English  |  正體中文  |  简体中文  |  Items with full text/Total items : 26988/38789
Visitors : 2358294      Online Users : 36
RC Version 4.0 © Powered By DSPACE, MIT. Enhanced by NTU Library IR team.
Scope Adv. Search
LoginUploadHelpAboutAdminister

Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/48284

Title: Low nutrient and high chlorophyll a coastal upwelling system – A case study in the southern Taiwan Strait
Authors: JunHu
WenluLan
BangqinHuang
Kuo-PingChiang
HuashengHong
Contributors: 國立臺灣海洋大學:海洋觀光管理學士學位學程(學系)
Keywords: chlorophyll a
coastal upwelling
nutrients
phytoplankton
southern Taiwan Strait
Date: 2015-06
Issue Date: 2018-08-22T02:15:56Z
Publisher: Estuar. Coast. Shelf Sci
Abstract: Abstract: Using the field data during four summer cruises of 2005, 2006, 2008 and 2013, an interesting phenomenon of low nutrient and high Chl.a (LNHC) was observed in the coastal upwelling system off Dongshan in the southern Taiwan Strait. The results indicated that the upwelling region was dominated by cold (<25 °C) and saline (>33.9 psu) upwelled water, and the concentration of nitrate (<1 μM) and phosphate (<0.1 μM) was very low, while with high Chl.a content (mean 1.98–3.56 μg L−1, maximum 8.3 μg L−1) during the stronger summer upwelling cruise of 2005, 2006 and 2008. The upwelled water originated from the 50–100 m layer off Shanwei with a low concentration of nitrate (<7.5 μmol·L−1) and phosphate (<0.5 μmol·L−1), which was transported to Shantou-Dongshan by the northeastward bottom current. During the time that the upwelled water moved the long-distance (150–300 km) from Shanwei to Shantou-Dongshan and was transported through the euphotic zone alongshore, the phytoplankton grew rapidly due to the favorable temperature, N/P ratio and illumination, and consumed most of the nutrients in the upwelled water. These unique physical, chemical and biological processes are the main reasons for the formation of the low nutrients/high chlorophyll a in this coastal upwelling system in the southern Taiwan Strait.
Relation: 166 pp.170-177
URI: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/48284
Appears in Collections:[海洋觀光管理學士學位學程(學系)] 期刊論文

Files in This Item:

File Description SizeFormat
index.html0KbHTML35View/Open


All items in NTOUR are protected by copyright, with all rights reserved.

 


著作權政策宣告: 本網站之內容為國立臺灣海洋大學所收錄之機構典藏,無償提供學術研究與公眾教育等公益性使用,請合理使用本網站之內容,以尊重著作權人之權益。
網站維護: 海大圖資處 圖書系統組
DSpace Software Copyright © 2002-2004  MIT &  Hewlett-Packard  /   Enhanced by   NTU Library IR team Copyright ©   - Feedback