Tag Archives: Bull Kelp

50 years of data reveals true extent of climate change impacts on kelp forests

Originally published on UVic News

New research from the University of Victoria (UVic) has found that some kelp forests around Vancouver Island were disappearing far earlier than scientists previously thought, highlighting that climate change has been altering our ecosystems long before most people were aware anything was wrong.

“Most research has focused on recent kelp forest losses resulting from well-known marine heatwaves, like the record-breaking ‘Blob’ heatwave that hit our coast a decade ago,” says Brian Timmer, a UVic PhD student, National Geographic Explorer and lead author of the study, recently published in Ecological Applications.

“These recent changes to our kelp forests have been intense. But our research shows that some areas of the BC coast have been warming much faster than the global average, and associated kelp declines began decades ago. We’ve been underestimating the magnitude of ocean-warming impacts for years.” Chris Neufeld, co-author and senior aquatic ecology at LGL Limited

Continue reading 50 years of data reveals true extent of climate change impacts on kelp forests

Rays of hope for kelp and climate in south Salish Sea

Editor’s note: Bull kelp grows from Alaska’s Aleutian Islands to Santa Barbara County in California. There is a lot of it around Vancouver Island, and in the waters off both Cortes and Quadra Islands.

Canada’s National Observer, Local Journalism Initiative Reporter

It’s not all doom and gloom for the rich underwater kelp forests in the southern Salish Sea struggling to weather increasingly warm oceans. 

Some pockets of bull kelp vital for sea life off southern Vancouver Island and B.C.’s Gulf Islands are proving to be resilient to rising sea temperatures and marine heat waves, a new University of Victoria study has found. 

Continue reading Rays of hope for kelp and climate in south Salish Sea

The ocean’s kelp forests are worth serious coin

Canada’s National Observer, Local Journalism Initiative Reporter

Underwater forests represent an average of $500 billion annually in benefits to commercial fisheries, ocean pollution removal and carbon absorption, a new international study shows.

The study is the first to examine the value of kelp’s ocean canopies — found along a third of the world’s shores and on all three of Canada’s coasts, said Canadian co-author Margot Hessing-Lewis, a researcher with the Hakai Institute and the University of British Columbia. 

Continue reading The ocean’s kelp forests are worth serious coin