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University of Duisburg and Essen, Aquatic Ecosystems Research Group, Universitätsstr. 5, D-45141 Essen, Germany

News

Website update

We’re currently translating our page (see language choice button at the lower left corner of the site). This may take some days.

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Guest researcher visit

Last week, Katarina Goffova from the Zoological Institute of the Slovak Academy of Sciences joint the GeneStream Team for a 3-week research visit. During her visit, Katarina will work with members of the GeneStream Team and Maximilian Schweinsberg from the Department of Animal Ecology, Evolution and Biodiversity to learn new molecular and bioinformatic techniques that […]

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Advanced course: Population genetics and Phylogeny

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Since three weeks we’re running our annual advanced course in “Population Genetics & Phylogeny” at the Department of Animal Ecology, Evolution and Biodiversity.  In the course, which is a four-week full-day (+night) endeavour, we teach practical skill (lab techniques / bioinformatics) as well as theoretical concepts in population genetics and phylogeny. As in the last […]

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Zeitraffer-Videos als Playlist

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Auf unserem neuen offiziellen GeneStream YouTube Channel, sind nun alle Zeitraffer Aufnahmen vom Mesokosmos Experiment am Breitenbach verfügbar. Das neue Experiment ist bereits in Planung. Wir werden auch in diesem Jahr wieder neue Videos zu aktuellen Projekten veröffentlichen.  

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Vortrag Florian Altermatt

Am Donnerstag, 6.2.2014 wird uns Dr. Florian Altermatt von der EAWAG (CH) besuchen. Im Rahmen seines Besuchs wird Florian einen öffentlichen Vortrag mit dem Titel “Diversity patterns and dispersal processes in riverine metacommunities” innerhalb des Biodiversitätskolloquiums halten. Zeitpunkt: 16:15h Ort: ND 03/99 Alle Interessenten sind herzlich willkommen!   Zum Inhalt: Understanding the effect of spatial habitat […]

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iSEQ Symposium

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The iSeq symposium for Methods and applications of Next Generation Sequencing in evolutionary research took place from the 13th to 14th of November in Leipzig. It was organised by the iDiv centre (http://www.idiv-biodiversity.de). More than hundred scientists from different German universities working with Next Generation Sequencing technics attended this meeting. Two members of the GeneStream […]

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Talk at Uni Bielefeld

This Wednesday, Florian was invited by Joe Hoffman of University of Bielefeld to present the new results of the GeneStream project as part of the “Animal Behaviour and Evolution” Seminar Series.  

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Fotoshooting: Metabarcoding

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Last week, our benthic macroinvertebrates took part in a rather unconventional photo shooting: As part of a planned method publication we want to apply for the cover picture and have therefore put our inverts into scene. See an example below. Picture 1: Several hundred animals are grinded to fine powder using liquid nitrogen and a […]

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DGL conference + Poster award

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The Annual Meeting of the German Limnological Society in Magdeburg is over. Beside many excellent talks and posters the conference offered a platform for scientific exchange with our colleagues and friends. We are in particular proud that Martina Weiss has been awarded a price for the best scientific poster (“Genetic diversity and connectivity in Gammarus […]

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DGL Meeting Magdeburg

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From the 29th of September until the 2rd of October we will attend the Annual Meeting of the German Limnological Society (DGL). The GeneStream Team will present new results from the project in five talks and two posters. Also, Florian will organize a special conference session on molecular biogeography and systematics on monday together with […]

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Invitation talk

Tomorrow, Thursday 18.09.2014 we’ll have a talk at 2 p.m. in our seminar room NDEF 05-152. Title: “Effects of multiple stressors on stream structure and functioning“. Presenter: Our guest Romana Salis (University of Otago). Guest are welcome!

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International Realisation Budget

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We are happy to announce that Vasco Elbrecht was awarded with an “International Realisation Budget” by the RUB Research School Plus. Congratulations! With the funding, international cooperation partners will be visited and the results of our research will be presented on international conferences. We are looking forward to keep you updated on this blog.

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Guest research from NZ

Romana Salis, a researcher from our collaborators in New Zealand (Stream Team, University of Otago, Prof Christoph Matthaei), is currently in Bochum to conduct analyses on the impact of agricultural stressors on stream biodiversity. Welcome once more to our team!!  

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Second MiSeq run successful

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The second MiSeq run is now finished. We are testing how many species we can reliably identify with our method. The lab work is now finished and we will analyse the data over the next month. It is planned to get these exiting results published by the end of this year. Additionally we have produced […]

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Video: DNA extraction

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In this video we show how we homogenise our samples with liquid nitrogen to validate our metabarcoding methods. Once we have grinded the tissues to a fine powder, we divide it up on several reaction tubes and extract the DNA. With DNA barcoding and illumina sequencing we can identify the different species wich were present […]

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2. Metabarcoding analysis

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After successfully completing our first community barcoding analysis, we have started the preparations for a second metabarcoding analysis. Here, we want to test if we can recover the DNA of a variety of different freshwater organisms (resembling a typical macrozoobenthos sample) with our current protocol. This is important to identify bulk macrozoobenthos samples, so molecular data can be […]

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Benthic macroinvertebrate sampling in the Arnsberger Wald

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As a part of the subproject dealing with the species diversity the fauna of several sections of the Kleine Schmalenau, Große Schmalenau and their tributaries has been sampled within the last three weeks. The macroinvertebrates of the more than 20 sampling sites might help to explain the prescence of certain species in both natural and […]

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New video of the mesocosm experiment 2014!

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This year we installed and ran our mesocosm system at the Felderbach (Ruhr area, near Hattingen). In today’s video, we show how we prepared the bottom substrate our experimental channels to represent the habitat of the stream as much as possible. All channels were prepared in the same way. Picture 1: All channels were filled with the […]

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MiSeq run successful!

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Today we received the first sequences for our community barcoding analyses. From a MiSeq sequencer Run we obtained 32 million sequences of 2x300bp length (PE reads ~ 16 million). We will analyse over 20 GB of sequence data in the following weeks. Picture 1: A first look on the sequences shows that they have excellent […]

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Article GeneStream Project

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A short article on the GeneStream Project has just appeared in the Science Magazin of the Ruhr University, RUBIN. In the center of the article is the mesocosm experiment that we’ve just completed at the Felderbach. For Information (German and English) see below: http://rubin.rub.de/de/artenvielfalt-auf-dem-rueckmarsch http://rubin.rub.de/en/biodiversity-decline

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JASM Conference in Portland

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Some of us are in Portland (Oregon, USA) at the moment, participating in the large international  JOINT AQUATIC SCIENCES MEETING. Here, we present new scientific results in three talks and one poster. At the same time, the conference is perfect to meet many of our cooperation partners and friends and discuss ongoing and future project work. […]

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(Deutsch) Welttag der Biodiversität

Sorry, this entry is only available in German.

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Collaboration with the Leibniz Institute of Freshwater Ecology and Inland Fisheries (IGB)

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In collaboration with Dr. Xavier-François Garcia from the Leibniz Institute of Freshwater Ecology and Inland Fisheries (IGB, Berlin) all the chironomids (nonbiting midges) from the Breitenbach (Hesse) of 2013 and 2014 will be analysed as a part of the project on species diversity. As one of the rare taxonomic experts for chironomids, Dr. Xavier-François Garcia will identify all […]

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New Publikation

This week a new publication to which the GeneStream contributed appeared in the journal “Freshwater Biology”. Lead author of the conceptual paper is Steffen Pauls of the Biodiversity and Climate Research Center (Frankfurt a.M., Germany). In the publication, we outline the new developments in molecular methods and their potential for aquatic ecology. SU Pauls, M Alp, M […]

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Emergence traps at the Kleine Schmalenau

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Three emergence traps have been placed at the Kleine Schmalenau (NRW, Germany). Just like last year at the Breitenbach (s. Emergence trap Breitenbach) we aim to inventory the species diversity of aquatic insects for 1 year. In a second following step short genetic markers (DNA Barcodes) are generated for every single species. By using these short […]

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