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Plight of the yellow perch

This is why we need fish farms such as Sweet Water Organics more than ever!

Plight of the yellow perch
Journal Sentinel, By: Paul A. Smith, July 9, 2011

Exerpt: Perch have suffered from years of extremely poor recruitment, or survival of young fish, since the early 1990s.

The decline of the native fish is thought to be linked to drastic changes in the lake's food web brought on by invasive zebra and quagga mussels in the last two decades.

In addition to poor recruitment, a troubling sex imbalance has recently emerged in the population, prompting research into a hormonal syndrome.

"There is certainly concern for the perch," said Pradeep Hirethota, senior fisheries biologist for the Department of Natural Resources.

According to population estimates, the number of perch in the Wisconsin waters of Lake Michigan has declined from 24.6 million in 1990 to 2.6 million in 2000 to 316,210 in 2009, the last year for which data are available.

In response to the decline, Wisconsin closed the commercial perch fishery on Lake Michigan in 1996. Illinois and Indiana also closed their commercial perch fisheries. Michigan allows some tribal harvest of perch.

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This entry was posted on July 11 2011