Document Detail

Effect of diel activity patterns and harvesting pressure on the diversity and biomass of sea cucumbers in Marovo Lagoon, Solomon Islands.
MedLine Citation:
PMID:  20349313     Owner:  NLM     Status:  MEDLINE    
A marked decline in the contribution by Marovo Lagoon to the annual total bêche-de-mer production of the Solomon Islands from 58% in 1989 to 17% in 2003 prompted investigation of their current biomass and diversity. We also assessed changes to critical ecological services and the prospects for population recovery following a fisheries closure. Day time and nocturnal transects revealed a mean abundance of 32.4 (SD = 5.3) low value species per ha (e.g. Holothuria atra, H. edulis, H. coluber and Thelenota anax) and 15.2 (SD = 2.7) high value species per ha (e.g. H. fuscogilva, Actinopyga lecanora, Stichopus hermanni and Thelenota ananas). Following a 17 month closure of the fishery (2005-2007), the abundance of bêche-de-mer was reported by local fisherman to have increased; however, no scientific studies were conducted that can substantiate this community held belief. The current study aimed to document the impact of re-opening the fishery in 2007 and documented a decline in high value species of 9% over a 5 month period following the opening of the fishery, while low value species continued to increase in abundance by 11%, over the same period based on nocturnal surveys. Continued observation of the recovery, post closure, and any subsequent harvest in Marovo will be required to properly understand population dynamics and provide a sustainable harvest plan for bêche-de-mer in the future.
Christine Buckius; Simon Albert; Ian Tibbetts; James Udy
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2010-03-28
Journal Detail:
Title:  Environmental management     Volume:  45     ISSN:  1432-1009     ISO Abbreviation:  Environ Manage     Publication Date:  2010 May 
Date Detail:
Created Date:  2010-05-17     Completed Date:  2010-08-20     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7703893     Medline TA:  Environ Manage     Country:  United States    
Other Details:
Languages:  eng     Pagination:  963-73     Citation Subset:  IM    
Centre for Water Studies, University of Queensland, St. Lucia, QLD, Australia.
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MeSH Terms
Aquaculture / economics,  methods*,  statistics & numerical data
Conservation of Natural Resources / economics,  methods*,  statistics & numerical data
Linear Models
Population Dynamics
Sea Cucumbers / growth & development*

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