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Reservoir_Fisheries

2013-11-13 来源: 类别: 更多范文

Reservoir Fisheries Reservoir Fisheries - Methods for Fish Stock Assessment and Management Reservoirs are complex artificial environmental and biological systems. Geologically speaking, reservoirs are relatively infant systems, tending to change more rapidly than other aquatic ecosystems. The flora and fauna that populate reservoirs evolved in lakes or rivers and thus are not well adapted to live in these human-made environments. These complexities make reservoirs fascinating systems that present a challenge in understanding and managing the natural resources within them. Reservoirs also support important recreational activities, accounting for nearly 48% of all freshwater fishing activity in the U.S. and 45% of Mississippi freshwater fishing. Almost $80 million is spent annually on fishing Mississippi reservoirs. With this fishing, fish, reservoirs, systems, reservoir, populations, within, understand, recreational, mississippi, management, developed, computer, been, aquatic, water, understanding, tools, enable, thus, these, complexities, than, other, tending, techniques, taken, support, stock, assessment, spent, software, shows, shad, restructuring, restrictions, resources, reservoirs, research, research, relatively, regulations, sampling, rapidly, provided, insight, present, predict, practices, powerful, potential, population, dynamics, populate, plant, manipulations, place, patterns
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