Study shows black bears need a variety of salmon species to be healthy

They studied animals across a 22,000-kilometre stretch along coastal British Columbia’s ‘Great Bear Rainforest’

Black bears need access to different species of salmon rather than huge numbers of a single variety in order to be healthy, a new study by Canadian researchers indicates.

Lead author Christina Service said if bears have access to a “portfolio of different salmon species” then the animals have access to more food for a greater part of the year.

“It is the equivalent of humans going to an all-you-can-eat buffet for just a couple of days versus having one good meal a day for many months,” said the PhD candidate from the University of Victoria, adding that different species of the fish have different run timings and use different habitat.

When they have access to the fish for a larger part of the year, they end up eating more salmon overall and are in better health, she said.

The team of researchers used chemical techniques on hair samples from 379 black bears and 122 grizzly bears between 2009 and 2014 to estimate their salmon consumption, which showed population productivity and health.

They studied animals across a 22,000-kilometre stretch along coastal British Columbia’s “Great Bear Rainforest,” in collaboration with the Wuikinuxv, Nuxalk, Heiltsuk and Kitasoo/Xai’xais First Nations.

READ MORE: Ryan Reynolds to narrate movie about B.C.’s Great Bear Rainforest

With bears hibernating in winter, they have only certain windows where they’re able to eat, Service said.

So by having access to salmon earlier in the year bears can start fattening up sooner, she said.

Kitasoo/Xai’xais First Nation Chief Councillor and study collaborator Douglas Neasloss said he is concerned that the federal government’s current salmon management focuses on large salmon runs and often ignores smaller runs that contribute to diversity.

Study co-author Chris Darimont said researchers have expressed concern about the health of all salmon populations.

“It’s a difficult time to be a salmon these days with climate change, reduced ocean productivity, over-exploitation, diseases from salmon farms and neglect in management,” he said.

Service said the federal government should think about the management of fisheries in a holistic sense.

This means thinking of fisheries as benefitting not just commercial and recreational interests but other wildlife and ecosystems too, she said.

“We need to consider species diversity and not just abundance.”

So not just those that are easy to produce in hatcheries and commercially valuable but the smaller runs too, she said.

“Those (smaller) runs really matter for bears.”

READ MORE: Problem bears in Sooke break into car and have a party in a shed

She said research shows the more variety of salmon that bear eat, the bigger they get, the more offspring they are able to have and the better those offspring do.

Bears play a really important role in the moving of nutrients, she said, explaining that salmon are moved from water to land and bears act as gardeners by fertilizing the ground with fish carcass.

Nutrients from salmon carcasses not just help trees but other species too, she said.

“It is important to care about bears because they are bears and they have intrinsic value, but the bear-salmon relationship is also very important to ecosystem,” Service said.

Hina Alam, The Canadian Press


Like us on Facebook and follow us on Twitter.

Just Posted

Sewage fees going up 10% in Harrison Hot Springs

Residential homes will pay $22.50 more in 2019 to flush their toilets

Missing Chilliwack man last seen on Island 22

Paul James Braumberger, 66, hasn’t been heard from since Jan. 11

AESS senior girls eyeing spot in basketball provincials

The team needs to move up one more ranking get a place in the championships

End ‘exploitative’ parking fees at Lower Mainland hospitals, group says

HospitalPayParking.ca is criticizing a new contract between health authorities and Impark

B.C.’s best craft distilleries back in Chilliwack for Fraser Valley Distillery Festival

Small-batch spirits, appetizers, live music, candy and more come together for FV Distillery Festival

VIDEO: Harrison sailor looking for competitors to race model boats

Bernhard Van Velze is hoping to create a club for model sailboats at Harrison Lake

Judge annuls hairdresser’s forced marriage to boss’ relative

Woman was told she’d be fired if she didn’t marry boss’s Indian relative so he could immigrate here

Video: Runaway Coquihalla dog returned to owner

Archer, the dog found roaming along Coq. Hwy. on Jan. 19, has been reunited with owner

Liberals look to make home-buying more affordable for millennials: Morneau

Housing is expected to be a prominent campaign issue ahead of October’s federal election

Abbotsford woman speaks out after she fainted and bystanders ignored her

Meghan Canavan says bystanders walked by with no offer of help after she fainted recently

Cannabis-carrying border crossers could be hit with fines under coming system

Penalties are slated to be in place some time next year

Man accused of threatening to kill ‘as many girls as I see’

Christopher W. Cleary wrote he was angry because he’d never had a girlfriend and wanted to ‘make it right’ with a mass shooting

Canadian talent abound on newly revamped Vancouver Whitecaps squad

Lineup is full of new faces after the organization parted ways with 18 players over the off-season

Most Read