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Grupo de Investigación en Ecología Acuática (EcoAqua)

Arxiu de notícies



Current Zoology
Effect of environmental enrichment on the body shape of the pumpkinseed
Effect of environmental enrichment on the body shape of the pumpkinseed
Noëlle Fabre, Anna Vila-Gispert, Cristina Galobart, Dolors Vinyoles
Current Zoology, zoaa012,
Current Zoology
Size-related effects and the influence of metabolic traits and morphology on swimming performance in fish
Energy metabolism fuels swimming and other biological processes. We compared the swimming performance and energy metabolism within and across eight freshwater fish species.
Reliability analysis of fish traits
Reliability analysis of fish traits reveals discrepancies among databases
Trait‐based approaches are commonly used in ecology to understand the relationship between biodiversity and ecosystem functioning, environmental filtering or biotic responses to anthropogenic perturbations. However, little is known about the reliability of assigned traits and the consistency of trait information among different databases currently in use.
Investigadors de la UdG alerten que les espècies introduïdes han augmentat un 30 % en aigües continentals
Han actualitzat la llista d’espècies establertes al medi ambient, introduïdes de manera intencionada, il·legal o per accident. Han detectat 27 espècies noves però han observat un estancament o disminució en les taxes des del punt de vista global.
Alien animal introductions in Iberian inland waters
Alien animal introductions in Iberian inland waters: An update and analysis
Inland waters provide innumerable ecosystem services and for this reason are among the most negatively impacted ecosystems worldwide. This is also the case with invasive alien species, which have enormous economic and ecological impacts in freshwater ecosystems.
Amphibians of North Africa
Amphibians of North Africa
Amphibians of North Africa is a comprehensive compilation of available data on the amphibians and reptiles found in various ecosystems across North West Africa and parts of the Mediterranean region.
Resident (DNA) and active (RNA) microbial communities in fluvial biofilms
Responses of resident (DNA) and active (RNA) microbial communities in fluvial biofilms under different polluted scenarios
Pollution from human activities is a major threat to the ecological integrity of fluvial ecosystems. Microbial communities are the most abundant organisms in biofilms, and are key indicators of various pollutants.
Relationships of critical swimming speed Ucrit (a), maximal metabolic rate MMR (b) and absolute aerobic scope AAS (c) with fish mass for Spanish toothcarp, Aphanius iberus (N = 28) and mosquitofish, Gambusia holbrooki (N = 60).
Differences in swimming performance and energetic costs between an endangered native toothcarp (Aphanius iberus) and an invasive mosquitofish (Gambusia holbrooki)
Swimming performance is a key feature that mediates fitness and survival in many fish species. Using a swim tunnel respirometer, we compared prolonged swimming performance and energy use for two competing species: an endangered, endemic toothcarp (Aphanius iberus) and a worldwide invasive mosquitofish (Gambusia holbrooki).
Fish and Fisheries
Effective monitoring of freshwater fish
Freshwater ecosystems constitute only a small fraction of the planet's water resources, yet support much of its diversity, with freshwater fish accounting for more species than birds, mammals, amphibians or reptiles. Fresh waters are, however, particularly vulnerable to anthropogenic impacts, including habitat loss, climate and land use change, pollution and biological invasions.
Ebro River fish
El filtrado ambiental gobierna la distribución espacial de los peces exóticos en un gran río mediterráneo con impactos antrópicos
La abundancia de peces exóticos y el declive de las especies nativas en el río Ebro se explican más por factores ambientales que por asociaciones bióticas. Los peces exóticos dominan en los tramos de ríos más bajos con mayor temperatura, mayores cambios del uso del suelo y se ven favorecidos por los embalses y la regulación hidrológica.
Global Change Biology
Susceptibility of European freshwater fish to climate change: species profiling based on life-history and environmental characteristics
Climate change is expected to strongly affect freshwater fish communities. Combined with other anthropogenic drivers, the impacts may alter species spatio-temporal distributions, and contribute to population declines and local extinctions.
pond metacommunities
Dispersal mode and spatial extent influence distance-decay patterns in pond metacommunities
Assuming that dispersal modes or abilities can explain the different responses of organisms to geographic or environmental distances, the distance-decay relationship is a useful tool to evaluate the relative role of local environmental structuring versus regional control in community composition.
Bilayer Infiltration System
Bilayer Infiltration System Combines Benefits from Both Coarse and Fine Sands Promoting Nutrient Accumulation in Sediments and Increasing Removal Rates
Infiltration systems are treatment technologies based on water percolation through porous media where biogeochemical processes take place. Grain size distribution (GSD) acts as a driver of these processes and their rates and influences nutrient accumulation in sediments.
Hydrological alteration in the River Ebro
Environmental and spatial correlates of hydrologic alteration in a large Mediterranean river catchment
The natural flow regime is of central importance to the ecological integrity of rivers. Many rivers are heavily regulated and their flow regime has been severely affected by weirs and dams.
arsenic biofilm
New scientific article: Mutual interaction between arsenic and biofilm in a mining impacted river
Epilithic biofilms growing in a gold-mining impacted river accumulate high As concentrations. As inhibits algal growth and increases bacterial and dead diatom densities. Methylated As-species found intracellularly suggests As-detoxification by biofilms. Nutrients, DOC, temperature or light availability must be considered when analyzing effects of As in freshwater ecosystems.
New scientific article: A generic method to assess species exploratory potential under climate change
Climate change alters the spatio-temporal distributions of suitable habitats to which species have to adjust. The generic trait-based method to assess species exploratory potential under climate change is based on the Exploratory Potential Index (EPI).
New scientific article: Inter-population variability in growth and reproduction of invasive bleak Alburnus alburnus (Linnaeus, 1758) across the Iberian Peninsula
The common bleak is an invasive non-native fish that threatens endemic fish in the Iberian Peninsula. The wide inter-population variability in growth and reproduction among Iberian rivers contributes to the species’ successful establishment in novel habitats.
Baix Ter
Evolució, caracterització i gestió de la hidrologia del Baix Ter
S’acaba de publicar el 2n volum de la col·lecció Recerca i Territori a la plataforma Prismàtic.
young researchers in the field
Scientific article: Local and regional drivers of headwater streams metabolism: insights from the first AIL collaborative project
This study aims to analyse the geographical and temporal patterns in stream metabolism and identify the main drivers regulating the whole ecosystem metabolic rates at local and regional scales.
Silurus glanis
Scientific article: Ecology, behaviour and management of the European catfish
Commercial values and recreational interests threatens megafishes, while some species have become invasive exotic, such as the European catfish. This article reviews the most recent knowledge on its current distribution and ecology and identify key questions to stimulate new research on this and other freshwater invaders.
Abundance of invasive peacock bass increases with water residence time of reservoirs in southeastern Brazil
Neotropical freshwater ecosystems are experiencing a great expansion in the number of invasive species, which is especially alarming since this region harbours 30% of the world’s fish biodiversity with high levels of endemism. We aimed to evaluate the main predictors of peacock basses (Cichla spp.) abundance outside their native range, which are the Amazon and Tocantins-Araguaia river basins.
Nature Ecology and Evolution
Global hotspots and correlates of alien species richness across taxonomic groups
Human-mediated transport beyond biogeographic barriers has led to the introduction and establishment of alien species in new regions worldwide. However, we lack a global picture of established alien species richness for multiple taxonomic groups.
Rubio-Gracia STOTEN
Combined effects of hydrologic alteration and cyprinid fish in mediating biogeochemical processes in a Mediterranean stream
Flow regimes are important drivers of both stream community and biogeochemical processes. However, the interplay between community and biogeochemical responses under different flow regimes in streams is less understood.
Publicació del llibre “La pesca artesanal al Cap de Creus: una mirada al futur”
El Parc Natural de Cap de Creus acaba de publicar el llibre “La pesca artesanal al Cap de Creus: una mirada al futur”, escrit per la Dra. Sílvia Gómez (Universitat Autònoma de Barcelona) i el Dr. Josep Lloret (Institut d’Ecologia Aquàtica, UdG) i ha estat cofinançat pel Consell Social de la UdG.
Environmental Science and Pollution Research
Examining predictors of chemical toxicity in freshwater fish using the random forest technique
Chemical pollution is one of the main issues globally threatening the enormous biodiversity of freshwater ecosystems. The toxicity of substances depends on many factors such as the chemical itself, the species affected, environmental conditions, exposure duration, and concentration.
Bibliografía en español sobre gestión de pesca continental
Uno de los objetivos de la Red de Excelencia ICTIOS es reducir la distancia entre ictiólogos, gestores ambientales y público en general y ayudar a la transferencia de los resultados de la investigación en peces continentales.
Tercer informe sobre el canvi climàtic a Catalunya
Tercer informe sobre el canvi climàtic a Catalunya
La biodiversitat dels sistemes aquàtics continentals pot ser afectada pel canvi climàtic. Els ecosistemes aquàtics mediterranis presenten una diversitat elevada de fauna i flora, i per bé que la biota s’ha adaptat als canvis hidrològics extrems, l’increment d’aquests pot posar-la al límit de la capacitat de resiliència.
Peces alóctonos para el control de mosquitos Aedes: una herramienta controvertida y dañina
El zika, el chikungunya, la fiebre amarilla y el dengue se transmiten a los seres humanos principalmente a través de mosquitos del género Aedes. Para intentar controlar estas enfermedades, los gobiernos y el público ehan fomentado el uso de peces depredadores para controlar las poblaciones de mosquitos.
Global Change Biology
Global meta-analysis of native and nonindigenous trophic traits in aquatic ecosystems
Ecologists have recently devoted their attention to the study of species traits and their role in the establishment and spread of nonindigenous species (NIS). However, research efforts have mostly focused on studies of terrestrial taxa, with lesser attention being dedicated to aquatic species.
Peixos continentals de Catalunya
NOU LLIBRE: "Peixos continentals de Catalunya: Ecologia, conservació i guia d'identificació"
Aparicio E., C. Alcaraz, G. Carmona-Catot, E. García-Berthou, Q. Pou-Rovira, R. Rocaspana, M.J. Vargas & D. Vinyoles. 2016. Peixos continentals de Catalunya. Ecologia, conservació i guia d'identificació. Lynx Edicions, Barcelona. 251 p.

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