Yellow Perch (Perca fl avescens) in the St. Lawrence River (Québec, Canada): Population Dynamics and Management in a River with Contrasting Pressures

Leonard Cohen, our famous poet, singer, and song writer, was born and lived near the St. Lawrence River in Montréal. It is easy for artists like him-or for Suzanne from his well-known song-to be inspired. They get close to the river, simply ask, and let the St. Lawrence River answer…. For scientists, answers must be drawn from data, from facts. Understanding what might have happened under the water is not an easy task, especially when observed changes are complex and have evolved over decades.