| Title | Responses to local and global stressors in the large southern perialpine lakes: Present status and challenges for research and management |
| Abstract | Here, we review the state-of-the-art of limnological investigations in the large and deep lakes south of the Alps (DSLs), lakes Garda, Maggiore, Como, Iseo and Lugano. In the pre-industrial age, these lakes were ultra- or oligotrophic. Increasing anthropogenic pressure and the impact of global warming has led to an acceleration of eutrophication and a decrease in the frequency of full mixing episodes, which have induced a state of meromixis in lakes Lugano and Iseo. In the last two decades, other changes have been identified, including fundamental variations in the long-term dynamics and structure of phytoplankton communities, identification of new toxigenic cyanobacteria and cyanotoxins, increases in the introduction and establishment of allochthonous species, and continuous detection of new, emerging chemical pollutants. Overall, these fundamental changes are quickly transforming the features of the DSLs. The ability to document and reconstruct changes in lake aquatic biota and micropollutants was strongly dependent on both research efforts and the availability of technologies to appraise these changes. In this context, the ongoing adoption of new technological tools, such as high-frequency monitoring and high throughput sequencing, is opening the way to a new level of comprehension of physical, chemical and biological processes, and aquatic biodiversity. New outlooks and new conceptual frameworks are necessary to cope with the huge dimensions of high-throughput data and analysis of big data. |
| Source | Journal of Great Lakes research |
| Keywords | Allochthonous speciesDeep perialpine lakesEutrophicationLake warmingMicropollutantsToxigenic cyanobacteria |
| Journal | Journal of Great Lakes research |
| Editor | International Association for Great Lakes Research., s.l., Canada |
| Year | 2020 |
| Type | Articolo in rivista |
| DOI | 10.1016/j.jglr.2020.01.017 |
| Authors | Salmaso, Nico; Buzzi, Fabio; Capelli, Camilla; Cerasino, Leonardo; Leoni, Barbara; Lepori, Fabio; Rogora, Michela |
| Text | 420919 2020 10.1016/j.jglr.2020.01.017 Scopus 2 s2.0 85079558287 Allochthonous species Deep perialpine lakes Eutrophication Lake warming Micropollutants Toxigenic cyanobacteria Responses to local and global stressors in the large southern perialpine lakes Present status and challenges for research and management Salmaso, Nico; Buzzi, Fabio; Capelli, Camilla; Cerasino, Leonardo; Leoni, Barbara; Lepori, Fabio; Rogora, Michela Istituto di Ricerca sulle Acque, Italy; Scuola Universitaria Professionale della Svizzera Italiana; Istituto Agrario San Michele all Adige; University of Milano Bicocca; ARPA Lombardia Here, we review the state of the art of limnological investigations in the large and deep lakes south of the Alps DSLs , lakes Garda, Maggiore, Como, Iseo and Lugano. In the pre industrial age, these lakes were ultra or oligotrophic. Increasing anthropogenic pressure and the impact of global warming has led to an acceleration of eutrophication and a decrease in the frequency of full mixing episodes, which have induced a state of meromixis in lakes Lugano and Iseo. In the last two decades, other changes have been identified, including fundamental variations in the long term dynamics and structure of phytoplankton communities, identification of new toxigenic cyanobacteria and cyanotoxins, increases in the introduction and establishment of allochthonous species, and continuous detection of new, emerging chemical pollutants. Overall, these fundamental changes are quickly transforming the features of the DSLs. The ability to document and reconstruct changes in lake aquatic biota and micropollutants was strongly dependent on both research efforts and the availability of technologies to appraise these changes. In this context, the ongoing adoption of new technological tools, such as high frequency monitoring and high throughput sequencing, is opening the way to a new level of comprehension of physical, chemical and biological processes, and aquatic biodiversity. New outlooks and new conceptual frameworks are necessary to cope with the huge dimensions of high throughput data and analysis of big data. Published version http //www.scopus.com/record/display.url eid=2 s2.0 85079558287 origin=inward Articolo in rivista International Association for Great Lakes Research. 0380 1330 Journal of Great Lakes research Journal of Great Lakes research J. Great Lakes res. michela.rogora ROGORA MICHELA |
