ORIGINAL RESEARCH
The Response of Sobaity Sea Bream Sparidentex
hasta Larvae to the Toxicity of Dispersed
and Undispersed Oil
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1
Environment and Life Sciences Research Center, Kuwait Institute for Scientific Research,
P.O. Box 24885,13109 Safat, Kuwait
2
Laboratoire Biodiversité ́Marine et Environnement (LR18ES30), Universite ́de Sfax,
Route Soukra Km 3.5, B.P. 1171, CP 3000 Sfax, Tunisia
3
Dove Marine Laboratory, School of Marine Science and Technology, Newcastle University,
Newcastle upon Tyne, NE1 7RU, United Kingdom
4
Newcastle University, Singapore, 567 739, Singapore
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
Corresponding author
Qusaie Karam
Environment and Life Sciences Research Center, Kuwait Institute for Scientific Research, P.O. Box 24885,13109, KUWAIT CITY, Kuwait
Pol. J. Environ. Stud. 2021;30(6):5065-5077
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ABSTRACT
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.