The Accumulation of Trace Metals of Copepods in the Polluted Estuarine Environment

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Project title

Code/計畫編號

MOST106-2611-M019-018

Translated Name/計畫中文名

橈足類浮游動物在污染河口海域對重金屬元素蓄積能力之研究

Project Coordinator/計畫主持人

Tien-Hsi Fang

Funding Organization/主管機關

National Science and Technology Council

Department/Unit

Department of Marine Environmental Informatics

Website

https://www.grb.gov.tw/search/planDetail?id=12243689

Year

2017

Start date/計畫起

01-08-2017

Expected Completion/計畫迄

31-07-2018

Bugetid/研究經費

1270千元

ResearchField/研究領域

海洋科學

"淡水河流域因受到家庭與工業污水排入影響，造成其河口內海域重金屬元素濃度偏高，濃度高於一般海域10-20 倍之間，本計畫擬研究橈足類浮游動物在河口海域遭受重金屬元素汙染其浮游動物生態變化之機制，及在這樣的環境中橈足類浮游動物重金屬元素蓄積能力的影響。本計畫擬於淡水河上中下游海域設定共15 個測站，租用漁船採取表層水(ca. 2m)，及浮游動物拖網作業，收集浮游動物，分析水樣中之基本水質 (鹽度、酸鹼度、溶氧、磷酸鹽、矽酸鹽、氨氮、亞硝酸鹽和硝酸鹽)項目，另分析橈足類浮游動物及水樣中溶解態微量元素(Ag、Al、As、Cd、Co、Cr、Cs、Cu、Fe、 Mn、Ni、Pb、Zn、Se、Hg)濃度，瞭解自然海域環境遭受重金屬元素情況下，橈足類浮游動物生態變化及其對重金屬元素累積能力之影嚮。""The Danshuei estuary has been contaminated by trace metals because of untreated and treated domestic effluents and industrial wastes discharged into the estuary from its tributaries. The dissolved concentrations of trace metals within the Danshuei estuary were generally 10-20 times higher than the uncontaminated estuary. Thus, the Danshuei Estuary provides a natural environment to study the ecological variation of the marine copepod under such a trace metals contaminated environment. This project will collect the estuarine water and copepod samples from the Danshuei Estuary in Northern Taiwan to study the ecological change of the marine copepod and to study the accumulation ability of trace metals (Ag、 Al、As、Cd、Co、Cr、Cu、Fe、Mn、Ni、Pb、Zn、Se、Hg) by means of determining the dissolved concentrations of trace metals in the estuarine water and in dominant species of copepods. The determination of trace metals in the collected copepod and water samples will be analyzed by the graphite AAS prior to digestion by HNO3-HCl acid in the water bath and by pre-concentrated by solvent extraction, respectively. The analyzed results can help us to understand the bioaccumulation ability of trace metals by marine copepods and to evaluate the ecological system of copepods under the trace metals contaminated estuarine environment."

Keyword(s)

浮游動物
橈足類
重金屬元素
生物累積
淡水河
zooplankton
copepod
trace metals
bioaccumulation
the Danshuei Estuary

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The Accumulation of Trace Metals of Copepods in the Polluted Estuarine Environment

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