G
Gary Free
Researcher at National Research Council
Publications - 31
Citations - 612
Gary Free is an academic researcher from National Research Council. The author has contributed to research in topics: Environmental science & Water Framework Directive. The author has an hindex of 13, co-authored 24 publications receiving 469 citations. Previous affiliations of Gary Free include United States Environmental Protection Agency.
Papers
More filters
Journal ArticleDOI
A phytoplankton trophic index to assess the status of lakes for the Water Framework Directive
Geoff Phillips,Anne Lyche-Solheim,Birger Skjelbred,Ute Mischke,Stina Drakare,Gary Free,Marko Järvinen,Caridad de Hoyos,Giuseppe Morabito,Sandra Poikane,Laurence Carvalho +10 more
TL;DR: The plankton trophic index as mentioned in this paper was developed in the WISER EU FP7 project and has been used to compare national phytoplankton classification systems in Northern and Central Europe.
Journal ArticleDOI
A biotic index using benthic macroinvertebrates for Italian lakes
Bruno Rossaro,Laura Marziali,Ana Cristina Cardoso,Angelo G. Solimini,Gary Free,Roberto Giacchini +5 more
TL;DR: A significant correlation was observed between trophic status and the benthic quality index and a good agreement was also observed between the indexes calculated using the large database and the second dataset on small lakes.
Journal ArticleDOI
Modelling lake macroinvertebrate species in the shallow sublittoral: relative roles of habitat, lake morphology, aquatic chemistry and sediment composition
Gary Free,Angelo G. Solimini,Bruno Rossaro,Laura Marziali,Roberto Giacchini,Bruno Paracchini,Michela Ghiani,Stefano Vaccaro,Bernd Manfred Gawlik,Roswitha Fresner,Georg Santner,Michael Schönhuber,Ana Cristina Cardoso +12 more
TL;DR: In this paper, the relative importance of environmental variables in explaining macroinvertebrate abundance was examined in 45 sub-alpine lakes were sampled for macroinvetebrates in the shallow sublittoral.
Journal ArticleDOI
Deriving nutrient criteria to support 'good' ecological status in European lakes: An empirically based approach to linking ecology and management.
TL;DR: A novel methodological approach is introduced - a set of four different methods that can be applied to different ecosystems and stressors to derive empirically-based management targets and link ecological status of macrophyte communities to nutrient criteria in a user-friendly and transparent way.
Journal ArticleDOI
Phytoplankton indicator taxa for reference conditions in Northern and Central European lowland lakes
Marko Järvinen,Stina Drakare,Gary Free,Anne Lyche-Solheim,Geoff Phillips,Birger Skjelbred,Ute Mischke,Ingmar Ott,Sandra Poikane,Martin Søndergaard,Agnieszka Pasztaleniec,Jeroen Van Wichelen,Robert Portielje +12 more
TL;DR: In this article, the authors used phytoplankton data from 606 lakes to characterize indicator taxa of near-pristine reference conditions in clearwater and humic lowland lakes of Northern and Central Europe.