Marcos Carvajalino Fernández

Institute of Marine Research in Norway | IMR · Research Group of Oceanography

A coupled numerical model for hydrodynamics and nutrients/oxygen transport inside Ciénaga Grande de Santa Marta lagoon complex (Colombia) was developed using the MOHID Water modelling platform. Preliminary results show coherency with monitoring data for the main lagoon and La Barra strait, both for water level and annual salinity fluctuations. Howe...

We assessed the effectiveness of multiple hydrologic restoration scenarios for Lake Urmia, as well as the variation of its salinity regime under no intervention, using a 2D shallow water model. Tested scenarios, proposed by Urmia Lake Restoration Program Committee, include: Preservation of current lake status (no intervention), complete closing of...

The influence of substrate type and particle age on the remobilization of settled Atlantic salmon Salmo salar faecal material was studied through a set of controlled experiments in horizontal flow flumes, simulating different bottom conditions present in fish-farming locations along the coast of Norway. There was no significant effect of pellet age...

An accurate representation of the particle organic matter (POM) footprint is necessary in order to effectively predict impacts upon benthic communities and the risk of excessive organic enrichment beneath aquaculture sea-cages. Consequently, bottom-related processes such as particle resuspension must be adequately parametrized and evaluated in the...

Cold-water corals (CWCs) have come under increasing pressure from human activities over the last decades. Of particular concern in Norway is the potential impact of open net pen aquaculture on CWC reefs formed by Lophelia pertusa, a threatened and declining habitat. We conducted a 1 yr in situ transplantation experiment and corresponding field meas...

Large-scale finfish farms are increasingly located in dispersive hard-bottom environments where Laminaria hyperborea forests dominate; however, the interactions between farm effluents and kelp forests are poorly understood. Effects of 2 levels of salmonid fish-farming effluents (high and low) on L. hyperborea epiphytic communities were studied by s...

This study investigates Urmia Lake partial restoration and ecological water level using a well-known MOHID-2D water hydrodynamic model. The advantage of applying a hydrodynamic model is its ability to accurately compute the loss undergone by evaporation from lake water body by determining water body on the lake bathymetry which is the main cause of...

Part of an ongoing research initiative to improve the knowledge and management tools in a threatened estuarine system

Tropical montane amphibians have been the focus of recent and crucial conservation efforts. These initiatives require understanding on how elevation influences amphibian body temperature beyond the simplistic assumption of a monotonical decrease with elevation. This study addresses patterns and potential for inference in this context. As elevation...

Se presentan los resultados de la aplicación de diversas técnicas de preprocesamiento de datos con la finalidad de adecuar las series de tiempo de las variables fisicoquímicas medidas en el complejo lagunar Ciénaga Grande de Santa Marta a los requerimientos mínimos de la metodología de determinación de observaciones faltantes mediante atípicos adit...