fish

Associate professor Anne Todgham studies stress in sea creatures

Anne Todgham on how how Antarctic fish cope with climate stress

Some Antarctic fish living in the planet’s coldest waters are able to cope with the stress of rising carbon dioxide levels in the ocean. They can even tolerate slightly warmer waters. But they can’t deal with both stressors at the same time, according to a study from the University of California, Davis.
Studying Mozambique tilapia, the researchers found that short DNA segments enhance expression of genes that regulate the fish's internal body chemistry in response to salinity stress. (Photo by Greg Hume/Creative Commons)

Research led by Dietmar Kueltz sheds light on how some fish adapt to saltwater

By Pat Baily, UC Davis News

Most fish live either in freshwater or saltwater, but others, including tilapia, have the remarkable ability to physiologically adjust to varying salinity levels — a trait that may be critically important as climate change begins to alter the salinity of ocean and coastal waters as well as the water in desert lakes and creeks.

Subscribe to fish Content