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Article Reference Monitoring of Anthropogenic Sediment Plumes in the Clarion-Clipperton Zone, NE Equatorial Pacific Ocean
Located in Library / RBINS Staff Publications 2022 OA
Article Reference Monitoring of high biomass Phaeocystis globosa blooms in the Southern North Sea by in situ and future spaceborne hyperspectral radiometry
Phaeocystis globosa (P. globosa hereafter) is a phytoplankton species which commonly blooms at high biomass in April–May in the Southern North Sea and forms undesirable foam which accumulates on the beaches. Monitoring of this species is required by EU directives. Measurement of phytoplankton species composition has historically been made by pigment or microscopic analysis of water samples, which is spatially sparse and temporally infrequent e.g. weekly/monthly. In-water instruments such as flow cytometers can provide very high frequency data but at high acquisition and maintenance cost. Automated in situ above water radiometry has the potential to provide very high frequency data at single locations but requires very careful design of processing algorithms in turbid waters with high non-algal absorption. Spaceborne radiometry could provide both very good spatial coverage and moderate/high frequency of data, e.g. daily/weekly, but accurate determination of phytoplankton species composition is considerably more difficult in turbid waters than in open ocean waters. Prior studies based on a limited number of shipborne reflectance measurements suggested feasibility of P. globosa detection in turbid waters from hyperspectral radiometry. The availability of a new autonomous above water hyperspectral radiometer system has enabled further refinement and intensive testing of these techniques. From a time-series of 4356 water reflectance spectra measured near Ostend harbour in Belgian coastal waters from 2020/04/01 to 2020/08/18, two existing algorithms for P. globosa detection were successfully applied. Results show a high biomass P. globosa bloom occurring in late-April/early-May as found every year in water sample analyses for Belgian coastal waters. The high temporal resolution of the radiometric data allows to capture the evolution of the bloom at time scales sufficiently short (hourly and daily) compared to growth/decay and tidal processes. The challenges of extending the methods to future spaceborne instruments are also tested by simulating the impact of errors in sensor inter-band calibration, atmospheric correction and radiometric noise. Results show that because of their spectral coherence, atmospheric correction errors impact only slightly P. globosa detection whereas inaccuracy in inter-band calibration and radiometric noise are much more problematic as they affect each spectral band independently. Because radiometric noise should be reduced in the new generation of hyperspectral sensors and can always be reduced by spatial binning, the inter-band relative calibration uncertainty appears to be the main challenge for spaceborne mission design. Indeed, it was demonstrated that inter-band calibration error should be 0.25\% and ideally 0.1\% at top of the atmosphere highlighting the need for particular attention to inter-band calibration in sensor design and post processing treatments including vicarious calibration.
Located in Library / RBINS Staff Publications 2022
Techreport Reference Monitoring of the impact of the extraction of marine aggregates, in casu sand, in the zone of the Hinder Banks. Scientific Report 2 - January - December 2014. MOZ4-ZAGRI/I/VVL/201502/EN/SR01.
Located in Library / RBINS Staff Publications
Inproceedings Reference Monitoring potential disease hosts and vectors in Belgium: findings from two case projects
Located in Library / RBINS Staff Publications 2024
Inproceedings Reference Monitoring the trade in exotic animal products through DNA barcoding of passenger-imported meat
The INTERCEPT-project seeks to propose a robust framework for the long-term monitoring of (exotic) animal product imports into Belgium, highlighting the legal and illegal aspects of the trade and its implications for public and animal health. INTERCEPT aims to move towards a centralised database by integrating data from various federal services and agencies to gain a better overview of the trade and to promote the dissemination of crucial information among federal services, agencies, and stakeholders. The project also aims to introduce a secure and efficient sampling method for officials, along with a laboratory species identification pipeline by researchers, which will enable rapid DNA-based identification of illegally imported meat. During the project, meat intercepted from passengers luggage at Brussels Airport is sampled, identified using DNA barcoding and screened for pathogens. At present, 424 specimens have been sampled, of which 315 have been identified so far. About 40% were derived from non-domesticated species, including meat from 10 CITES-listed species. Among the seized wild meat samples, greater cane rat (Thryonomys swinderianus) and African brush-tailed porcupine (Atherurus africanus) were predominant. Six specimens (5%) were misidentified as domestic meat upon seizure, while DNA analyses revealed a wild species. Inversely, twelve specimens (6%) were misidentified as wild meat, while DNA analyses revealed a domestic species. By fostering collaboration among scientific institutions and federal agencies, this initiative aims to inform border control measures, and will support future research into diseases carried by both domestic and exotic meat, allowing better characterisation of the health risks associated with the illegal import of meat from third countries.
Located in Library / RBINS Staff Publications 2024
Inproceedings Reference Monitoring the wild meat trade through DNA barcoding and pathogen screening of passenger-imported meat
The INTERCEPT project maps the current situation of monitoring (exotic) animal product imports from third countries into Belgium, highlighting both the legal and illegal aspects of the trade and its implications for public and animal health. Recommendations are being drafted to move towards a more robust framework for long-term monitoring including a centralized database that integrates data from various federal services and agencies to gain a better overview of the trade and to promote the dissemination of crucial information among federal services, agencies, and stakeholders. The project also aims to introduce a secure and efficient sampling method for officials, along with a molecular species identification pipeline for researchers, which will enable rapid DNA-based identification of illegally imported meat. During this project, over 600 specimens have been sampled from intercepted meat from passenger’s luggage at Brussels Airport, of which more than 500 samples have so far been identified using DNA barcoding and screened for orthopoxviruses. Metagenomic DNA and RNA sequencing is ongoing for a selection of samples pooled per DNA-confirmed species, preparation method (raw vs. cooked), and, when possible, region of origin. By fostering collaboration among scientific institutions and federal agencies, this initiative aims to inform border control measures and will support future research into pathogens carried by both domestic and exotic meat, allowing better characterisation of the health risks associated with the illegal import of meat from third countries.
Located in Library / RBINS Staff Publications 2025
Inproceedings Reference Monkeypox viruses circulate in distantly related small mammal species in the Democratic Republic of the Congo
Located in Library / RBINS Staff Publications 2023
Inproceedings Reference Monkeypox viruses circulate in distantly-related small mammal species in the Democratic Republic of the Congo
Located in Library / RBINS Staff Publications 2023 OA
Article Reference Monogeneans from Catfishes in Lake Tanganyika. II: New Infection Site, New Record, and Additional Details on the Morphology of the Male Copulatory Organ of Gyrodactylus transvaalensis Prudhoe and Hussey, 1977
Located in Library / RBINS Staff Publications 2023 OA
Inproceedings Reference Mons / Obourg : évaluation archéologique à l’emplacement de la nouvelle écluse, au lieu-dit « Les Wartons ».
Located in Library / RBINS Staff Publications