Eutrophication and Oligotrophication in Japanese Estuaries: A Synthesis
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“Eutrophication and Oligotrophication in Japanese Estuaries”, one in the series of books entitled “Estuaries of the World”, addresses the question: What is the present states of Japanese estuaries from the viewpoint of eutrophication and oligotrophication? We describe three typical situations, namely, (1) eutrophication problems in Tokyo Bay, (2) oligotrophication problems in the Seto Inland Sea and (3) the disappearance of hypoxia in Dokai Bay. Total TP (total phosphorus) and TN (total nitrogen) loads control law has played an important role in these three bays. However, the results of the application of the law differ among the three bays as the characteristics of material cycling are different.
KeywordsEutrophication Hypoxia Total loads control law Oligotrophication Habitat ICM
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