Tennessee Wildlife Resources Agency

TWRA's Region 4 - East Tennessee

Reservoir Fisheries Management Program

South Holston Lake - Electrofishing 2016

Sampling date: April 20 - 21, 2016
Species collected in survey (20 runs, 5.0 hrs total effort):

Black Crappie = 138
Blacknose Black Crappie = 8
Smallmouth Bass = 216
Largemouth Bass = 148


The total number of largemouth bass collected was above average, compared to the last 10 years. A PSD value of 78 would indicate that the size structure is slightly dominated by larger fish. There were also good numbers of largemouth collected under 10-inches, which should keep the quality of this fishery stable.

The total number of smallmouth bass collected was the highest number collected in the past 10 years, at 43.2 fish/hour. The number of smallmouth over the MLL of 15-inches was also slightly above normal at 10.4 fish/hour. There were also good numbers of smallmouth bass collected from 7 to 14 inches. These fish should recruit into larger size classes and result in more keeper size fish for anglers to catch.

We did not collect any spotted bass in our electrofishing sample this year. Spotted bass rarely reach quality size in east Tennessee reservoirs and they compete with other more desirable black bass species. Spotted bass have also been shown to hybridize and prey on other black bass species.

The number of black crappie collected in 2016 was one largest samples collected on the reservoir at 27.2 fish/hour. There was also a large number of crappie collected over the MLL of 10-inches.

 

Largemouth bass size structure


 

Largemouth bass condition


 

Smallmouth bass size structure


 

Smallmouth bass condition


 

Black crappie size structure

 

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