The majestic St. Lawrence River, a jewel of economic, historical and environmental importance, reminds us of the need to preserve this essential ecosystem.
(Ludovic Pascal)
The waters of the St. Lawrence are running out of breath and bottom-dwelling organisms are already feeling the effects. Here’s how ecosystems are reacting.
The industrialization of the fishing industry and changes in the environment have raised many issues about the management of our fisheries.
(Fanny Fronton)
Fanny Fronton, Institut national de la recherche scientifique (INRS)
Blood isn’t sterile, and analyzing the bacteria in it could help assess the health of fish and prevent the collapse of their populations.
Not only do corals inhabit the cold waters of the St. Lawrence, but the species that holds the title of largest marine invertebrate on the planet is present at the entrance to the Gulf.
(Fisheries and Oceans Canada)
In the vast St. Lawrence River, an impressive variety of animals live on the seabed. This group of organisms is called benthos or benthic invertebrates.
Drones have allowed researchers to learn more about marine mammals.
(Jaclyn Aubin / GREMM)
Drones are a new technology that help researchers observe and record whale behaviours from a distance. But if the drones are flown too low, they change the whales’ behaviour.
The warming of the Gulf of St. Lawrence is causing upheaval in the balance of species, with direct repercussions on the commercial fishing sector.
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The warming observed in the Gulf of St. Lawrence is causing upheaval in the balance of the species living there. That is having direct repercussions on the commercial fishing sector.
Waves breaking on the shore of Étang-du-Nord, Magdalen Islands, during post-tropical storm Fiona on Sept. 24, 2022.
CANADIAN PRESS/Nigel Quinn
Storm Fiona caused a lot of property damage and erosion on the Canadian coast. But its effects are also felt in the depths of the Gulf of St. Lawrence.
Ballast water discharge from transoceanic ships introduces invasive species to the Great Lakes.
(Shutterstock)
The St. Lawrence is one of the most difficult rivers in the world to navigate. It has been the site of collisions, groundings and shipwrecks. Several thousand wrecks lie beneath its surface.
The O d'écH2osystème is a wheel four meters in diameter that can be attached by crane to the deck of a ship, a wharf or the banks of the small and large municipalities along the shores of the St. Lawrence River.
(Geneviève Dupéré)
This article crosses from the river to the stage, to explore the St. Lawrence at the meeting point of marine and freshwater sciences, the fishing, maritime and port industries, and the circus arts.
Maritime transport in the St. Lawrence must adapt to climate change by adopting smart, sustainable and decarbonizing technologies.
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The maritime and port industries are integrating climate change into their business models and introducing different adaptive measures.
A study suggests that the best practice is to eat the muscle, heart, and liver from weaned seals that are less than six weeks old.
(Pierre-Yves Daoust)
Choose the meat, liver and heart of young grey seals (less than six weeks old) and apply standard sanitary measures when handling seals and their products.
Algae in the St. Lawrence River. The cold waters of Québec are conducive to their growth.
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The abundance, versatility and quality of seaweed from the St. Lawrence makes this resource a real asset for Québec. We must now integrate it into our kitchens.
UV absorbents and industrial antioxidants can reach aquatic environments through the degradation of plastics, or via wastewater treatment plant effluents.
(Environment and Climate Change Canada)
UV absorbents and industrial antioxidants are used in many household goods to protect them from UV radiation. They can have an adverse impact on ecosystems.
The round goby is an invasive fish that has become established in the St. Lawrence River over the past two decades, following its introduction into the Great Lakes.
(Cristina Charette)
Wetlands can help limit the spread of the voracious round goby, an invasive species that has infiltrated the Great Lakes and has become widespread in the St. Lawrence River.
A container ship moves up through the winter ice in the St. Lawrence River, near the Port of Montréal. Approximately 8,000 merchant vessels travel the St. Lawrence annually. The importance of the river in all aspects of the economy is enormous and is expected to increase in the years to come.
(Shutterstock)
Approximately 8,000 merchant vessels travel the St. Lawrence each year. Its ports have become the catalysts that link trade, development and industrial innovation.
Riverbanks are reinforced to reduce flood risks, but these techniques reduce biodiversity and limit public accessibility.
(Shutterstock)
The sustainable and inclusive development of the St. Lawrence River is essential. A prolonged laissez-faire attitude will have harmful consequences on people and the environment.
Local communities, researchers, governments and businesses are working together to identify coastal erosion risks and find sustainable solutions.
(Shutterstock)
Jacob Stolle, Institut national de la recherche scientifique (INRS) and Damien Pham-Van-Bang, Institut national de la recherche scientifique (INRS)
Coastal erosion along the St. Lawrence River has economic, social and cultural impacts.
A study showed that an endangered population of beluga whales in the St. Lawrence River had one of the world’s highest concentrations of the flame retardant, PBDE, in their blubber.
(Shutterstock)
Cédric Chavanne, Université du Québec à Rimouski (UQAR); Daniel Bourgault, Université du Québec à Rimouski (UQAR), and Dany Dumont, Université du Québec à Rimouski (UQAR)
Popular belief suggests the highest tides in the St. Lawrence River are reached around the equinoxes. In truth, they arrive close to the solstices.
A spectacular sunset, near Rimouski.
(Shutterstock)
The tourist appeal of the St. Lawrence River dates to the 19th century. Residents and summer visitors have rubbed shoulders ever since, but not necessarily shared the same ideas about its attractions.