Document Detail


Weak compliance undermines the success of no-take zones in a large government-controlled marine protected area.
MedLine Citation:
PMID:  23226237     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The effectiveness of marine protected areas depends largely on whether people comply with the rules. We quantified temporal changes in benthic composition, reef fish biomass, and fishing effort among marine park zones (including no-take areas) to assess levels of compliance following the 2005 rezoning of the government-controlled Karimunjawa National Park (KNP), Indonesia. Four years after the rezoning awareness of fishing regulations was high amongst local fishers, ranging from 79.5±7.9 (SE) % for spatial restrictions to 97.7±1.2% for bans on the use of poisons. Despite this high awareness and strong compliance with gear restrictions, compliance with spatial restrictions was weak. In the four years following the rezoning reef fish biomass declined across all zones within KNP, with >50% reduction within the no-take Core and Protection Zones. These declines were primarily driven by decreases in the biomass of groups targeted by local fishers; planktivores, herbivores, piscivores, and invertivores. These declines in fish biomass were not driven by changes in habitat quality; coral cover increased in all zones, possibly as a result of a shift in fishing gears from those which can damage reefs (i.e., nets) to those which cause little direct damage (i.e., handlines and spears). Direct observations of fishing activities in 2009 revealed there was limited variation in fishing effort between zones in which fishing was allowed or prohibited. The apparent willingness of the KNP communities to comply with gear restrictions, but not spatial restrictions is difficult to explain and highlights the complexities of the social and economic dynamics that influence the ecological success of marine protected areas. Clearly the increased and high awareness of fishery restrictions following the rezoning is a positive step. The challenge now is to understand and foster the conditions that may facilitate compliance with spatial restrictions within KNP and marine parks worldwide.
Authors:
Stuart J Campbell; Andrew S Hoey; Jeffrey Maynard; Tasrif Kartawijaya; Joshua Cinner; Nicholas A J Graham; Andrew H Baird
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2012-11-30
Journal Detail:
Title:  PloS one     Volume:  7     ISSN:  1932-6203     ISO Abbreviation:  PLoS ONE     Publication Date:  2012  
Date Detail:
Created Date:  2012-12-11     Completed Date:  2013-05-20     Revised Date:  2013-07-11    
Medline Journal Info:
Nlm Unique ID:  101285081     Medline TA:  PLoS One     Country:  United States    
Other Details:
Languages:  eng     Pagination:  e50074     Citation Subset:  IM    
Affiliation:
Marine Program, Wildlife Conservation Society, Bogor, West Java, Indonesia.
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MeSH Terms
Descriptor/Qualifier:
Animals
Anthozoa*
Biomass
Conservation of Natural Resources / legislation & jurisprudence*
Coral Reefs
Ecosystem
Fishes*
Government
Indonesia
Law Enforcement
Comments/Corrections

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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