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Browsing Institut d'Ecologia Aquàtica by Subject "502"

Now showing items 1-9 of 9

    At the edge of aquatic systems: intermittent streambed microbial communities’ responses to hydrological alterations 

    Gionchetta, Giulia (Date of defense: 2019-10-25)

    Hydrological drought is a process of natural desiccation mainly due to large shortage of rainfall events. Reduced precipitations and prolonged droughts are spreading worldwide and threaten the integrity of aquatic ...

    Conservation ecology of headwater streams: a case study from the Pyrenees 

    López de Sancha, Alejandro (Date of defense: 2022-07-07)

    Pyrenean headwater streams are singular ecosystems with a particular seasonal pattern. They sustain a unique biodiversity especially sensitive to environmental change. Because of this, their ecosystem structure and function ...

    Effects of global change on fish assemblages in Mediterranean streams 

    Merciai, Roberto (Date of defense: 2016-09-30)

    L'objectiu d'aquesta tesi és de'explorar alguns aspectes de l'impacte humà sobre les poblacions de peixos i altres components dels ecosistemes fluvials Mediterranis de Catalunya. Es va mostrar com els peixos del Riu Llobregat ...

    Food webs of Mediterranean coastal wetlands 

    Compte Ciurana, Jordi (Date of defense: 2010-07-21)

    En aquesta tesi doctoral s'han estudiat els efectes directes i indirectes de dos tipus d'espècies claus de la comunitat aquàtica dels aiguamolls de l'Empordà (aiguamolls costaners mediterranis amb una xarxa tròfica senzilla). ...

    Insights into the distribution and ecological role of members of the archaeal Phylum Bathyarchaeota. From the global to the local scale 

    Fillol Homs, Mireia (Date of defense: 2017-03-23)

    The Phylum Bathyarchaeota is currently one of the most studied uncultured archaeal phyla. Bathyarchaeota are phylogenetically diverse, globally ubiquitous and especially abundant in marine subsurface sediments. Despite ...

    Metacommunities and biodiversity patterns in Mediterranean temporary ponds: the role of pond size, network connectivity and dispersal mode 

    Tornero Pinilla, Irene (Date of defense: 2020-03-13)

    We sampled the macrofaunal metacommunities in four networks of Mediterranean temporary ponds covering a wide range of pond sizes and different spatial extents. 1) In the smallest pond network, pond size was not related to ...

    Microbial communities responses in fluvial biofilms under metal stressed scenarios 

    Argudo Fernández, Maria (Date of defense: 2021-02-08)

    This thesis shows how the metals of natural and anthropic origin change significantly the composition of the prokaryotic communities (mainly the composition of bacteria). The β-diversity is the most sensitive variable to ...

    Reproductive and condition status of “cold water” marine fish: new insights from a changing environment 

    Serrat Llinàs, Alba (Date of defense: 2019-04-10)

    Exploited marine fish species with an affinity for cold waters inhabiting close to the warmer edge of their distribution area are exposed to stress caused by fishing and climate change. Three case studies of “cold water ...

    Resilience of aquatic metacommunities: implications for disturbance recovery 

    Cunillera-Montcusí, David (Date of defense: 2020-02-21)

    During the last years, there has been an increase in the number and intensity of disturbances, and their consequences related with global change, which have corroborated the already forecasted scenarios. One example are ...