3 results match your criteria: "Royal Netherlands Institute for Sea Research (NIOZ) Den Burg[Affiliation]"
Ecol Evol
February 2015
IMARES Wageningen UR Den Burg, the Netherlands ; Department of Aquatic Ecology & Water Quality Management, Wageningen University Wageningen, the Netherlands.
Estimating the spatial position of organisms is essential to quantify interactions between the organism and the characteristics of its surroundings, for example, predator-prey interactions, habitat selection, and social associations. Because marine mammals spend most of their time under water and may appear at the surface only briefly, determining their exact geographic location can be challenging. Here, we developed a photogrammetric method to accurately estimate the spatial position of marine mammals or birds at the sea surface.
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June 2014
Department of Limnology and Oceanography, Center of Ecology, University of Vienna Vienna, Austria ; Department of Biological Oceanography, Royal Netherlands Institute for Sea Research (NIOZ) Den Burg, Netherlands.
We hypothesized that mixing zones of deep-water masses act as ecotones leading to alterations in microbial diversity and activity due to changes in the biogeochemical characteristics of these boundary systems. We determined the changes in prokaryotic and viral abundance and production in the Vema Fracture Zone (VFZ) of the subtropical North Atlantic Ocean, where North Atlantic Deep Water (NADW) and Antarctic Bottom Water (AABW) are funneled through this narrow canyon and therefore, are subjected to intense vertical mixing. Consequently, salinity, potential temperature, oxygen, PO4, SiO4, NO3 were altered in the NADW inside the VFZ as compared to the NADW outside of the VFZ.
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