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首页> 外文期刊>Journal of Aquatic Sciences >COMPARISON OF THE EFFECTS OF CRUDE AND SPENT OILS ON TILAPIA (Oreochrmis niloticus) FINGERLINGS
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COMPARISON OF THE EFFECTS OF CRUDE AND SPENT OILS ON TILAPIA (Oreochrmis niloticus) FINGERLINGS

机译：粗油和花油对提罗拉鱼（Terapipa niloticus）指的影响比较

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摘要

Toxic effects of bonnylight crude and spent oils on Oreochromis niloticus fmgerlings were conducted under laboratory conditions at the University of Port Harcourt, Nigeria for two months. Five concentrations (5 ml/L, 10 ml/L, 20 ml/L, 50 ml/L and 100ml/L) of water soluble fraction (WSF) of crude and spent oils were prepared. To each of the concentrations of the WSF, ten fmgerlings of O. niloticus were exposed for 96 hours for both crude and spent oil groups. The 96 hour LC_(50) was determined being66 ml and 38.5 ml for crude and spent oils respectively. There was no significant difference in rate of mortality between crude and spent oil groups at 24 and 96 hours respectively (p>0.05). The difference in mortality between crude and spent oil groupsat 48 and 7 hours was significant (p<0.05). Reduction in dissolved oxygen from 7.2 to 3.8 mg/L and 6.4 to 3.9 mg/L for crude and spent oil groups was significant (p>0.05). The death of fmgerlings might be related to the decreased dissolved oxygen of thewater due to the presence of crude oil or spent oil. Proper positioning of mechanic workshops and effective monitoring of water bodies are suggested measures to curb this menace.
机译：在尼日利亚哈科特港大学的实验室条件下，对轻薄原油和废油对尼罗罗非鱼的毒性进行了两个月的研究。制备了五种浓度（5 ml / L，10 ml / L，20 ml / L，50 ml / L和100ml / L）的原油和废油水溶性部分（WSF）。在每种浓度的WSF中，原油和废油组均暴露十只尼罗罗非鱼（O. niloticus）的香辛料，暴露96小时。测定的96小时LC_（50）对于原油和废油分别为66ml和38.5ml。原油组和废油组分别在24小时和96小时的死亡率没有显着差异（p> 0.05）。原油组和废油组在48小时和7小时的死亡率差异显着（p <0.05）。原油和废油组的溶解氧从7.2降低到3.8 mg / L，从6.4降低到3.9 mg / L显着（p> 0.05）。幼鱼的死亡可能与由于原油或废油的存在而使水中溶解氧减少有关。建议采取适当的措施来维修机械车间，并有效地监测水体，以遏制这种威胁。

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