Acoustic mapping of fish aggregation areas to improve fisheries management in Las Perlas Archipelago, Pacific Panama

Sarah J. M. Harper, C. Richard Bates, Hector M. Guzman, James M. Mair

Research output: Contribution to journalArticlepeer-review

9 Citations (Scopus)

Abstract

The purpose of this study was to investigate characterize and map areas of the seabed of Las Perlas Archipelago (LPA) Republic of Panama using swath-bathymetry acoustic sonar techniques and to assess these methods as tools for feeding information into management zoning policy In 2007 the LPA was granted conservation protection under national legislation However detailed management plans are still pending Seabed mapping plays a fundamental role in identifying areas which should be prioritized within the management framework Visual representation of habitat maps provides an effective medium for involving stakeholders in a co-management arena In this survey acoustically mapped areas of the seabed were ground-truthed using a combination of benthic grab samples drop-down video and diver observations The resulting mapped areas were then incorporated into a Geographic Information System (GIS) for further analysis The output was a physical characterization of the seabed at three locations selected for being areas of high rugosity (habitat complexity) and therefore their potential importance as valuable fish aggregation sites The rocky reefs and rhodolith beds identified in this survey represent particularly important fish aggregation and nursery habitats which should be considered priorities for protection under the management plans This survey demonstrated the use of acoustic techniques to spatially resolve topographic features and physical characteristics of the seabed illustrating their potential value as tools for fisheries management and marine reserve zoning in Las Perlas Archipelago and elsewhere (C) 2010 Elsevier Ltd All rights reserved

Original languageEnglish
Pages (from-to)615-623
Number of pages9
JournalOcean and Coastal Management
Volume53
Issue number10
DOIs
Publication statusPublished - Oct 2010

Keywords

  • MARINE PROTECTED AREAS
  • BENTHIC HABITAT
  • CORAL-REEFS
  • POPULATION ASSESSMENT
  • COMMUNITY STRUCTURE
  • SIDESCAN SONAR
  • CLASSIFICATION
  • ASSEMBLAGES
  • COMPLEXITY
  • ABUNDANCE

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