Mostrando ítems 1-6 de 6
Serra Gasa, Alexandra (Fecha de defensa: 2009-07-03)
L'activitat humana és una de les majors causes d'elevades concentracions de nutrients i substàncies tòxiques en els ecosistemes fluvials. Entre la gran varietat de factors que alteren aquests ecosistemes, ...
Ricart Viladomat, Marta (Fecha de defensa: 2011-01-14)
L'activitat humana representa una de les majors causes d'entrada d'una gran varietat de substàncies en els ecosistemes fluvials. L'objectiu principal d'aquest treball es investigar els efectes que els ...
Ann, Vannak (Fecha de defensa: 2015-06-30)
River sediments are composed by a variety of grain sizes which determine their permeability and biogeochemistry. The aim of this thesis was to test whether differences in river sediment physical ...
Proia, Lorenzo (Fecha de defensa: 2012-07-20)
The main goal of this thesis is to investigate the effects of consequences of global change on fluvial biofilms. To achieve this objective a multi-marker approach has been used at different experimental ...
Rubio Gracia, Francesc (Fecha de defensa: 2021-10-27)
This thesis aimed to assess the responses of stream biota to flow alterations, in terms of water velocity increments and reductions of discharge, and to metal pollution. The investigations performed ...
Freixa Casals, Anna (Fecha de defensa: 2016-02-18)
The objective of this thesis was to study how sediment microbial communities in Mediterranean rivers used dissolved organic matter at different spatial and temporal scales. Results from the two field ...