نوع مقاله : فیزیولوژی (جانوری)
نویسندگان
دانشگاه علوم و فنون دریایی خرمشهر, دانشکده علوم دریایی و اقیانوسی, گروه زیست شناسی دریا, ایران
کلیدواژهها
عنوان مقاله [English]
نویسندگان [English]
PAHs are important environmental pollutants because of their ubiquitous presence and carcinogenicity. The present study investigated effects of naphthalene (NAP) as one of the most important hydrocarbons on gill structure and plasma cortisol and T3 levels in klunzingeri mullet (Liza klunzingeri). Fish were divided to control and treatment groups. Treatment fishes received 50mg Bap dissolved in10µl coconut oil per (body weight) that were implanted peritoneal. Control group were implanted with coconut oil (10µl/g body weight) without BaP. Sampling was carried out 72 hours after implanting. During sampling time (While Sampling) fish were anesthetized then blood and gill arch were sampled. According to the results plasma levels of cortisol and T3 significantly increased and decreased respect. Respectively in both control and treatment groups NaP exposure stress caused increasing gill histopathological lesions such as epithelial hyperplasia, epithelial lifting, vascular congestion and mucus hyper secretion was evident. NAP exposure stress caused some alteration in plasma cortisol and T3 levels and increasing gill histopathological lesions. So according to disorders in hydromineral balance and survival are expected. According to the results plasma levels of cortisol and T3 significantly increased and decreased respectively in both control and treatment groups NaP exposure stress caused increasing gill histopathological lesions such as epithelial hyperplasia, epithelial lifting, vascular congestion and mucus hyper secretion was evident.
کلیدواژهها [English]
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