Atlantic cod (Gadus morhua) juveniles sheltering in Eelgrass (Zostera marina) bed alongside Cunner (Tautogolabrus adspersus) fish. Once the most caught fish in the world, the cod fishery collapsed in 1992. Juveniles use seagrass beds as a nursery, the healthier the seagrass bed, the better the fisheries are likely to be. Newfoundland, Canada. September.