| Seasonal Variation in Abundance and Species Composition of a Planktonic Diatom Assemblage Including Viable Cells on the Bottom in Matsushima Bay, Northeastern Japan |
| ICHINOMIYAMutsuo TANIGUCHIAkira |
| 关键词：季节变化 硅藻类 细胞 日本海 北太平洋海岸带 |
| 主要内容：Seasonal variation in abundance and species composition of a planktonic diatom assemblage distributed in the water column and also settled on the bottom was investigated for the shallow coastal water in Matsushima Bay on the Pacific coast of northeastern Japan during the period from October 1999 to September 2000. A spring bloom of diatoms began in April when nutrient concentrations started to increase, indicating the importance of nutrients. Viable cells of Skeletonema costatum and Thalassiosira spp., "which were the dominant species in the water column throughout the year, were also always abundant in the bottom sediment. Both populations in the water column and on the bottom fluctuated essentially in parallel.For the planktonic diatoms in shallow coastal waters to maintain their vegetative populations in the water column, it would be advantageous for them to have a seeding population of viable cells on the bottom that are easily resuspended into the upper photic layer. |
| 《青岛海洋大学学报：英文版》 2003,2(2).-160-166 |
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