What's the difference between crustacean and shellfish?

Crustacean


Definition:

  • (a.) Of or pertaining to the Crustacea; crustaceous.
  • (n.) An animal belonging to the class Crustacea.

Example Sentences:

  • (1) It is assumed that taurine increases the Ca2+ sensitivity of the force-generating myofilaments in mammalian hearts and crustacean slow skeletal muscle fibres.
  • (2) The implications of these findings for the development and physiological performance of the crustacean motor unit are discussed.
  • (3) The four hosts (Mollusc -- Crustacean -- Odonat -- Amphibian) are obligatory in the life cycle for it is impossible to infect the Insects directly with the cecariae or the frog (tadpoles as well as adults) with the mesocercariae.
  • (4) Using a spectrophotometric method, the kinetics of the crustacean muscle enzyme was compared to the acetylcholinesterase (AChE) on mammalian red blood cells and in the lobster ventral nerve cord.
  • (5) In crustacean nerve 12-14% of the phospholipids was in the form of alkyl ether phospholipids, which in the lobster were approximately half choline-containing and half ethanolamine-containing.
  • (6) Clearance of foreign materials from the hemocoel of decapod crustaceans involves several distinct kinds of cells.
  • (7) Electron microscopy has revealed that chitin from a representative selection of insect orders (plus one crustacean and one arachnid) is localized in crystallites about 2.8 nm across.
  • (8) The crustacean Na+-H+ antiporter therefore bears similarities to the vertebrate antiporter but is uniquely electrogenic.
  • (9) The highest levels were found in hepatopancreas from crustaceans.
  • (10) From the vantage point of my 10-centimetre porthole, I glimpsed life forms with outlines like blown glass occasionally drifting past our lights, while small crustaceans hovered around like flies, keeping pace with our descent.
  • (11) The significance of the terminal residues of the red pigment-concentrating hormone (RPCH: Glu-Leu-Asn-Phe-Ser-Pro-Gly-Trp-NH2) for its blanching effect on crustacean chromatophores has been investigated.
  • (12) You’d be hard pushed to find half a dozen fresh oysters at this great price.” Frozen food giant Iceland sparked lobster wars last month with what it claimed was the cheapest cooked crustacean in Britain.
  • (13) Foods causing most prominent symptoms among patients in group A included legumes, tree nuts, crustaceans, and fish.
  • (14) In the walking legs of decapod crustaceans, intersegmental reflex actions originate from various joint proprioceptors.
  • (15) Ovaries from the spider crab, Libinia emarginata L. were studied to learn more of vitellogenesis in crustaceans.
  • (16) However, some responses were inhibitory, the first such demonstration in aquatic crustaceans.
  • (17) These include insects, chelicerates, most crustaceans, annelids, priapulids, nematodes, and some sipunculids.
  • (18) The pentapeptide proctolin modulates the activity of the rhythmic pattern generators in the crustacean stomatogastric nervous system.
  • (19) Tilapia is an aquaponics staple, but crustaceans are also up for discussion.
  • (20) Ross said researchers have identified four new species of fish, a new type of starfish and several new species of crustaceans living in the deepwater reefs.

Shellfish


Definition:

  • (n.) Any aquatic animal whose external covering consists of a shell, either testaceous, as in oysters, clams, and other mollusks, or crustaceous, as in lobsters and crabs.

Example Sentences:

  • (1) To simulate naturally polluted shellfish as closely as technically possible, shellfish were polluted with minimal amounts of virus.
  • (2) Schemes employing solid media, such as the roll tube and pour plate methods, underestimated faecal contamination in shellfish tissue compared with a liquid MPN multiple test-tube method using minerals-modified-glutamate broth (MMGB) as primary enrichment medium.
  • (3) They harvest shellfish standing in the water or meandering through mangrove forests on the shore.
  • (4) We were unable to establish a significant relationship between the presence of the bacterium and that of its specific bacteriophages in the shellfish.
  • (5) These effects were observed in 5 and 10% shellfish feeding.
  • (6) "Fisherwomen, who before in a week would get 20 to 30 kilos of shellfish, now take a whole week to get 2 or 3 kilos," says De Alcántara, sitting on a folding metal chair in a dusty meeting hall.
  • (7) Provocation tests by eating foods such as eggs, meats, and shellfish reproduced the above-mentioned bladder disorders.
  • (8) Evidence is presented which establishes that mackerel fed in captivity can, by relay from contaminated shellfish via sand eels, accumulate paralytic shellfish poisons (PSP) in the edible flesh at a level (250 micrograms saxitoxin equivalents per kg) similar to that in the contaminated shellfish.
  • (9) injections of dinophysistoxin-1 and pectenotoxin-1, causative agents of diarrhetic shellfish poisoning.
  • (10) The shellfish also contained decarbamoyl toxins (dc-GTX II and dc-GTX-III) at approximately 2% of the total profile.
  • (11) These studies suggest the possibility that patients sensitized by exposure to caddis fly antigens could develop allergic reactions during their first exposure to shellfish or to their first bee sting.
  • (12) When the two thirds of the subjects who had been exposed were classified according to the frequency with which they had recently consumed any type of raw shellfish, there was a clear dose-response relation.
  • (13) Another shellfish sterol, 24-methylene cholesterol, also stimulated ACAT in human macrophages, but most of the xanthomatosis-related sterols did not stimulate ACAT.
  • (14) A reversed-phase high-performance liquid chromatographic method was developed to detect oxytetracycline (OTC) in three species of marine shellfish (Crassostrea gigas, Ruditapes philippinarum and Scrobicularia plana).
  • (15) Thin-layer chromatography and high performance liquid chromatography results indicate that Aphanizomenon flos-aquae NH-5 may produce paralytic shellfish poisons, mainly neo-saxitoxin and saxitoxin.
  • (16) Ten paralytic shellfish toxins [saxitoxin, neosaxitoxin, B-1, B-2, gonyautoxin 1, 2, and 3 (i.e., GTX-1, GTX-2, and GTX-3), C-1, C-2, and C-3] were oxidized at room temperature under mildly basic conditions with hydrogen peroxide or periodic acid.
  • (17) wt of 23,000 was identified in foot homogenate derived from paralytic shellfish poisoning (PSP) contaminated butter clams and was found to cross-react with crab-saxitoxin-induced protein (SIP) antiserum.
  • (18) A study was carried out to further evaluate the practicability of viral depuration by assaying individual shellfish.
  • (19) Other matters for investigation are: methods for quantitatively detecting viruses adsorbed on solids, the virus-removal capability of soils, better virus indicators, virus concentration in shellfish, the frequency of infection in man brought about by swallowing small numbers of viruses in water, the epidemiology of virus infection in man by the water route, the effect of viruses of nonhuman origin on man, and the occurrence of tumour-inducing agents in water.
  • (20) The control measures consisted of the prohibition of the harvest and sale of all bivalve mollusks as well as a public warning to avoid the consumption of such shellfish.