Estimating uncertainty in deriving spatial distribution of blue ling landings from vessel monitoring system (VMS) data and implications for delineating marine protection boundaries to the northwest of the British Isles

Posen, P., Large, P. and Lee, J. (2012) Estimating uncertainty in deriving spatial distribution of blue ling landings from vessel monitoring system (VMS) data and implications for delineating marine protection boundaries to the northwest of the British Isles. In: 10th International Symposium on Spatial Accuracy Assessment in Natural Resources and Environmental Sciences, Accuracy 2012, 2012-07-10 - 2012-07-13.

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Abstract

Recent years have seen a rapid increase in the development of restricted fishing areas to protect vulnerable marine ecosystems and species-specific fish stocks. The current study focuses on one such area to the northwest of the British Isles where, in 2009, the European Commission (EC) introduced protection areas for spawning aggregations of southern blue ling (Molva dypterygia) in European Union (EU) waters. High-resolution data derived from logbook entries and satellite-based vessel monitoring systems (VMS) are used to estimate spatial and temporal patterns of blue ling fishing activity. However, certain assumptions must be made regarding whether vessels are engaging in fishing activity at any individual monitoring point, leading to uncertainty in estimating activity in the vicinity of protection area boundaries. The study aims to apportion blue ling landings reported by ICES rectangles of 1° latitude × 0.5° longitude inside and outside the protection areas and the data are assessed at different spatial and temporal scales. From the methods evaluated, initial results of the impact of EU conservation measures on fishing activity during the spawning period are inconclusive.

Item Type:	Conference or Workshop Item (Paper)
Uncontrolled Keywords:	blue ling,gis,marine protection areas,spatial management,environmental science(all) ,/dk/atira/pure/subjectarea/asjc/2300
Faculty \ School:	Faculty of Science > School of Environmental Sciences
UEA Research Groups:	Faculty of Science > Research Centres > Centre for Social and Economic Research on the Global Environment (CSERGE)
Related URLs:	http://www.scopus.com/inward/record.url?...
Depositing User:	LivePure Connector
Date Deposited:	03 Dec 2025 12:30
Last Modified:	03 Dec 2025 12:30
URI:	https://ueaeprints.uea.ac.uk/id/eprint/101223
DOI:

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