Frozen salmon have smaller carbon footprint than fresh

Republishing Guidelines

Yes, unless otherwise noted, you’re welcome to republish InvestigateWest’s original articles and photographs for free, as long as you follow a few simple conditions:

  • You must credit both the author and InvestigateWest in the byline. We prefer: “Author Name, InvestigateWest.”
  • You have to include the tagline provided at the end of the article, which typically reads, “InvestigateWest (investigatewest.org) is an independent news nonprofit dedicated to investigative journalism in the Pacific Northwest. Visit investigatewest.org/newsletters to sign up for weekly updates.”
  • You can write your own headlines as long as they accurately reflect the story.
  • You may not edit our work except to reflect your own editorial style or to update time references (changing “yesterday” to “last week,” for instance).
  • You may use InvestigateWest artwork (photos, illustrations, etc.) ONLY if you publish them alongside the stories with which they originally appeared and do not alter them. You may not separate multimedia elements for standalone use.
  • If you share our stories on social media, we’d appreciate it if you tag us in your posts.

Keep in mind: InvestigateWest sometimes republishes articles from other news outlets and we have no authority to grant republication permission. These stories are identifiable by their bylines and other credits.

We send story alerts to editors at news outlets across the Northwest. Let us know if you want to be included on that list. Questions? Contact us at editors@investigatewest.org.

Copy this

Eat your frozen salmon. Preferably wild, frozen salmon.

rita_hibbardweb

A new study out of Portland shows that frozen salmon consume less energy from net to table than do fresh. And farmed salmon “have a heavy hidden demand on fossil fuels,” the study’s authors said, because the feed can be either forage fish, which would be more efficiently fed directly to people, or corn and soy, which require fuel for growing and harvest.

Ecotrust The Oregonian's Abby Haight.

Ecotrust examined the carbon footprint of catching, harvesting and transporting wild salmon around the world. They found that flash-freezing at sea and shipping later used less energy. Container ships are the most environmentally friendly transportation, the study showed. Most salmon sold around the world, however, are fresh, and never frozen.

For instance, salmon that are flash-frozen at sea can be transported by freighter or train, which uses significantly less fossil fuel than jets. Troll-caught fish burn diesel fuel as ships chase fish across the seas. An Alaska salmon caught by a purse seiner, however, has a low carbon impact, Scholz said.

The study could have broad implications on consumer choices for seafood, Haight writes. For example, the influential group Seafood Watch from the Monterey Bay Aquarium is likely to include production and distribution of seafood in its consumer guides.

-- Rita Hibbard

Get the inside scoop in your inbox, free.

Subscribe to our weekly newsletters and never miss an investigation.

Great! You’ve successfully signed up.

Welcome back! You've successfully signed in.

You've successfully subscribed to InvestigateWest.

Success! Check your email for magic link to sign-in.

Success! Your billing info has been updated.

Your billing was not updated.