Coral Reefs

, Volume 26, Issue 1, pp 201–216

Reef fish and habitat relationships in a Caribbean seascape: the importance of reef context

Authors

    • Department of Fisheries and Aquatic SciencesUniversity of Florida
    • National Marine Protected Areas Center Science Institute, National Marine Fisheries Service
  • T. K. Frazer
    • Department of Fisheries and Aquatic SciencesUniversity of Florida
  • W. J. Lindberg
    • Department of Fisheries and Aquatic SciencesUniversity of Florida
  • J. Beets
    • Department of Marine SciencesUniversity of Hawaii
Report

DOI: 10.1007/s00338-006-0180-z

Cite this article as:
Grober-Dunsmore, R., Frazer, T.K., Lindberg, W.J. et al. Coral Reefs (2007) 26: 201. doi:10.1007/s00338-006-0180-z

Abstract

Marine protected area (MPA) effectiveness is contingent on understanding key ecological patterns and processes at appropriate spatial scales and may depend upon maintaining critical linkages among essential habitat patches to conserve reef-fish communities. Hypotheses were tested to investigate the importance of habitat linkages in the US Virgin Islands. As expected, reef context (the spatial pattern of surrounding habitat patches) was a strong predictor of reef fish assemblage structure. Specific relationships were functionally consistent with the ecology of the fishes of interest. For example, reefs with large amounts of seagrass nearby harbored the greatest numerical abundance of fishes, particularly mobile invertebrate feeders and the exploited fish families of Haemulidae (grunts) and Lutjanidae (snappers). Species richness for the entire fish community and within these fish groups was also strongly associated with reef context. Furthermore, reef fish mobility influenced how fishes related to reef context. Fish-habitat relationships were detected as far as 1 km from study reefs, suggesting that fish movements result in habitat encounter rates that may influence their patterns of distribution. Consequently, functional habitat connectivity of habitat patches appears important in structuring reef-fish assemblages, and suggests that landscape-scale metrics may provide insights useful to managers in the design of MPAs.

Keywords

Habitat linkages MPAs Species richness Reef fishes Landscape ecology Seagrass Connectivity

Copyright information

© Springer-Verlag 2006