Sedimentation Process of Suspended Solids in Ports with Different Nutrient Level

Abstract

The objective of this study is to compare from primary production to sedimentation process of suspended solids in ports with different nutrient level, and to compare effects on oxygen deficiency of oxygen consumption of their process in ports. The investigation was conducted water quality, primary production, settling matter and sediment at Komatsushima port in Tokushima prefecture and Amagasaki port in Hyogo prefecture. As a result, organic ingredients of suspended solid were different from two ports. It was suggested that suspended solid ingredient in Amagasaki port was included phytoplankton a lot than it in Komatsushima port. This ingredient difference affected oxygen consumption of sedimentation process and material cycle.