Open AccessAssessment of heavy metal concentrations in the muscles of ten commercial fish species from Lagos lagoon, NigeriaAssessment of heavy metal concentrations in the muscles of ten commercial fish species from Lagos lagoon, Nigeria
Author(s) -
I. O. Taiwo,
Olaniyi Alaba Olopade,
Bashir T. Adeniyi
Publication year - 2021
Publication title -
nigerian journal of animal production
Language(s) - English
Resource type - Journals
ISSN - 0331-2062
DOI - 10.51791/njap.v44i3.755
Subject(s) - sardinella , heavy metals , copper , environmental chemistry , manganese , zinc , fish <actinopterygii> , fishery , metal , cadmium , chemistry , zoology , biology , organic chemistry , sardine
The study was undertaken to assess the concentration of five heavy metals (zinc (Zn), lead (Pb), copper (Cu), iron (Fe) and manganese (Mn)) in the muscles of Tilapia zilli, Hydrocynus fiscalis, Parapristipoma humile, Caranx hippo, Cynoglossusa caudatus, Chrysichthys nigrodigitatus, Letjanus sp, Portunus validus, Sardinella maderensis, and Sphyreana sp. The concentrations of heavy metals were measured by atomic absorption spectrophotometry after digestion of the samples. There were significant differences (P Fe > Pb> Cu> Mn. The values of Zn and Cu were within or lower than the acceptable limits FAO/WHO (Food and Agriculture Organization Of the United Nations/World Health Organization) for concentration of heavy metals in fish while levels of Pb, Fe and Mn in the muscles of the various fishes were beyond the safe limit in foods. Close monitoring of heavy metal pollution of Lagos Lagoon is strongly advocated, in view of possible risks to the health of consumers.