Author(s): Cheng-Shin Jang; Shih-Kai Chen
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Keywords: No Keywords
Abstract: River fish species and amounts are dependent on dissolved oxygen (DO). This study applied ordinary kriging (OK) to spatiotemporally analyze river DO distributions and to explore seasonal variations of river DO in the Tamsui River watershed. The analyzed results revealed that urban rivers show low DO and seasonal variations because of high levels of pollution and suburban rivers present high DO and seasonal variations. Thus, the upstream and midstream sections of the tributaries are suitable for survival of all fish species. The urban rivers only are suitable for tilapia, big belly fish and mullet survival, particularly in summer.
Year: 2018