Assessing the suitability of commercial fisheries data for local-scale marine spatial planning in South Africa

  • R Chalmers
  • A Oosthuizen
  • A Götz
  • A Paterson
  • WHH Sauer

Abstract

This study integrates fisheries logbook data with observer and vessel monitoring system (VMS) data in order to assess the accuracy of reported data and to develop high-resolution spatial data suitable for use in local-scale marine spatial planning analyses. Spatial assessments were conducted on five nearshore commercial fisheries to provide baseline information to inform spatial management and conservation planning in Algoa Bay, South Africa. Clear spatial patterns in the distribution of fishing effort were apparent for the linefishery, chokka-squid and inshore demersal trawl sectors. Observer and VMS data confirmed the broad spatial distribution of resource-use patterns of logbook data. Combining these data sources allowed higher-resolution spatial indices of fishing effort to be developed, which are suitable for systematic spatial planning on a local scale and can be used for future spatial management and conservation.

Keywords: chokka-squid, conservation planning, demersal trawl, linefish, logbooks, observer data, shark longline, small pelagic, vessel monitoring system

African Journal of Marine Science 2014, 36(4): 467–480

Author Biographies

R Chalmers
Department of Ichthyology and Fisheries Science, Rhodes University, Grahamstown, South Africa; South African Institute for Aquatic Biodiversity, Grahamstown, South Africa
A Oosthuizen
Park Planning and Development, South African National Parks, Nelson Mandela Metropolitan University (NMMU), Port Elizabeth, South Africa; Zoology Department, NMMU, Port Elizabeth, South Africa
A Götz
Department of Ichthyology and Fisheries Science, Rhodes University, Grahamstown, South Africa; Elwandle Node, South African Environmental Observation Network (SAEON), Grahamstown, South Africa; Zoology Department, NMMU, Port Elizabeth, South Africa
A Paterson
South African Institute for Aquatic Biodiversity, Grahamstown, South Africa
WHH Sauer
Department of Ichthyology and Fisheries Science, Rhodes University, Grahamstown, South Africa
Published
2015-04-01
Section
Articles

Journal Identifiers


eISSN: 1814-2338
print ISSN: 1814-232X