A preliminary ecological survey was conducted along the northern Brittany coast for the purpose of evaluating the initial impact of the Amoco Cadiz oil spill on intertidal macrofaunal communities. Specific objectives were to observe obviously oiled, dead, or moribund organisms on contaminated beaches, and to conduct a limited examination of the structure and composition of benthic communities considered at risk to impact. Results reflecting these objectives are discussed for a variety of habitats. |