Ara mostrant els elements 11-20 de 20
Timoner Amer, Xisca (Data de defensa: 2014-05-05)
Streams experiencing a recurrent non-flow phase (i.e., flow intermittency) are characteristic of world regions with arid and semi-arid climates, where Mediterranean regions are part of. During non-flow ...
Ann, Vannak (Data 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 (Data 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 ...
Tuulaikhuu, Baigal-Amar (Data de defensa: 2016-06-10)
The main aims of this thesis are: i) to evaluate arsenic toxicity in two major, interacting components of the freshwater ecosystem, biofilm and fish, to provide information on environmentally realistic ...
Carmona Catot, Gerard (Data de defensa: 2013-12-09)
The eastern mosquitofish (Gambusia holbrooki) is one of the most widely distributed and invasive inland fish. It is known that it has not been established in northern Europe or upstream of rivers, where ...
Corcoll i Cornet, Natàlia (Data de defensa: 2012-02-20)
Metal pollution in rivers is in great concern with human activities in the fluvial watershed. This thesis aims to investigate the potential use of chl-a fluorescence parameters as biomarkers of metal ...
Hernández del Amo, Elena (Data de defensa: 2019-10-04)
Nitrogen pollution in water is common in our environment, especially in places affected by agriculture and livestock, industry or wastewater discharge areas. Ammonium and nitrate are the most common ...
Freixa Casals, Anna (Data 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 ...
Noguerola Solà, Imma (Data de defensa: 2016-07-29)
This doctoral thesis studies the abundance, diversity, seasonal dynamics and activity of Epsilonproteobacteria in a meromictic basin of Lake Banyoles during three year cycles. We applied a complementary ...
Escoriza, Daniel (Data de defensa: 2015-03-02)
Amphibians are a group in worldwide decline. The factors that are causing this decline are not well known, but could be multifactorial, related to the recent expansion of pathogens and habitat disturbance. ...