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Showing 10 out of a total of 44 results for collection: Departament d'Ecologia. (0.927 seconds)
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(Date of defense: 08-01-2016)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 introductions to such ...
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(Date of defense: 10-12-2012)In the northwestern Mediterranean anchovy and sardine are among the most ecologically and economically important species. Both species are planktivorous during all their life stages, which could alledgedly lead to expect ...
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(Date of defense: 20-06-2013)“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 communities inhabitting ...
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(Date of defense: 05-02-2016)The annual dynamics of three different ammonia-oxidizing archaea (AOA) ecotypes (amoA gene) and of the SAGMCG-1 (Nitrosotalea-like aquatic Thaumarchaeota) group (16S rRNA gene) were studied by newly designed specific primers ...
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(Date of defense: 13-06-2014)The overarching goal of this dissertation was to explore relationships between streamwater nitrogen (N) and the most representative primary uptake compartments (PUCs) in stream ecosystems (e.g. microbial biofilm, algae, ...
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(Date of defense: 25-11-2015)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 physical and biological ...
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(Date of defense: 06-06-2012)En la presente investigación, se estudió la estructura espacial de las asociaciones de peces demersales que forman parte de la captura incidental de la pesca de camarón, en el ecosistema costero del Golfo de Tehuantepec, ...
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(Date of defense: 07-09-2012)El estudio de los microorganismos en cultivo puro ha propiciado el desarrollo de la genética, la bioquímica y la biotecnología. Sin embargo, la ecología ha permanecido reticente a incorporar a los microorganismos en su ...
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(Date of defense: 14-09-2012)El comportamiento fagotrófico en especies fitoplanctónicas fue evaluado por medio de técnicas de análisis celular que permiten establecer patrones individuales de cada una de ellas. Primeramente, se calibró el contenido ...
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(Date of defense: 05-12-2014)The Ebro Delta represents the most important wetland area in Catalonia, the second most important in Spain (after Doñana National Park) and one of the most important estuarine zones in Europe. Although relatively recently ...
