Programa de Doctorat en Ciències del Mar: Enviaments recents
Ara mostrant els elements 81-100 de 129
Water mass variability in the eastern South Pacific and the ventilation of the oxygen minimum zone
This dissertation aims at extending our knowledge of the ESP OMZ through two main approaches. The first approach is based on tracer analysis and inverse modeling techniques. Such techniques are applied to hydrographic ...
Ocean velocities as inferred from Argo floats: methodology and applications
The velocity fields inferred from the trajectories of Argo floats have proven to be a valuable tool for observing the major ocean currents. The velocity fields can be used to examine statistical properties at regional and ...
Coastal vulnerability to storms at different time scales: application to the Catalan coast
Storm-induced impacts are known to cause important economic and environmental damages to coastal systems worldwide. Consequently, the relevance of including hazards and vulnerability assessments in coastal policies has ...
The diversity of dinoflagellates belonging to the gymnodiniales from the catalan coast (NW Mediterranean Sea)
Dinoflagellates are one of the most abundant and diverse groups of microalgae. Many dinoflagellates are covered with cellulose plates, whereas others lack these plates and are hence referred to as athecate or unarmoured. ...
Distribution and partitioning of organic pollutants and effects in coastal birds
Coastal areas are very susceptible to contamination due to the interaction of marine and anthropogenic processes. Persistent Organic Pollutants (POPs) are organic compounds very resistent to photolysis and chemical and ...
Distribution and population biology of pelagic decapod crustaceans of the western Mediterranean
The present thesis provides new information about pelagic decapod crustaceans, specially so concerning the Mediterranean pasiphaeids. Remarkable differences in the pattern of distributions of the pasiphaeids were observed ...
Coral reef ecosystem services economic valuation experiences from the South Pacific
Economic approaches through ecosystem services (ES) valuation are increasingly recommended by conservation organisations to face main market externalities affecting biodiversity in general and coral reef ecosystems. In ...
Optical propertiers of the dissolved organic matter as tracers of microbiological and geochemical processes in marine ecosystems
Oceans store 685 Pg of organic carbon of which 662 Pg are in a dissolved form. The diversity of compounds that make up the dissolved organic matter (DOM) pool and the low concentration of each compound make the chemical ...
Sediment dynamics and associated heavy metals in small river-and wave-dominated inner shelf (Barcelona city, Nw Mediterranean)
Wave storms and river inputs have been found to be the dominant forcing mechanism of sediment transport in continental shelves dominated by medium to large rivers around the world (e.g. Drake and Cacchione, 1985; Sherwood ...
Ecology of the marine copepod genus Oithona
Copepods have a crucial role in the pelagic marine ecosystem, for their participation in the nutrient cycling and carbon export in biogeochemical cycles, and their role as link organisms between primary producers and higher ...
Biogeochemical controls of the transport and cycling of persistent organic pollutants in the polar oceans
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 effect on ecosystems and ...
Expressió gènica en microorganismes marins
Ara que es comença a treure l’entrellat -o si més no a tenir una nova perspectiva- de la diversitat de microorganismes present als oceans gràcies a la biologia molecular i a la metagenòmica, el següent pas és esbrinar ...
Estudio numérico-experimental de la dispersión de efluentes de emisarios submarinos en la costa valenciana
Actualmente, la problemática que enfrentan las zonas costeras del Mediterráneo en general y la Comunidad Valenciana en particular, es la generación de grandes cantidades de agua residual urbana, principalmente durante la ...
Ultrastructural analysis of odontocete cochlea
The morphological study of the Odontocete organ of Corti including possible pathological features resulting from sound over-exposure, represent a key conservation issue to assess the effects of acoustic pollution on marine ...
Toxicogenomic analysis of environmental impact in aquatic systems
Field biomonitoring based on molecular biomarkers detects early warning signals of stress suffered by organisms exposed to contamination. The lower part of the Ebro River basin has a long pollution history related to the ...
Wind-driven currents in the coastal and equatorial upwelling regions
During the last two decades the scientific community has recognised the importance of the tropical Atlantic Ocean and the upwelling regions on the Earth's climate. This recognition has opened new questions such as: ¿What ...
Interactive effects of vertical mixing, solar radiation and microbial activity on oceanic dimethylated sulfur cycling
The production and subsequent emission of volatile compounds is one of the numerous ways by which microbial plankton participate in the cycling of elements and influence the Earth's climate. Dimethylsulfide (DMS), produced ...
Desarrollo de un modelo para el estudio de la dispersión de contaminantes provenientes de una granja de culrivo de camarón en el Complejo Lagunar Estero de Urías: una laguna costera urbanizada (México)
Con el objetivo de desarrollar una herramienta de gestión para la reducción del impacto de los efluentes sobre los ecosistemas receptores de una granja camaronícola en el Estero de Urías, Mazatlán, Sinaloa, México, se ...
Multi-risk assessment and users' perception: a futher step towards ecosystem-based beach management
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. However, the scarcity ...
Beach inundation and morphological changes during storms using video monitoring techniques
The predictability of beach inundation is mainly related to wave runup and most of the formulations that have been developed focus on the hydrodynamics, disregarding the morphological changes caused during storms. For these ...
