{"id":491,"date":"2015-01-12T10:27:35","date_gmt":"2015-01-12T10:27:35","guid":{"rendered":"https:\/\/www.husek.hr\/?page_id=491"},"modified":"2022-11-30T10:08:30","modified_gmt":"2022-11-30T10:08:30","slug":"past-events","status":"publish","type":"page","link":"https:\/\/www.husek.hr\/en\/past-events\/","title":{"rendered":"PAST EVENTS"},"content":{"rendered":"

Croatian association of freshwater ecologists<\/strong> invites you to a talk entitled Elemental bio-imaging at the nanoscale with Nano Secondary Ion Mass Spectrometry (NanoSIMS): technique and applications<\/strong> that will be held on Tuesday, December 3, 2019 in the lecture room BO1 , at the Department of Biology, Faculty of Science, Rooseveltov trg 6, by our guest speaker Prof. dr. Dirk Schauml\u00f6ffel<\/strong> (CNRS, France)<\/p>\n

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Abstract<\/strong><\/p>\n

The lecture gives an introduction to the imaging of chemical elements in biological cells and tissues at the nanoscale which can help to investigate biosorption and bioaccumulation processes at cellular and subcellular level. Scientific progress in this field is directly related to new instrumental and methodological analytical developments. Nano secondary ion mass spectrometry (NanoSIMS) is an analytical technique which relies on the sputtering of ions from a solid surface by focused positive or negative primary ion beams and the subsequent analysis of the produced secondary ions by a mass spectrometer under high vacuum. NanoSIMS allows chemical imaging of a sample surface with lateral resolution below 50 nm combined with high sensitivity and thus it is perfectly suited to localize the distribution of chemical elements with high spatial resolution in biological samples. Advantages and challenges of NanoSIMS bioimaging of chemical elements at nanometer level will be discussed. Recent examples from our laboratory will be presented showing different applications where NanoSIMS element bioimaging can be used.<\/p>\n

Dirk Schauml\u00f6ffel has been a research professor at the French National Center for Scientific Research (CNRS) since 2011 working at the Institute of Analytical Sciences and Physicochemistry for Environment and Materials at the University of Pau (France). His scientific research focuses on analytic-chemical developments for essential and toxic trace elements in biological organisms. One of his main activities includes trace element imaging in biological cells and tissue at nanometer level by nano secondary ion mass spectrometry (NanoSIMS) with applications in environment, biomedicine and toxicology. He graduated in chemistry from the Philipps-Universit\u00e4t Marburg in Germany where he obtained his doctorate (Dr. rer. nat.) in 1995. After leaving the University of Marburg he continued his academic career as research scientist at the GKSS Research Center in Geesthacht, Germany, and in 2003 he entered the CNRS in France. From the University of Pau he obtained his habilitation in analytical chemistry and the title of a professor. Furthermore, Dirk Schauml\u00f6ffel is Editor-in-Chief of the Journal of Trace Elements in Medicine and Biology, <\/em>General Secretary of the Federation of European Societies on Trace Elements and Minerals<\/em> (FESTEM), and President of the German Society for Minerals and Trace Elements<\/em> (GMS).<\/p>\n

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Croatian association of freshwater ecologists organized a talk entitled GLOBE Program and the connection with NASA satellites<\/strong> that was held on Wednesday, October 30, 2019 at 10:00<\/strong> AM<\/strong> in the lecture room Vije\u0107nica, at the Department of Biology, Faculty of Science, Rooseveltov trg 6, by our guest speaker Peter Falcon, <\/strong>our guest speaker from NASA\u2019s Jet Propulsion Laboratory in Pasadena California USA. <\/strong>Peter is an Earth Science Education and Communication Specialist. He has worked at NASA\/JPL for over 26 years, and supports multiple Earth Observing satellites. He is also a GLOBE Program partner and master trainer in atmosphere. He enjoys traveling, sports and would like to someday grow his hair back. \ud83d\ude42<\/p>\n

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Abstract<\/strong><\/p>\n

Peter will give an overview of the GLOBE Program and the connection with NASA satellites. He will also discuss how NASA study\u2019s our planet, the sun, the solar system, and Mars exploration. And is looking forward to an informal discuss with students on NASA science and engineering.<\/p>\n

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Croatian association of freshwater ecologists organized a talk entitled Long-term effects of pharmaceutically active compounds PhAC on cardiac activity and locomotion of signal crayfish Pacifastacus leniusculus<\/em><\/strong> that was held on Tuesday, October 15, 2019 at 14:30<\/strong> (2.30 PM)<\/strong> in the lecture room Vije\u0107nica, at the Department of Biology, Faculty of Science, Rooseveltov trg 6, by our guest speaker Filip Lo\u017eek, <\/strong>a PhD student from the University of South Bohemia, Faculty of fisheries and protection of waters, \u010cesk\u00e9 Bud\u011bjovice, Czech Republic.<\/p>\n

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Abstract<\/strong><\/p>\n

Environmental pollution by pharmaceutically active compounds (PhACs) is increasingly recognized as a major threat to the aquatic environment. The presence of PhACs in the aquatic environment is not associated with acute toxicity but can impact physiology, resulting in behaviour alterations in non-target organisms followed by ecological impact as disturbance of predator-prey relationships. To detect these etho-physiological alterations we investigate long-term effects of selected PhAC (Tramadol, Methamphetamine) at environmentally relevant levels through evaluation of cardiac activity and locomotion of signal crayfish Pacifastacus leniusculus during acute stress. We use crayfish as a model of non-target organisms which are among freshwater crustaceans, particularly susceptible to PhACs. They possess a complex physiology and exhibit complex intraspecific interactions and are keystone species in freshwater ecosystems, functioning as strong ecosystem engineers. Previous studies of PhACs effect on aquatic organisms at environmentally relevant concentrations have been primarily focused on their behaviour. The recorded effects on crayfish cardiac physiology could present a new area of research in relation to PhaC residue environmental impact.<\/p>\n

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Croatian association of freshwater ecologists organized a talk entitled Zooplankton as a tool in environmental analyses<\/em><\/strong> that was held on October 10, 2019 <\/strong>in the lecture room BO1, at the Department of Biology, Faculty of Science, Rooseveltov trg 6 by our guest speaker prof. dr. sc. Natalia Kuczy\u0144ska-Kippen, <\/strong>Full professor at the Department of Water Protection, Faculty of Biology, Adam Mickiewicz University in Pozna\u0144.<\/strong><\/p>\n

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Prof. dr. sc. Kuczy\u0144ska-Kippen teaches courses related to ecology, aquatic sciences and methods of environmental assessment. Her field of scientific activity refers to ecology and environmental sciences, particularly the functioning of macrophyte-dominated water bodies, the indicative role of plankton, methods for assessing environmental conditions of ponds using zooplankton. Professor Kuczy\u0144ska-Kippen has published over 100 scientific and expert papers, 3 books, 28 book chapters and participated at more than 100 national and international scientific conferences, having over 200 presentations. She prepared 30 expertise and other studies commissioned by public institutions or entrepreneurs and participated in 16 projects in total, among which she was a leader of research teams in six projects received in national or international competitions.<\/p>\n

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Queen Mary University of London Field workshop<\/p>\n

For the fifth year in a row, Croatian Association of Freshwater Ecologists organized a field workshop in the field of freshwater ecology for students of the Queen Mary University of London, UK. The workshop will be held from April 1 to April  13, 2019 in cooperation with the Department of Biology, Faculty of Science, at the Ecological Station Vrlika. The workshop will be attended by 39 students and 4 teachers of the Queen Mary University of London, and held by 17 members of our Association.<\/p>\n

[huge_it_gallery id=”15″]<\/p>\n

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3rd Symposium on Freshwater Biology (SOBS)<\/a><\/p>\n

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LECTURES  (January 25th 2019)<\/p>\n

SUMMARY<\/p>\n

The \u201csuperfruits\u201d gooseberries (Ribes uva-crispa L<\/em>.) and black currants (Ribes nigrum L<\/em>.) have fascinating potential for culinary- and health sciences. The berries are used for a large variety of products, like juices and jams, and are in folk medicine known for constitutional effects for various ailments, due to their huge range of healthy substances, such as vitamin C. Nevertheless, little is known about the reproductive and pollination biology of these plants.
\nIn my bachelor thesis I investigated the impact of flower visitors on the fruit set of black currants and gooseberries using bagging experiments. In addition to this, I created visitor statistics of the flower visitors by personally observing the plants and analysed their floral scent using thermal desorption gas chromatography and mass spectrometry. Finally, I determined which volatiles of the scent are active in the insect\u2019s antennae by conducting chromatography coupled to electroantennographic detection. The results showed that the gooseberry plant mostly relies on visiting insects for pollination, while the black currant is capable of self-pollination. Nevertheless, pollinators significantly improved fruit set for both species. Flower visitors of 13 different species were found on gooseberries and 21 different species on black currants. The scent analysis revealed 23 compounds in Ribes uva-crispa and 40 compounds in Ribes nigrum. Most of the volatiles of the bouquet were active in the antennae of the tested bees and showed very slight differences among bee species. Therefore, I concluded that these volatiles play an important role in the attraction of the pollinators.<\/p>\n

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Presenting international project \u201eThe balance between nutrients, hydrodynamics and macrophytes in the freshwater ecosystem\u201c<\/strong><\/p>\n

On Thursday, November 22nd <\/sup>2018 at 10 AM, in the lecture room Vije\u0107nica, at the Department of Biology, Faculty of Science, Rooseveltov trg 6, Zagreb, Croatian association of freshwater ecologists supported the presentation of the international project entitled \u201eThe balance between nutrients, hydrodynamics and macrophytes in the freshwater ecosystem\u201c. Our esteemed guests are close project-partners of our colleague Prof. dr. sc. Maria \u0160poljar, and they arrived from the Tianjin University, China. The guests presented two interesting lectures.<\/p>\n

Prof. dr. sc. Xueping Gao (Department of Hydraulic and Hydropower Engineering, Tianjin University, China) held the first lecture entitled \u201cWater environment management of landscape waters\u201d, whereas dr. sc. Chen Zhang (Associate Professor at the Department of Hydraulic and Hydropower Engineering Tianjin University, China) presented a talk entitled \u201cHow well does the mechanistic water quality model represent biogeochemical responses to climatic and hydrologic forcing?\u201d. Thanks to our guests for interesting lectures \u2013 it was nice meeting them!<\/p>\n

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Queen Mary University of London Field workshop (<\/strong>April 4 to April 16, 2018)<\/strong><\/p>\n

Croatian Association of freshwater ecologists organized another field workshop in the field of freshwater ecology for students of the Queen Mary University of London, UK. The workshop was held from April 4 to April  16, 2018 in cooperation with the Department of Biology, Faculty of Science, at the Ecological Station Vrlika. The workshop was attended by 54 students and 4 teachers of the Queen Mary University of London, and it was held by 17 members of our Association.
\nWe are glad that (for the fourth year in a row) students share their positive experience from our field workshop \u2013 even within UK:<\/p>\n

https:\/\/www.qmul.ac.uk\/geog\/news\/2017\/items\/environmental-scientists-learn-about-ecological-interactions-in-croatia-.html<\/a><\/p>\n

h<\/a>ttps:\/\/blogs.studentlife.qmul.ac.uk\/tag\/environmentalscience-croatia\/<\/a><\/p>\n

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\"\"<\/a>Carbon Dioxide Capture and Storage<\/strong><\/p>\n

Croatian association of freshwater ecologists organized a talk entitled \u201cCarbon Dioxide Capture and Storage\u201d that was held on Friday, October 27, 2017 at 12:00 in the Library of the Division of Zoology (Department of Biology, Faculty of Science, Rooseveltov trg 6, Zagreb) by our guest speaker Mateusz Werner from the Wroclaw University of Technology (Wroclaw, Poland). Mateusz was an IAESTE-intern at the Division of Zoology, Department of Biology, Faculty of Science, University of Zagreb, supervised by M. Serti\u0107 Peri\u0107.<\/p>\n

In his talk, Mateusz tackled the following topics:<\/p>\n