A5089328289- Marine and coastal ecosystems
- Microbial Community Ecology and Physiology
- Fish Ecology and Management Studies
- Water Quality and Pollution Assessment
- Isotope Analysis in Ecology
- Soil and Water Nutrient Dynamics
- Freshwater macroinvertebrate diversity and ecology
- Pharmaceutical and Antibiotic Environmental Impacts
- Aquatic Ecosystems and Phytoplankton Dynamics
- Hydrology and Watershed Management Studies
- Food Industry and Aquatic Biology
Université du Québec à Montréal
2015-2024
McGill University
2004
Abstract Export of carbon (C) from watersheds represents a key component local and regional C budgets. We explored the magnitude, variability, drivers inorganic, organic, total exports 83 temperate catchments in southern Québec, Canada. The average dissolved inorganic (DIC), organic (DOC), (TC) these were 4.6, 5.1, 10.2 g m −2 yr −1 , respectively. Multiple regression models, using combination topographical variables (catchment area, shape, slope), along with land cover (%vegetation,...
Abstract Understanding controls on primary productivity is essential for describing ecosystems and their responses to environmental change. In lakes, pelagic gross (GPP) strongly controlled by inputs of nutrients dissolved organic matter. Although past studies have developed process models this nutrient‐color paradigm (NCP), broad empirical tests these are scarce. We used data from 58 globally distributed, mostly temperate lakes test such a model improve understanding prediction the lake...
Experimental removal of early instar black fly larvae from 3 oligotrophic lake-outlet streams in southern Quebec showed that reduced phytoplankton biomass, but had little effect on bacterioplankton biomass. The rates decline and biomass with distance downstream 6 lake outlets were determined before the insecticide Bacillus thuringiensis var. israelensis was used to remove streams. measured again after removed, differences between as indicators ingestion by larvae. proportion ingested/m...
Click to increase image sizeClick decrease sizeKey words: DOC releasefreshwatersmacrophytes