Biomanipulation as a Fisheries Management Strategy in Lacustrine Ecosystems
Binal Rajeshbhai Khalasi *
College of Fisheries, Mangaluru, Karnataka Veterinary, Animal and Fisheries Sciences University, 575002, India.
Prabhutva Chaturvedi
College of Fisheries Science, Chaudhary Charan Singh Haryana Agricultural University CCSHAU, Hisar - 125 004, India.
Sheethal K.U
College of Fisheries, Mangaluru, Karnataka Veterinary, Animal and Fisheries Sciences University, 575002, India.
Bhavy A. Dalsaniya
College of Fisheries, Mangaluru, Karnataka Veterinary, Animal and Fisheries Sciences University, 575002, India.
Chonyo Shinglai
College of Fisheries, Mangaluru, Karnataka Veterinary, Animal and Fisheries Sciences University, 575002, India.
Mayurkumar U. Tandel
College of Fisheries, Mangaluru, Karnataka Veterinary, Animal and Fisheries Sciences University, 575002, India.
Narendra Kumar Maurya
College of Fisheries, Mangaluru, Karnataka Veterinary, Animal and Fisheries Sciences University, 575002, India.
Shiwam Dubey
College of Fisheries, Mangaluru, Karnataka Veterinary, Animal and Fisheries Sciences University, 575002, India.
Bipina biju
Kerala University of Fisheries and Ocean Studies, Panangad Road, Madavana, Junction, Kochi, Ernakulam, Kerala, 682506, India.
Farzan Nevil Patel
College of Fisheries, Mangaluru, Karnataka Veterinary, Animal and Fisheries Sciences University, 575002, India.
*Author to whom correspondence should be addressed.
Abstract
Eutrophication resulting from high nutrient loading has been the paramount environmental problem for lakes world-wide for the past four decades. Around the world, efforts are being made to divert nutrient-rich inflows or improve wastewater treatment in order to lessen external nutrient loading. Under such circumstances, the economical biomanipulation approach may be regarded as one of the best ways to address the issue of eutrophication and restore the water quality in small, shallow estuaries. The original theory behind biomanipulation was that fewer planktivorous fish meant a higher density of giant cladoceran zooplankton, and that their summertime grazing may lower the quantity of particular planktonic algae species and lower the water's algal turbidity. More scientific studies are required to determine whether bio-manipulation of lake ecosystems can have long-term beneficial consequences. Finally, the potential of biomanipulation for enhancing lake water quality was assessed based on the existing empirical and theoretical evidence
Keywords: Eutrophication, lake ecosystem, biomanipulation, environmental problem