Anthropogenic pressures and Bay of Biscay nurseries: identification, spatial variations and synthetize representation

Abstract : Estuarine and coastal ecosystems fulfill a variety of essential ecological functions, such as nursery grounds for juveniles of several marine species. However, those ecosystems are also subject to multiples pressures from human activities. Assessing the effect of anthropogenic pressure on marine communities requires to identify and quantify anthropogenic pressures. This study focus on five selected anthropogenic pressures applying on six nurseries in the Bay of Biscay. The aim is to identify and quantify those pressures to develop a global pressure indicator that will allow us to compare and identify area with high levels of anthropogenic disturbance. Pressures linked to fishing activity and chemical contamination were further investigated to apprehend their dynamic, ensure data quality and to overcome a lack of spatial resolution. Punctual data were also spatialized using a buffer type approach to assess their spatial distribution. A first global pressure indicator was built for each nursery. Average levels of each pressure were also studied in each nursery.
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Master Thesis
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Solène Mora. Anthropogenic pressures and Bay of Biscay nurseries: identification, spatial variations and synthetize representation. Life Sciences [q-bio]. 2018. ⟨dumas-01971586⟩

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