HUSCAP logo Hokkaido Univ. logo

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61巻 第1号 >

Evaluation of major nutrients regulating the growth of diatoms in Harima-Nada, the Seto Inland Sea, Japan

Files in This Item:
p.5-12.pdf832.47 kBPDFView/Open
Please use this identifier to cite or link to this item:http://hdl.handle.net/2115/47535

Title: Evaluation of major nutrients regulating the growth of diatoms in Harima-Nada, the Seto Inland Sea, Japan
Authors: Naito, Kanako Browse this author
Tanabe, Ayako Browse this author
Itakura, Shigeru Browse this author
Yamaguchi, Mineo Browse this author
Imai, Ichiro Browse this author
Keywords: Phytoplankton
Diatom bloom
Nitrogen depletion
Harima-Nada
Issue Date: 20-Jun-2011
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
Journal Title(alt): Bulletin of Fisheries Sciences, Hokkaido University
Volume: 61
Issue: 1
Start Page: 5
End Page: 12
Abstract:  In the eastern Seto Inland Sea, dissolved inorganic nitrogen has decreased due to the reduction of nutrient inputs, and there have been changes in the total cell density and the composition of the phytoplankton assemblages. The major phytoplankton component was diatoms, and the contribution was always over 90 percent of total phytoplankton since the 1990s. In order to elucidate growth characteristics and nutrient consumption of diatom species, we conducted major nutrients-enrichment bottle incubation experiments on shipboard using the surface waters in Harima-Nada, eastern part of the Seto Inland Sea. Seawater incubation experiments demonstrated that nutrient environments for phytoplankton are in a state of nitrogen-limitation in Harima-Nada. The addition of nitrate to surface waters of this coastal region promotes blooms of large chain-forming diatom species. These results suggest that diatom blooms cause depletion of the nutrients (mainly nitrogen) in Harima-Nada.
Type: bulletin (article)
URI: http://hdl.handle.net/2115/47535
Appears in Collections:北海道大学水産科学研究彙報 = Bulletin of Fisheries Sciences, Hokkaido University > 第61巻 第1号

Export metadata:

OAI-PMH ( junii2 , jpcoar_1.0 )

MathJax is now OFF:


 

 - Hokkaido University