Roberto Bertoni
 Associated researcher

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Roberto Bertoni is Associate Senior Scientist at CNR-ISE (National Research Council - Institute for the Study of Ecosystems) Verbania Pallanza.
He obtained the Degree in Biological Sciences at the University of Milan in 1971. Its field of interest is the Aquatic Microbial Ecology and, in particular, the spatial -temporal trend of particulate and dissolved organic matter and of the microbial assemblages. His activity is also addressed to the development of innovative tools to solve specific sampling problems (two patents) and to the application of image analysis techniques to quantify the microorganisms. The ultimate objective of his research is the study of the role of autotrophic and heterotrophic microorganisms in modifying the flow of energy and of organic matter in lakes. His research is developed through numerous international contacts which enabled him to study pristine environments (North Patagonian Andean lakes). He was responsible for the EU project MICOR for the evaluation of the UVB radiation effects on microbial communities. He collaborated in research activities in extreme environments in the Program EV-K2 and in the EU project MOLAR. He participated in the EU EMERGE project and collaborated in the EU project Euro-limpacs. He is engaged in students training and is support teacher in the PhD cycles of University of Parma, where he was external professor of Limnology (2004-2005).
Since 1990 he has been a member of the Scientific Council of the Italian Institute of Hydrobiology until 2002, when the Institute has joined the ISE. Since then he has been responsible for the Department of Ecology of Inland Waters until his termination in June 2005. In the period 1997 – 2012 he was coordinator of the research on the limnological evolution of Lake Maggiore, promoted by the International Commission for the Protection of Italian-Swiss waters (CIPAIS), and editor of the annual scientific reports. He is currently member of the coordinator board of CIPAIS and in charge of the Limnology section. From 2002 to 2008 he was Assistant Editor of the Journal of Environmental Engineering & Science of Research Board of Canada.
He was member of the Council Board of the Italian Society of Ecology (SitE) and of the Council Board of the Italian Association of Limnology and Oceanography (AIOL). He was involved in the Italian network for the Long Term Ecological Research (LTER) since its beginning as Member of Coordination Committee (till 2012). He was also coordinator of the Southern Alps Lakes LTER site (2005-2012). He has produced and maintained the website of ISE and of its Department of Verbania (formerly Italian Institute of Hydrobiology) in the period 1995- 2012, of AIOL website (1998-2015) and of the LTER Network Italy website (2006-2012).
He is national coordinator of the International Society of Limnology (SIL), manager of Italian section website (, and chair of the Organizing Committee of the 33rd SIL Congress (Torino, August 2016).
He was editor of the online version of Journal of Limnology (1998-2011) and since 2012 he is Editor in chief of Journal of Limnology.
He is author of over 130 scientific publications (Google Scholar), of which one third in journals with IF, of textobooks on limnology and of some popular science books. In 2015 he set up a museum of the ancient instruments of limnology, named "Crypta Baldi", hosted in the CNR ISE of Verbania. He has designed and maintains the website of the museum.

Recent Publications:


  • C Callieri, G Corno, M Contesini, D Fontaneto, R Bertoni. Transparent exopolymer particles (TEP) are driven by chlorophyll a and mainly confined to the euphotic zone in a deep subalpine lake. Inland Waters. 7: 118-127.


  • C Callieri, S Amalfitano, G Corno, R Bertoni. Grazing-induced Synechococcus microcolony formation: experimental insights from two freshwater phylotypes. FEMS Microbiology Ecology. online first DOI:
  • A Di Cesare, EM Eckert, S D'Urso, R Bertoni, DC Gillan, R Wattiez, G Corno. Co-occurrence of integrase 1, antibiotic and heavy metal resistance genes in municipal wastewater treatment plants. Water Research 94: 208-214.
  • Bertoni R, M Bertoni, G Morabito, M Rogora, C Callieri. A non-deterministic approach to forecasting the trophic evolution of lakes. Journal of Limnology 75(s1): 242-252


  • A Di Cesare, EM Eckert, A Teruggi, D Fontaneto, R Bertoni, C Callieri, G Corno. Constitutive presence of antibiotic resistance genes within the bacterial community of a large subalpine lake. Molecular ecology 24(15): 3888-3900.
  • C Callieri, R Bertoni. Organic carbon and microbial food web assemblages in an oligotrophic alpine lake. Journal of Limnology 58(2): 136-143.
  • R Bertoni. Solai e cantine dell’Idrobiologico a Pallanza. Gli antichi strumenti della scienza dei laghi. Edizioni Tararà, Verbania. 168 pp (in Italian).
  • C Callieri, S Hernández-Avilés, MM Salcher, D Fontaneto, R Bertoni. Distribution patterns and environmental correlates of Thaumarchaeota abundance in six deep subalpine lakes. Aquatic Sciences 1: 11.


  • C Callieri, R Bertoni, M Contesini, F Bertoni. Lake level fluctuations boost toxic cyanobacterial "oligotrophic blooms". PLoS one 9 (10), e109526
  • C Callieri, R Bertoni, M Contesini. Effetti ecologici delle fluttuazioni di livello nel Lago Maggiore. Atti dei Convegni dei Lincei 279: 147-156
  • M Manca, R Bertoni. Seventy five years of limnology at the Istituto Italiano di Idrobiologia in Pallanza. Journal of Limnology 73 S1
  • C Callieri, M Coci, EM Eckert, MM Salcher, R Bertoni. Archaea and Bacteria in deep lake hypolimnion: in situ dark inorganic carbon uptake. Journal of Limnology 73 S1


  • C Callieri, M Coci, G Corno, M Macek, B Modenutti, E Balseiro, R Bertoni. Phylogenetic diversity of nonmarine picocyanobacteria. FEMS Microbiology Ecology 85 (2), 293-301
  • AS Engel, MG Paoletti, M Beggio, L Dorigo, A Pamio, T Gomiero, C Furlan, R Bertoni. Comparative microbial community composition from secondary 1 carbonate (moonmilk) deposits: implications for the Cansiliella servadeii cave hygropetric food web. International Journal of Speleology 42 (3)


  • R Bertoni. La rete italiana per la ricerca ecologica a lungo termine (LTER–ITALIA). Aracne Editrice, Roma, 101-106
  • JS Hernandez-Aviles, R Bertoni, M Macek, C Callieri. Why bacteria are smaller in the epilimnion than in the hypolimnion? A hypothesis comparing temperate and tropical lakes. Journal of Limnology 71 (1), e10
  • C Callieri, E Caravati, G Corno, R Bertoni. Picocyanobacterial community structure and space-time dynamics in the subalpine Lake Maggiore (N. Italy). Journal of Limnology 71 (1), e9


  • C Callieri, A Lami, R Bertoni. Microcolony formation by single-cell Synechococcus strains as a fast response to UV radiation. Applied and environmental microbiology 77 (21), 7533-7540
  • R Bertoni, WH Jeffrey, M Pujo-Pay, L Oriol, P Conan, F Joux. Influence of water mixing on the inhibitory effect of UV radiation on primary and bacterial production in Mediterranean coastal water. Aquatic sciences 73 (3), 377-387
  • Z Buzás, M Brilly, S Koren, J Novak, Z Engi, R Mosello, R Bertoni. Transboundary Lakes and Rivers. Transboundary. Water Resources Management: A Multidisciplinary Approach, 155-219 2011
  • R Bertoni. A Surface Bloom Sampler (SUBS) for cyanobacteria and algae. Journal of Limnology 70 (2), 313-314
  • R Bertoni. Limnology of Rivers and Lakes. Limnology, Encyclopedia of Life Support Systems (EOLSS)


  • B Modenutti, E Balseiro, G Corno, C Callieri, R Bertoni, E Caravati. Ultraviolet radiation induces filamentation in bacterial assemblages from North Andean Patagonian lakes. Photochemistry and photobiology 86 (4), 871-881
  • R Bertoni, W Ambrosetti, C Callieri. Physical constraints in the deep hypolimnion of a subalpine lake driving planktonic Bacteria and Archaea distribution. Advances in Oceanography and Limnology 1 (1), 85-96
  • R Bertoni, C Callieri, G Corno, S Rasconi, E Caravati, M Contesini. Long-term trends of epilimnetic and hypolimnetic bacteria and organic carbon in a deep holo-oligomictic lake. Hydrobiologia 644 (1), 279-287
  • E Caravati, C Callieri, B Modenutti, G Corno, E Balseiro, R Bertoni. Picocyanobacterial assemblages in ultraoligotrophic Andean lakes reveal high regional microdiversity. Journal of plankton research 32 (3), 357-366


  • V Straškrábová, R Bertoni, M Blažo, C Callieri, L Forsström, J Fott. Structure of pelagic microbial assemblages in European mountain lakes during ice-free season. Advances in Limnology, 19-53
  • MB Navarro, B Modenutti, C Callieri, R Bertoni, E Balseiro. Balance between primary and bacterial production in North Patagonian shallow lakes. Aquatic ecology 43 (4), 867-878
  • C Callieri, G Corno, E Caravati, S Rasconi, M Contesini, R Bertoni. Bacteria, Archaea, and Crenarchaeota in the epilimnion and hypolimnion of a deep holo-oligomictic lake. Applied and environmental microbiology 75 (22), 7298-7300
  • G Corno, BE Modenutti, C Callieri, EG Balseiro, R Bertoni, E Caravati. Bacterial diversity and morphology in deep ultraoligotrophic Andean lakes: role of UVR on vertical distribution. Limnology and Oceanography 54 (4), 1098