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A Marine Pollution Study of Northeast Coastal Water Off Taiwan Island
Authors:Kevin Chu   Tzu-Ming Pan  Rong-Jeng Tseng  Liang-Hsien Chen
Affiliation: a Marine Research Center, Chinese Culture University, Taipei, Taiwan, R.O.C.b National Institute of Preventive Medicine, Taipei, Taiwan, R.O.C.
Abstract:The coastal water of northeast Taiwan island, called 'Yin-Yang Hai' for its distinct yellow colour compared with blue offshore water, was investigated from 1989 to 1990 by the authors. Biological study showed the dominant species of plankton to be Copepoda, Cladocera, planktonic eggs and Diatoma. Dominant species of benthos were young crabs, Amphipoda and Annelida, with Amphipoda usually occurring in heavily polluted areas. Heavy metal data showed that the concentration of copper was high. the copper and iron concentration in algae of the intertidal zone was also high. the concentrations of iron and copper in inshore water were also higher than in offshore water. By comparison of the pH and salinity distribution of this area, we conclude that this coastal water has been polluted by acid waste water from coastal industry. the suspended solids concentration in sea water is high. Flocculation occurring at the boundary of fresh and saline water might be a reason for the distinct yellow colour of the water of this area. Further study is required.
Keywords:pollution  acidic mining discharge  heavy metals  zooplankton  benthos
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