Skip Navigation


ICES Journal of Marine Science: Journal du Conseil Advance Access originally published online on November 13, 2008
ICES Journal of Marine Science: Journal du Conseil 2009 66(1):82-89; doi:10.1093/icesjms/fsn181
This Article
Right arrow Full Text
Right arrow Full Text (PDF)
Right arrow All Versions of this Article:
66/1/82    most recent
fsn181v1
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Alert me to new issues of the journal
Right arrow Add to My Personal Archive
Right arrow Download to citation manager
Right arrowRequest Permissions
Google Scholar
Right arrow Articles by Fraser, H. M.
Right arrow Articles by Piet, G. J.
Right arrow Search for Related Content
PubMed
Right arrow Articles by Fraser, H. M.
Right arrow Articles by Piet, G. J.
Social Bookmarking
Add to CiteULike   Add to Connotea   Add to Del.icio.us  
What's this?

© 2008 International Council for the Exploration of the Sea. Published by Oxford Journals. All rights reserved. For Permissions, please email: journals.permissions@oxfordjournals.org

This article appears in the following ICES Journal of Marine Science issue: European Symposium on Marine Protected Areas as a Tool for Fisheries Management and Ecosystem Conservation [View the issue table of contents]

Selecting MPAs to conserve groundfish biodiversity: the consequences of failing to account for catchability in survey trawls

Helen M. Fraser1, S. P. R. Greenstreet1 and Gerjan J. Piet2

1 FRS Marine Laboratory, PO Box 101, 375 Victoria Road, Aberdeen AB11 9DB, Scotland, UK
2 Wageningen IMARES, Haringkade 1, 1976 CP IJmuiden, The Netherlands

Correspondence to H. M. Fraser: tel: +44 1224 295439; fax: +44 1224 295511; e-mail: h.fraser{at}marlab.ac.uk.

Fraser, H. M., Greenstreet, S. P. R., and Piet, G. J. 2009. Selecting MPAs to conserve groundfish biodiversity: the consequences of failing to account for catchability in survey trawls. – ICES Journal of Marine Science, 66: 82–89.

Fishing has affected North Sea groundfish species diversity. Defining Marine Protected Areas (MPAs) to address this will rely on groundfish surveys. Species-specific catch efficiencies vary between trawl gears, and apparent species diversity distributions are influenced by the type of gear used in each survey. It may be that no single survey depicts actual diversity distributions. Two MPA scenarios designed to protect groundfish species diversity are described, the first based on unadjusted International Bottom Trawl Survey data and the second based on the same data adjusted to take account of catchability. Spatial overlap between these scenarios is low. Assuming that the adjusted data best describe the actual species diversity distribution, the level of diversity safeguarded by MPAs, based on unadjusted data, is determined. A fishing effort redistribution model is used to estimate the increase in fishing activity that is likely to occur in MPAs that take catchability into account, if closed areas based solely on the unadjusted groundfish data were implemented. Our results highlight the need to take survey-gear catchability into account when designating MPAs to address fish-species diversity issues.

Keywords: benthic mortality, ecosystem approach to fishery management, GOV trawls, groundfish species diversity, International Bottom Trawl Surveys

Received 24 October 2007; accepted 3 April 2008; advance access publication 13 November 2008.


Add to CiteULike CiteULike   Add to Connotea Connotea   Add to Del.icio.us Del.icio.us    What's this?


This article has been cited by other articles:


Home page
 ICES J. Mar. Sci.Home page
S. P. R. Greenstreet, H. M. Fraser, and G. J. Piet
Using MPAs to address regional-scale ecological objectives in the North Sea: modelling the effects of fishing effort displacement
ICES J. Mar. Sci., January 1, 2009; 66(1): 90 - 100.
[Abstract] [Full Text] [PDF]


Disclaimer: Please note that abstracts for content published before 1996 were created through digital scanning and may therefore not exactly replicate the text of the original print issues. All efforts have been made to ensure accuracy, but the Publisher will not be held responsible for any remaining inaccuracies. If you require any further clarification, please contact our Customer Services Department.