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Article: The influence of multiple environmental stressors on the limpet Cellana toreuma during the summer monsoon season in Hong Kong

TitleThe influence of multiple environmental stressors on the limpet Cellana toreuma during the summer monsoon season in Hong Kong
Authors
KeywordsMortality event
Osmotic stress
Rain
Salinity
Temperature
Tidepool
Issue Date2009
PublisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/jembe
Citation
Journal Of Experimental Marine Biology And Ecology, 2009, v. 375 n. 1-2, p. 70-75 How to Cite?
AbstractAlthough environmental stressors affect natural systems in a multitude of ways, the interactive effect of multiple stressors on ecological assemblages remains largely misunderstudied. On tropical shores which experience seasonal monsoons, rocky intertidal habitats are physiologically stressful environments, being strongly affected by high temperatures and monsoon rains during emersion. In Hong Kong the limpet, Cellana toreuma, often takes refuge in mid-shore tidepools. In summer, these populations experience high mortality, probably as a result of stressful environmental conditions during low-spring tide days with high temperatures and/or intense rainfall periods can occur. Laboratory experiments were designed to mimic the effects of temperature stress (and increasing pool salinity) and reduced salinity as a result of monsoon rains on C. toreuma in tidepools. In general, haemolymph osmolality increased with salinity and limpet mortality increased with temperature. As salinity decreased after simulated rainfall, haemolymph osmolality (after 60 min) and survival (after 180 min) were significantly lower than in control treatments. Salinity fluctuations, coupled with high temperatures during emersion had both sub-lethal physiological effects and lethal effects on limpets in tidepools. Conducting experiments of multiple stressors simultaneously, however, revealed no interaction between hot temperatures and salinity variation, both of which operated independently for different response variables. Individually, therefore, hot temperatures and large salinity changes associated with the wet monsoon season are likely to play an important role in the population dynamics of intertidal species such as C. toreuma, and as a result will influence the structure and functioning of tropical rocky shores. © 2009 Elsevier B.V. All rights reserved.
Persistent Identifierhttp://hdl.handle.net/10722/89280
ISSN
2015 Impact Factor: 1.796
2015 SCImago Journal Rankings: 1.029
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorFirth, LBen_HK
dc.contributor.authorWilliams, GrayAen_HK
dc.date.accessioned2010-09-06T09:54:52Z-
dc.date.available2010-09-06T09:54:52Z-
dc.date.issued2009en_HK
dc.identifier.citationJournal Of Experimental Marine Biology And Ecology, 2009, v. 375 n. 1-2, p. 70-75en_HK
dc.identifier.issn0022-0981en_HK
dc.identifier.urihttp://hdl.handle.net/10722/89280-
dc.description.abstractAlthough environmental stressors affect natural systems in a multitude of ways, the interactive effect of multiple stressors on ecological assemblages remains largely misunderstudied. On tropical shores which experience seasonal monsoons, rocky intertidal habitats are physiologically stressful environments, being strongly affected by high temperatures and monsoon rains during emersion. In Hong Kong the limpet, Cellana toreuma, often takes refuge in mid-shore tidepools. In summer, these populations experience high mortality, probably as a result of stressful environmental conditions during low-spring tide days with high temperatures and/or intense rainfall periods can occur. Laboratory experiments were designed to mimic the effects of temperature stress (and increasing pool salinity) and reduced salinity as a result of monsoon rains on C. toreuma in tidepools. In general, haemolymph osmolality increased with salinity and limpet mortality increased with temperature. As salinity decreased after simulated rainfall, haemolymph osmolality (after 60 min) and survival (after 180 min) were significantly lower than in control treatments. Salinity fluctuations, coupled with high temperatures during emersion had both sub-lethal physiological effects and lethal effects on limpets in tidepools. Conducting experiments of multiple stressors simultaneously, however, revealed no interaction between hot temperatures and salinity variation, both of which operated independently for different response variables. Individually, therefore, hot temperatures and large salinity changes associated with the wet monsoon season are likely to play an important role in the population dynamics of intertidal species such as C. toreuma, and as a result will influence the structure and functioning of tropical rocky shores. © 2009 Elsevier B.V. All rights reserved.en_HK
dc.languageengen_HK
dc.publisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/jembeen_HK
dc.relation.ispartofJournal of Experimental Marine Biology and Ecologyen_HK
dc.rightsJournal of Experimental Marine Biology and Ecology. Copyright © Elsevier BV.en_HK
dc.subjectMortality eventen_HK
dc.subjectOsmotic stressen_HK
dc.subjectRainen_HK
dc.subjectSalinityen_HK
dc.subjectTemperatureen_HK
dc.subjectTidepoolen_HK
dc.titleThe influence of multiple environmental stressors on the limpet Cellana toreuma during the summer monsoon season in Hong Kongen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0022-0981&volume=375&issue=1-2&spage=70&epage=75&date=2009&atitle=The+influence+of+multiple+environmental+stressors+on+the+limpet+Cellana+toreuma+during+the+summer+monsoon+season+in+Hong+Kongen_HK
dc.identifier.emailWilliams, GrayA: hrsbwga@hkucc.hku.hken_HK
dc.identifier.authorityWilliams, GrayA=rp00804en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1016/j.jembe.2009.05.011en_HK
dc.identifier.scopuseid_2-s2.0-67649094086en_HK
dc.identifier.hkuros163333en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-67649094086&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume375en_HK
dc.identifier.issue1-2en_HK
dc.identifier.spage70en_HK
dc.identifier.epage75en_HK
dc.identifier.isiWOS:000268403200010-
dc.publisher.placeNetherlandsen_HK
dc.identifier.scopusauthoridFirth, LB=24465213500en_HK
dc.identifier.scopusauthoridWilliams, GrayA=7406082821en_HK
dc.identifier.citeulike5185231-

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