Tag Archives: gizzard shad

One of the frustrations of fish identification is that different fish are called a variety of common names.  Sometimes it depends on who you ask. That may not be a problem unless you are a pointy-headed fisheries biologist.  Then, calling the right fish by the right name is important.  That does not necessarily mean a person has to go around spouting scientific names, but we can be a little bit “anal” about using the right names for the right fish. …

LINCOLN, Neb. – Rock Creek Lake will be drawn down over the next few months in preparation for a fish renovation. The project at the Dundy County lake aims to improve water quality and sportfish potential by eliminating gizzard shad. When the water level is down, cedar trees will be used to build fish habitat structures in the lakebed. Rotenone will be applied this fall to remove undesirable fish. Sport fish will be restocked as the lake refills before winter. …

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 …

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 …

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 …

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. …

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 …

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 …