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Unpublished Reference Updated concept for a comprehensive BA MARPOL Annex VI project outline related to strategical-operational and technical aspects of MAVI monitoring activities. Document presented by the co-convenors of the SOWG (France and The Netherlands) and the TWG (Bel
Located in Library / RBINS Staff Publications 2023
Article Reference Updated status of Saitis barbipes (Simon, 1868) (Araneae, Salticidae) in Belgium
Located in Library / RBINS Staff Publications 2022
Article Reference Urban rats as carriers of invasive Salmonella Typhimurium sequence type 313, Kisangani, Democratic Republic of Congo
Located in Library / RBINS Staff Publications 2022
Article Reference Use of Soil and Litter Ants (Hymenoptera: Formicidae) as Biological Indicators of Soil Quality Under Different Land Uses in Southern Rwanda
The use of soil and litter arthropods as biological indicators is a way to assess environmental changes, where ant species in particular may serve as important indicators of soil quality. This study aimed at relating the abundance of soil and litter ant species to soil parameters under different tree species, both native and exotic, and varieties of coffee and banana plantations. Variations were found in soil physicochemical parameters. A total of 30 species belonging to 14 genera, and four subfamilies, the Formicinae, Dorylinae, Myrmicinae, and Ponerinae were identified. Higher abundance was found in coffee plantations compared to banana plantations, exotic and native tree species. Species of Camponotus cinctellus and Odontomachus troglodytes occurred in all land uses which is a sign of tolerance to a wide range of soil properties. In addition, these species, together with Myrmicaria SP02, Phrynoponera gabonensis, Camponotus SP06, Myrmicaria opaciventris, Pheidole SP03, Tetramorium simillimum, Pheidole SP01, and Tetramorium laevithorax were not strongly correlated with soil physicochemical parameters. Species of Pheidole SP02 and Camponotus SP05 were restricted to specific soil physicochemical properties, while species of Tetramorium zonacaciae and Bothroponera talpa discriminated between native tree species, coffee plantations, soil organic carbon, sandy soil texture, and aggregate stability. We concluded that these ant species can differently indicate the soil quality depending on the land use. We recommended further studies in order to generalize these findings
Located in Library / RBINS Staff Publications 2018
Inproceedings Reference Using ancient DNA to identify Bos primigenius in ancient cattle remains from Belgium
Aurochs (Bos primigenius) are the wild ancestors of the domesticated taurine cattle (Bos taurus). During the Holocene, populations of aurochs gradually declined until their extinction at the turn of the 17th century. DNA data suggest that domestic cattle in Europe descended from Near East aurochs that were domesticated and brought to Europe by the first farmers during the Neolithic period. Hybridization occurred more recently in Europe between domestic cattle and local wild aurochs. Most aurochs can be distinguished from domestic cattle osteometrically, but large-sized domestic cattle may be misidentified as aurochs. Based on mitochondrial DNA, most European aurochs differ from domestic cattle (haplogroup “P” versus “T”). With the aim to provide new data on the former distribution of aurochs in Europe, we used mitochondrial DNA to identify large bovid bones attributed to aurochs and dating from Epipaleolithic to medieval times. DNA was extracted from the bones of 11 specimens from Belgium in an ancient DNA lab. Shotgun DNA sequencing provided raw reads comprising 0.02-10% of endogenous DNA. For three samples, reads covered 74-98% of the bovid mitochondrial genome and enabled the identification of one aurochs from the Bronze Age (haplogroup “P”) and two cows from Roman and medieval times (haplogroup “T”). Among the other samples (covering 2-18% of the mitogenome), three Roman specimens could be assigned to the haplogroup “T” based on a few diagnostic positions. This study provides the first mitogenomic data for a Belgian aurochs and contributes to the identification of exceptionally large Roman bovid remains.
Located in Library / RBINS Staff Publications 2023
Article Reference Using Hyperspectral Remote Sensing to Monitor Water Quality in Drinking Water Reservoirs
At the Blankaart Water Production Center, a reservoir containing 3 million m3 of raw surface water acts as a first biologic treatment step before further processing to drinking water. Over the past decade, severe algal blooms have occurred in the reservoir, hampering the water production. Therefore, strategies (e.g., the injection of algaecide) have been looked at to prevent these from happening or try to control them. In this context, the HYperspectral Pointable System for Terrestrial and Aquatic Radiometry (HYPSTAR), installed since early 2021, helps in monitoring the effectiveness of these strategies. Indeed, the HYPSTAR provides, at a very high temporal resolution, bio-optical parameters related to the water quality, i.e., Chlorophyll-a (Chla) concentrations and suspended particulate matter (SPM). The present paper shows how the raw in situ hyperspectral data (a total of 8116 spectra recorded between 2021-02-03 and 2022-08-03, of which 2988 spectra passed the quality check) are processed to find the water-leaving reflectance and how SPM and Chla are derived from it. Based on a limited number of validation data, we also discuss the potential of retrieving phycocyanin (an accessory pigment unique to freshwater cyanobacteria). The results show the benefits of the high temporal resolution of the HYPSTAR to provide near real-time water quality indicators. The study confirms that, in conjunction with a few water sampling data used for validation, the HYPSTAR can be used as a quick and cost-effective method to detect and monitor phytoplankton blooms.
Located in Library / RBINS Staff Publications 2022
Article Reference Using MALDI-TOF mass spectrometry to identify ticks collected on domestic and wild animals from the Democratic Republic of the Congo
Located in Library / RBINS Staff Publications 2021
Article Reference Using Sea cucumbers to illustrate the basics of zoological nomenclature
Located in Library / RBINS Staff Publications
Article Reference Using self–organizing maps and machine learning models to assess mollusc community structure in relation to physicochemical variables in a West Africa river–estuary system
Located in Library / RBINS Staff Publications 2021
Article Reference Validating a biophysical dispersal model with the early life-history traits of common sole (Solea solea L.)
Larval dispersal and juvenile survival are crucial in determining variation in recruitment, stock size and adult distribution of commercially important fish. This study investigates the dispersal of early-life stages of common sole (Solea solea L.) in the southern North Sea, both empirically and through modeling. Age at different life-history events of juvenile flatfish sampled along the coasts of Belgium, the Netherlands and the United Kingdom in 2013, 2014 and 2016, was determined through the counting of daily growth rings in the otoliths. Juveniles captured between August and October were estimated to be on average 140 days old with an average pelagic larval duration of 34 days. The hatching period was estimated between early April and mid-May followed by arrival and settlement in the nurseries between May and mid-June. Growth rates were higher off the Belgian coast than in the other nursery areas, especially in 2013, possibly due to a post-settlement differentiation. Empirical pelagic larval duration and settlement distributions were compared with the LARVAE&CO larval dispersal model, which combines local hydrodynamics in the North Sea with sole larval behavior. Yearly predicted and observed settlement matched partially, but the model estimated a longer pelagic phase. The observations fitted even better with the modelled average (1995–2015) distribution curves. Aberrant results for the small juvenile sole sampled along the UK coast in March 2016, led to the hypothesis of a winter disruption in the deposition of daily growth rings, potentially related to starvation and lower food availability. The similarities between measured and modelled distribution curves cross-validated both types of estimations and accredited daily ageing of juveniles as a useful method to calibrate biophysical models and to understand early-life history of fish, both important tools in support of efficient fisheries management strategies.
Located in Library / RBINS Staff Publications 2020