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Integrating field data to parameterize a larval transport model of sole and improve knowledge on connectivity in the North Sea
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RBINS Staff Publications 2016
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Integrating field data to parametrize a larval transport model of sole and improve knowledge on recruitment and connectivity
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Located in
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RBINS Staff Publications
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Integrating field data to parameterize a larval transport model of sole and improve knowledge on recruitment in the North Sea.
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Inter-annual recruitment variability of sole (Solea solea) in the North Sea is high. Among many fish taxa, the early life stages are critical in determining recruitment. With a Lagrangian larval transport model, coupling a physical model with an Individual-Based Model (IBM), it has been shown that hydrodynamics explains part of this variability in sole (Lacroix et al. 2013). IBMs require a good knowledge of the biological processes governing larval dispersal. However, it is difficult to obtain observations of life history traits; their estimates may strongly influence larval connectivity / retention and successful migration as predicted by the model. Various assumptions about these traits can be tested by comparing simulation results with field data. Several datasets, from the literature and from a 2-year-long monthly sampling at 13 stations in the southern North Sea, will be used to identify the most plausible model parameterisation. It represents a first step towards the calibration and improvement of a larval dispersal model of sole in the North Sea and the development of a tool for fisheries management.
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RBINS Staff Publications
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Integrating genetic connectivity and local adaptation in effective Marine Protected Area design: a case study on Southern Ocean Trematomus fishes.
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Polar ecosystems support a distinctive, cold-adapted biodiversity that faces significant threats from rapid environmental changes and escalating human impacts. To effectively manage and conserve these living resources, multi-scale data on connectivity and adaptation are essential. Marine protected areas (MPAs) are most effective when designed as interconnected networks that account for both functional diversity and connectivity within and among species. In this study, 607 individuals from ten Trematomus species were analyzed through ddRAD sequencing, yielding thousands of genomic markers to examine patterns of divergence and connectivity on the Southern Ocean shelf, both within and between species. Genomic SNPs showing evidence of selection, identified as "outlier loci," were further analyzed to explore potential local adaptations to varying environmental conditions. Population structure analyses of four species — T. loennbergii, T. eulepidotus, T. scotti, and T. newnesi — indicate extensive dispersal across the Weddell Sea and along the West Antarctic coast, likely facilitated by the Weddell Sea Gyre and the Antarctic Coastal Current. A genetic discontinuity was detected near the Filchner Trough in several species, likely due to the strong outflow from the Filchner-Ronne ice shelf, which may isolate the trough region from the broader Weddell Sea habitat. Additionally, evidence of previously unrecognized cryptic diversity was observed in T. eulepidotus and T. loennbergii. These findings contribute to our understanding of diversity, connectivity, and adaptation on the Southern Ocean shelf, a critical foundation for conservation amid unprecedented global change.
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RBINS Staff Publications 2024
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Integrating micromorphology and archaeobotany to unravel the function of an archaeological structure. The example of the site of Petite Rue de Bouchers (Brussels, Belgium)
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RBINS Staff Publications
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Integration of corrective parameters to merge multiple-sourced online macroseismic data
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RBINS Staff Publications 2018
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Integration of genetic connectivity and local adaptation in the design of marine protected area in the Southern Ocean: a case study opf Trematomus fishes
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Polar ecosystems harbour a unique cold-adapted biodiversity that is threatened by rapid environmental change and increasing anthropogenic impact. In this context, multi-scale data on connectivity and adaptation are essential for supporting exploitation and conservation management of living resources and ecosystems. Notably, marine protected areas are most effective if implemented as a network that considers functional diversity and connectivity within and between species. In the present study, 607 individuals of ten Trematomus species were sequenced using ddRAD sequencing techniques. Thousands of genomic variants were used to investigate inter- and intraspecific patterns of divergence and connectivity across the Southern Ocean shelf. Moreover, genomic SNPs that showed evidence of selection (“outlier loci”) were used to explore potential local adaptation of the populations to different environmental conditions. Population structure analyses of four different species (T. loennbergii, T. eulepidotus, T. scotti and T. newnesi) suggest long- range dispersal across the Weddell Sea and even along the entire West Antarctic coast that might be facilitated by the Weddell Sea Gyre and Antarctic Coastal current. A genetic break at the level of the Filchner Trough was observed in several species. The strong outflow from the Filchner-Ronne ice shelf may separate the trough area from the remaining Weddell Sea habitat. Finally, results suggest that previously undetected cryptic diversity may be present within T. eulepidotus and T. loennbergii. Altogether, the present results contribute to the assessment of diversity, connectivity and adaptation on the Southern Ocean shelf, which is imperative in view of unprecedented global change.
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RBINS Staff Publications 2024
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Integration, communities & exclusion in Byzantine times through burials from Hierapolis of Phrygia (Türkiye)
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During the last decade, several research programs have shed light on the funerary spaces from the Byzantine city of Hierapolis, located in the ancient province of Phrygia, southwest Turkey. The diversity of the investigated burials has been studied using interdisciplinary approaches, including bioarchaeology; this recent research has enabled us to compensate for the incomplete data from former excavations and address new issues. Topography, architectural types, reconstruction of perishable arrangements, grave management, and biological identity of the deceased have been jointly analyzed to identify four kinds of burial spaces in use during the 11th and 12th centuries CE. Our results indicate that each of these spaces was reserved for a specific social category: An enclosed cemetery surrounding a small church was the burial place of the general Christian population in Hierapolis, while much prestigious sites, such as the urban Cathedral and the St. Philip sanctuary, accommodated tombs of clergy and privileged inhabitants. By contrast, non-local Christians, namely identified pilgrims from western Europe, did not have access to burial in these community spaces, but were interred in reopened Roman chamber tombs situated not far from the aforementioned St Philip sanctuary. Finally our results indicate that people were excluded from the community in Hierapolis in death in the cases of tombs situated outside the cemetery walls, as well as three inhumations discovered in a waste and dumping ground. Together, our findings outline a Byzantine funerary landscape much more diversified than usually described and demonstrate community, social stratification, and separation of social groups within a medieval city.
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RBINS Staff Publications 2022
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Integrative analyses of valve outlines and molecular DNA sequences in Eucypris virens (Crustacea, Ostracoda)
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RBINS Staff Publications
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Integrative analyses of valve outlines and molecular DNA sequences in Eucypris virens (Crustacea, Ostracoda)
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Located in
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RBINS Staff Publications
