This course constitutes a critical review of the dynamics and the rules of assembly that are distinctive to marine biological communities. Its main goal is the exploration of the organizing mechanisms behind spatial and temporal patterns exhibited by planktonic and benthic communities. Although the focus is on general principles and broad ideas, specific problems and practical work relate primarily to communities and habitats from Atlantic Canada. Three hours lecture, three hours laboratory a week. 11-01-2022-07-04-2022 Lecture Tuesday, Thursday 10:00AM - 11:15AM, Duffy Science Ctr, Room 204