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台灣西海岸沿近海經濟性魚類有機錫之檢測

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109年11月21日
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990
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年度 2006
計劃名稱 台灣西海岸沿近海經濟性魚類有機錫之檢測
中文摘要 於民國95年3月至12月間分做春、夏、秋、冬四季，採集台灣西海沿岸經濟性魚種進行有機錫污染研究調查，西部沿岸由北而南分別選擇基隆碧砂漁港、新竹南寮漁港、台中梧棲漁港以及屏東的東港漁港做為樣品測站，測量採獲沿岸魚種魚體體長、體重、含水率及含油脂率後，分析魚肉及內臟中各有機錫物種(包括單丁基錫(MBT)、二丁基錫(DBT)、三丁基錫(TBT)、四丁基錫(TeBT)的含量)。基隆碧砂漁港採獲之魚種主要包括白帶魚、肉魚、赤?、午仔、鳳螺與珠螺。新竹南寮漁港主要包括白帶魚、肉魚、赤?與午仔魚。台中梧棲漁港主要包括白帶魚、黃?鯛、海鱭、比目魚、赤?、肉魚、白鯧魚與午仔魚。屏東東港漁港主要包括白帶魚、肉魚、黃?鯛、午仔魚、比目魚、赤?與白姑魚。分析結果發現第一季各測站整體之總有機錫含量，魚體內肌肉之含量為15.0-363.0 ng/g (dry wt.)，內臟之含量為由無測值到363.0 ng/g (dry wt.)。第二季魚體肌肉中之總有機錫為無測值至954.7 ng/g (dry wt.)，內臟中之含量為無測值至632.8 ng/g (dry wt.)。第三季魚種肌肉中有機錫含量為無測值至490.9 ng/g (dry wt.)，內臟之含量為無測值至188.7 ng/g (dry wt.)。第四季魚種肌肉中有機錫含量為22.9至240.5 ng/g (dry wt.)，內臟之含量為33.6至236.1 ng/g (dry wt.)。四個測站採獲沿岸魚種有機錫污染情形第一季雖有由北而南逐漸增加的趨勢，但第三季由北而南有逐漸降低的趨勢，其它兩季則無明顯的趨勢。另外，第一季到第四季魚體中總有機錫含量除了第一季基隆地區，其它地區之所有測站有機錫含量看來，仍以單丁基錫為主，二丁基錫含量次之，四丁基錫雖部分測站有值但含量均低於偵測極限。
英文摘要 Fin fishes and shell fishes collected from Keelung Bi-Sha (northern part of Taiwan), Hsinchu Nan-Liao (north central part of Taiwan), Taichung Wu-Gi (central part of Taiwan) and Pingtung Dong-Gang (southern part of Taiwan) fishing port in spring, summer, autumn, winner during March to December 2006 were used to monitor butyltin compounds pollution in fishes caught along the west coast of Taiwan. Body length (g), body weight (g), crude water content (%) and crude lipid content (%) of all samples were measured. Butyltin compounds include monobutyltin (MBT), dibutyltin (DBT), tributyltin (TBT), and tetrabutyltin (TeBT) in dorsal muscle and internal organs were determined. Fishes collected from Keelung Bi-Sha fishing port were Trichiurus sp., Psenopsis sp., Dentex sp., Polydactylus sp., Babylonia sp., and Lanella sp.. Fishes collected from Hsinchu Nan-Liao fishing port were Trichiurus sp., Psenopsis sp., Dentex sp., Polydactylus sp., Babylonia sp., and Lanella sp.. Fishes collected from Taichung Wu-Gi fishing port were Trichiurus sp., Acanthopagrus sp., Nematalosa sp., Psettodes sp., Dentex sp., Psenopsis sp. sp., Pampus sp., and Polydactylus sp.. Fishes collected from Pingtung Dong-Gang fishing port were Trichiurus sp., Psenopsis sp., Acanthopagrus sp., Polydactylus sp., Psettodes sp., Dentex sp., and Pennahia sp..

In the first season (spring) concentration of butyltin compounds in the dorsal muscle and internal organs were 15.0 ~ 363.0 ng/g (dry wt.) and n.d. to 363.0 ng/g (dry wt.), respectively. In the second season (summer) concentration of butyltin compounds in the dorsal muscle and internal organs were n.d. to 954.7 ng/g (dry wt.) and n.d. to 632.8 ng/g (dry wt.), respectively. In the third season (autumn) concentration of butyltin compounds in the dorsal muscle and internal organs were n.d. to 490.9 ng/g (dry wt.) and n.d. to 188.7 ng/g (dry wt.), respectively. In the forth season (winter) concentration of butyltin compounds in the dorsal muscle and internal organs were 22.9 to 240.5 ng/g (dry wt.) and 33.6 to 236.1 ng/g (dry wt.), respectively. There was a trend that concentration of total butyltin (MBT+DBT+TBT+TeBT) increased gradually in fishes collected from north to south in the first season, but the trend was reversed, e.g. concentration of total butyltin (MBT+DBT+TBT+TeBT) decreased gradually in fishes collected from north to south in the third season. There was no obvious trend in other two seasons. Except in fishes collected in first season in Keelung Bi-Sha fishing port, among the four butyl compounds, MBT constituted the highest concentration, DBT took the second place. Few fish contained TeBT.
計畫編號 95農科-9.1.2-漁-F1(3)