Frédéric Vandeperre

Frédéric Vandeperre
University of the Azores | UAc · Institute of Marine Research - IMAR

PhD

About

51
Publications
29,565
Reads
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2,072
Citations
Citations since 2017
30 Research Items
1308 Citations
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2017201820192020202120222023050100150200250300
2017201820192020202120222023050100150200250300

Publications

Publications (51)
Article
Marine protected areas (MPAs) are often promoted as tools for biodiversity conservation as well as for fisheries management. Despite increasing evidence of their usefulness, questions remain regarding the optimal design of MPAs, in particular concerning their function as fisheries management tools, for which empirical studies are still lacking. Usi...
Article
Full-text available
Spatial structuring and segregation by sex and size is considered to be an intrinsic attribute of shark populations. These spatial patterns remain poorly understood, particularly for oceanic species such as blue shark (Prionace glauca), despite its importance for the management and conservation of this highly migratory species. This study presents...
Article
Full-text available
Knowledge on the distribution and habitat use of species is an important precondition for their appropriate management and conservation. This is particularly challenging for highly mobile marine predators such as blue shark that migrate between dynamic and transient oceanic habitats. In addition, blue shark populations have complex spatial structur...
Article
In a highly heterogeneous open ocean, swirling oceanographic structures such as eddies drive ocean productivity and aggregate many predators, including oceanic sea turtles. During early life, juvenile loggerhead turtles can spend more than a decade feeding on gelatinous zooplankton in the open ocean, but the way they use mesoscale eddies is still p...
Article
Full-text available
Effective ocean management and conservation of highly migratory species depends on resolving overlap between animal movements and distributions and fishing effort. Yet, this information is lacking at a global scale. Here we show, using a big-data approach combining satellite-tracked movements of pelagic sharks and global fishing fleets, that 24% of...
Article
Sea turtles are considered as bio-indicators for monitoring the efficiency of restoration measures to reduce marine litter impacts on health. However, the lack of extended and standardised empirical data has prevented the accurate analysis of the factors influencing litter ingestion and the relationships with individual health. Historic data collec...
Article
Full-text available
Environmental policies, including the European Marine Strategy Framework Directive (MSFD), generally rely on the measurement of indicators to assess the good environmental status (GES) and ensure the protection of marine ecosystems. However, depending on available scientific knowledge and monitoring programs in place, quantitative GES assessments a...
Article
Full-text available
The increased risk of local extinction becomes critical for sharks depending on the narrow and isolated coastal habitats of oceanic islands. This includes large pelagic oceanic sharks that use such habitats as nurseries, as previously hypothesized for the smooth hammerhead Sphyrna zygaena, the least known of cosmopolitan large hammerhead sharks. We...
Article
Full-text available
Blue shark (Prionace glauca) is amongst the most abundant shark species in international trade, however this highly migratory species has little effective management and the need for spatio-temporal strategies increases, possibly involving the most vulnerable stage or sex classes. We combined 265,595 blue shark observations (capture or satellite ta...
Article
Survivorship of early life stages is key for the well-being of sea turtle populations, yet studies on animals that distribute around oceanic areas are very challenging. So far, the information on green turtles (Chelonia mydas) that use the open NE Atlantic as feeding grounds is scarce. Strandings occurring in oceanic archipelagos can provide releva...
Article
Full-text available
106,107 ✉ replying to A. V. Harry & J. M. Braccini Nature https://doi.org/10.1038/s41586-021-03463-w (2021) Our global analysis 1 estimated the overlap and fishing exposure risk (FEI) using the space use of satellite-tracked sharks and longline fishing effort monitored by the automatic identification system (AIS). In the accompanying Comment, Harry...
Article
This article is a response to Murua et al.'s Matters Arising article in Nature, "Shark mortality cannot be assessed by fishery overlap alone," which arose from arising from N. Queiroz et al. Nature https://doi.org/10.1038/s41586-019-1444-4 (2019).
Article
Full-text available
Climate-driven expansions of ocean hypoxic zones are predicted to concentrate pelagic fish in oxygenated surface layers, but how expanding hypoxia and fisheries will interact to affect threatened pelagic sharks remains unknown. Here, analysis of satellite-tracked blue sharks and environmental modelling in the eastern tropical Atlantic oxygen minimu...
Article
Full-text available
Aim Understanding the environmental drivers of movement and habitat use of highly migratory marine species is crucial to implement appropriate management and conservation measures. However, this requires quantitative information on their spatial and temporal presence, which is limited in the high seas. Here, we aimed to gain insights of the essenti...
Article
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The increasing public perception that marine megafauna is under threat is an outstanding incentive to investigate their essential habitats (EMH), their responses to human and climate change pressures, and to better understand their largely unexplained behaviors and physiology. Yet, this poses serious challenges such as the elusiveness and remotenes...
Article
Full-text available
After hatching, juveniles of most sea turtle species undertake long migrations across ocean basins and remain in oceanic habitats for several years. Assessing population abundance and demographic parameters during this oceanic stage is challenging. Two long-recognized deficiencies in population assessment are (i) reliance on trends in numbers of ne...
Article
Full-text available
The following protocol is intended to respond to the requirements set by the European Union's Marine Strategy Framework Directives (MSFD) for the D10C3 Criteria reported in the Commission Decision (EU), related to the amount of litter ingested by marine animals. Standardized methodologies for extracting litter items ingested from dead sea turtles a...
Article
Full-text available
Avaiable at http://www.seaturtle.org/mtn/archives/mtn157/mtn157-5.shtml
Technical Report
Full-text available
This document, the MRR, includes the description of the criteria and species assessed, along with compilation of the results obtained during the implementation of the pilot monitoring programmes under the MSFD for marine birds, mammals and turtles in the three Macaronesian archipelagos (Azores, Madeira and Canary Islands) but also from other additi...
Article
In contrast to the vast majority of European maritime territories, the Azores is an isolated oceanic archipelago in the North East Atlantic characterised by small-scale hooks-and-lines fisheries. Yet, in spite of the low environmental impact of such fishing gears, there is no solid integrative information on the discard practices. This study bridge...
Article
The distribution and composition of macro litter floating around oceanic islands is poorly known, especially in the North Atlantic. Due to its isolated location at the fringe of the North Atlantic subtropical gyre, the Azores archipelago has recently been proposed as a potential retention zone for floating litter. To further investigate this assump...
Article
Full-text available
The loggerhead (Caretta caretta) is the most common sea turtle in the Azores. Since they do not nest in the area, a tagging program was started in the 1980’s to try to discover their origin. The result based on size distribution, suggested that they mainly are coming from beaches in SE United States. A collaboration between University of Florida an...
Article
Juvenile oceanic-stage sea turtles are particularly vulnerable to the increasing quantity of plastic coming into the oceans. In this study, we analysed the gastrointestinal tracts of 24 juvenile oceanic-stage loggerheads (Caretta caretta) collected off the North Atlantic subtropical gyre, in the Azores region, a key feeding ground for juvenile logg...
Presentation
Full-text available
The Azores is a group of islands located in the NE Atlantic that is largely dependent upon its marine resources. As for most oceanic islands, fishing has always been a key driver of the local Azorean economy. The Azorean fishing industry is a multi-segmented sector, targeting multiple species with a wide range of fishing gears and methods that can...
Poster
Full-text available
Despite its geographic isolation from large population centres, the Azores archipelago (north-eastern Atlantic) is not immune to thegrowing environmental threat of marine litter.Recent research developments suggest that many organisms are directly affected by this issue that should be addressed by consistent monitoring efforts. The goal of this stu...
Article
Cold-water corals and sponges aggregations are important features of the deep sea, recently classified as vulnerable marine ecosystems (VMEs). VMEs increase habitat complexity, believed to act as feeding, reproductive, nursery and refuge areas for a high number of invertebrates and fish species. In the Azores archipelago (NE Atlantic), VMEs are pre...
Article
Full-text available
Bottom trawl fishing threatens deep-sea ecosystems, modifying the seafloor morphology and its physical properties, with dramatic consequences on benthic communities. Therefore, the future of deep-sea fishing relies on alternative techniques that maintain the health of deep-sea ecosystems and tolerate appropriate human uses of the marine environment...
Conference Paper
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report available at http://wwz.ifremer.fr/lareunion/content/download/74360/961731/file/report_Cocaloca_A%C3%A7ores_10_2013.pdf
Article
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Review of the effects of protection in marine protected areas: current knowledge and gaps.— The effectiveness of marine protected areas (MPAs) and the conservation of marine environments must be based on reliable information on the quality of the marine environment that can be obtained in a reasonable timeframe. We reviewed studies that evaluated a...
Article
Full-text available
A general conceptual framework for the management of marine protected areas (MPAs) was developed. The driver-pressure-state-impacts-response (DPSIR) framework was used to determine the elements affecting MPAs. The developed evaluation framework helped to select an appropriate suite of indicators to support an ecosystem approach, an assment of the M...
Article
The success of MPAs in conserving fishing resources and protecting marine biodiversity relies strongly on how well they meet their planned (or implicit) management goals. From a review of empirical studies aiming at assessing the ecological effects of Mediterranean and Macaronesian MPAs, we conclude that establishing an MPA is successful for (i) in...
Article
Much has been written in recent years regarding the advantages of marine protected areas (MPAs) as conservation tools. The benefits to fisheries have commonly been cited as primary motives in favour of the establishment of MPAs. To date, a good deal has been theorised with regard to the benefit of MPAs to fisheries in their adjacent areas, but ther...
Article
Marine reserves are widely used throughout the world to prevent overfishing and conserve biodiversity, but uncertainties remain about their optimal design. The effects of marine reserves are heterogeneous. Despite theoretical findings, empirical studies have previously found no effect of size on the effectiveness of marine reserves in protecting co...
Article
Full-text available
A relationship between body size and time of spawning has often been described for both pelagic and non-pelagic fish species that migrate for the purpose of spawning. The present study investigates this relationship for capelin (Mallotus villosus), a pelagic smelt-like species that spawns on the beaches of Newfoundland. Simple linear regressions we...
Conference Paper
Full-text available
Historical data from marine ecosystems clearly suggest that overfishing has had, for thousands of years, a major impact on target species and have fundamentally altered marine ecosystems (Jackson et al., 2001). Recently, fisheries exploitation has spread from coastal areas to the open ocean and a general decline in fish biomass has been reported (B...
Article
Full-text available
Marine Protected Areas (MPAs) are critically important to the conservation of marine biodiversity and ecological processes and to achieving a sound basis for sustainable use and development of marine environments and resources. This is clearly reflected in the statement from World Summit on Sustainable Development (Johannesburg): "MPAs are the key...

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Project (1)
Archived project
In the marine environment, loggerhead sea turtles face several key threats at all life stages, including bycatch in pelagic and coastal fisheries, marine pollution/marine debris, and vessel strikes. While we need to learn more about loggerhead sea turtles, we already have evidence that they are important to the ecosystems upon which they depend, and thus protecting them is an important part of ecosystem based management. Bycatch in diverse fisheries is currently a major concern for the recovery of the Northwest Atlantic nesting population and is undermining conservation efforts. Fishing gears that pose the greatest concern at this time are longlines, trawls, and gillnets. Interactions and mortalities from these gears need to be reduced. In the Azores, since 90’s that bycatch of pelagic longline fleets was identified as one of the most significant anthropogenic threat and significant effort have been made to mitigate this problem, culminating in a 5 year longline experiments. Based on the work accomplished by similar longline projects an International Working Group for the Conservation of the Northwest Atlantic Loggerhead Nesting conducted meetings to draw attention to the current status of the species and identified actions that need to be undertaken, with the objective to mitigate the impact of longline fishing on sea turtles around the world.