Home » Tag Archives: gizzard shad

Tag Archives: gizzard shad

Wehrspann Reservoir Shad Removal, Two Days Later

wehrspanncoldgloomy

Lord knows the recent fisheries management work at Wehrspann Reservoir in west Omaha has been THE topic of discussion this week.  I want to add this update. . . . Our field biologists that did the treatment went back today to see how things looked.  As you can imagine they discovered hundreds of thousands of dead shad.  How many?  I cannot tell you an exact number or even an estimate.  But, there are photos floating around the internet and here …

Read More »

Gizzard Shad Removal from Wehrspann Reservoir

img_0545

I wanted to blog about this today, waited for the news release to be published, and now am finally getting around to it after answering questions about it all day long! Gizzard shad targeted for removal from Wehrspann Lake LINCOLN – The chemical rotenone has been applied at Omaha’s Wehrspann Lake in order to remove gizzard shad. Gizzard shad are susceptible to a low dose of rotenone while fish such as largemouth bass, bluegill, channel catfish and crappie are less …

Read More »

Gizzard shad targeted for removal from Wehrspann Lake

LINCOLN – The chemical rotenone has been applied at Omaha’s Wehrspann Lake in order to remove gizzard shad. Gizzard shad are susceptible to a low dose of rotenone while fish such as largemouth bass, bluegill, channel catfish and crappie are less affected. Low dosages of rotenone are done at low water temperatures to increase its effectiveness on shad and lower impacts on nontarget species. “Gizzard shad are targeted for removal because they are a detrimental species in small reservoirs such …

Read More »

Feasts

One theme I continually return to, and one that some may get tired of hearing me repeat, is that of predator/prey relationships.  Often, when asked for the best place on a body of water to be fishing or the best bait to be using, I reply with a question:  What are the fish eating?  A basic understanding of predator/prey relationships is doubly important to anglers because we not only have to find the fish, we have to make them bite. …

Read More »

Pawnee Reservoir Low-Dose Rotenone Treatment Re-visited

Some of you may remember that fisheries managers for the Nebraska Game & Parks Commission tried an experimental fisheries management technique at Pawnee Reservoir a year ago last fall, Pawnee Renovation.  Unlike typical rotenone renovations where all fish are removed from a body of water, the effort at Pawnee was one where we hoped that a relatively low dose of rotenone would selectively eliminate gizzard shad and white perch. Let me share some more of what we know about that fisheries …

Read More »

Pawnee Renovation

A few weeks ago there was a news release about a fisheries management project being conducted at Pawnee Reservoir west of Lincoln: LINCOLN – A chemical was applied at Pawnee Lake in an attempt to remove unwanted white perch and gizzard shad from the fish population, according to the Nebraska Game and Parks Commission. Rotenone typically is used to eliminate all fish from a body of water; however, a lower concentration of the chemical was applied Nov. 12-13 at Pawnee …

Read More »