Biomanipulation in an Artificial Pond for Eutrophication Control
| Autor: | Wei-min Lee, 李維民 |
|---|---|
| Rok vydání: | 2008 |
| Druh dokumentu: | 學位論文 ; thesis |
| Popis: | 96 The high concentration of algae in water body is the most significant symptom of eutrophication and often perplexes the users of the water. With the approach of biomanipulation, we built several artificial refuges made of plastic net for zooplankton in an artificial pond. We wanted to reduce the quantity of algae in the water by the enhanced consumption of zooplankton due to their increased population. These refuges could offer safe habitats for zooplankton to hide and increase the space heterogeneity in the pond. The results of our research indicate that the species diversity of zooplankton in the refuges has increased due to the appearance of rotifers and protozoa. But the amount of zooplankton was still low in open water outside the refuges. Without large body-sized zooplankton in the water in this case, the concentration of algae in the pond remained high after the installation of the refuges. |
| Databáze: | Networked Digital Library of Theses & Dissertations |
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