6304 Results
1

Trout don’t follow the weather forecast

September 11, 2020

University of Cincinnati visiting assistant professor of biology Michael Booth studied the migration patterns of steelhead, a subpopulation of rainbow trout that migrates to the Pacific Ocean, where the growing fish hunt and feed until they return to their natal freshwater streams to spawn.

2

Fish exposed to estrogen produce fewer males

October 22, 2020

UC assistant professor Latonya Jackson conducted experiments with North American freshwater fish called least killifish. She found that populations of killifish exposed to estrogen in concentrations of 5 nanograms per liter in controlled lab conditions had fewer males and produced fewer offspring. Scientists have found estrogen at as much as 16 times that concentration in streams adjacent to sewage treatment plants.