Programa de Doctorat en Ciències del Mar: Envíos recientes
Mostrando ítems 21-40 de 124
The influence of climate change on the coastal Risk Landscape of the Catalan coast
Coastal areas concentrate very high socio-economic and natural values, which will be highly threatened by climate change, particularly by sea-level rise (SLR). Given the intrinsic characteristics of this zone, appropriate ...
Distribution patterns and abundance of Antarctic pristine benthic communities
Knowledge of the abundance, distribution patterns, and population ecology of antarctic benthic biodiversity have increased considerably during the last decades. Antarctic marine benthic biodiversity has been sampled primarily ...
The transport and environmental impacts of cruise ships : application to the case of the Port of Barcelona
The rapid evolution of the cruise industry in the last 50 years is evident. In the nineteenth century, cruise ships were simple modes of transport used by immigrants to travel on transoceanic voyages from Europe to North ...
Genome basis for functional differentiation in uncultured lineages of marine bacterivores
In the vast network of the ocean, microbes are abundant and unevenly distributed. As an important microbial component, the protists play a key role in global biogeochemical cycles and contribute to the recycling of nutrients ...
Els fluxos d'energia en el sistema acoblat oceà-atmosfera i el seu impacte en el clima de la Terra
This thesis aims to develop simple models that allow evaluating the relevance of the principal parameters that condition the energy flows in the ocean-atmosphere system, and how changes in these parameters impact the climate ...
Modelling of isoprene distribution and cycling in the ocean
Isoprene (C5H8) is the most widely emitted biogenic volatile organic carbon (BVOC). It is produced in the biosphere both on land and in the ocean, and in the atmosphere it acts as a precursor of secondary organic aerosols. ...
Distribution and drivers of transparent exopolymer particles (TEP) and Coomassie stainable particles (CSP) in the ocean
Transparent exopolymer particles (TEP) and Coomassie stainable particles (CSP) are operationally defined as organic particles > 0.4 µm that are stainable with the dyes Alcian Blue (specific for acidic polysaccharides) and ...
Analysis of the impact of organic pollutants on marine microbial communities
Increasing amounts of organic synthetic chemicals are currently emitted to the environment by human activities. The more recalcitrant fraction of this pollutant mixture reaches marine ecosystems mainly through rivers, ...
The Brazil-Malvinas Confluence : from local to global scales
The Southwest Atlantic Ocean is a key component of the global climate system. It holds the Confluence of the Brazil and Malvinas Currents (BMC), one of the highest frontal systems of the world ocean. The BMC is the encounter ...
Ecological and functional role of small and medium pelagic fish in the northwestern Mediterranean Sea : Rol ecológico y funcional de los peces pelágicos pequeños y medianos en el noroeste del mar Mediterráneo
Mediterranean marine ecosystems are fundamentally driven by their pelagic communities and small and medium-size pelagic fishes (SMPF) play crucial ecological roles. Although fluctuations of the populations of these organisms ...
Dynamics of marine dissolved organic matter : ocean metabolism and climate transitions
The Global Ocean is the largest Earth compartment holding carbon and nutrients that reaches the upper-ocean at temporal scales ranging from months to 10 kyr. The availability of these nutrients is fundamental to sustain ...
Retinoic acid signaling pathway : gene regulation during the onset of puberty in the European sea bass.
European sea bass (Dicentrarchus labrax) aquaculture is a thriving industry in Spain where it reached about 23,500 t and a market value of approximately 133 million euros. However, most of the sea bass farms produce a high ...
Microalgae in aquaculture wastewater : a new forecasting method of production in a marine system
In the field of aquaculture, the main microalgae application is animal nutrition, in which they can be used as an unprocessed component, or as dried material for feed preparations. Moreover, microalgae can assimilate the ...
Biological interactions between fish and jellyfish in the northwester Mediterranean
Jellyfish are important components of marine ecosystems, being a key link between lower and higher trophic levels. Jellyfish blooms occur sporadically and unpredictably in coastal areas and often have important socio-economic ...
Spatial, temporal and behavioral patterns of marine protists = Patrons espaials, temporals i de comportament dels protistes marins
The oceans are microbial-dominated ecosystems, where protists (single-celled eukaryotes) play fundamental roles performing multiple functions as primary producers, consumers, decomposers as well as trophic linkers in aquatic ...
Ecosystem modelling in the Eastern Mediterranean Sea : the cumulative impact of alien species, fishing and climate change on the Israeli marine ecosystem
Firstly, I reviewed modelling approaches that were used to assess the impact of invasive alien species (IAS) in aquatic ecosystems. According to the review, multispecies/ecosystem mechanistic models dominated the applications, ...
Large-scale biogeography of marine pelagic bacteria and archaea
The dark ocean contains about 70% of the ocean’s microbial cells and 60% of its heterotrophic activity, which is mainly fueled by the flux of organic particles produced in the surface ocean and exported to the bathypelagic ...
Advancement of methods for passive acoustic monitoring : a framework for the study of deep-diving cetacean
Marine mammals face numerous anthropogenic threats, including fisheries interactions, ocean noise, ship strikes, and marine debris. Monitoring the negative impact on marine mammals through the assessment of population ...
Bedforms and associated sediment dynamics on the inner shelves at different spatio-temporal scales
This Thesis conducts the study of bedform development and dynamics in the inner shelf integrating observations at different spatial and temporal scales. An initial assumption is that different scales of sedimentary processes ...
Remobilització dels contaminants orgànics persistents en els ecosistemes polars costaners
Persistent organic pollutants (POPs) constitute an heterogeneous group of chemical substances of great environmental relevance. Its persistence, bioaccumulation, long-range transport potential and negative effects on health ...
