Water quality problems, related challenges and their impacts on Ethiopian fishery

Abstract

The purpose of this review article is to explore the drivers of the water quality problems and associated impacts and mitigation schemes of the fishes and fisheries in Ethiopia. Data were obtained from both published and unpublished online documents as well as from different Ethiopian universities and institutions. The country has the potential to produce more fish yield (94, 500 ton/year. The published and unpublished documents stated that the fishes and water bodies utilized are under stress such as textile industry, floriculture industry, tannery industry, high population growth, irrigation, application of agrochemicals, deforestation around the watershed, types of fishing gears, fishing methods, socioeconomic factors, lack of facilities and infrastructure, ineffective administration setup, invasive weeds, land use around the fish habitats. However, the demand for fish is increasing at an alarming rate time to time. For this reason, good management setup for stakeholders particularly those communities settled around the watershed awareness is critical to sustain fish and water resources for the upcoming generation in the country.

Population structure and genetic diversity of Nile tilapia (Oreochromis niloticus) using microsatellite markers from selected water bodies in southwest Ethiopia

“…Lates niloticus, Oreochromis niloticus, Clarias gariepinus, Bagrus dockmak and Labeobarbus species are the commercial species in the country (Getahun, 2003;Tesfahun, 2019aTesfahun, , 2019bTilahun et al, 2016).…”

“…According to Golubtsov and Mina ( 2003 ), the inland fish diversity of Ethiopia is represented by 12 orders, 29 families and 70 genera and 180 species (Golubtsov & Darkov, 2008 ), with variation in species diversity and composition within and among river basins, lakes and reservoirs (Grove et al., 1975 ). Lates niloticus , Oreochromis niloticus, Clarias gariepinus, Bagrus dockmak and Labeobarbus species are the commercial species in the country (Getahun, 2003 ; Tesfahun, 2019a , 2019b ; Tilahun et al., 2016 ).…”