Could seaweed be a salve to debate over salmon farming?

Seaweed is great at dealing with the waste from salmon farms and providing producers with another cash crop, says researcher Thierry Chopin. Photo by Steve Backman.

For well over a decade, scientists on Canada’s coasts have demonstrated how growing seaweed or shellfish alongside salmon farms can provide a host of benefits — economic and ecological.

Researcher Thierry Chopin has been pitching the idea of co-cultivating multiple species together, or Integrated Multi-Trophic Aquaculture (IMTA), since the late 1990s.

The notion behind co-cultivation, or IMTA, is that extractive species like seaweed, mussels, or sea cucumbers can filter or flourish from the uneaten feed, waste, and byproducts from fish farms.

Modelled around the natural food chain, IMTA takes a circular economy approach to aquaculture that both improves marine ecosystem health and increases the number of products that can be grown at one site, said Chopin, a marine biology professor at the University of New Brunswick.

If shellfish are added to the mix, they could benefit from seaweed carbon capture, which, in a localized area, may reduce ocean acidification that threatens the growth of shells on baby mollusks.

Rochelle Baker, Canada’s National Observer, 22 February 2021. Full article.

0 Responses to “Could seaweed be a salve to debate over salmon farming?”



  1. Leave a Comment

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Google photo

You are commenting using your Google account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s

This site uses Akismet to reduce spam. Learn how your comment data is processed.




Subscribe to the RSS feed

Powered by FeedBurner

Follow AnneMarin on Twitter

Blog Stats

  • 1,442,753 hits

OA-ICC HIGHLIGHTS

Ocean acidification in the IPCC AR5 WG II

OUP book

Archives