Dataset on microplastic presence, bioconcentration factor and health indices of four commercial fish species in the Lagos Lagoon, Nigeria
Description
Our research hypothesized microplastic accumulation in fish tissues, probable microplastics bioconcentration factor greater than 1 and subsequent impact on condition factor of the fish species across the dry and wet seasons in the Lagos Lagoon, Nigeria. The data set describes microplastic concentrations in commercially available fish species in the Lagos Lagoon, Nigeria. The bioconcentration factor of microplastics and the health index/condition factor of the fish species were computed using the Microsoft office Excel 2016. This dataset also presents this information across the two major seasons experienced in Nigeria: the dry and the wet seasons. 128 fish samples were collected from four different sampling points during the dry and wet seasons. Microplastics were isolated from fish tissues and were analysed for the identification of different polymer types. Condition factor of the fish species were analysed using the formula: 100 ×weight/(Length^3 ). Bioconcentration factor of microplastics in each species was calculated as: (Concentration of microplastics in fish tissue)/(Concentration of microplastics in water). Microplastics were isolated from the fish tissues by tissue digestion in potassium hydroxide (1:4, w/v) with incubation in 40 ℃ for 3 days and extracted by ultrafiltration. Extracted microplastics were identified using the Fourier Transform Infrared spectrometer. The health index/condition factor of the fish species and bioconcentration factor of microplastics were computed using the Microsoft Office Excel 2016. The importance of this data set is that provides an insight into the presence of microplastics in the visceral tissues and subsequent health indices of four commercial fish species in the Lagos Lagoon. Furthermore, ecotoxicologists and environmental protection agencies will find the data useful for toxicological studies on edible fish species exposed to environmentally relevant concentrations of microplastics. This data set is useful for further safety investigations into the risks posed to the physiological functions of aquatic organisms due to microplastic ingestion.