Tag Archives: warmer water & salmon

Water

Studying The Water Budget For Quadra Island; a model for the future

ICAN’s water security team and the We Wai Kai First Nation have embarked upon an exploration of Quadra Island’s water systems.

While this is a Quadra study, everything they are doing is applicable to Cortes and every other British Columbian island where there is a sizeable population. They are offering a model of how we can prepare for the future.  

“The project started a number of years ago, really centered on the concerns of local people on Quadra about the nature of their water supply. People were really worried about what was going to happen with both climate change, whether it’s going to be getting hotter (particularly in the summers) and with development. Every new person that moves on to the island usually sinks a well. If they sink a well, they’re pulling quite a bit of water out of the aquifer. We wanted to know, would the aquifer actually meet our needs? Also, what needs does the environment have? And what will happen when things like climate change influences the availability of water,” explained Colin Chapman, who, together with his partner Claire Hemingway, is a key leader in this project. 

Continue reading Studying The Water Budget For Quadra Island; a model for the future →
Rivers & Oceans

Baby sockeye salmon are growing faster due to climate change. Is bigger better?

Editor’s note: Most of the salmon on Cortes Island are Chum, not Sockeye, but a DFO study of scale growth measurements from the Big Qualicum River suggests Chum are also being affected by climate change. Chum salmon appear to be growing smaller ‘due to increased ocean temperatures driven by climate change‘ and also the increased competition over a diminishing number of prey. There are also reports of them relocating to more northern locations. In October 2023, a University of Alaska study revealed that 100 Chum had been found in waters emptying into the Arctic Ocean. They were ‘either actively spawning or had finished spawning.’ Lead author Peter Wesley wrote, “Throughout most parts of the salmon’s range, things have gotten too warm and they’re starting to blink off. In the Arctic, the water is getting warm enough and they’re starting to blink on.”

Canada’s National Observer, Local Journalism Initiative Reporter

Climate change has tipped the scales, causing juvenile sockeye salmon in B.C. to grow bigger over the past century. 

The growth of salmon using lakes as nurseries during the first years of life in northern B.C. is about 35 per cent higher than 100 years ago, a new study from Simon Fraser University shows. 

Continue reading Baby sockeye salmon are growing faster due to climate change. Is bigger better? →
Environment, Rivers & Oceans

Marine heatwaves a threat to B.C.’s shellfish industry says expert

Editor’s note: The shellfish industry is one of Cortes Island’s principle employers.

By Mick Sweetman,  CHLY 101.7 FM Nanaimo, through an LJI grant from Canada-info.ca

This summer was hot, not only for us, but also for the life in our oceans as marine heatwaves swamped B.C’s coastal waters. According to researchers, sea temperatures off northeastern Vancouver Island reached 21 degrees Celsius in July, boiling kelp alive.

In the first week of August the average global sea surface temperature reached a record-breaking 30 degrees Celsius.

Continue reading Marine heatwaves a threat to B.C.’s shellfish industry says expert →
Environment

Unchecked climate change puts Canada’s West Coast in hot water

Canada’s National Observer, Local Journalism Initiative Reporter

Last year was the hottest on record for the ocean, an upward trend only expected to continue as it wreaks havoc on coastal communities and spurs irreversible losses to marine ecosystems. 

Ocean warming has cascading effects, melting polar ice and causing sea-level rise, marine heat waves and ocean acidification, the United Nations’ panel of climate experts made clear on Monday.

Sea-level rise has doubled in the last three decades, reaching a record high in 2021, the Intergovernmental Panel on Climate Change reported. Rising seas, coupled with more extreme weather, are setting the stage for a perfect storm of flooding for coastal communities. 

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Rivers & Oceans

The Cortes Island Streamkeepers need help

The Cortes Island Streamkeepers are looking for volunteers, and also hoping that the community steps up its efforts to combat climate change. 

“There’s quite a few tasks we have to do,” explained Leona Jensen. 

One of them is in the Klahoose hatchery. 

Continue reading The Cortes Island Streamkeepers need help →