Fish | STLPR

Marybeth Brey, left, of the U.S. Geological Survey, teaches a student from Iowa State University how to tag a silver carp.

Scientists find success at repelling invasive carp by playing annoying sounds at them

Eleanor Lindenmayer

Marybeth Brey, a research fish biologist with the Geological Survey and Christa Woodley, a research biologist with the Army Corps of Engineers, designed and installed a 16-speaker soundbar at Lock 19 in the Mississippi, a section of the river between Keokuk and Hamilton.

Kevin Haupt, Edward Sterling, and Jim Studdard with US Fish and Wildlife Services are on a boat at the Maple Island Boat Launch are looking for lake sturgeon larvae in a bucket. The team used nets to look for larvae attached to rocks.

Health, Science & Environment

Lake sturgeon show signs of creating a self-sustaining population in Missouri

Britny Cordera

Missouri’s endangered prehistoric fish is making a comeback. This is the second year in a row lake sturgeon spawning has been seen at the Maple Island Access in West Alton.

Asian carp are vastly overpopulated across the Mississippi River basin, crowding out native fish species and creating competition for food sources like phytoplankton.

Health, Science & Environment

From ‘Asian carp’ to ‘copi,’ an ugly fish gets an appetizing marketing makeover

Dana Cronin

The invasive fish species known as Asian carp now goes by “copi,” in an effort to get more of them out of Midwestern waterways and onto the dinner table.

Tim Schroeder holds a hatchery-raised pallid sturgeon bound for the Missouri River. The species, which can grow up to six feet long and weigh 100 pounds, was once common in the Missouri River.

Health, Science & Environment

Pallid Sturgeon Released Into Missouri River In Effort To Save The Endangered Species

Shahla Farzan

Tim Schroeder is a little bleary-eyed.He left South Dakota before sunrise and drove 10 hours straight to Missouri — with a few hundred endangered fish in…

Lake Sturgeon live in the Missouri and Mississippi Rivers and their tributaries. They can live more than 100 years and weigh as much as 300 pounds.

Health, Science & Environment

Jurassic fish reproducing once more in Missouri rivers

For the first time in 30 years, the Missouri Department of Conservation has confirmed evidence that the state-endangered lake sturgeon is reproducing in…

Health, Science & Environment

On Science: Restaurant forensics

This article first appeared in the St. Louis Beacon: August 26, 2008 - This past week, we learned of two Manhattan high school students who, in a science…