Saving Seafood

Glaciers’ retreat could open new Alaska salmon habitat

January 12, 2022 — Melting glaciers in Alaska and British Columbia could open up new stream habitat for Pacific salmon – conceivably almost equal to the length of the Mississippi River by 2100, under one scenario of “moderate” climate change.

But on balance a warming climate will continue to take its toll on salmon populations on the U.S. Pacific coast.

Researchers from Simon Fraser University in British Columbia and the NMFS Northwest Fisheries Science Center in Seattle, Wash., published their findings from modeling glacier retreat in the journal Nature Communications, looking at how new salmon spawning streams might appear as ice melts, bedrock gets exposed and new streams thread over the exposed landscape.

“We predict that most of the emerging salmon habitat will occur in Alaska and the transboundary region, at the British Columbia – Alaska border, where large coastal glaciers still exist,” lead author professor Kara Pitman of Simon Fraser University says in a NMFS summary of the findings.

Read the full story at National Fisherman

The most important environmental and sustainability stories of 2018

December 21, 2018 — Sustainability has become a buzzword in the seafood industry in recent years, a prerequisite for doing business in the 21st century.

But with the advent of real effects of climate change being felt in fisheries and aquaculture operations around the world, paying attention to environmental news is no longer shunted off to corporate sustainability officers.

In 2018, even more evidence was presented that increasing water temperatures, ocean acidification, and deoxygenation caused by climate change will result in devastation and disruption in the world’s marine economy. A November report by the U.S. Global Change Research Program, compiled by 13 U.S. government agencies, painted a grim picture of the future of both U.S. and global fisheries as the effects of climate change continue to advance.

Beyond economic damages, upheaval in the global marine economy is likely to lead to political upheaval, a study published in the journal Science in August revealed. Climate change is driving fish species to migrate to new areas, with fish and other marine animals shifting toward the poles at an average rate of 70 kilometers per decade. That rate is projected to continue or even accelerate as the planet warms. In the process, they’re crossing political boundaries – potentially setting up future conflicts as some countries lose access to fish and others gain it, according to the report.

Read the full story at Seafood Source