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The need for fine-scale assessment of trawl fishing effort to inform on an ecosystem approach to fisheries: Exploring three data sources in Mediterranean trawling grounds

AuthorsDemestre, Montserrat ; Muntadas, Alba ; de Juan, Silvia ; Mitilineou, Chryssi; Sartor, Paolo; Mas, J.; Kavadas, Stefanos; Martín, Javier
KeywordsSmall-scale effortestimation
Sustainable resources
Good environmentalstatus
Issue DateDec-2015
CitationMarine Policy 62: 134-143 (2015)
AbstractAiming to estimate fishing effort at a small-scale that can be linked to benthic ecosystem disturbance (including target and non-target communities and habitats), three approaches were compared in 4 Mediterranean areas subjected to different trawl effort: i) information from the fishery (fishermen interviews and daily sales¿ records), ii) Vessel Monitoring System (VMS) data and iii) Side-Scan Sonar (SSS) records. Fishery data proved a useful baseline to characterise effort in the fishing grounds, VMS described in detail the dynamics of the fleet and SSS provided evidence of small-scale trawl activity. This paper examines the strengths and weaknesses of these 3 methods regarding their feasibility to assess the effort distribution at the smallest possible scale, but with a broad application. The findings highlight the need for accurate fishing effort estimations to evaluate trawling disturbance on ecosystems to ensure both healthy benthic ecosystems and sustainable exploitation of target species populations
Description10 pages, 8 figures, 2 tables
Publisher version (URL)http://dx.doi.org/10.1016/j.marpol.2015.09.012
Identifiersissn: 0308-597X
Appears in Collections:(ICM) Artículos
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