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＜departmental bulletin paper＞
Seasonal variation of particulate organic nitrogen in the Tsushima Straits

Creator	Creator Name 鬼塚, 剛 Onitsuka, Goh オニツカ, ゴウ Creator Alternative Name Onitsuka, Go Affiliation Affiliation Name 水産総合研究センター瀬戸内海区水産研究所 National Research Institute of Fisheries and Environment of Inland Sea
	Creator Name 渡邉, 敦 Watanabe, Atsushi ワタナベ, アツシ Affiliation Affiliation Name 東京工業大学大学院情報理工学研究科 Graduate School of Information Science and Engineering, Tokyo Institute of Technology
	Creator Name 森本, 昭彦 Morimoto, Akihiko モリモト, アキヒコ Affiliation Affiliation Name 名古屋大学地球水循環研究センター Hydrospheric Atmospheric Research Center, Nagoya University
	Creator Name 滝川, 哲太郎 Takikawa, Tetsutaro タキカワ, テツタロウ Affiliation Affiliation Name 水産大学校海洋生産管理学科 Department of Fisheries Distribution and Management, National Fisheries University
	Creator Name 杢, 雅利 Moku, Masatoshi モク, マサトシ Affiliation Affiliation Name 東京大学大気海洋研究所 Atmosphere and Ocean Research Institute, The University of Tokyo
	Creator Name 柳, 哲雄 Yanagi, Tetsuo ヤナギ, テツオ Affiliation Affiliation Name 九州大学応用力学研究所 Research Institute for Applied Mechanics, Kyushu University
Language	Japanese
Publisher	Research Institute for Applied Mechanics, Kyushu University
Publisher	九州大学応用力学研究所
Date	2013-09
Source Title	Reports of Research Institute for Applied Mechanics, Kyushu University
Vol	145
First Page	79
Last Page	82
Publication Type	Version of Record
Access Rights	open access
JaLC DOI	https://doi.org/10.15017/1526126
Abstract	Field observations were conducted to reveal the seasonal variation of particulate organic nitrogen (PON) in the Tsushima Straits. The concentration of PON was roughly equivalent level to that of disso...lved inorganic nitrogen (DIN; nitrate+nitrite) from the surface to the subsurface layer throughout the year. The PON in. March was the highest concentration among the months. The ratio of POC/PON (6.4) was nearly the same value as the Redfield ratio (6.6), and the PON concentration significantly correlated to the chlorophyll α concentration, suggesting that most particulate organic matter was composed of phytoplankton. Horizontal transport of PON through the eastern channel of the Tsushima Straits was compared with that of DIN. The ratio of PON transport to total nitrogen (DIN+PON) transport was 66, 36, 25 and 16% in March, June, September and November, respectively. Since the penetration of organic matter through the Tsushima Straits becomes a consequential nutrient load because of decomposition of inorganic matter in the Japan Sea, oceanographic conditions including organic matter should be monitored in the Tsushima Straits.show more

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PISSN	1345-5664
NCID	AA11459359
Record ID	1526126
Peer-Reviewed	Unrefereed
Subject Terms	particulate organic nitrogen
	懸濁態有機窒素
	Tsushima Straits
	対馬海峡
	seasonal variation
	季節変化
	horizontal transport
	水平輸送
Type	紀要論文
Created Date	2015.10.06
Modified Date	2023.02.27