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Investigating the biological and socio-economic impacts of marine protected area network design in Europe ArchiMer
Metcalfe, Kristian.
Marine ecosystems are under increasing pressure from a diverse range of threats. Many national governments have responded to these threats by establishing marine protected area (MPA) networks. One such approach for designing MPA networks is systematic conservation planning, which is now considered the most effective system for designing protected area networks. However, the main exception to this trend is Europe, where the designation of MPAs is still largely based on expert opinion, despite growing awareness that these existing methods are not the most effective. Therefore, there is a need to demonstrate how systematic conservation planning can be used to inform MPA design in European waters and show how this approach can fit within existing marine...
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Ano: 2013 URL: http://archimer.ifremer.fr/doc/00136/24694/22744.pdf
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“Too Big To Ignore”: A feasibility analysis of detecting fishing events in Gabonese small-scale fisheries ArchiMer
Cardiec, Floriane; Bertrand, Sophie; Witt, Matthew J.; Metcalfe, Kristian; Godley, Brendan J.; Mcclellan, Catherine; Vilela, Raul; Parnell, Richard J.; Le Loch, Francois.
In many developing countries, small-scale fisheries provide employment and important food security for local populations. To support resource management, the description of the spatiotemporal extent of fisheries is necessary, but often poorly understood due to the diffuse nature of effort, operated from numerous small wooden vessels. Here, in Gabon, Central Africa, we applied Hidden Markov Models to detect fishing patterns in seven different fisheries (with different gears) from GPS data. Models were compared to information collected by on-board observers (7 trips) and, at a larger scale, to a visual interpretation method (99 trips). Models utilizing different sampling resolutions of GPS acquisition were also tested. Model prediction accuracy was high with...
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Ano: 2020 URL: https://archimer.ifremer.fr/doc/00633/74526/74363.pdf
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Evaluating conservation and fisheries management strategies by linking spatial prioritization software and ecosystem and fisheries modelling tools ArchiMer
Metcalfe, Kristian; Vaz, Sandrine; Engelhard, Georg H.; Villanueva, Ching-maria; Smith, Robert J.; Mackinson, Steven.
Well-designed marine protected area (MPA) networks can deliver a range of ecological, economic and social benefits, and so a great deal of research has focused on developing spatial conservation prioritization tools to help identify important areas. However, whilst these software tools are designed to identify MPA networks that both represent biodiversity and minimize impacts on stakeholders, they do not consider complex ecological processes. Thus, it is difficult to determine the impacts that proposed MPAs could have on marine ecosystem health, fisheries and fisheries sustainability. Using the eastern English Channel as a case study, this paper explores an approach to address these issues by identifying a series of MPA networks using the Marxan and Marxan...
Tipo: Text Palavras-chave: Ecopath with Ecosim; Ecospace; Marine spatial zoning; Marine trophic index; Marxan; Marxan with Zones; Systematic conservation planning.
Ano: 2015 URL: http://archimer.ifremer.fr/doc/00254/36538/37818.pdf
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Systematic conservation planning in the eastern English Channel: comparing the Marxan and Zonation decision-support tools ArchiMer
Delavenne, Juliette; Metcalfe, Kristian; Smith, Robert J.; Vaz, Sandrine; Martin, Corinne S.; Dupuis, Ludovic; Coppin, Franck; Carpentier, Andre.
The systematic conservation approach is now commonly used for the design of efficient marine protected area (MPA) networks. Identifying these priority areas often involves using specific conservation-planning software. Several of these software programmes have been developed in recent years, each of which differs in the underlying algorithms used. Here, we investigate whether the choice of software influences the location of priority areas by comparing outputs from Marxan and Zonation, two widely used conservation-planning, decision-support tools. Using biological and socio-economic data from the eastern English Channel, we compared their outputs and showed that the two software packages identified similar sets of priority areas, even though the relatively...
Tipo: Text Palavras-chave: Eastern English Channel; Marine conservation planning; Marxan; Spatial conservation prioritization; Zonation.
Ano: 2012 URL: http://archimer.ifremer.fr/doc/00054/16518/14088.pdf
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Impacts of data quality on the setting of conservation planning targets using the species-area relationship ArchiMer
Metcalfe, Kristian; Delavenne, Juliette; Garcia, Clement; Foveau, Aurelie; Dauvin, Jean-claude; Coggan, Roger; Vaz, Sandrine; Harrop, Stuart R.; Smith, Robert J..
Aim : The speciesarea relationship (SAR) is increasingly being used to set conservation targets for habitat types when designing protected area networks. This approach is transparent and scientifically defensible, but there has been little research on how it is affected by data quality and quantity. Location : English Channel. Methods : We used a macrobenthic dataset containing 1314 sampling points and assigned each point to its associated habitat type. We then used the SAR-based approach and tested whether this was influenced by changes in (i) the number of sampling points used to generate estimates of total species richness for each habitat type; (ii) the nonparametric estimator used to calculate species richness; and (iii) the level of habitat...
Tipo: Text Palavras-chave: English Channel; Habitat targets; Marine Conservation Zones; Marine protected areas; Species-area relationship; Systematic conservation planning.
Ano: 2013 URL: http://archimer.ifremer.fr/doc/00116/22745/20689.pdf
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