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Article: Macrobenthos of a tidal impoundment at the Mai Po Marshes Nature Reserve, Hong Kong

TitleMacrobenthos of a tidal impoundment at the Mai Po Marshes Nature Reserve, Hong Kong
Authors
KeywordsHong Kong
Kandelia
Macrobenthos
Mangrove
Phragmites
Reed
Salinity
Tidal shrimp pond
Issue Date2002
PublisherSpringer Verlag Dordrecht. The Journal's web site is located at http://springerlink.metapress.com/openurl.asp?genre=journal&issn=0018-8158
Citation
Hydrobiologia, 2002, v. 468, p. 193-212 How to Cite?
AbstractThe composition and spatial distribution patterns of the macrobenthic faunal assemblages of an 8-ha tidal impoundment operated as a traditional shrimp pond at the Mai Po Marshes Nature Reserve, Hong Kong, were studied in relation to temporal changes in local environmental conditions. Species richness, abundance and biomass of macrobenthos across 5 different sub-habitats (seaward, middle, and landward parts of open water unvegetated areas, and Phragmites- and Kandelia-dominated, vegetated areas) within the pond were examined bimonthly between January 1997 and January 1998. Grab samples were collected randomly within the sub-habitats. Key physical environmental parameters of the sampling sites were also measured. A total of 46 species of macrobenthos was recorded: 11 polychaetes, 11 molluscs, 13 crustaceans and 11 insects. Mean species density in the five sub-habitats ranged from 0 to 3907 ind·m-2, with mean biomass ranging from 0 to 96.9 g·m-2. The macrobenthos showed spatial and temporal differences among the sub-habitats and across sampling times. Species abundances of Polychaeta, Mollusca and Crustacea were significantly higher in the three open water areas than in the two vegetated (Phragmites- and Kandelia-dominated) areas, with an inverse pattern for Insecta. There were no clear temporal patterns although abundance and biomass generally increased in the cooler months. Results of a canonical correspondence analysis suggest that macrobenthic species richness, abundance and biomass in the open areas were positively correlated with salinity, while water depth, dissolved oxygen and sediment organic matter content had little relationship with the macrobenthic assemblage parameters. Ordination by multi-dimensional scaling suggests that different habitats supported distinct macrobenthic assemblages. The macrobenthic assemblage in the tidal pond was less species rich but denser than those in the neighboring tidal mangrove and mudflat, suggesting that conversion of these areas into extensively managed tidal aquaculture ponds results in reduced species richness in tropical mangrove habitats.
Persistent Identifierhttp://hdl.handle.net/10722/73391
ISSN
2015 Impact Factor: 2.051
2015 SCImago Journal Rankings: 1.043
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorLui, THen_HK
dc.contributor.authorLee, SYen_HK
dc.contributor.authorSadovy, Yen_HK
dc.date.accessioned2010-09-06T06:50:50Z-
dc.date.available2010-09-06T06:50:50Z-
dc.date.issued2002en_HK
dc.identifier.citationHydrobiologia, 2002, v. 468, p. 193-212en_HK
dc.identifier.issn0018-8158en_HK
dc.identifier.urihttp://hdl.handle.net/10722/73391-
dc.description.abstractThe composition and spatial distribution patterns of the macrobenthic faunal assemblages of an 8-ha tidal impoundment operated as a traditional shrimp pond at the Mai Po Marshes Nature Reserve, Hong Kong, were studied in relation to temporal changes in local environmental conditions. Species richness, abundance and biomass of macrobenthos across 5 different sub-habitats (seaward, middle, and landward parts of open water unvegetated areas, and Phragmites- and Kandelia-dominated, vegetated areas) within the pond were examined bimonthly between January 1997 and January 1998. Grab samples were collected randomly within the sub-habitats. Key physical environmental parameters of the sampling sites were also measured. A total of 46 species of macrobenthos was recorded: 11 polychaetes, 11 molluscs, 13 crustaceans and 11 insects. Mean species density in the five sub-habitats ranged from 0 to 3907 ind·m-2, with mean biomass ranging from 0 to 96.9 g·m-2. The macrobenthos showed spatial and temporal differences among the sub-habitats and across sampling times. Species abundances of Polychaeta, Mollusca and Crustacea were significantly higher in the three open water areas than in the two vegetated (Phragmites- and Kandelia-dominated) areas, with an inverse pattern for Insecta. There were no clear temporal patterns although abundance and biomass generally increased in the cooler months. Results of a canonical correspondence analysis suggest that macrobenthic species richness, abundance and biomass in the open areas were positively correlated with salinity, while water depth, dissolved oxygen and sediment organic matter content had little relationship with the macrobenthic assemblage parameters. Ordination by multi-dimensional scaling suggests that different habitats supported distinct macrobenthic assemblages. The macrobenthic assemblage in the tidal pond was less species rich but denser than those in the neighboring tidal mangrove and mudflat, suggesting that conversion of these areas into extensively managed tidal aquaculture ponds results in reduced species richness in tropical mangrove habitats.en_HK
dc.languageengen_HK
dc.publisherSpringer Verlag Dordrecht. The Journal's web site is located at http://springerlink.metapress.com/openurl.asp?genre=journal&issn=0018-8158en_HK
dc.relation.ispartofHydrobiologiaen_HK
dc.subjectHong Kongen_HK
dc.subjectKandeliaen_HK
dc.subjectMacrobenthosen_HK
dc.subjectMangroveen_HK
dc.subjectPhragmitesen_HK
dc.subjectReeden_HK
dc.subjectSalinityen_HK
dc.subjectTidal shrimp ponden_HK
dc.titleMacrobenthos of a tidal impoundment at the Mai Po Marshes Nature Reserve, Hong Kongen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0018-8158&volume=468&spage=193&epage=212&date=2002&atitle=Macrobenthos+of+a+tidal+impoundment+at+the+Mai+Po+Marshes+Nature+Reserve,+Hong+Kongen_HK
dc.identifier.emailSadovy, Y: yjsadovy@hkucc.hku.hken_HK
dc.identifier.authoritySadovy, Y=rp00773en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1023/A:1015281114542en_HK
dc.identifier.scopuseid_2-s2.0-0037081994en_HK
dc.identifier.hkuros73080en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0037081994&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume468en_HK
dc.identifier.spage193en_HK
dc.identifier.epage212en_HK
dc.identifier.isiWOS:000175212000020-
dc.publisher.placeNetherlandsen_HK
dc.identifier.scopusauthoridLui, TH=35844557000en_HK
dc.identifier.scopusauthoridLee, SY=7601394910en_HK
dc.identifier.scopusauthoridSadovy, Y=6603830002en_HK

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