Hostname: page-component-5d84bcc8dc-zk7h6 Total loading time: 0 Render date: 2026-08-17T22:36:49.331Z Has data issue: false hasContentIssue false

Change detection in a Marine Protected Area (MPA) over three decades on Bonaire, Dutch Caribbean

Published online by Cambridge University Press:  24 August 2018

N. J. Relles*
Affiliation:
Virginia Institute of Marine Science, College of William & Mary, P.O. Box 1346, Gloucester Point, VA 23062, USA
M. R. Patterson
Affiliation:
Marine Science Center, Northeastern University, 430 Nahant Road, Nahant, MA 01908, USA
D. O. B. Jones
Affiliation:
National Oceanography Centre, University of Southampton Waterfront Campus, European Way, Southampton SO14 3ZH, UK
*
Author for correspondence: N. J. Relles, Onondaga Community College, Biological Sciences Department, Syracuse, NY 13215, USA. E-mail: n.j.relles@sunyocc.edu

Abstract

The island of Bonaire is a long-established Marine Protected Area (MPA), the reefs of which were extensively mapped in the early 1980s. Satellite remote sensing techniques were used to construct reef maps for 2008–2009. Metrics describing the spatial structure of coral habitat at the landscape scale – including coral cover, fragmentation, patch size and connectivity between patches – were calculated and compared between these two time periods. Changes were evaluated in and out of the MPAs and in areas exposed and sheltered from storm damage. Overall, coral cover has declined during the past three decades, being replaced by sand, but the decline has not been as drastic as elsewhere in the Caribbean. Fragmentation of the reef habitat has occurred, resulting in smaller and more disparate patches, but these changes were not associated with exposure along the coastline. However, total coral cover was maintained in sheltered areas, whereas it declined along exposed shorelines. Human protection of reefs by marine reserves had variable effects on coral cover and fragmentation. One of two no-diving marine reserves showed increases in coral cover accompanied by decreases in the number of patches of coral and an increase in the size of individual patches over the time period, while the second reserve exhibited the opposite trend. Advances in satellite remote sensing techniques allow for a more rapid assessment of changes in reefs at the landscape level, which can be used to identify spatial changes in the reef environment, including areas of coral decline.

Information

Type
Research Article
Copyright
Copyright © Marine Biological Association of the United Kingdom 2018 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

Article purchase

Temporarily unavailable