Nolwenn Quillien

Nolwenn Quillien
France Energies Marines · Environmental & socio-economical impacts

PhD

About

33
Publications
7,129
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199
Citations
Additional affiliations
October 2012 - May 2016
Université de Bretagne Occidentale & Åbo Akademi University
Position
  • PhD student (joint degree between France & Finland)

Publications

Publications (33)
Article
Full-text available
Beach ecosystems extend from dune to offshore areas along most coasts, and provide essential services that are not provided by any other ecosystem. Indeed, sandy systems contain unique biodiversity and supply nursery and foraging areas for numerous commercially important marine species, such as flatfish. However, these systems are threatened by inc...
Article
Full-text available
Sandy beaches, forming the most widespread coastal habitat in the world, are threatened by the effects of increasing anthropogenic pressure in the context of global change, including the increased occurrence of green tides composed of free-living Ulva spp. Sandy beaches are also highly dynamic ecosystems that support numerous essential ecological f...
Article
Full-text available
Spurilla neapolitana is a gastropod of the family Aeolidiidae living in southern European waters, from the Mediterranean to the Bay of Biscay, where it was regularly recorded from Arcachon Bay and more sporadically along southern Brittany coasts. The recent discovery of the species at the western end of Brittany (Iroise Sea) extends its distributio...
Article
Full-text available
Measurements of an upward-looking Nortek Signature 1000 kHz five-beam acoustic Doppler current profiler are used to evaluate the mid-depth kinetic power density of the flow, energy-spectra of the velocity, turbulence intensity and an approximate turbulent kinetic energy budget at an estuarine tidal-stream energy site. The kinetic power density is 7...
Article
Full-text available
Ecologists working with stable isotopes have to deal with complex datasets includ-ingtemporalandspatialreplication,which makes the analysis and the representa-tion of patterns of change challenging, especially at high resolution. Due to the lackof a commonly accepted conceptual framework in stable isotope ecology, the analy-sis and the graphical re...
Article
A traditional taxonomic approach coupled to a biological traits analysis was conducted in order to provide a new insight into macrobenthic communities associated with subtidal sandy environments. Results suggest that the macro-scale distribution of benthic communities is mainly driven by the migration rate of bedforms (sandbank, barchan dune and tr...
Preprint
Prior the deployment of the RE50 Nova Innovation tidal turbine in the Étel estuary, France, an investigation of the flow dynamics and turbulence has been carrying out through the use of an upward-looking Nortek Signature 1000 kHz five-beam acoustic Doppler current profiler (ADCP). The deployment took place near the autumn equinox for a 27-day perio...
Article
Full-text available
Succession in epibenthic communities on artificial reefs associated with marine renewable energy facilities within a tide-swept environment. Although colonization of artificial structures by epibenthic communities is well-documented overall, our understanding of colonization processes is largely limited to low-energy environments. In this study, we...
Technical Report
Full-text available
The SPECIES project has significantly improved the available knowledge base concerning the potential impacts associated with subsea power cables in offshore renewable energy projects. Tools for measuring electromagnetic fields were specially developed and tested during this project. In situ studies of the response of benthic communities to the pres...
Article
Opportunistic green macroalgae blooms increasingly affect coastal areas worldwide. Understanding their impacts on organisms that use this zone, such as juvenile flatfish, is critical. By combining stable isotope data, digestive tract contents and community analyses of flatfish and their potential prey (benthic macroinvertebrates) from two North-Eas...
Article
Open sandy beaches support key ecological functions and a distinctive biodiversity, but are threatened by an increasing anthropogenic pressure. Among these threats is the occurrence of green tides of Ulva spp., expression of the eutrophication phenomenon. Our study aimed at determining the impact of green macroalgal accumulations on benthic meiofau...
Article
This data article provides indicators of Ecosystem Service (ES) supply for coral reefs, sandy beaches and coastal lagoons in different ecological states regarding eutrophication. 14 ES are considered: food through fisheries; material; molecules; coastal protection; nutrient regulation; pathogen regulation; climate regulation; support of recreationa...
Article
Full-text available
This data article provides indicators of Ecosystem Service (ES) supply for coral reefs, sandy beaches and coastal lagoons in different ecological states regarding eutrophication. 14 ES are considered: food through fisheries; material; molecules; coastal protection; nutrient regulation; pathogen regulation; climate regulation; support of recreationa...
Presentation
Full-text available
Marine growth (or macro-biofouling) is well known to colonized the immersed part of marine structures after only few weeks. Among various effects, behavior of Floating Offshore Wind Turbines is mostly affected by the added mass, the increase in mooring and umbilicals diameter and the change in hydrodynamic forces. Surface roughness is highlighted t...
Article
Full-text available
One of the current major scientific challenges to sustain social-ecological systems is to improve our understanding of the spatial and temporal dynamics of the relationships between biodiversity, ecosystem functioning and ecosystem services. Here, we analyze the bundles of ecosystem services supplied by three coastal ecosystems (coastal lagoons, co...
Poster
Full-text available
Submarine power cables (SPC) are increasingly used worldwide for numerous applications: to connect autonomous grids, supply power to islands, marine platforms or subsea observatories, and to convey power generated by marine renewable energy installations. The electrical current passing through SPC generates magnetic fields (MF, measured in μT), whi...
Presentation
Full-text available
Presentation on the effects of Ulva blooms on the trophic ecology of juvenile sand soles using stable isotopes (C and N) and gut content analysis. We used data from before the green tides, during the peak of the green tide and after the peak green tide to understand the behavioral responses of juvenile sand sole to this temporary disturbance. We sa...
Presentation
Full-text available
Biofouling is an important environmental parameter to integrate in the early stage of an MRE project developpement. This may impact the engineering design as well as feed the acceptance studies which may lock the technologies deployement. Protocoles of these double aspect doesn't exist up to know.
Thesis
Full-text available
Highly dynamic systems, often considered as resilient systems, are characterised by abiotic and biotic processes under continuous and strong changes in space and time. Because of this variability, the detection of overlapping anthropogenic stress is challenging. Coastal areas harbour dynamic ecosystems in the for of open sandy beaches, which cover...
Article
Sandy beaches, forming the most widespread coastal habitat in the world, are threatened by the effects of increasing anthropogenic pressure in the context of global change, including the increased occurrence of green tides composed of free-living Ulva spp. Sandy beaches are also highly dynamic ecosystems that support numerous essential ecological f...
Article
Full-text available
In Brittany, the eutrophication of coastal river waters leads to the development of harmful green macroalgal blooms that affect numerous sandy beaches. For the monitoring of coastal ecosystems the most widely used benthic ecological indicators are derived from macrofauna, seagrass populations parameters and epiphytes communities. Meiofauna has been...
Article
Full-text available
Sandy beaches, forming the most widespread coastal habitat in the world, are threatened by the effects of increasing anthropogenic pressure in the context of global change, including the increased occurrence of green tides composed of free-living Ulva spp. Sandy beaches are also highly dynamic ecosystems that support numerous essential ecological f...
Article
Full-text available
The polychaete Onuphis eremita was recently discovered on the Anse de Dinan sandy beach (Crozon, Western Brittany), pushing its limit of distribution northward of several tens of kilometers compared to its last record in the area. This paper thus presents the evolution of the northern limit of distribution of O. eremita on the French coast since th...
Article
Eutrophication impacts of green macroalgal blooms on the benthic food webs and on the flatfish nursery function of North Eastern Atlantic sandy beaches

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Projects

Projects (4)
Project
• To understand the sedimentary and ecosystem dynamics of underwater dunes. • To provide technology developers and industrialists in the ORE sector with complementary knowledge and approaches to work in environments with hydraulic dunes.
Project
Focus on sandy beach nurseries for flatfish (sand sole, plaice and turbot) First part on the effects of green tides on juvenile flatfish trophic ecology -> combination of stable isotopes (carbon and nitrogen) and digestive track contents. Second part on the effects of green tides on the quality of coastal nurseries by considering - the macrobenthic secondary production (total and accessible to flatfish) - the flatfish density (sand sole, turbot, plaice - the flatfish body condition (relative condition index)
Project
Develop a socio-ecosystem approach to the impacts of floating wind farms: - To gain a better knowledge of the effects of floating wind farms on socio-ecosystems - Develop digital tools to characterize and analyze interactions between all actors and the environment. - Develop tools to support the integration of floating wind farms in their natural and socio-economic environment