06/17/2026
How are we experiencing climate change on the fish farm? 🌎🐟 RJ was asked this during Toronto Climate Week while speaking on a panel about climate impacts of food.
Our family has been raising fish for over 50 years, and here's what we're seeing:
☝️ Warmer water
The fish we raise do best below 20°C. Years ago, we rarely exceeded that. Now we pass it every summer, with a record high of 26.7°C last year. Warmer water means less feeding, more oxygen, lower stocking densities, and longer grow-out times.
✌️ More intense storms
Heavy rains and flooding seem to arrive faster and hit harder, creating extra stress for our fish and farm operations.
🤟 More disease pressure
Warmer temperatures let bacteria thrive, more rainfall can carry them further through landscapes, and fish stressed from warm water and storms are more vulnerable. We respond with stronger nutrition, biosecurity, and good husbandry.
🖖 Fish farms are often an easy target
We're seeing fewer wild fish and less biodiversity. More often than not, these changes are the result of a century or more of development, habitat changes, and other pressures like logging, river damming, and climate change. Yet fish farms are often singled out, even when the science says otherwise.
Despite these challenges, we're optimistic. Local fish remains one of the most climate-friendly sources of protein, with a remarkably small environmental footprint. 💙
Climate change is creating new challenges for farmers everywhere, but it also reminds us why local food matters. We're proud to keep raising sustainable fish close to home!
Thanks to the Arrell Food Institute at the University of Guelph for such an amazing discussion and opporTUNAty!