Now showing items 1-20 of 124

    A bioeconomic analysis of the coastal fishery of Pernambuco State, North-eastern Brazil 

    Mattos, Sérgio Macedo Gomes de (Date of defense: 2004-10-27)

    Los conceptos bioeconómicos modernos invocan la importancia de definir los derechos de propiedad posibles de ser llevados a cabo dentro del contexto de gestión. La investigación pesquera debe considerar las expectativas ...

    A System of Integral Quality Indicators as a Tool for Beach Management 

    Ariza Solé, Eduard (Date of defense: 2007-07-11)

    Esta tesis parte de la concepción de la playa como un sistema integral en el que se desarrollan procesos interrelacionados. El análisis de estos procesos y del marco físico y administrativo donde se producen, es el hilo ...

    Advancement of methods for passive acoustic monitoring : a framework for the study of deep-diving cetacean 

    Solsona Berga, Alba (Date of defense: 2019-01-30)

    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 ...

    An updated framework for inferring interior ocean circulation from high resolution marine satellite observations 

    Piracha, Aqeel (Date of defense: 2024-02-16)

    (English) It was not until 1982 that Gösta Walin proposed a formal framework to connect heat input from the sun to the large-scale thermal circulation of the ocean through quantifying a sur- face ”drift” of water from high ...

    Analysis of the impact of organic pollutants on marine microbial communities 

    Cerro Gálvez, Elena (Date of defense: 2019-09-19)

    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, ...

    Analysis of the ocean dynamics in a wind-jet region using high-resolution models 

    Ràfols Bundó, Laura (Date of defense: 2018-09-13)

    The water currents and the wave field at the Catalan coast (in the Northwestern Mediterranean Sea) are investigated. However, the main research is focused at the northern margin of the Ebro Shelf, where there is a relatively ...

    Aplicación de imágenes de satélite SAR,en los estudios de contaminación marina y de dinámica de las aguas en el mediterráneo noroccidental 

    Platonov, Alexei (Date of defense: 2002-07-19)

    This thesis presents diverse theoretical and practical applications of the ERS 1/2 and RADARSAT satellite images of the Synthetic Aperture Radar SAR sensor (near 330 images in the Northwest Mediterranean NWM and 980 in ...

    Aspectos Biológicos y Ecológicos del Salmonete de Fango Mullus barbatus L., 1758 y del Salmonete de Roca Mullus surmuletus L.,1758, del Mediterráneo Noroccidental. 

    Aguirre Villaseñor, Hugo (Date of defense: 2000-04-06)

    En el presente trabajo se analizan aspectos concretos de la biología y ecología de Mullus barbatus y M. surmuletus.<br><br/>En primera instancia, se pretende determinar algunas diferencias biológicas, merísticas y morfométricas ...

    Assessment of the biological risks associated to the use of biosolids and wastewater 

    Sanz Lanzas, Claudia (Date of defense: 2023-05-26)

    (English) The circular economy is an emerging concept presented as a solution to counteract the damage caused by the linear economic scheme followed in the past decades. It is based on the principle of "closing the life ...

    Beach inundation and morphological changes during storms using video monitoring techniques 

    Sancho García, Amanda (Date of defense: 2012-11-16)

    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 ...

    Bedforms and associated sediment dynamics on the inner shelves at different spatio-temporal scales 

    Guerrero Sánchez, Queralt (Date of defense: 2019-02-08)

    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 ...

    Biodegradation of polycyclic aromatic hydrocarbons in the surface ocean 

    Martínez Varela, Alícia (Date of defense: 2022-04-29)

    Increasing quantities of organic pollutants (OP) are being released to the environment, posing a threat to Earth’s life system. In the marine environment, OP pollution caused by oil spill accidents receives a lot of academic ...

    Biogeochemical controls of the transport and cycling of persistent organic pollutants in the polar oceans 

    Galbán Malagón, Cristóbal (Date of defense: 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 effect on ecosystems and ...

    Biological interactions between fish and jellyfish in the northwester Mediterranean 

    Tilves Matheu, Uxue (Date of defense: 2019-05-16)

    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 ...

    Biological rhythms in the Norway lobster (Nephrops Norvegicus L.) : Ecological modulation and genetic basis = Ritmos biológicos en la cigala (Nephrops norvegicus L.) : modulación ecológica y bases genéticas 

    Sbragaglia, Valerio (Date of defense: 2015-07-20)

    Nephrops norvegicus is an important fishery resource for Europe. Its rhythmic burrowing behavior is strictly related to catchability. Here I studied such behavior under laboratory conditions. I investigated the combined ...

    Biology, ecology and ecophysiology of the box jellyfish Carybdea marsupialis (Cnidaria: Cubozoa) = Biologia, ecologia i ecofisiologia de la cubomedusa Carybdea marsupialis (Cnidaria: Cubozoa) 

    Acevedo Dudley, Melissa Judith (Date of defense: 2016-10-24)

    Over the last years, the sightings of the cubomedusa Carybdea marsupialis have increased in the Mediterranean Sea and this has been linked to an increase in its abundance. Consequently, this phD thesis addresses some ...

    Biomarcadors paleoclimàtics a la conca de la Guaiana (Atlàntic tropical occidental) 

    Rama-Corredor, Óscar (Date of defense: 2017-11-06)

    The main objective of this thesis is the study of a marine sediment core located in front of French Guiana (7°48’75’’N i 53°0’80’’W -1233m bsl and 39m length), in northern South America. The last 415,000 years were studied ...

    The Brazil-Malvinas Confluence : from local to global scales 

    Orúe-Echevarría Iglesias, Dorleta (Date of defense: 2019-11-04)

    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 ...

    Caracterización de la dispersión de contaminantes en la zona costera 

    Díez Rilova, Margarita (Date of defense: 2012-05-07)

    En nuestra sociedad los derivados del petróleo son la fuente principal de energía. Los accidentes con hidrocarburos han protagonizado episodios de contaminación trágicos para la biosfera del océano. Se analizan algunos ...

    Challenges for shellfish aquaculture in Mediterranean coastal areas 

    Fernández Tejedor, Margarita (Date of defense: 2023-12-18)

    (English) The increase in the production of marine bivalves targets the sustainable development of aquaculture to improve global food and nutrition security. Bivalve aquaculture is currently facing challenges and threats ...