Multi-species

To understand the importance of marine mammals in the St-Lawrence, it is necessary to gather informations concerning their feeding habits and the structure of the food web they belong to.

Are Gulf of St. Lawrence rorqual whales contaminated?

The St. Lawrence drains a heavily industrialized area, which explains the presence of numerous toxic contaminants. It has been demonstrated that beluga whales, which are permanent residents of the St....

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Can the great whales of the Estuary tell us where they are?

The St. Lawrence Estuary is an area where a good number of whales come to feed and where thousands of curious tourists converge to observe them. Is it possible to use sound to describe the critical ha...

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Do the whale-watching boats disturb whales?

In the St. Lawrence Estuary, nearly 50 whale-watching boats transport over 300 000 tourists onto the Estuary every year to encounter whales. Fin whales, blue whales, humpback whales and minke whales a...

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Is it possible to do a pregnancy test on free-ranging cetaceans?

The health of a given population resides, for the most part, in its ability to reproduce itself. The capacity to evaluate the gestation rate of adult females can therefore reveal a great deal about a ...

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What are the whale-watching boats doing?

It is essential that we get a better understanding of the behaviour of whale watching boats in order to manage this industry in the area between Tadoussac and Les Escoumins. Whale watch Photo credit :...

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What influences the accumulation of whale food in the Estuary?

Situated between Tadoussac and Les Bergeronnes, the head of the Laurentian Channel is one of the major plankton traps of the North Atlantic. Several species of whales come to feed in this area over th...

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What roles do marine mammals play in St. Lawrence ecosystems?

Marine mammals are basically predators, but their importance in marine ecosystems is often not well known. Information concerning marine mammal feeding habits and the structure of the food web they be...

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