Intro | Search taxa | Taxon tree | Sources | Webservice | Statistics | Editors | Log in

RAS source details

Zhang, G.T. & C.K. Wong. (2011). Changes in the planktonic copepod community in a landlocked bay in the subtropical coastal waters of Hong Kong during recovery from eutrophication. In: Hwang, J.S. & K. Martens (eds.) Hydrobiologia. 10th International Conference on Copepoda in Pattaya, Thailand, 13 - 19 July 2008. 338 pp. 666(1):277-288.
152171
10.1007/s10750-010-0422-5 [view]
Zhang, G.T. & C.K. Wong
2011
Changes in the planktonic copepod community in a landlocked bay in the subtropical coastal waters of Hong Kong during recovery from eutrophication.
In: Hwang, J.S. & K. Martens (eds.) Hydrobiologia. 10th International Conference on Copepoda in Pattaya, Thailand, 13 - 19 July 2008. 338 pp.
666(1):277-288.
Publication
Available for editors  PDF available
Tolo Harbour is a poorly flushed bay in the northeastern corner of Hong Kong. Eutrophication caused by discharge of untreated and secondarily treated sewage into the bay was first detected during the 1970s. Increased nutrient input led to a noticeable increase in algal biomass and algal bloom occurrences. Nutrient reduction measures, including the construction of a pipeline to export all sewage effluents from Tolo Harbour, were introduced during the late 1980s. Decline in nutrient levels and decrease in the number of algal blooms have been recorded since 1998 when all nutrient reduction measures became fully operational. Zooplankton samples collected during 2003–2004 revealed that Tolo Harbour still contained a higher density and lower diversity of planktonic copepods compared to Mirs Bay, a less-polluted sea area outside Tolo Harbour. A comparison between data collected in this study to those collected during 1988–1990, several years before nutrient reduction measures were to be fully implemented, showed a decrease in copepod densities and an increase in copepod diversity. Small copepods, notably species of Paracalanus and Oithona, dominated the copepod communities in both periods, but there was an increase in species evenness during 2003–2004, caused by an increase in the number of dominant species. These observations confirm that eutrophication may lead to increases in copepod densities accompanied by increased dominance of small species. KeywordsEutrophication–Copepods–Community composition–Species diversity–Abundance–Hong Kong
RIS (EndNote, Reference Manager, ProCite, RefWorks)
BibTex (BibDesk, LaTeX)
Date
action
by
2013-01-12 18:30:12Z
created
db_admin
2017-10-13 14:40:12Z
changed
2019-07-17 20:34:31Z
changed
2025-09-06 17:43:33Z
changed

This service is powered by LifeWatch Belgium
Learn more»
Website and databases developed and hosted by VLIZ · Page generated 2025-09-13 · contact: Anton Van de Putte