The Response of Sobaity Sea Bream Sparidentex hasta Larvae to the Toxicity of Dispersed and Undispersed Oil
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Environment and Life Sciences Research Center, Kuwait Institute for Scientific Research, P.O. Box 24885,13109 Safat, Kuwait
Laboratoire Biodiversité ́Marine et Environnement (LR18ES30), Universite ́de Sfax, Route Soukra Km 3.5, B.P. 1171, CP 3000 Sfax, Tunisia
Dove Marine Laboratory, School of Marine Science and Technology, Newcastle University, Newcastle upon Tyne, NE1 7RU, United Kingdom
Newcastle University, Singapore, 567 739, Singapore
Qusaie Karam   

Environment and Life Sciences Research Center, Kuwait Institute for Scientific Research, P.O. Box 24885,13109, KUWAIT CITY, Kuwait
Submission date: 2020-10-27
Final revision date: 2021-02-06
Acceptance date: 2021-02-11
Online publication date: 2021-08-31
Publication date: 2021-10-01
Pol. J. Environ. Stud. 2021;30(6):5065–5077
Accidental oil spillages can release millions of barrels of oil into the marine environment threatening aquatic wildlife like fisheries. As a part of the oil spill response strategy, several chemical dispersants have been recommended that have been successfully used elsewhere. However, the adverse effects of dispersed oil are unknown to fish species in Kuwait. Therefore, this study investigated the toxicity of water-accommodated fraction (WAF) and chemically enhanced water-accommodated fraction (CEWAF) of Kuwait crude oil (KCO) with three dispersants (Corexit® 9500, Corexit® 9527, and Slickgone® NS) against the larvae of the sobaity sea bream Sparidentex hasta which is of an international economic significance. Total petroleum hydrocarbons (TPH) were used for comparison of chemical compounds partitioned in WAF of dispersed and non-dispersed oil. Toxicity test results with fish larvae showed that WAF of non-dispersed oil and Corexit® 9527 treated CEWAF had similar LC50 values (0.12 g oil. l-1) whereas CEWAF’s of Corexit® 9500 and Slickgone® NS CEWAF showed lower toxicity.