Browsing Departament de Biologia by Subject "574"

Now showing items 1-7 of 7

Diversity, dynamics and activity of Epsilonproteobacteria in a stratified karstic lake. Implications in carbon and sulfur cycles

Noguerola Solà, Imma (Date of defense: 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 array of molecular ...

Diversity, dynamics and activity of mesophilic Archaea in stratified feshwater lakes. Implications in biogeochemical cycles

Llirós Dupré, Marc (Date of defense: 2010-03-12)

Aquesta tesi doctoral va estudiar la diversitat (riquesa i abundància), la distribució i la dinàmica de les comunitats planctòniques d'Archaea presents a diferents llacs estratificats temperats d'aigua dolça per aportar ...

Estructura poblacional y conectividad genética de la gamba roja, Aristeus antennatus, en el Mar Mediterráneo noroccidental

Agulló Chazarra, Melania (Date of defense: 2022-11-16)

The conservation of a commercially exploited species is fundamental to ensure the long-term sustainability of the resource. Thus, genetic information is essential for the identification of reproductively isolated and ...

From inocula to biological reactors: molecular characterization of N-cycle bacterial assemblages in a PANAMMOX process

Sànchez Melsió, Alexandre (Date of defense: 2015-06-05)

Nowadays, the combination of the autotrophic nitrification together with heterotrophic denitrification is the most common process for N-removal in the WWTPs. However, when the C:N ratio is low, this two-step process does ...

Genetic diversity and population structure of the non-native Eastern mosquitofish (Gambusia holbrooki) in Mediterranean streams

Díez del Molino, David (Date of defense: 2015-06-05)

Mosquitofish is a small, voracious, highly fecund freshwater fish species originated from northeaster America, that was introduced worldwide to control mosquito populations. In this thesis we have studied the genetics of ...

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 ...

Variability in the health status and reproductive traits of European sardine stocks in the Mediterranean. Implications for fishery management

Caballero-Huertas, Marta (Date of defense: 2023-05-26)

Small pelagic fish play an important ecological role mainly due to their contribution in transferring energy from low to higher trophic levels. Likewise, the capture of these species is in many cases an important nutritional ...