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Hokkaido University Collection of Scholarly and Academic Papers >
Graduate School of Fisheries Sciences / Faculty of Fisheries Sciences >
北海道大学水産科学研究彙報 = Bulletin of Fisheries Sciences, Hokkaido University >
第66巻 第1号 >
西部北太平洋155°E線に沿った春季植物プランクトン群集の水平および鉛直分布：多波長励起蛍光光度計による解析
| Title: | 西部北太平洋155°E線に沿った春季植物プランクトン群集の水平および鉛直分布：多波長励起蛍光光度計による解析 |
| Other Titles: | The Spatial and Vertical Distributions of a Spring Phytoplankton Community along 155°E in the Western North Pacific : An In Situ Multi-Excitation Fluorometer Analysis |
| Authors: | 松本, 健太郎1 Browse this author | | 有馬, 大地2 Browse this author | | 松野, 孝平3 Browse this author | | 山﨑, 康裕4 Browse this author | | 大西, 広二5 Browse this author →KAKEN DB | | 大木, 淳之6 Browse this author →KAKEN DB | | 平譯, 享7 Browse this author →KAKEN DB | | 山口, 篤8 Browse this author →KAKEN DB | | 今井, 一郎9 Browse this author →KAKEN DB |
| Authors(alt): | Matsumoto, Kentaro1 | | Arima, Daichi2 | | Matsuno, Kohei3 | | Yamasaki, Yasuhiro4 | | Onishi, Hiroji5 | | Ooki, Atsushi6 | | Hirawake, Toru7 | | Yamaguchi, Atsushi8 | | Imai, Ichiro9 |
| Keywords: | Chl. a sensor | | Diatom | | Dinoflagellate | | Multi-excitation fluorometer | | Phytoplankton | | Spring bloom |
| Issue Date: | 18-Mar-2016 |
| Publisher: | 北海道大学大学院水産科学研究院 |
| Journal Title: | 北海道大学水産科学研究彙報 |
| Volume: | 66 |
| Issue: | 1 |
| Start Page: | 29 |
| End Page: | 38 |
| Abstract: | The spring phytoplankton community in the western North Pacific is characterized by large variability in both the horizontal and verical dimensions. To evaluate this variability, phytoplankton communitiesat 39°30'N-44°00'N along 155°E were investigated in situ using a multi-excitation fluorometer during May 2014. The sea surface chlorophyll a(Chi. a) level was high and composed mainly of diatoms near 43°30'N-42'N, while it was low and composed of dinoflagellates south of 40°N. Based on seven fixed-station investigations, the phytoplanklton communities were classified into 4 types : a low Chl. a level before bloom (44°N), massive diatom bloom(42°N-43°N), low Chl. a level with dinoflagellates(40°N-41°N) and lowest Chl.a(at the southernmost station at 39°30'N). These phytoplankton communities corresponded with the formation of a water mass separating the Subartctic front(SAF) and Subarctic boundary(SAB). Multi-excitation fluorometry data showed a high correlation with Chl. a measurements obtained via Thrmo-salinometer and biovolume microscopic analyses(r²=0.67-0.97,p<0.05). Thus, we concluded that a multi-excitation fluorometer can be applied for the evaluation of detailed spatial and temporal changes in the phytoplankton community at various locations. |
| Type: | bulletin (article) |
| URI: | http://hdl.handle.net/2115/61052 |
| Appears in Collections: | 北海道大学水産科学研究彙報 = Bulletin of Fisheries Sciences, Hokkaido University > 第66巻 第1号
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