Leonard Jirak's electro-fishing boat, the Glow Worm, helps the biologist to follow annual trends in bass and panfish populations.
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Michael Pearce / The Wichita Eagle
Two common panfish, the redear, bottom, and the bluegill, were found in the Melvern River Pond shallows.
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Michael Pearce / The Wichita Eagle
Biologist Leonard Jirak logs the length and weight of fish that were caught by electro-fishing.
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Michael Pearce / The Wichita Eagle
Channel catfish up to 20 pounds, like this one held by biologist Leonard Jirak, are probably easier to catch in Kansas than ever before.
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Michael Pearce / The Wichita Eagle
All fish that were caught and for which statistics were logged were weighed in grams.
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Michael Pearce / The Wichita Eagle
Measuring and weighing the fish that are caught while electro-fishing isn't always easy. It took three biologists to hold this 34-inch catfish still long enough for an accurate weight.
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Michael Pearce / The Wichita Eagle
John Tucker holds one of the largest bass found while electro-fishing at Melvern River Pond.
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Michael Pearce / The Wichita Eagle
Fisheries specialist John Tucker measures the length of a big channel catfish.
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Michael Pearce / The Wichita Eagle
Stunned fish float to the surface after being shocked by 220 volts of electricity.
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Michael Pearce / The Wichita Eagle
A stunned redear sunfish floats on the surface. It eventually swam away.
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Michael Pearce / The Wichita Eagle
Scott Rice of the U.S. Army Corps of Engineers swings a large fish aboard while helping with electro-fishing Thursday morning at Melvern River Pond.
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Michael Pearce / The Wichita Eagle
A livewell kept fish healthy so they could be released after being weighed and measured.
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Michael Pearce / The Wichita Eagle
In the shallows to spawn and feed, largemouth bass are one of the most common fish found while electro-fishing.
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Michael Pearce / The Wichita Eagle
All across Kansas, most public waters of any size are being sampled by electro-fishing.
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Michael Pearce / The Wichita Eagle
Biologists motor toward a brush pile while electro-fishing at Melvern River Pond.
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Michael Pearce / The Wichita Eagle