Dr. Azubuike V. Chukwuka is presently working as Assistant Chief Scientific Officer, Environmental Pollution control unit, National Environmental Standards and Regulations Enforcement Agency (NESREA), Nigeria. Dr. Chukwuka is a young scientist with a Ph.D in Environmental Biology with a growing interest in the ecology of aquatic vertebrate and invertebrate species. Ongoing research collaborations include pesticide bioassays with aquatic vertebrates and invertebrates, foraging ecology of tilapiine cichlids, sexual dimorphism in tilapiine cichlids and relative ecological risks of aquatic species due to life history traits and habitat preferences. Currently developing pathological biomarkers of relative ecological risks in freshwater and estuarine species. Other concurrent research includes watershed research, GIS evaluation of riparian vegetation for ecosystem services in relation to surface water quality and sustenance of biodiversity.