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Article: Sand elimination by the asiatic hard clam Meretrix meretrix (L.): Influences of temperature, salinity and season

TitleSand elimination by the asiatic hard clam Meretrix meretrix (L.): Influences of temperature, salinity and season
Authors
KeywordsDepuration
Salinity
Sand Elimination
Season
Temperature
Issue Date2004
PublisherNational Shellfisheries Association, Inc. The Journal's web site is located at http://www.shellfish.org/pubs/jsr.htm
Citation
Journal Of Shellfish Research, 2004, v. 23 n. 2, p. 421-427 How to Cite?
AbstractClams, being filter-feeders that burrow into sand, tend to accumulate sand in their body tissues. Depuration reduces the clams' gut contents and eliminates sand from different body fractions, providing some cleansing and ensuring that they are safe for human consumption. The Asiatic hard clam Meretrix meretrix (Bivalvia: Veneridae) is a commercially important species inhabiting sand flats of Hong Kong and Southeast Asia. In this laboratory study, the effects of temperature and salinity on the rate and profile of sand elimination in M. meretrix were studied during winter and summer using a 2 x 2 factorial design (i.e., two temperatures 20°C and 30°C, and two salinities 15‰ and 30‰). Sand removal rate was measured in terms of a decrease in inorganic content (i.e., ash) over a 72-h period. In general, sand was removed from the gut and body tissues and transferred to the external body fluid for subsequent discharge to the ambient water. Meretrix meretrix exhibited significantly lower sand removal rates in summer than in winter across all treatments, whereas the highest sand removal rate was observed at 20°C and 15‰ in both seasons. The sand removal rate of M. meretrix is, therefore, not only affected by temperature and salinity, but also strongly associated with natural, seasonal, effects. These findings have important implications for optimizing conditions for sand elimination of this species for the shellfish industry in Asia.
Persistent Identifierhttp://hdl.handle.net/10722/179060
ISSN
2015 Impact Factor: 0.829
2015 SCImago Journal Rankings: 0.496
References

 

DC FieldValueLanguage
dc.contributor.authorLui, KKYen_US
dc.contributor.authorLeung, KMYen_US
dc.date.accessioned2012-12-19T09:51:42Z-
dc.date.available2012-12-19T09:51:42Z-
dc.date.issued2004en_US
dc.identifier.citationJournal Of Shellfish Research, 2004, v. 23 n. 2, p. 421-427en_US
dc.identifier.issn0730-8000en_US
dc.identifier.urihttp://hdl.handle.net/10722/179060-
dc.description.abstractClams, being filter-feeders that burrow into sand, tend to accumulate sand in their body tissues. Depuration reduces the clams' gut contents and eliminates sand from different body fractions, providing some cleansing and ensuring that they are safe for human consumption. The Asiatic hard clam Meretrix meretrix (Bivalvia: Veneridae) is a commercially important species inhabiting sand flats of Hong Kong and Southeast Asia. In this laboratory study, the effects of temperature and salinity on the rate and profile of sand elimination in M. meretrix were studied during winter and summer using a 2 x 2 factorial design (i.e., two temperatures 20°C and 30°C, and two salinities 15‰ and 30‰). Sand removal rate was measured in terms of a decrease in inorganic content (i.e., ash) over a 72-h period. In general, sand was removed from the gut and body tissues and transferred to the external body fluid for subsequent discharge to the ambient water. Meretrix meretrix exhibited significantly lower sand removal rates in summer than in winter across all treatments, whereas the highest sand removal rate was observed at 20°C and 15‰ in both seasons. The sand removal rate of M. meretrix is, therefore, not only affected by temperature and salinity, but also strongly associated with natural, seasonal, effects. These findings have important implications for optimizing conditions for sand elimination of this species for the shellfish industry in Asia.en_US
dc.languageengen_US
dc.publisherNational Shellfisheries Association, Inc. The Journal's web site is located at http://www.shellfish.org/pubs/jsr.htmen_US
dc.relation.ispartofJournal of Shellfish Researchen_US
dc.subjectDepurationen_US
dc.subjectSalinityen_US
dc.subjectSand Eliminationen_US
dc.subjectSeasonen_US
dc.subjectTemperatureen_US
dc.titleSand elimination by the asiatic hard clam Meretrix meretrix (L.): Influences of temperature, salinity and seasonen_US
dc.typeArticleen_US
dc.identifier.emailLeung, KMY: kmyleung@hku.hken_US
dc.identifier.authorityLeung, KMY=rp00733en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.scopuseid_2-s2.0-4644286992en_US
dc.identifier.hkuros97959-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-4644286992&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume23en_US
dc.identifier.issue2en_US
dc.identifier.spage421en_US
dc.identifier.epage427en_US
dc.publisher.placeUnited Statesen_US
dc.identifier.scopusauthoridLui, KKY=7103390010en_US
dc.identifier.scopusauthoridLeung, KMY=7401860738en_US

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