Abstract
Concentrations of trace elements zinc, copper, nickel, chromium and heavy metals lead, mercury, cadmium and arsenic were detected in the muscle tissues of four commercially edible fishes belonging to the scombridae and related families including yellow fin tuna (Thunnus albacares), Dogtooth tuna (Gymnosarda unicolor), Marlin (Makaira mazara) and the dolphin fish (Coryphaena hippuru) in the EEZ (Exclusive Economic Zone) of Mauritius. The concentrations were within the range 1.34-10.03, 0.0-1.42, 0.23-0.89, 0.0-2.43, 0.0, 3.60-5.44, 0.03-0.13 and 0.03-0.07 mg/kg wet weight respectively for summer and winter seasons. Inter-species variations with respect to elemental accumulations were not significantly different as compared to seasonal variations for the accumulation of chromium, zinc and lead. Marlin and Dorado caught during the summer season exceeded the authorised level of chromium in muscle tissues according to international standards. A survey carried out among fish consumers in Mauritius revealed that 80 % of the respondents were ignorant about heavy metal bio-accumulation.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
