Aquaculture 2025

March 6 - 10, 2025

New Orleans, Louisiana USA

A REVIEW OF BIODIVERSITY AND CHEMICAL CONTAMINANTS IN FISH FROM LAKE NAKIVALE, UGANDA

Mongane Abayunvinye*, Emmanuella Gigoho, Rhuderhekuguma Mongane, and Pascaline Bakemine

 

Asteria Urafiki High School, Higher Institute of Pedagogy Bukavu, DRCongo, and

Bahati High School, Bukavu South kivu, DRCongo

gilbertemonganeab@gmail.com, emmanuellagihozo013@gmail.com, juleskuguma@gmail.com

 



Lake Nakivale is a lake in the Western part of Uganda. It is part of the Lake Mburo-Nakivale wetland system. It is located 6km in the western part of Isingiro town. This lake also serves as one of the main water supplies for the district of Isingiro.

Lake Nakivale in Uganda is facing environmental challenges, particularly with chemical contaminants affecting its biodiversity. The lake’s water and sediments contain pollutants like heavy metals, pesticides, and microplastics, mainly from industrial activities, agricultural runoff, and improper waste disposal.

Contaminants Found in Lake Nakivale:

Heavy Metals: Lead, cadmium, and mercury have been detected in water and sediments, posing risks to aquatic life and human health

Pesticides: Residues from pesticides like DDT and herbicides have been found in fish and sediments, contributing to ecological disruptions.

Micro plastics: Studies have revealed micro plastics presence in fish and water samples, highlighting concerns about ingestion and food chain contamination.

Impact on Biodiversity: The presence of these contaminants threatens Lake Nakivale’s biodiversity, affecting fish populations and other aquatic organisms. The lake’s ecosystem is vulnerable to disruptions, and the contaminants’ persistence can have long-term consequences. 

Conservation Efforts: three key measures to protect the environment: 1) Improved waste management; 2) Sustainable agriculture (ecological and responsible), Use of environmentally friendly cultivation methods, Reduction in the use of chemicals Promotion of biodiversity; 3) Regular monitoring of water and sediment quality. By addressing these concerns, we can work towards preserving Lake Nakivale’s biodiversity and ensuring a healthier environment for its ecosystems.