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• W2012370811 abstract "MEPS Marine Ecology Progress Series Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout the JournalEditorsTheme Sections MEPS 276:25-35 (2004) - doi:10.3354/meps276025 Spatial patterns of soft-sediment benthic diversity in subtropical Hong Kong waters Paul K. S. Shin1, Kari E. Ellingsen2,* 1Department of Biology and Chemistry, City University of Hong Kong, Hong Kong, SAR 2Department of Biology, University of Oslo, PB 1064 Blindern, 0316 Oslo, Norway *Corresponding author. Email: k.e.ellingsen@bio.uio.no ABSTRACT: It has long been assumed that, just as on land, a decline in diversity from the tropics to the poles is a feature of the marine environment, yet little is known about patterns of diversity in tropical/subtropical areas. Soft-sediment macrobenthos data from the entire Hong Kong waters (22°N, 113-114°E) were used to examine faunal patterns in a subtropical area. Grab samples were taken from a depth range of 5 to 47 m at 101 sites on a spatial sampling scale of 1100 km2. A total of 386 species belonging to 12 phyla was recorded in 50.5 m2 of sediment collected from the 1100 km2 sampling area. Species richness (alpha diversity) of the samples was low (mean 35 species) but highly variable (10 to 78 species). Relationships between community structure and environmental variables were weak. The number of rare species was high: 38% of the species were represented by 1 or 2 individuals, 45% were restricted to 1 or 2 sites, and no species spanned the whole sampling area. Polychaetes displayed the highest species richness, followed by molluscs and crustaceans. Molluscs were more restricted in their distribution than the other dominant groups, whereas polychaetes had the highest proportion of widespread species. Beta diversity, measured as Whittaker¹s βW and Bray-Curtis similarity, was high. Beta diversity varied among the dominant groups and was highest for molluscs, followed by crustaceans and polychaetes. The faunal patterns changed with spatial scale. The study shows that patterns of diversity depend considerably on which element of biodiversity is measured. KEY WORDS: Soft-sediment communities · Marine biodiversity · Alpha diversity · Beta diversity · Rarity · Scale Full text in pdf format PreviousNextExport citation RSS - Facebook - Tweet - linkedIn Cited by Published in MEPS Vol. 276. Online publication date: August 02, 2004 Print ISSN: 0171-8630; Online ISSN: 1616-1599 Copyright © 2004 Inter-Research." @default.
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• W2012370811 title "Spatial patterns of soft-sediment benthic diversity in subtropical Hong Kong waters" @default.
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