1Professor, Department of Mathematical Modeling, College of Natural & Computational Sciences, P.O. Box 445, College of Natural & Computational Sciences, Debre Berhan university, Ethiopia
2Department of mathematics, College of Natural & Computational Sciences, P.O. Box 445, College of Natural & Computational Sciences, Debre Berhan University, Ethiopia
3Department of Mathematics, College of Natural & Computational Sciences, P.O. Box 445, College of Natural & Computational Sciences, Debre Berhan University, Ethiopia
Hawassa Lake and Tana Lake in Bahder are in Ethiopia most important source of inland fishery production. After it was initially fished down in the first half of the 20thcentury, lakes became home to a series of introduced food fishes. Data on the resurgence of the indigenous species suggest that heavy fishing of lakes may enhance biodiversity. This has spawned renewed interest in management options that promote both fishery Sustainability and Biodiversity conservation.
Sustainability in fisheries has over the past decades evaluated from species maximization concepts to covering ecosystem. Recently, the idea balanced harvest that is harvesting all components in the ecosystem in proportion their productivity it requires a fundamental change to management. In this paper, we review the objectives of theoretical background and practicalities of securing high yielding fisheries in inland waters, with empherical examples from lake water (Tropical fresh water) fisheries. These all evaluated through biological modeling with help of typical dynamic trajectory, quantitative to qualitative methods
Sustainability Management, Biomanipulation, Balance harvesting, Regression fit line for Biogeography, Optimization of Linear Programming
