Search

Université de Montréal Dataverse Logo
Metadata for: Ecosystem and mixoplankton responses to pulsed allochthonous inputs to lake mesocosms
Borealis
Hughes, Riley; Sarran, Charlie; Harvey, Eric; Beisner, Beatrix E. — 2024-09-03 The research objective was to understand ecosystemic responses to different types and schedules of allochthonous inputs, with a focus on the autotrophic and mixotrophic (bacterivory) responses of nanophytoplankton to such events. We conducted a mesocosm experiment in the summer of 2022 in which we added organic matter as pulses, either through insect larvae, tree leaves or a combination of both to in-lake mesocosms (Lac Triton, Station de biologie des Laurentides). A range of response variables was sampled to capture ecosystem metabolism, community composition, and the relative contributions of autotrophic, heterotrophic and mixotrophic activities.
SLGO Data Catalogue Logo
Portrait of Plastic Pollution in Eastern Canada: From the Great Lakes to Newfoundland
Organisation Bleue / Organisation Bleue
Asselin, Anne-Marie; Martel, Laurence; Sarran, Charlie; Gagnon, Philippe-Olivier — 2019-06-06 The increase in the occurrence of plastic pollution in the environment of the St. Lawrence watershed in recent decades makes it imperative to take a systemic approach to managing plastic pollution in Eastern Canada. A comprehensive assessment of the prevalence of plastic products in the environment was carried out to better understand the phenomenon and improve the available assessment methods. Among the items most found during cleaning activities, the organization was able to notice the abundance of cigarette butts, various pieces of plastic, plastic bottles, and multiple plastic packaging. These observations lead us to reiterate the insidious impact of plastic in the St. Lawrence and Atlantic ecosystems. Various environmental stresses, such as environmental contamination, contribute to the overall degradation of the coastal environment in Eastern Canada. These effects remain largely misunderstood and, therefore, ignored during environmental impact assessments, which remain focused on unique species or sectors or the approval of projects. As for the major brands most often listed, the study aims to measure the impact of extended producer responsibility. The organization was able to observe an increased presence of packaging from Nestlé, Tim Hortons, PepsiCo, and several others, which demonstrates the locality of the issue in Canada. This also opens the possibility of better identifying extended producer responsibility in the solutions to be considered for the future. Through these objectives, our project proves the importance of uniting, raising awareness about the challenges of plastic pollution, and thoroughly documenting the impacts to guide our future actions better and, at the same time, encourage action. For more information on the production database method, refer to the report Portrait of Plastic Pollution: In Eastern Canada from the Great Lakes to Newfoundland. L'augmentation de l'occurrence de la pollution plastique dans l’environnement du bassin hydrographique Saint-Laurent dans les dernières décennies, rend impérative une approche systémique pour la gestion de la pollution plastique dans l’Est du Canada. Une évaluation exhaustive de la prévalence des produits en plastique dans l’environnement a été réalisée afin de mieux comprendre le phénomène et d’améliorer les méthodes d’évaluation disponibles. Parmi les items les plus retrouvés durant les activités de nettoyage, l’organisme a pu remarquer l’abondance de mégots de cigarette, de divers morceaux de plastiques, de bouteilles en plastique, et de multiples emballages plastiques. Ces constats amènent à réitérer l’impact insidieux du plastique dans l’écosystème du Saint-Laurent et de l’Atlantique. Divers stress environnementaux, tels que la contamination de l'environnement, contribuent à la dégradation globale de l’environnement côtier de l’Est du Canada. Ces effets demeurent largement incompris et conséquemment ignorés lors d’évaluations d’impacts environnementaux, qui demeurent orientées sur des espèces ou des secteurs uniques ou encore l’approbation de projets. Quant aux grandes marques les plus souvent répertoriées, l’étude vise à mesurer l’impact de la responsabilité élargie des producteurs. L’organisme a pu observer une présence accrue d’emballages Nestlé, Tim Hortons, PepsiCo et plusieurs autres, ce qui démontre la localité de l’enjeu au Canada. Ceci ouvre également la possibilité de mieux cerner la responsabilité élargie des producteurs dans les solutions à envisager pour le futur. À travers ces objectifs, notre projet prouve l’importance de s’unir, de sensibiliser la population aux enjeux de la pollution plastique et de documenter de manière approfondie les impacts afin de mieux orienter nos actions futures et, du même coup, d'inciter à l'action. Pour plus d’informations sur la méthode de production de la base de données, référez-vous au rapport Portrait de la pollution plastique : Dans l’Est du Canada des Grands Lacs jusqu’à Terre-Neuve. https://creativecommons.org/licenses/by/4.0/

Map search instructions

1.Turn on the map filter by clicking the “Limit by map area” toggle.
2.Move the map to display your area of interest. Holding the shift key and clicking to draw a box allows for zooming in on a specific area. Search results change as the map moves.
3.Access a record by clicking on an item in the search results or by clicking on a location pin and the linked record title.
Note: Clusters are intended to provide a visual preview of data location. Because there is a maximum of 50 records displayed on the map, they may not be a completely accurate reflection of the total number of search results.

(Author: Sarran, Charlie)

Limit by:

Clear all

to