Naga Murali Chalamalase
Biography
Managing Director ? Volta Breams Ltd, Ghana Tilapia Hatchery Managing Director ? Mansvi Fisheries Pvt Ltd, India Fish & Shrimp Farm, Consultancy Services Director ? Fish & Feeds Ltd, Ghana Pond & Biofloc Culture of Tilapia and P.monodon CEO & Director ? Nimba Fish Farms, Ivory Coast Biofloc culture of Tilapia Consultant ? FAMA MALI, Mali Biofloc culture of Tilapia Empaneled Consultant for PMMSY projects under NFDB, Govt of India Expert consultancy for fish & shrimp projects Management & Technical Consultant, Blue Line Aqua, Amman, Jordan Tilapia and vannamei culture in ponds
Research Interest
Sustainable Harnessing of Aquaculture Balancing Conservation of Environment
Abstract
Environment is a broad term and we can simplify that into key elements which will be impacted by Aquaculture, Land ? Pond based Aquaculture need lot of land which will be dug to make embacments and then filled with water, the land adjacent to these ponds will be not suitable for agriculture further due to various reason like seepage or due to salinisation of soil when these ponds are pumped with salt water. Water ? Almost all the water bodies adjacent to fish/shrimp ponds or water bodies harboring fish cages have been polluted or getting polluted and ending up eutrophication. Finally most of the water bodies become unfit to use the water for drinking purpose due to high usage of chemicals, pesticides, drugs in Aquaculture and also the effluent water contains high nitrite, nitrate, phosphate etc. Air - Ammonia (NH?) Emissions, Ammonia is released from fish waste and uneaten feed, high in intensive or poorly managed systems, especially recirculating aquaculture systems (RAS) and ponds with high stocking densities, NH? is a harmful air pollutant, causing respiratory issues in humans and contributing to eutrophication and acid rain when deposited on land. Methane (CH?) Emissions, Anaerobic decomposition of organic matter in sediments or sludge (bottom of ponds), especially significant in poorly aerated ponds, where sludge accumulates and breaks down without oxygen, Methane is a potent greenhouse gas (GHG). Hydrogen Sulphide (H?S) Release, produced under anaerobic conditions in sediment, has a rotten egg smell and is toxic to fish and humans in high concentrations, Common in poorly maintained pond bottoms or sludge-heavy systems. Nitrous Oxide (N?O) Emissions, formed during nitrification and denitrification in water and biofilters, N?O is a powerful greenhouse gas, with 300? the warming potential of CO?. Particulate Matter (PM), In land-based operations, activities like feed handling, fish processing, or construction can release dust and fine particles, can affect local air quality, especially near large aquaculture farms. Analysing the aquaculture production methodology, improvising the technology, compromising on feeding choices etc can only bring sustainability to Aquaculture and protect the right of future generations also to live, without ruining their future by damaging the environment today. Biofloc Technology is the future alternative technology which addresses all key factors and brings sustainability and food safety for future generations.
KEYWORDS: Aquaculture Sustainability
