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ST. LAWRENCE CENTRE

ORGANIZATION

Acting with Conviction

Acting on Research

Acting for the Future

Acting by Sharing Knowledge and Experience

Acting beyond Borders

Partners and Related Web Sites

SECTIONS

River Ecosystems Research

Scientific and Technical Services

State of the St. Lawrence Environment

PROGRAMS

Impacts of Water Level and Flow Fluctuations in the St. Lawrence River

Monitoring the State of the St. Lawrence

National Program

Long-Range Transport of Airborne Pollutants (LRTAP)

Urban Effluents

PROJECTS

Assessment of the Effects of Climate Change and Extreme Water-level Variations on Sensitive Uses of the St. Lawrence River

Background Concentrations of Contaminants in the St. Lawrence River Sediment

Community Involvement in Monitoring Invasive Plants in Lake Saint-Pierre

Community Relations

Contaminant Inputs to the St. Lawrence River at Cornwall and to the Ottawa River at Carillon

Dispersion of Urban Effluents in the St. Lawrence Estuary

Ecotoxicology of Biotechnology Products: The case of Bacillus thuringiensis

Ecotoxicology of Urban Effluents

Effects of Climatic Conditions and Fluctuating Water Levels on St. Lawrence River Wetlands

Effects of Extreme Water Levels on the Amphibians and Reptiles of the St. Lawrence River

Effects of Extreme Water Levels on Still-water Spawning Grounds in the Fluvial Section of the St. Lawrence River

Effects of Water Level and Flow Fluctuations in the St. Lawrence River on Fish Health

Environmental Chemistry of Urban Wastewater

Fish Monitoring at a Reference Site in the St. Lawrence River

Geochemical Characterization and Mixing Processes of Suspended Particulate Matter (SPM) in Lake Saint-François

Ice Dynamics in the Varennes–Sorel Fluvial Section

Impact of Agricultural Pesticides on the Health of Amphibian Populations

Impacts of Climate Change and Fluctuating Hydrological Regimes on Fish Communities of the St. Lawrence River

Impact of Climate Change on the Health of Amphibian Populations in the St. Lawrence River

Impacts of Urban Effluents on Fish Health

Influence of Water Levels on the Transport of Contaminants in the St. Lawrence River

Introduction of Non-Native Species into the St. Lawrence River and Assessment of Impacts on Biodiversity

Long-term Monitoring of Suspended Matter Contamination in Lake Saint-François

Monitoring Contamination in St. Lawrence Sediments

Monitoring Erosion of St. Lawrence Riverbanks

Monitoring Water Quality

Monitoring Wetland Vegetation

Presence of Pesticides in the St. Lawrence River and its Tributaries

Role of the Contamination of the Richelieu River in the Spawning Problems of the Copper Redhorse

Sources, Transport and Fate of Endocrine-disrupting Compounds in the St. Lawrence River

Temporal and Spatial Monitoring of Lakes in the LRTAP–Quebec Network

EXPERTISE

In the Laboratory

Geomatics

Research on River Ecosystems

LATEST UPDATE

ST. LAWRENCE INFO

Biological Resources

Non-native Species in the Great Lakes–St. Lawrence Basin

Pathological Problems in Lake Whitefish in the St. Lawrence River

Effects of Water Levels on Fish and Their Habitats

The Decline of the American Eel in the St. Lawrence River

Results of a Fish Monitoring Project at a Reference Site in the St. Lawrence River

Is Contamination Declining in St. Lawrence River Fish?

Chemical Contaminants Disrupt Reproductive Function in Male Fish in the St. Lawrence River

Parasites

Interactions between Pollution and Parasitism in Fish

Hormonal Disruptions in the Freshwater Mussels

The Influence of Water Levels on Zebra Mussel Colonization of the St. Lawrence River

Could Zebra Mussels Help to Monitor the Contamination of the St. Lawrence River?

Impact of Water-Level Fluctuations on Aquatic Plants

Wastewater as a Food Source in the Ecosystem

Wetlands

Wetlands of the St. Lawrence River: Habitats between Land and Water

Changing Surface Area of WetlandsAreal Extent and Map of Wetlands: Lake Saint-Louis, Boucherville Islands and Lake Saint-Pierre

Interactive Mapping of St. Lawrence Valley Wetlands

Monitoring Vegetation and Biodiversity in St. Lawrence Wetlands: Development of Integrated Indicators

Invasive Plants

Flowering Rush, Butomus umbellatus

Purple Loosestrife, Lythrum salicaria

Reed Canarygrass, Phalaris arundinacea

European Frog-bit, Hydrocharis morsus-ranae

Eurasian Watermilfoil, Myriophyllum spicatum

Common Reed, Phragmites australis

Invasion of Common Reed in the Boucherville Islands

Shorelines

Two-thirds of the banks between Montreal and the Berthier–Sorel archipelago are eroding

Uses

Potential Swimming Sites in the St. Lawrence River

Lake Saint-Louis at Risk?

Municipalities with Drinking Water Intakes in the St. Lawrence River and the des Prairies and des Mille Îles Rivers

Sportfishing in the St. Lawrence River

The Commercial Fisheries in the St. Lawrence River

Harvesting Shellfish from the St. Lawrence River

Pleasure Boating

Pleasure Boating on the River and Gulf of St. Lawrence

Pleasure Boating Infrastructure on the St. Lawrence River

St. Lawrence Cruises

Ferry Boats on the St. Lawrence

Environmental Issues Related to Pleasure Boating on the St. Lawrence

Commercial Navigation

The St. Lawrence River: Gateway to North America

Commercial Shipping Infrastructures on the River and Gulf of St. Lawrence

The Environment and Commercial Navigation on the St. Lawrence

Water and Sediments

Water

What Do You Know about the Hydrographic Divisions of the St. Lawrence River?

St. Lawrence Water Masses

What Effect Do Extreme or Prolonged Fluctuations in Water Levels in the St. Lawrence River Have on Environmental Components and Uses?

Flows of the St. Lawrence River and Its Main Tributaries

The St. Lawrence River Compared to the World’s Major Rivers

The St. Lawrence River and Climate Warming

The St. Lawrence Fluvial Lakes

Water Quality Monitoring in the Fluvial Section: Toxic Substances

Monitoring the Water Quality in the Fluvial Section: Physico-chemical and Bacteriological Parameters

Pesticides are Entering the St. Lawrence River through Its Tributaries

Are Urban Effluents Responsible for Metal Contamination on the St. Lawrence River?

Sediments

Sediment Dynamics in the St. Lawrence River

Surface Sediments in Lake Saint-François: Contamination on the Decline

The Sedimentary History of Lake Saint-Pierre Revisited and Rectified

Tracking Polybrominated Diphenyl Ethers (PBDEs), New Chemical Contaminants in the Environment

EVENTS

Calendar of Events

Innovators Program

PUBLICATIONS

Documentation Centre

Selected Publications

GLOSSARY

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