
- Bivalvia wikiPageWikiLink Axe.
- Bivalvia wikiPageWikiLink Axon.
- Bivalvia wikiPageWikiLink Bathymodiolus_thermophilus.
- Bivalvia wikiPageWikiLink Beak_(bivalve).
- Bivalvia wikiPageWikiLink Bioindicator.
- Bivalvia wikiPageWikiLink Biological_membrane.
- Bivalvia wikiPageWikiLink Biological_pigment.
- Bivalvia wikiPageWikiLink Biological_specificity.
- Bivalvia wikiPageWikiLink Biomonitoring.
- Bivalvia wikiPageWikiLink Biotoxin.
- Bivalvia wikiPageWikiLink Bivalvia.
- Bivalvia wikiPageWikiLink Black_market.
- Bivalvia wikiPageWikiLink Bladder.
- Bivalvia wikiPageWikiLink Blood_serum.
- Bivalvia wikiPageWikiLink Blue_mussel.
- Bivalvia wikiPageWikiLink Botticelli.
- Bivalvia wikiPageWikiLink Brachiopod.
- Bivalvia wikiPageWikiLink Brachiopoda.
- Bivalvia wikiPageWikiLink Brackish_water.
- Bivalvia wikiPageWikiLink Brain.
- Bivalvia wikiPageWikiLink Bryozoa.
- Bivalvia wikiPageWikiLink Buccinidae.
- Bivalvia wikiPageWikiLink Buluniella.
- Bivalvia wikiPageWikiLink Buoyancy.
- Bivalvia wikiPageWikiLink Button.
- Bivalvia wikiPageWikiLink Byssus.
- Bivalvia wikiPageWikiLink CITES.
- Bivalvia wikiPageWikiLink Cadmium.
- Bivalvia wikiPageWikiLink Calcareous.
- Bivalvia wikiPageWikiLink Calcite.
- Bivalvia wikiPageWikiLink Calcium_carbonate.
- Bivalvia wikiPageWikiLink Calcium_phosphate.
- Bivalvia wikiPageWikiLink California.
- Bivalvia wikiPageWikiLink Calyptogena_magnifica.
- Bivalvia wikiPageWikiLink Cambrian.
- Bivalvia wikiPageWikiLink Cambrian_explosion.
- Bivalvia wikiPageWikiLink Camino_de_Santiago.
- Bivalvia wikiPageWikiLink Camya.
- Bivalvia wikiPageWikiLink Capillary.
- Bivalvia wikiPageWikiLink Carboniferous.
- Bivalvia wikiPageWikiLink Cardiidae.
- Bivalvia wikiPageWikiLink Cardioidea.
- Bivalvia wikiPageWikiLink Carditoida.
- Bivalvia wikiPageWikiLink Carl_Linnaeus.
- Bivalvia wikiPageWikiLink Carnivore.
- Bivalvia wikiPageWikiLink Carolus_Linnaeus.
- Bivalvia wikiPageWikiLink Category:Bivalves.
- Bivalvia wikiPageWikiLink Category:Cambrian_first_appearances.
- Bivalvia wikiPageWikiLink Cerastoderma_edule.
- Bivalvia wikiPageWikiLink Chamidae.
- Bivalvia wikiPageWikiLink Chamoidea.
- Bivalvia wikiPageWikiLink Channeled_whelk.
- Bivalvia wikiPageWikiLink Chela_(organ).
- Bivalvia wikiPageWikiLink Chemoreceptor.
- Bivalvia wikiPageWikiLink Chitin.
- Bivalvia wikiPageWikiLink Cilia.
- Bivalvia wikiPageWikiLink Cilium.
- Bivalvia wikiPageWikiLink Circulatory_system.
- Bivalvia wikiPageWikiLink Cladistics.
- Bivalvia wikiPageWikiLink Clam.
- Bivalvia wikiPageWikiLink Clam_shrimp.
- Bivalvia wikiPageWikiLink Class_(biology).
- Bivalvia wikiPageWikiLink Clavagelloidea.