Heavy Metal (Pd, Cd, Fe, Zn And Mn) Levels In Shrimp By-catch Spp. From Industrial Shrimp Trawl Fishery In Nigerian Coastal Waters | 18428
Journal of Marine Science: Research & Development
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By-catch is non-target mostly fish species which are obtained from Industrial Shrimp Trawl Fishery in Nigerian Coastal
Waters Millions of people in Lagos feed on fish by-catch because it is affordable, small and tasty and women are involved
in commercial aspect.
Total sample of 500 by-catches was randomly collected from commercial shrimp trawlers monthly from March 2010
to October 2011, at the by-catch landing port at Apapa Liver-pool, Lagos, Nigeria. The samples were taken to the Nigerian
Institute for Oceanography and Marine Research Laboratory where it was digested and the heavy metal (Pd, Cd, Fe, Zn and
Mn) concentration in shrimp by-catch species (
) were determined. Fish tissue was digested and analyzed using atomic absorption
had the highest concentration (mg l-1) of lead (0.0404?0.074),
had the highest concentration of Cd (0.1076?0.0151) and Fe (1.3166?0.3171), Zn (2.7705?0.2115) and Mn
(0.2677?0.1376). These are all within WHO and FEPA prescribed limits, the implication is that the fish is safe to eat; further
monitoring is needed to ensure food safety of fish.
Ngozi M Oguguah is a Senior Research Officer in Nigerian Institute for Oceanography and Marine Research Lagos Nigeria. She is a 2014 Agricultural Women and
Research Development fellow, a 2010 Norman E. Borlaug African Women in Science Fellow. She is about rounding up her PhD in Marine Pollution at the University
of Nigeria Nsukka Nigeria. She has attended many international conferences and courses and has a lot of publications to her name. She collaborates with a lot of
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