Mostrando ítems 21-30 de 45
Lucea Sureda, Anna (Fecha de defensa: 2004-01-23)
Amb aquest treball es preté comprovar la universalitat de la relació estequiomètrica de Redfield i recercar patrons consistents de les desviacions d'aquesta raó promig en ambients oligotrofics. Per tal ...
Lana Celaya, María Aránzazu (Fecha de defensa: 2012-02-10)
Marine aerosols have a large potential to influence the Earth¿s climate through their effects on cloud properties. The CLAW hypothesis goes further, and suggests that marine aerosols formed by the sulphur ...
Lozoya Azcárate, Juan Pablo (Fecha de defensa: 2012-10-29)
This thesis deals with the need to move towards a holistic, truly integrated and ecosystem-based beach management that allows a sustainable use of these systems within the socio-ecological paradigm. ...
Bahamon Rivera, Nixon (Fecha de defensa: 2002-05-24)
The response of phytoplankton to various ecological forcings was examined in the upper waters of the NW Mediterranean (MED) and the subtropical North Atlantic (NA) from field observations, analysis of ...
Mestres Ridge, Marc (Fecha de defensa: 2002-07-15)
Traditionally, the sea has been considered as the ultimate sink of most pollutions, due to its huge volume and assimilating capacities, and the coastal waters, because of their intermediate position ...
Mamouridis, Valeria (Fecha de defensa: 2015-05-15)
Different aspects of the bathyal ecosystem have been treated with the final aim to investigate trophic cascades driven by fishery (top-down control), a phenomenon that in bathyal systems has never been ...
Galbán Malagón, Cristóbal (Fecha de defensa: 2013-09-20)
Humanity is currently using more than 200000 synthetic organic compounds in many industrial, agricultural and domestic applications. Many of these chemicals reach the environment and have a harmful ...
Bregoli, Francesco (Fecha de defensa: 2015-11-12)
Landslides and debris flows falling into reservoirs, natural lakes, fjords or seas can generate impulsive waves, which can be assimilated to tsunamis. This phenomenon, also known as "landslide tsunami", ...
Horváth, Klaudia (Fecha de defensa: 2013-05-30)
Saving water is an economic and ecological need. One way to save water is to reduce losses in irrigation networks by canal automation. The goal of canal automation is to make the right amount of water ...
Serrano Samaniego, Letzi Graciela (Fecha de defensa: 2012-07-24)
Soft-bottom polychaete assemblages inhabiting shallow waters of the northern Mediterranean Spanish coast were studied with the objective to elucidate its present structure, distribution and diversity ...