Related topics: fish · algae · mississippi river · invasive species

Intensive fishing finds no more Asian carp beyond barrier

Two weeks of intensive fishing in and around a Chicago waterway failed to produce any proof that more Asian carp have made it past electronic barriers intended to keep the invasive species out of Lake Michigan.

Microbes in the bilge

Microbiologist Steve Techtmann won a DARPA Young Faculty Award (YFA) to study microbial biosignatures that identify what waters they traverse.

Environmentalists sue government for Lake Erie's toxic algae

Environmental groups in Ohio and Michigan sued the U.S. Environmental Protection Agency on Tuesday, accusing it of dragging its feet on protecting Lake Erie from harmful algae that have fouled drinking water supplies in recent ...

Scientists puzzled by mercury's jump in Great Lakes fish

It's not supposed to be like this. Though advisories about toxic mercury in fish have continued in Michigan and the surrounding Great Lakes, with recommendations to limit consumption of certain species to a few times per ...

Sex-shifting fish: Growth rate could determine sea lamprey sex

Unlike most animals, sea lampreys, an invasive, parasitic species of fish damaging the Great Lakes, could become male or female depending on how quickly they grow, according to a U.S. Geological Survey study published today.

Chicago waterways—still flowing after over 100 years

As the city of Chicago has grown in population and industry since it was established more than 180 years ago, so has its need for clean water. Meeting that growing need has presented many challenges. Today, the Chicago Area ...

Science vs. the sea lamprey

Of all the fishy predators in the Great Lakes, few are more destructive than the sea lamprey. There's something of a horror movie in their approach: jawless, they attach to prey such as salmon, whitefish or trout with a sucker ...

January was wetter and warmer than average for the U.S.

By many accounts, winter seemed to stay mostly offstage in January. Rain was the star event, with warmer temperatures in the East having played a supporting role. Except for California: Parts of the Golden State saw more ...

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