Coregonid fishes are an interesting and important group of freshwater and anadromous fishes. Coregonids are highly adaptable to diverse environmental conditions and are widely distributed throughout the Holarctic. They support substantial commercial, subsistence, and recreational fisheries. Also, Coregonid fishes are the basis of aquaculture operations in some countries and rearing techniques are important for aquaculture and for sustaining and augmenting natural populations. Coregonids are fascinating subjects for the study of evolutionary and zoogeographic problems. These fishes are also useful in the study of general fish biology and interspecific interactions. This volume contains the proceedings of the Fifth International Symposium on the Biology and Management of Coregonid Fishes. The objectives of the symposium were to address all aspects of biology, genetics, aquaculture and management of coregonid fishes, throughout their entire geographic range. The conference themes were: biology, life history and population dynamics; genetics and systematics; aquaculture; fisheries and fisheries management and human interventions.