Hydrobiological Bulletin

, Volume 16, Issue 2–3, pp 223–230 | Cite as

Heavy metals inUlva lactuca collected within Tolo Harbour, an almost landlocked sea

  • M. H. Wong
  • T. T. Kwok
  • K. C. Ho


The sea lettuce (Ulva lactuca), a littoral and sublittoral marine macroalga grows abundantly around shorewaters of Hong Kong, especially Tolo Harbour whereU.lactuca is collected from the mudflat for local human consumption as well as for export. Samples ofU.lactuca, together with the ambient seawater and sediment, were collected from several localities around Tolo Harbour, an almost land-locked sea, receiving polluted water from several major streams. For comparison samples were also collected from areas near the unpolluted south coast of Hong Kong Island. It was demonstrated that the samples of seawater and sediment collected within Tolo Harbour were polluted from domestic, agricultural and industrial sources. The extent of the metal (copper, lead, zinc and iron) contamination was further reflected and amplified in the tissue ofU.lactuca.


Iron Copper Zinc Heavy Metal Polluted Water 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Netherlands Hydrobiological Society 1982

Authors and Affiliations

  • M. H. Wong
    • 1
  • T. T. Kwok
    • 1
  • K. C. Ho
    • 1
  1. 1.Department of BiologyThe Chinese University of Hong KongShatinHong Kong

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