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建立人际资源圈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
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