Arizmendi Mejía, Rosana (Date of defense: 2015-11-25)
Climate change, along with other anthropogenic pressures (e.g. water pollution, overfishing and habitat degradation), is severely impacting oceans around the world, producing important changes in its ...
Castro Català, Núria de (Date of defense: 2016-02-05)
Aquatic systems are under pressure from multiple stressors that affect the structure, the functioning, and the health of species, communities and ecosystems. One of the main human pressures affecting ...
Mendoza Barberá, Guillermo de (Date of defense: 2013-06-20)
“Lake macroinvertebrates and the altitudinal gradient in the Pyrenees [Los macroinvertebrados lacustres y el gradiente altitudinal en los Pirineos]” is a thesis about freshwater macroinvertebrate ...
Varas Schiavi, Manuel (Date of defense: 2012-06-01)
El delta del Ebro es uno de los más importantes de la Península Ibérica y del Mediterráneo. La bahía El Fangar, foco de este estudio, mide unos 12Km2, con valores de profundidad que varían entre los 0 ...
Gera, Alessandro (Date of defense: 2013-06-21)
Overall, this thesis is an attempt at approaching seagrass ecosystems from a landscape perspective, with the aim of increasing knowledge about the processes generating patterns at large spatial scales, ...
Sperlich, Dominik (Date of defense: 2015-07-24)
The Mediterranean Basin is a climate-change hotspot of the world. Predicted reductions in annual precipitation, increases in mean temperature, and increases in the variability and occurrence of extreme ...
Caraballo López, Tatiana (Date of defense: 2013-12-13)
Phytoplankton embraces a large diversity of life forms, from pioneer oxygenic photosynthetic cyanobacteria to a broad spectrum of phylogenetically distant eukaryotic organisms. In many of the evolutionary ...
Miró Pastó, Alexandre (Date of defense: 2016-01-08)
Pyrenean high mountain lakes are naturally fishless due to natural barriers that have prevented the natural colonisation of fish species from lower streams. However, there have been numerous trout ...
Ribot Bermejo, Miquel (Date of defense: 2015-03-27)
Human activities have increased dissolved inorganic nitrogen (DIN) availability and modified the relative proportion of DIN as NO3- or NH4+ in running waters. Because nitrogen (N) is an essential element ...
Muñoz Camarillo, Gloria (Date of defense: 2013-04-05)
El mejillón cebra, Dreissena polymorpha (Pallas, 1771), es conocido por ser una de las especies invasoras de agua dulce más dañinas, tanto desde el punto de vista ecológico como económico, a nivel ...