(Phys.org)—A small team of researchers with members from the U.S. and Switzerland has found an example of a fish that did not always benefit in the end from an evolutionary change. In their paper published in the journal ...
Over-fished yellow perch in Lake Michigan have recovered much quicker - by hundreds of years - in reaching reproductive maturity at a later age and larger size than scientists previously thought was possible, according to ...
Evolution
Aug 11, 2015
2
51
A plentiful supply of yellow perch was once available in the U.S. Great Lakes region, but that changed in the 1990s. Populations of this Midwest fish-fry favorite dropped dramatically due to the invasion of the zebra mussel, ...
Plants & Animals
Jun 3, 2014
2
1
Thousands of fish have died in recent days in the Gunpowder and Bird rivers in eastern Baltimore County, and officials believe a toxic algae bloom is to blame.
Ecology
Dec 28, 2016
0
68
Sport fish have declined significantly in portions of the Upper Mississippi River infested with Asian carp, adding evidence to fears about the invader's threat to native species, according to a new study.
Ecology
Nov 16, 2019
3
347
A swarm of flying robots soars into a blazing forest fire. With insect-like precision and agility, the machines land on tree trunks and bound over rough terrain before deploying crucial sensors and tools to track the inferno ...
Robotics
Jun 29, 2010
0
0
Flinders University scientists have created a model for conservation programs after helping to bring local populations of native pygmy perch back from extinction.
Ecology
Mar 9, 2016
0
17
Research has suggested yellow perch grow more rapidly during the short winters resulting from climate change, but a new study shows warmer water temperatures can lead to the production of less hardy eggs and larvae that have ...
Environment
Jul 15, 2015
1
274
When Dong-Fang Deng and her students make feed for the fish they raise at UWM's School of Freshwater Sciences, they often use ground fishmeal—dried fish parts from fisheries or wild catch—as the protein source.
Plants & Animals
Jul 25, 2022
0
758
From his lakefront dock in Crystal Rock, 70 miles west of Cleveland, Dean Koch still gleefully reminisces on his career as a commercial fisherman in the heyday.
Ecology
Nov 20, 2019
0
48
