Journal of Coastal Conservation

, Volume 17, Issue 2, pp 225–237

Marine habitat mapping in support of Marine Protected Area management in a subarctic fjord: Gilbert Bay, Labrador, Canada

  • Alison Copeland
  • Evan Edinger
  • Rodolphe Devillers
  • Trevor Bell
  • Philippe LeBlanc
  • Joe Wroblewski
Article

DOI: 10.1007/s11852-011-0172-1

Cite this article as:
Copeland, A., Edinger, E., Devillers, R. et al. J Coast Conserv (2013) 17: 225. doi:10.1007/s11852-011-0172-1

Abstract

This paper presents an approach that allows production of benthic substrate and habitat maps in fjord environments. This approach is used to support the management of the Gilbert Bay Marine Protected Area (MPA) in southeastern Labrador, Atlantic Canada. Multibeam sonar-derived bathymetry, seabed slope, and acoustic reflectance (backscatter) were combined using supervised classification methods and GIS with ground-truthed benthic sampling in order to derive maps of the substrates and main benthic habitats. Six acoustically distinct substrate types were identified in the fjord, and three additional substrate types without a unique acoustic signature were recognized. Ordination by multidimensional scaling and analysis of similarity generalized these to four acoustically distinct habitat types. Greatest within-habitat (alpha) diversity was found in the coralline-algae encrusted gravel habitat. Greatest between-habitat (beta) diversity was found in the management Zones 1 and 2, which have the highest level of protection. The study confirmed that the zoning plan for the MPA, which was designed to protect spawning and juvenile fish habitat for a local genetically distinct population of Atlantic cod, afforded highest levels of protection to areas with highest habitat diversity.

Keywords

Marine habitat mappingAlpha-diversityBeta-diversityGISAtlantic codIceland scallopMarine protected areaMultibeamFjord

Copyright information

© Springer Science+Business Media B.V. 2011

Authors and Affiliations

  • Alison Copeland
    • 1
  • Evan Edinger
    • 2
    • 3
  • Rodolphe Devillers
    • 2
  • Trevor Bell
    • 2
  • Philippe LeBlanc
    • 2
  • Joe Wroblewski
    • 4
  1. 1.Department of Conservation ServicesGovernment of BermudaFlatts FLBXBermuda
  2. 2.Department of GeographyMemorial University of NewfoundlandSt. John’sCanada
  3. 3.Department of BiologyMemorial University of NewfoundlandSt. John’sCanada
  4. 4.Ocean Sciences CentreMemorial University of NewfoundlandSt. John’sCanada