Sainte-Rose stream is a short but magnificent stream of a length of approximately 2,3 kilometers, located at the west of Ste-Rose Golf. It rises behind Poly-Jeunesse school, at the south of Calvi park. It ends in the Mille-Îles river (at the north) after crossing a territory that remains mostly untouched along Des Charmes street.
Along the course of the river, there are a few silver maple stands and cattail marshes with a thick organic soil, as well as a mature forest stand that shelters a maple sugar bush. Its great ecological value led it to be included in the Special ecological planning zone (also known as ZAEP) of Mattawa.
Sainte-Rose stream has a great arborescent tree canopy along its entire length and offers a large diversity of substrates and hab itats for the abudant wildlife of the area. We can find there one of the most important diversities of birds of Laval1, the recurring presence of white-tailed deer as well as snapping turtles. Nonetheless, despite these positive elements, Sainte-Rose stream displays a very weak diversity of fish species and benthic macroinvertebrates. In addition, documented aquatic species are all dependent of a water of poor quality that demonstrates the major pollution caused by fecal coliforms, suggesting there is an issue with overflow events.
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