3 Works

Data from: Disentangling invasion processes in a dynamic shipping - boating network

Anaïs Lacoursière-Roussel, Christopher W. McKindsey, Dan G. Bock, Melania E. Cristescu, Frédéric Guichard, Philippe Girard & Pierre Legendre
The relative importance of multiple vectors to the initial establishment, spread, and population dynamics of invasive species remains poorly understood. This study used molecular methods to clarify the roles of commercial shipping and recreational boating in the invasion by the cosmopolitan tunicate, Botryllus schlosseri. We evaluated i) single vs. multiple introduction scenarios, ii) the relative importance of shipping and boating to primary introductions, iii) the interaction between these vectors for spread (i.e., the presence of...

Data from: Groups of related belugas (Delphinapterus leucas) travel together during their seasonal migrations in and around Hudson Bay

Gabriel J. Colbeck, Pierre Duchesne, Lianne D. Postma, Véronique Lesage, Mike O. Hammill & Julie Turgeon
Social structure involving long-term associations with relatives should facilitate the learning of complex behaviours such as long-distance migration. In and around Hudson Bay (Canada), three stocks of beluga whales form a panmictic unit, but have different migratory behaviours associated with different summering areas. We analysed genetic variation at 13 microsatellite loci among 1524 belugas, to test hypotheses about social structure in belugas. We found significant proportions of mother–offspring pairs throughout the migratory cycle, but average...

Data from: Mature male parr contribution to the effective size of an anadromous Atlantic salmon (Salmo salar) population over 30 years

Devon L. Johnstone, Michael F. O'Connell, Friso P. Palstra & Daniel E. Ruzzante
We describe temporal changes in the genetic composition of a small anadromous Atlantic salmon (Salmo salar) population from South Newfoundland, an area where salmon populations are considered threatened (COSEWIC 2010). We examined the genetic variability (13 microsatellite loci) in 869 out-migrating smolt and post-spawning kelt samples, collected from 1985 to 2011 for a total of 22 annual collections and a 30 year span of assigned cohorts. We estimated the annual effective number of breeders (Nb)...

Registration Year

  • 2012
    3

Resource Types

  • Dataset
    3

Affiliations

  • Fisheries and Oceans Canada
    3
  • University of Montreal
    1
  • Dalhousie University
    1
  • University of Windsor
    1
  • McGill University
    1
  • French National Centre for Scientific Research
    1
  • Maryville University
    1
  • Université Laval
    1