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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.
Llibre d'Abstracts de les I Jornades d'Investigadors Predoctorals
Presentació del llibre d'abstracts de les Jornades, ja disponible en format electrònic
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.
Bibliografia en castellà sobre gestió de la 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.
Capraia Island, Tuscan Archipelago, photo Lisandro Benedetti-Cecchi
Geographic distance, water circulation and environmental conditions shape the biodiversity of Mediterranean rocky coasts
Ecological connectivity is important for effective marine planning and biodiversity conservation. Our aim was to identify factors important in influencing variation in benthic community structure on shallow rocky reefs in 2 regions of the Mediterranean Sea with contrasting oceanographic regimes.
Royal Soc Open Sci
Body reserves mediate trade-offs between life-history traits: new insights from small pelagic fish reproduction
Limited resources in the environment prevent individuals from simultaneously maximizing all life-history traits, resulting in trade-offs. In particular, the cost of reproduction is well known to negatively affect energy investment in growth and maintenance.
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.
Non-native fish to control Aedes mosquitoes: a controversial, harmful tool
Zika, chikungunya, yellow fever, and dengue are mainly transmitted to humans through Aedes mosquitoes. In attempts to control these diseases, governments and the public have encouraged the use of fish predators to control mosquito populations.
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.
Freshwater Biology
Influence of grazing on triclosan toxicity to stream periphyton
Interactions between emerging contaminants and other drivers of community structure and function are poorly known. We used laboratory microcosms to investigate the single and combined effects of grazing and triclosan toxicity on the structure and function of stream periphyton.
Marine and Freshwater Research
Contrasting intra-annual patterns of six biotic groups with different dispersal mode and ability in Mediterranean temporary ponds
The temporal patterns of six biotic groups (from phytoplankton to amphibians) and their responses to environmental variation were studied in a set of Mediterranean temporary ponds.
Reviews in Fish Biology and Fisheries
Interacting effects of spatial gradients and fishing gears on characterization of fish assemblages in large reservoirs
Understanding the variation of fish assemblages in reservoirs is crucial for precise interpretations of ecological processes. We used a large zoned reservoir (Itaipu, Brazil) to perform a quasi-experiment that assessed the relative role of spatial gradients and fishing methods on fish diversity and composition.
Limnol. Oceanogr.
Sediment microbial communities rely on different dissolved organic matter sources along a Mediterranean river continuum
Heterotrophic bacteria play a key role in the degradation of organic matter and carbon cycling in river sediments. Here, we studied the longitudinal patterns of sediment bacterial community composition and dissolved organic matter utilization under base flow and drought conditions in a Mediterranean river.
Methods in Ecology and Evolution
Trace metal accumulation as complementary dietary information for the isotopic analysis of complex food webs
Soto D.X., J. Benito, E. Gacia, E. García-Berthou & J. Catalan. Trace metal accumulation as complementary dietary information for the isotopic analysis of complex food webs. Methods in Ecology and Evolution, in press.
Nature Reviews Microbiology
The ecology and biogeochemistry of stream biofilms
Streams and rivers form dense networks, shape the Earth's surface and, in their sediments, provide an immensely large surface area for microbial growth. Biofilms dominate microbial life in streams and rivers, drive crucial ecosystem processes and contribute substantially to global biogeochemical fluxes.
Invertebrates in Freshwater Wetlands
Es publica el llibre “Invertebrates in Freshwater Wetlands. An International Perspective on their Ecology” co-editat per un investigador de l’Institut d’Ecologia Aquàtica (UdG)
L’editorial Springer acaba de publicar el llibre “Invertebrates in Freshwater Wetlands. An International Perspective on their Ecology” co-editat pels investigadors Darold Batzer (Department of Entomology, UGA) i Dani Boix (Institut d’Ecologia Aquàtica, UdG), i amb la participació dels investigadors de l’IEA Stéphanie Gascón, Jordi Sala i Xavier Quintana
Environmental filtering determines metacommunity structure in wetland microcrustaceans
Metacommunity approaches are becoming popular when analyzing factors driving species distribution at the regional scale. However, until the popularization of the variation partitioning technique it was difficult to assess the main drivers of the observed patterns (spatial or environmental).
Biological Invasions
La gambúsia, el fartet i els refugis artificials
NOU ARTICLE: Podrien els refugis artificials protegir a les espècies natives amenaçades com el fartet (Aphanius iberus) de les agressions de la gambúsia (Gambusia holbrooki)?
Revisió sobre les vies d'introducció de les espècies invasores
Substantial progress has been made in understanding how pathways underlie and mediate biological invasions. However, key features of their role in invasions remain poorly understood, available knowledge is widely scattered, and major frontiers in research and management are insufficiently characterized.

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