Document Details

Document Type : Article In Journal 
Document Title :
Effects of Cadmium on Histopathological Changes of Shrimp (Penaeus indicus) in the Red Sea
تأثير الكادميوم على التغيرات المرضية في الربيان الأبيض (Penaeus indicus) في البحر الأحمر
 
Document Language : Arabic 
Abstract : This study was conducted on the type of shrimp Penaeus indicus samples provided from the Ministry of Agriculture, representing the farm fish Obhor (Jeddah) on the Red Sea. This study aimed to study the effect of exposure of shrimps to different concentrations of cadmium on gill filaments and heart rate, as well as, its bioaccumulation in tissues. Cadmium concentrations ranged from 0.0 to 8.0 µg /L. Concentrations of cadmium were measured using atomic absorption spectrophotometer. The lethal concentration 96LC50 was found to be 4.5 µg /L Cd and the 2.5 µg /L Cd fell within the range of sublethal (chronic) toxicity, whereas the 8.0 µg /L Cdrepresented the 24LC50 level of toxicity. The study revealed that the heart rate showed a regular increase with increased Cd concentration reaching a maximum rate of 246 heart beat per minute at 8.0 µg /L Cd compared to 139 heart beat per minute for controls. The histological studies further revealed the presence of explicit damage in gill filaments at Cd levels of 8.0 µg /L, whereas at 4.5 µg /L Cd level an obvious contraction of gill was observed as compared to unchanged control samples. This damage was believed to have caused the animal to increase its heart beat rate as a reaction to compensate for the loss in respiratory area. 
ISSN : 1319-1039 
Journal Name : Meteorology, Environment and Arid Land Agriculture Sciences Journal 
Volume : 20 
Issue Number : 2 
Publishing Year : 1430 AH
2009 AD 
Article Type : Article 
Added Date : Monday, December 14, 2009 

Researchers

Researcher Name (Arabic)Researcher Name (English)Researcher TypeDr GradeEmail
حسن عبدالحميد جستنيةJastania, H. A.ResearcherDoctorate 

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