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Article

Biodiversity and Habitat Assessment of Coastal Benthic Communities in a Sub-Arctic Industrial Harbor Area

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Institut des Sciences de la Mer, Université du Québec à Rimouski, 300 Allée des Ursulines, Rimouski, QC G5L 3A1, Canada
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Québec-Océan, Université Laval, 1045 Avenue de la Médecine, Québec City, QC G1V 0A6, Canada
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Takuvik Joint UL/CNRS Laboratory, Université Laval, 1045 Avenue de la Médecine, Québec City, QC G1V 0A6, Canada
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Maurice Lamontagne Institute, Fisheries and Oceans Canada, 850 Rue de la Mer, Mont-Joli, QC G5H 3Z4, Canada
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Département de biologie, Université Laval, 1045 Avenue de la Médecine, Québec City, QC G1V 0A6, Canada
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Département de biologie, chimie et géographie, Université du Québec à Rimouski, 300 Allée des Ursulines, Rimouski, QC G5L 3A1, Canada
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Author to whom correspondence should be addressed.
Water 2020, 12(9), 2424; https://doi.org/10.3390/w12092424
Received: 10 July 2020 / Revised: 9 August 2020 / Accepted: 24 August 2020 / Published: 28 August 2020
Coastal ecosystems face increasing anthropogenic pressures worldwide and their management requires a solid assessment and understanding of the cumulative impacts from human activities. This study evaluates the spatial variation of benthic macrofaunal communities, sediments, and heavy metals in the sub-Arctic coastal ecosystems around Sept-Îles (Québec, Canada)—a major port area in the Gulf of St. Lawrence. Physical sediment properties varied in the studied area, with a general sandy-silty profile except for specific locations in Baie des Sept Îles where higher organic matter and heavy metal concentrations were detected. Macrofaunal assemblages were evaluated for two taxa size classes (organisms > 0.5 mm and > 1 mm) and linked to habitat parameters using regression models. Communities of smaller organisms showed signs of perturbation for one assemblage close to industrial activities at Baie des Sept Îles, with an increased number of tolerant and opportunistic species, contrasting to neighboring regions whose compositions were similar to other ecosystems in the Gulf of St. Lawrence. This study enhances the understanding of sub-Arctic benthic communities and will contribute to monitoring programs for industrial harbor ecosystems. View Full-Text
Keywords: biodiversity; coastal benthos; macrofauna; sub-Arctic ecosystems; Gulf of St. Lawrence biodiversity; coastal benthos; macrofauna; sub-Arctic ecosystems; Gulf of St. Lawrence
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MDPI and ACS Style

Dreujou, E.; McKindsey, C.W.; Grant, C.; Tréau de Coeli, L.; St-Louis, R.; Archambault, P. Biodiversity and Habitat Assessment of Coastal Benthic Communities in a Sub-Arctic Industrial Harbor Area. Water 2020, 12, 2424. https://doi.org/10.3390/w12092424

AMA Style

Dreujou E, McKindsey CW, Grant C, Tréau de Coeli L, St-Louis R, Archambault P. Biodiversity and Habitat Assessment of Coastal Benthic Communities in a Sub-Arctic Industrial Harbor Area. Water. 2020; 12(9):2424. https://doi.org/10.3390/w12092424

Chicago/Turabian Style

Dreujou, Elliot, Christopher W. McKindsey, Cindy Grant, Lisa Tréau de Coeli, Richard St-Louis, and Philippe Archambault. 2020. "Biodiversity and Habitat Assessment of Coastal Benthic Communities in a Sub-Arctic Industrial Harbor Area" Water 12, no. 9: 2424. https://doi.org/10.3390/w12092424

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