In the early 1980s, a winter recreational fishery developed for groundfish in the Saguenay Fjord (Québec, Canada). Fishers discovered a unique ecosystem harboring a wide variety of fish species, including deepwater redfish (Sebastes mentella), Atlantic cod (Gadus morhua), Greenland cod or ogac (Gadus ogac) and Greenland halibut (Reinhardtius hippoglossoides). The recreational fishery and an associated tourism activity grew rapidly, with villages of fishing huts being established on the pack ice between Saint-Fulgence and L’Anse-Saint-Jean. This led to concerns among several stakeholders in the community about the conservation of fish stocks and the sustainable development of the fishery. As a result, in 1995, a monitoring program was established. This program is coordinated by Fisheries and Oceans Canada and delivered in collaboration with numerous partners, including Parks Canada and the Société des établissements de plein air du Québec (the co-managers of the Saguenay–Saint-Laurent Marine Park), local fishing associations, and Promotion Saguenay. This collective effort has highlighted significant changes in the status of groundfish populations in the Saguenay Fjord and introduced management measures aimed at protecting these resources.