Tennessee Wildlife Resources Agency

TWRA's Region 4 - East Tennessee

Reservoir Fisheries Management Program

Shad Gill Netting

 

Shad gill net surveys have been conducted on several East Tennessee Reservoirs over the past few years. The sampling method was derived from a 1991 study by the Oklahoma Departement of Wildlife Conservation (see following link). The information obtained helps determine the relative density of prey available to various game fish. This netting technique has an added benefit of providing good samples of hybrid striped bass and walleye.

The “experimental” gill nets used contain various size meshes which enable the capture different size shad. The nets are 225-feet long and 8-feet deep. They are made up of nine, 25 foot sections of 0.4, 0.5, 0.6, 0.8, 1.0, 1.3, 1.5, 1.8, and 2.0-inch monofilament mesh. They are set just below the surface overnight and retrieved the following day.

Oklahoma Shad-a-thon

The following graphs demonstrate the type of information obtained using this sampling technique. See the annual reports for lake specific results.


Shad netting on Norris Lake

Geomenans

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