PPT-Molluscs

By Sameena Khokhar The term m ollusc means soft A mollusc is a diverse animal and is a member of the phylum Mollusca group Around eighty five thousand species of molluscs have been recognized Molluscs reproduce sexually Slugs and snails mate to fertilize eggs Aquatic molluscs lay eggs that hatch into small freeswimming larvae Many molluscs have hard external shells which they use for protection Molluscs range in size and are usually found in marine habitats but a few . orals molluscs with attractive shells starfish and pufferfish are particularly popular Gastropods and bivalves have been collected for centuries both as individual or ornamental shells and for shellcraft jewellery and handicrafts that are made of sh Amendments 2013 evised 2014 brPage 2br CODEX STAN 292 2008 1 SCOPE This tandard applies to live bivalve molluscs and to raw bivalve m olluscs that have been shucked andor frozen andor processed to reduce or limit target organisms while essentially r INGREDIENTS: Cereals containing gluten Eggs Fish Peanuts Nuts Soybeans Milk Celery/ Celeriac Mustard Sesame Lupin Sulphur dioxide Crustaceans Molluscs SUITABLE FOR VEGETARIAN BASES Classic Crust Whe 473 Responses of freshwater molluscs to environmental factors in Southern Brazil wetlands Maltchik, L. a *, Stenert, C. a , Kotzian, CB. b and Pereira, D. c a Universidade do Vale do Rio dos Sinos & Correspondingauthor:molluscs,thegreatestproportionofwhicharebivalves,wases-timatedat4388967tonsin1994(FAO1996).However,highdensitycultureconditionsmeanthatmanyaquaculturedani-malsareunderstressconditi Bivalve Molluscs Guidance on Procedures to Minimise Risks to Food Safety in Bivalve Mollusc Purification 1st Edition, March 1999 Seafish Guidance on P Family/Common Name Code SHELL FISHES MOLLUSCS GASTROPODS Dentalium Dentaliidae 4500 D . elephantinum Elephant Tusk Shell 4501 D . javanum 4502 D. aprinum 4503 D. tomlini 4504 D. mannarense 450A D. e 1. Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 272. Corbulid Radiations in Miocene Lake Pebas (Western Amazonia) . . . . PHYLUM. Deanne L. de . Asis. Jessica . Consad. KINGDOM. MOLLUSCA. introduction. content. conclusion. Evolution. Definition. Life History and Ecology. Taxonomy. Morphology. Relations with Humans. Diversity. By Hannah b 7q. Snails. The word . snail. is a . common name. for almost all members of the . molluscan. class . Gastropoda. that have coiled . shells. in the adult stage. When the word snail is used in a general sense, it includes sea snails, land snails and freshwater snails. Snails lacking a shell or having only a very small one are usually called . Prepared by : Nada H. Lubbad. Introduction. :. Soft bodied animals.. - . name from Latin word “ mollus” meaning soft.. The second largest phylum.. The scientific study of Mollusks is . . Class . Scaphopoda. . (300 species). tooth shells, tusk shells. all . are burrowing marine animals. most distinctive characteristic – conical shell open at both ends. Class . Monoplacophora. undivided arched shell. Mollusca. The . Chitons. , Gastropods, Bivalves and Cephalopods. The . molluscs. are a diverse group of soft bodied invertebrates. Some varieties of . molluscs. produce an external shell (“test” or “valve”)made of calcium carbonate. The term . m. ollusc. . means “soft.” A . mollusc . is a diverse animal and is a member of the phylum Mollusca group. Around eighty five thousand species of molluscs have been recognized. Molluscs reproduce sexually. Slugs and snails mate to fertilize eggs. Aquatic molluscs lay eggs that hatch into small free-swimming larvae. Many molluscs have hard external shells which they use for protection. Molluscs range in size and are usually found in marine habitats, but a few .