Recherche documentaire
Trier par :
-
Stéphane Tétard / Dominique Courret / Laurence Tissot / Sylvain Richard / Thierry Lagarrigue / Aurélien Frey / Vincent Mataix / Olivier Mercier / Sylvie Tomanova - 2023Hydropower production can cause migration delay and fish mortality, impeding the safe and timely downstream migration of diadromous fish, such as Atlantic salmon (Salmo salar) and silver eels (Anguilla anguilla). To date, only a few field performance tests, especially for eels, have evaluated the...Contributeur (s):
-
Office international de l'Eau (OiEau) - RAPPORT - 2023Les conditions anticycloniques ont dominé, entrecoupées de quelques épisodes pluvio-orageux intenses. Le temps est resté chaud et sec la majeure partie du mois, avec un épisode de forte chaleur inédit du 3 au 11. Avec une température moyenne de 21.1 °C, soit 3.6 °C au-dessus de la normale,...Contributeur (s): Office français de la biodiversité (OFB), BRGM, Electricité de France (EDF), EPTB Seine Grands Lacs, EPTB Loire, Météo-France, Ministère de la Transition écologique (Direction de l'eau et de la biodiversité), Voies navigables de France (VNF)
-
Tian Qian / Hu He / Kuanyi Li / Chunlei Yue / Erik Jeppesen - 2023Subtropical lakes are often dominated by benthi-omnivorous fish (e.g., crucian carp) that may substantially disturb sediments and thereby increase water turbidity and nutrient concentrations. Piscivores stocking is sometimes used to control these benthi-omnivores in the expectation that they will...Contributeur (s):
-
Office international de l'Eau (OiEau) - RAPPORT - 2023Des passages perturbés actifs se sont succédés sur une grande partie du territoire du 1er au 5 août dans une ambiance très fraîche pour la saison. Après ce début de mois quasi automnal, la France a connu une vague de chaleur tardive du 17 au 24. Cet épisode caniculaire a été particulièrement long...Contributeur (s): Office français de la biodiversité (OFB), BRGM, Electricité de France (EDF), EPTB Seine Grands Lacs, EPTB Loire, Météo-France, Ministère de la Transition écologique (Direction de l'eau et de la biodiversité), Voies navigables de France (VNF)
-
Hu He / Lei Zhang / Xiaoyu Ning / Zhigang Mao / Erik Jeppesen - 2023Excess nitrogen (N) loading in summer often boosts phytoplankton growth and increase algal turbidity. In eutrophic shallow lakes, the increased algal production may also augment the abundance of deposit-feeding tubificid worms and thereby sediment resuspension and non-algal turbidity. However, few...Contributeur (s):
-
J.Ö. SWAHN - 2023Contributeur (s):
-
Irmak Kurtul / Ali Serhan Tarkan / J. Robert Britton - 2023Ecological studies on native and invasive populations of European perch Perca fluviatilis and pumpkinseed Lepomis gibbosus are often based on stable isotope (SI) analysis based on dorsal muscle, where samples are usually taken from sacrificed fishes. However, other tissues, such as scale and fin...Contributeur (s):
-
Gabriel Laufer / Noelia Gobel / Nadia Kacevas / Ignacio Lado - 2023Biological invasions are a major cause of biodiversity and ecosystem services loss. However, information on distribution and impacts is limited for many alien species, restricting the development of local management measures. The aim of this study is: to identify the current situation of the...Contributeur (s):
-
Contributeur (s):
-
Robert M. Hughes / Alan T. Herlihy / Randy Comeleo / David V. Peck / Richard M. Mitchell / Steven G. Paulsen - 2023Both native and non-native taxa richness patterns are useful for evaluating areas of greatest conservation concern. To determine those patterns, we analyzed fish and macroinvertebrate taxa richness data obtained at 3475 sites collected by the USEPA's National Rivers and Streams Assessment. We...Contributeur (s):
-
Tiziano Bo / Alberto Doretto / Anna Marino / Alex Laini / Alessandro Candiotto - 2023Damming and impoundment are among the main flow-related alterations in rivers worldwide. However, compared to the highland river sections where the impacts associated with dams have been largely studied, still scarce evidence is available in scientific literature for large, lowland rivers. In this...Contributeur (s):
-
Office international de l'Eau (OiEau) - RAPPORT - 2023Dans la continuité de la seconde quinzaine de mai, le soleil a brillé très généreusement sur la moitié nord du pays tandis que des épisodes pluvio-orageux localement violents se sont succédé sur les régions du Sud. Du 18 au 22, les orages ont toutefois concerné une grande partie du pays. Ils ont...Contributeur (s): Office français de la biodiversité (OFB), BRGM, Electricité de France (EDF), EPTB Seine Grands Lacs, EPTB Loire, Météo-France, Ministère de la Transition écologique (Direction de l'eau et de la biodiversité), Voies navigables de France (VNF)
-
Barbora Števove / Darina Arendt / Kristína Slovák Švolíková / Dana Szabóová / Kristína Žitňanová / Daniel Grulá - 2023Molecular diet analyses from faeces appear to be an ideal alternative to traditional feeding ecology studies. Nevertheless, this method can carry a risk of contamination from the environment or from body surface of the fish itself. To tackle the contamination problem, an experiment was performed...Contributeur (s):
-
Barbora Števove / Darina Arendt / Kristína Slovák Švolíková / Dana Szabóová / Kristína Žitňanová / Daniel Gruľa - 2023Molecular diet analyses from faeces appear to be an ideal alternative to traditional feeding ecology studies. Nevertheless, this method can carry a risk of contamination from the environment or from body surface of the fish itself. To tackle the contamination problem, an experiment was performed...Contributeur (s):
-
Stream periphyton has implications for ecosystem processes, yet little is known about its function in response to restoration efforts. In this study, we compared the taxonomic and functional composition of periphytic ciliates between restored and unrestored (control) streams for two different...Contributeur (s):