Sublethal Effects of Paraquat and Malathion on the Freshwater Shrimp, Macrobrachium nipponense

巴拉刈與馬拉松對日本沼蝦(Macrobrachium nipponense)的亞致死毒性的影響

袁又宸(Y. C. Yuan) ； 陳弘成(H. C. Chen) ； 袁又罡(Y. K. Yuan)

《Acta Zoologica Taiwanica》 14卷2期 (2004/10) Pp. 87-95

https://doi.org/10.6576/AZT.2004.14.(2).3

摘要

本研究中，比較了巴拉刈與馬拉松對日本沼蝦的攝食、耗氧量及體重變化的影響。兩種農藥對日本沼蝦的攝食率均會造成顯著的影響，當巴拉刈和馬拉松的濃度升高時，攝食率則隨之下降。在體重變化方面，當兩種農藥的濃度增加，蝦體的重量則呈現遞減的趨勢，且巴拉刈造成的影響較馬拉松顯著。而在耗氧量方面，當水中的含氧量減少時，暴露在巴拉刈和馬拉松中的蝦體其耗氧量的減少，較對照組的蝦體來的顯著。

關鍵字

日本沼蝦 ； 巴拉刈 ； 馬拉松 ； 耗氧量 ； 成長

並列摘要

In this research, we compared the responses of a freshwater shrimp (Macrobrachium nipponense), including food consumption, oxygen consumption, and body weight change, after paraquat and malathion exposure. The effects of these two pesticides on the feeding rates were remarkable. Feeding rates of this shrimp decreased when it was respectively exposed to increasing concentrations of both paraquat and malathion. As to body weight, when the concentration of paraquat and malathion increased, body weight decreased, and paraquat had a stronger effect than malathion. As to oxygen consumption, although there was a decrease in weight-specific oxygen consumption for both the control and exposed groups, the decrease was greater in exposed shrimp in relation to the dissolved oxygen concentration.

並列關鍵字

freshwater shrimp ； macrobrachium nipponense ； paraquat ； malathion ； oxygen consumption ； growth