Document Details

Document Type : Thesis 
Document Title :
Role of Parasitic Helminthes in Bioremediating Some Heavy Metals in Lethrinus mahsena, in Jeddah, Saudi Arabia
دور الديدان الطفيلية في المعالجة الحيوية لبعض المعادن الثقيلة في أسماك الشعور (Lethrinus mahsena) في جدة بالمملكة العربية السعودية
 
Subject : Faculty of Sciences 
Document Language : Arabic 
Abstract : Fish are characterized by their economic importance and widespread in the Red Sea. They take up metals from the aquatic ecosystem and accumulate metals in their muscle tissues and organs. Such studies are poorly discussed in Saudi Arabia. The aim of the present study was to determine the role of intestinal helminthes in bioremidiating some heavy metals in the muscle tissues of the Emperor fish Lethrinus mahsena. A total of 130 fish were collected randomly from Raas Mehsen in the Red Sea, Jeddah coast, during the period of November 2015 to May 2016. Fish were examined and the intestinal helminthes were collected and processed. The relationship between helminthes infection and both weight and length of the infected fish were studied. Helminthes were identified using taxonomic keys and recent articles. Heavy metals concentration in the infected and non-infected fish and parasites were analyzed using flame atomic absorption spectrometry. The total infection percent in the (L. mahsena) fish was 43.85%. The most prevalent infected fish weight was 301-500g with length (21-26cm). Four species of Trematoda were obtained from the small intestine, one species of Cestoda and three species of Nematoda. Mean concentrations of individual heavy metals in cestode parasites tissues increased in the order As > Fe > Cu >Cd while cadmium was increase in nematodes but trematodes was lack to accumulated heavy metals. Most heavy metals exhibited a significant decrease in fish tissues infected with single, double or triple infections. Bioaccumulation factors (C[parasites]/C[fish tissue]) calculated for all elements indicated much higher detection skills of Cestoda than fish organs. Cestodes infections in marine fish considered to be a biological indicator for heavy metal marine pollution and its presence can minimize the bioaccumulation of heavy metals in fish tissues and organs. 
Supervisor : Dr. Amaal Hassan 
Thesis Type : Master Thesis 
Publishing Year : 1438 AH
2017 AD 
Added Date : Monday, June 5, 2017 

Researchers

Researcher Name (Arabic)Researcher Name (English)Researcher TypeDr GradeEmail
حنان عبده الهلاليAl-Helali, Hanan AbdouResearcherMaster 

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