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1
題名:A Case Study of System and Planktonic Responses in a Subtropical Warm Plume Receiving Thermal Effluents from a Power Plant    
著者:Fuh-Kwo ShiahYueh-Yuan TuHsien-Shiow TsaiShuh-Ji KaoSen Jan
出版地區:台灣
出版城市:台北市
學科:地球科學
關鍵字:Phytoplankton ; Primary production ; Bacteria ; Community respiration ; Temperature ; Q10
刊名:Terrestrial, Atmospheric and Oceanic Sciences
卷期:16卷2期(2005.6)
頁碼:513-528
語言:英語
摘要: 英文摘要PDF

To explore planktonic and ecosystem responses to thermal effluents of a power plant, three transect surveys were conducted in Nov-01', May-02' and Jun-02' at the bay adjacent to the outlet of Taiwan Nuclear Power Plant II. At the given station, seasonal trends were evident with most maximal measurements observed in Jun-02'. Physical mixing between background seawater and thermal effluents played an important role in determining planktonic biomass since chlorophyll (Chl, <0.15-1.27 mgChl m-3) and bacterial biomass (BB, 11-48 mgC m-3) increased almost linearly seaward. Temperature (20-45℃) manipulation experiments suggested that phytoplankton were more vulnerable than heterotrophs to thermal stress. Differential temperature responses of auto- and heterotrophs result in primary production (PP, <1-100 mgC m-3d-1) increasing seaward, while community respiration (CR, 15-68 mgC m-3d-1) and bacterial growth rate (BGR, 0.03-0.9 d-1) showed opposite trends. The plume system was heterotrophic (PP/CR ratio <1) in areas with bottom depths ca. < 10 m, and then switched to autotrophic status (PP/CR ratio > 1-3.7) in deeper regions. High observed dissolved organic carbon (DOC) anomaly (23-34 gC m-3) implied that heterotrophic metabolism was seldom limited by bottom-up control processes. Short-term manipulation experiments showing that BGR and CR increased with rising temperature up to ca. 37℃, which was ~12℃ higher than frequently reported values from most coastal and estuarine ecosystems. We ascribed this to the effects of temperature-substrate interaction. The results of organic carbon (zooplankton extract) addition experiments suggested a certain fraction of the in situ DOC was as labile as animal tissue since the increasing trends of BGR in the enriched and control treatments behaved similarly. From a carbon cycling perspective, the positive temperature responses of heterotrophic activities imply that in coastal systems with a high loading of anthropogenic DOC, the biogenic emission rate of CO2 might increase exponentially as global temperatures rise.


    

本卷期目次
Terrestrial, Atmospheric and Oceanic Sciences 16卷2期 (2005.6)
A Review on the Western North Pacific Monsoon: Synoptic-to-Interannual Variabilities/ Tim LiBin Wang
Array Observations for Narrow-Band Background Noises in the Hualien Area and Their Seismological Implications/ Ya-Chuan LaiBor-Shouh HuangHong-Yuan YenKou-Cheng ChenYi-Ling HuangYi-Ru ChenJuen-Shi Jiang
A Refined Historical Record of Volcanic Eruptions around Taiwan: Tectonic Implications in the Arc-continent Collision Area/ Chang-Hwa ChenJason Jiun-San Shen
The Distribution Characteristics of Elemental Components between Fine and Coarse Particle Fractions in Chongju, Korea/ Hak Sung LeeByung-Wook KangKi-Hyun Kim
Potential Impacts of N2-fixing Trichodesmium on Heterotrophic Bacterioplankton Turnover Rates and Organic Carbon Transfer Efficiency in the Subtropical Oligotrophic Ocean System/ Yu-Fang TsengFei-Jen LinKuo-Ping ChiangShuh-Ji KaoFuh-Kwo Shiah
Volume Transport through the Taiwan Strait: A Numerical Study/ Chau-Ron WuYi-Chia Hsin
The Effects of Surface Friction on Downslope Wind and Mountain Waves/ Wen-Yih SunWu-Ron Hsu
A Tendency of Cloud Ratio Associated with the Development of Tropical Water and Ice Clouds/ Chung-Hsiung SuiXiao-Fan Li
Correlation Dimension and Its Temporal Variations in Geomagnetic Total Field during Storms/ Chien-Chih ChenYu-Jung ChuoFang-Lin WangHorng-Yuan YenChieh-Hung Chen
Seasonal Variability of Carbon Chemistry at the SEATS Time-Series Site, Northern South China Sea between 2002 and 2003/ Wen-Chen ChouDavid Der-Duen SheuChen-Tung Arthur ChenShu-Lun WangChun-Mao Tseng
Site Characteristics of the Puli Area, Taiwan/ Huey-Chu HuangChau-Rong Tarng
Regional Spectral Model Simulations of the Summertime Regional Climate over Taiwan and Adjacent Areas/ Ching-Teng LeeMing-Chin WuShyh-Chin Chen
A Case Study of System and Planktonic Responses in a Subtropical Warm Plume Receiving Thermal Effluents from a Power Plant/ Fuh-Kwo ShiahYueh-Yuan TuHsien-Shiow TsaiShuh-Ji KaoSen Jan
 
   
 
   

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