Deterioration (2) Foreign exchange (2) Population (2) Habitat (2) Growth (2) Fishing (2) Animales--Crecimiento (2) Cambio exterior (2) Pesca deportiva (2) Restauration (2) Population (2) Lac (2) Habitat (2) Habitat (2) Détérioration (2) Population (2) Change (2) Pêche (2) Croissance (2) croissance (2) pêche (2) habitat (2) lac (2) population (2) Québec (2) Preservation (1) Conservation (1) Reproduction (1) Assaying (1) Communication (1)