Degrees of separation: MUN study shows warming ocean may favour cod growth, hurt snow crab in Canada

A study conducted by a team of eight researchers from various institutions predicts the impact of climate change on the abundance and distribution of marine species, specifically focusing on snow crab, Atlantic cod, and yellowtail flounder in the Grand Banks of Newfoundland. The research indicates significant changes by the end of the century, with snow crab biomass expected to decrease by about 60% due to warming waters, which are less favorable for this species. In contrast, Atlantic cod is projected to benefit from warmer waters, experiencing increased biomass, particularly in the southern Grand Banks. Yellowtail flounder also faces challenges as it requires colder sea-bottom temperatures, which will become scarcer. This study is based on data from the Department of Fisheries and Oceans (DFO) and climate change projections, aiming to guide fishery management decisions and the future of fishing enterprises. The researchers emphasize the need for long-term strategies to mitigate the effects of climate change on these species and the fishing industry, while also highlighting the potential positive impacts on lobster in Newfoundland.