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The HYPERMAQ dataset: bio-optical properties of moderately to extremely turbid waters
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Because of the large diversity of case 2 waters ranging from extremely absorbing to extremely scattering waters and the complexity of light transfer due to external terrestrial inputs, retrieving main biogeochemical parameters such as chlorophyll-a or suspended particulate matter concentration in these waters is still challenging. By providing optical and biogeochemical parameters for 180 sampling stations with turbidity and chlorophyll-a concentration ranging from 1 to 700 FNU and from 0.9 to 180 mg m−3 respectively, the HYPERMAQ dataset will contribute to a better description of marine optics in optically complex water bodies and can help the scientific community to develop algorithms. The HYPERMAQ dataset provides biogeochemical parameters (i.e. turbidity, pigment and chlorophyll-a concentration, suspended particulate matter), apparent optical properties (i.e. water reflectance from above water measurements) and inherent optical properties (i.e. absorption and attenuation coefficients) from six different study areas. These study areas include large estuaries (i.e. the Rio de la Plata in Argentina, the Yangtze estuary in China, and the Gironde estuary in France), inland (i.e. the Spuikom in Belgium and Chascomùs lake in Argentina), and coastal waters (Belgium). The dataset is available from Lavigne et al. (2022) at https://doi.org/10.1594/PANGAEA.944313.
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RBINS Staff Publications 2022
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Threshold indicators of primary production in the north-east Atlantic for assessing environmental disturbances using 21 years of satellite ocean colour
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Primary production (PP) is highly sensitive to changes in the ecosystem and can be used as an early warning indicator for disturbance in the marine environment. Historic indicators of good environmental status of the north-east (NE) Atlantic and north-west (NW) European Seas suggested that daily PP should not exceed 2–3 g C m−2 d−1 during phytoplankton blooms and that annual rates should be 300 g C m−2 yr−1. We use 21 years of Copernicus Marine Service (CMEMS) Ocean Colour data from September 1997 to December 2018 to assess areas in the NE Atlantic with similar peak, climatology, phenology and annual PP values. Daily and annual thresholds of the 90th percentile (P90) of PP are defined for these areas and PP values above these thresholds indicate disturbances, both natural and anthropogenic, in the marine environment. Two case studies are used to test the validity and accuracy of these thresholds. The first is the eruption of the volcano Eyjafjallajökull, which deposited large volumes of volcanic dust (and therefore iron) into the NE Atlantic during April and May 2010. A clear signature in both PP and chlorophyll-a (Chl a) was evident from 28th April to 6th May and from 18th to 27th May 2010, when PP exceeded the PP P90 threshold for the region, which was comparatively more sensitive than Chl a P90 as an indicator of this disturbance. The second case study was for the riverine input of total nitrogen and phosphorus, along the Wadden Sea coast in the North Sea. During years when total nitrogen and phosphorus were above the climatology maximum, there was a lag signature in both PP and Chl a when PP exceeded the PP P90 threshold defined for the study area which was slightly more sensitive than Chl a P90. This technique represents an accurate means of determining disturbances in the environment both in the coastal and offshore waters in the NE Atlantic using remotely sensed ocean colour data.
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RBINS Staff Publications 2022
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Oil extraction imperils Africa's Great Lakes
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RBINS Staff Publications 2016
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Partecosta milesi sp. nov., a new cryptic species of Terebridae from the SW Indian Ocean, with a revision of South African Gradaterebra species
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Partecosta milesi sp. nov. is described as new and compared to its sole morphological congener in the SW Indian Ocean. The South African members of the genus Gradaterebra are revised of which knowledge of the shell morphology remains only peripheral.
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RBINS Staff Publications 2024
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Terebra cloveri sp. nov., a new species of Terebridae from the W Philippine Sea
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Terebra cloveri sp. nov. is described from the southeastern South China Sea (West Philippines Sea - Philippines) and compared with its congeners with which it has historically been mistaken.
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RBINS Staff Publications 2024
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Hastula strigilata revisited: Part III. Description of two new species from Australia and the Hawaiian Islands (Gastropoda: Conoidea: Terebridae)
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Two morphospecies that remained undescribed in a previous study are described as new from Australia and the Hawaiian Islands, respectively and facilitated by the availability of recently acquired additional material.
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RBINS Staff Publications 2024
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Microrestes gen. nov., a new genus in the Oriental stick insect tribe Datamini Rehn & Rehn, 1939 with a new species and a new combination (Phasmida: Heteropterygidae: Dataminae)
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RBINS Staff Publications 2020
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Lasioglossum dorchini (Hymenoptera: Apoidea: Halictidae) a new species of bee from Israel
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This paper describes a new species, Lasioglossum dorchini, occuring in sand dunes in Israel. It is close to Lasioglossum leptocephalum. Its phylogenetic relationships with the other species of the virens/littorale group are analyzed
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RBINS Staff Publications 2020
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Plantes médicinales et régime alimentaire : les nonnes de Clairefontaine au XVIIIe siècle
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RBINS Staff Publications 2016
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Approche des pratiques agricoles durant le haut Moyen Âge en Hesbaye : étude de l’habitat rural de Lohincou/Villers-le-Bouillet (Province de Liège, Belgique)
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RBINS Staff Publications 2017
