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Article: Spatio-temporal changes of marine macrobenthic community in sub-tropical waters upon recovery from eutrophication. II. Life-history traits and feeding guilds of polychaete community

TitleSpatio-temporal changes of marine macrobenthic community in sub-tropical waters upon recovery from eutrophication. II. Life-history traits and feeding guilds of polychaete community
Authors
KeywordsEutrophication
Feeding guilds
Life-history traits
Polychaete community
Recovery
Issue Date2008
PublisherPergamon. The Journal's web site is located at http://www.elsevier.com/locate/marpolbul
Citation
Marine Pollution Bulletin, 2008, v. 56 n. 2, p. 297-307 How to Cite?
AbstractA two-year study was conducted in the vicinity of a harbour in sub-tropical Hong Kong, to examine the progress of recovery of macrobenthic community, based on analyses of both life-history traits and trophic guilds of polychaetes, upon cessation of organic pollution caused by sewage discharge. Seventy seven out of 83 species collected were classified under four ecological groups based on the life-history traits and sensitivity to organic gradients. The mean ATZI marine biotic index (AMBI) derived from these ecological groups showed spatial difference among the five sampling locations. In particular, the presence of different percentages of polychaete species from Groups III (unbalanced community) and IV (polluted community) suggested the presence of pollution stress in certain degree at all sampling locations. However, no significant temporal changes were noted over the study period. From all polychaete species identified, they were classified into 13 feeding guilds. The mean diversity of these feeding guilds at most of the sampling locations was significantly higher than that at one of the inside-harbour locations. The composition of feeding guilds was also significantly different spatially. At one of the inside-harbour locations, the dominant feeding guilds were motile/discretely motile surface deposit feeders with tentaculates or unarmed pharynx, and motile omnivores with jawed pharynx in the first year of study, but were replaced by motile, jawed carnivores in the second year of study. The increased proportion of carnivores over the study period can be seen as a sign of recovery in the community structure since abundance of predators is commonly higher in habitats with better environmental quality. The implications of using life-history traits and feeding guild analyses for benthic community are discussed. © 2007 Elsevier Ltd. All rights reserved.
Persistent Identifierhttp://hdl.handle.net/10722/92668
ISSN
2015 Impact Factor: 3.099
2015 SCImago Journal Rankings: 1.264
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorCheung, SGen_HK
dc.contributor.authorLam, NWYen_HK
dc.contributor.authorWu, RSSen_HK
dc.contributor.authorShin, PKSen_HK
dc.date.accessioned2010-09-17T10:53:37Z-
dc.date.available2010-09-17T10:53:37Z-
dc.date.issued2008en_HK
dc.identifier.citationMarine Pollution Bulletin, 2008, v. 56 n. 2, p. 297-307en_HK
dc.identifier.issn0025-326Xen_HK
dc.identifier.urihttp://hdl.handle.net/10722/92668-
dc.description.abstractA two-year study was conducted in the vicinity of a harbour in sub-tropical Hong Kong, to examine the progress of recovery of macrobenthic community, based on analyses of both life-history traits and trophic guilds of polychaetes, upon cessation of organic pollution caused by sewage discharge. Seventy seven out of 83 species collected were classified under four ecological groups based on the life-history traits and sensitivity to organic gradients. The mean ATZI marine biotic index (AMBI) derived from these ecological groups showed spatial difference among the five sampling locations. In particular, the presence of different percentages of polychaete species from Groups III (unbalanced community) and IV (polluted community) suggested the presence of pollution stress in certain degree at all sampling locations. However, no significant temporal changes were noted over the study period. From all polychaete species identified, they were classified into 13 feeding guilds. The mean diversity of these feeding guilds at most of the sampling locations was significantly higher than that at one of the inside-harbour locations. The composition of feeding guilds was also significantly different spatially. At one of the inside-harbour locations, the dominant feeding guilds were motile/discretely motile surface deposit feeders with tentaculates or unarmed pharynx, and motile omnivores with jawed pharynx in the first year of study, but were replaced by motile, jawed carnivores in the second year of study. The increased proportion of carnivores over the study period can be seen as a sign of recovery in the community structure since abundance of predators is commonly higher in habitats with better environmental quality. The implications of using life-history traits and feeding guild analyses for benthic community are discussed. © 2007 Elsevier Ltd. All rights reserved.en_HK
dc.languageengen_HK
dc.publisherPergamon. The Journal's web site is located at http://www.elsevier.com/locate/marpolbulen_HK
dc.relation.ispartofMarine Pollution Bulletinen_HK
dc.subjectEutrophicationen_HK
dc.subjectFeeding guildsen_HK
dc.subjectLife-history traitsen_HK
dc.subjectPolychaete communityen_HK
dc.subjectRecoveryen_HK
dc.titleSpatio-temporal changes of marine macrobenthic community in sub-tropical waters upon recovery from eutrophication. II. Life-history traits and feeding guilds of polychaete communityen_HK
dc.typeArticleen_HK
dc.identifier.emailWu, RSS: rudolfwu@hku.hken_HK
dc.identifier.authorityWu, RSS=rp01398en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1016/j.marpolbul.2007.10.019en_HK
dc.identifier.pmid18061624-
dc.identifier.scopuseid_2-s2.0-38949095643en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-38949095643&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume56en_HK
dc.identifier.issue2en_HK
dc.identifier.spage297en_HK
dc.identifier.epage307en_HK
dc.identifier.isiWOS:000254101900023-
dc.publisher.placeUnited Kingdomen_HK
dc.identifier.scopusauthoridCheung, SG=7202473456en_HK
dc.identifier.scopusauthoridLam, NWY=23489314300en_HK
dc.identifier.scopusauthoridWu, RSS=7402945079en_HK
dc.identifier.scopusauthoridShin, PKS=7004445653en_HK

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