Khan R A, Kiceniuk J
J Wildl Dis. 1983 Jul;19(3):253-8. doi: 10.7589/0090-3558-19.3.253.
To assess the effect of crude oil on selected gastrointestinal parasites of fish, winter flounder (Pseudopleuronectes americanus) naturally infected with a digenetic trematode (Steringophorus furciger), were exposed to contaminated sediment or water soluble fractions of Venezuelan crude oil for 34 and 160 days respectively. Similarly, Atlantic cod (Gadus morhua) harboring an acanthocephalan (Echinorhynchus gadi), were treated with extracts of Hibernia and Venezuelan oils for periods of 81 to 140 days. In all cases prevalence and intensity of parasitic infections were lower in oil-treated fish. The effect appeared to be more pronounced within fish exposed to water soluble extracts than to oil-contaminated sediment. Fewer parasites present in fish exposed to oil might be attributed to direct toxicity induced by drinking water soluble fractions of crude oil and/or modification of the gut environment brought about by changes in host physiology.
为评估原油对鱼类特定胃肠道寄生虫的影响，将自然感染双殖吸虫（Steringophorus furciger）的冬比目鱼（Pseudopleuronectes americanus）分别暴露于委内瑞拉原油污染的沉积物或水溶性组分中34天和160天。同样，将携带棘头虫（Echinorhynchus gadi）的大西洋鳕鱼（Gadus morhua）用爱尔兰和委内瑞拉原油提取物处理81至140天。在所有情况下，经油处理的鱼体内寄生虫感染的患病率和感染强度均较低。这种影响在暴露于水溶性提取物的鱼中似乎比暴露于油污沉积物的鱼中更为明显。暴露于油中的鱼体内寄生虫较少，可能归因于饮用原油水溶性组分引起的直接毒性和/或宿主生理变化导致的肠道环境改变。
