Biodiversity and Habitat Assessment of Coastal Benthic Communities in a Sub-Arctic Industrial Harbor Area
| Autor: | Christopher W. McKindsey, Richard St-Louis, Elliot Dreujou, Cindy Grant, Philippe Archambault, Lisa Tréau de Coeli |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
0106 biological sciences
lcsh:Hydraulic engineering Gulf of St. Lawrence Geography Planning and Development Biodiversity Aquatic Science 010603 evolutionary biology 01 natural sciences Biochemistry lcsh:Water supply for domestic and industrial purposes lcsh:TC1-978 Organic matter Ecosystem Water Science and Technology biodiversity chemistry.chemical_classification lcsh:TD201-500 Ecology 010604 marine biology & hydrobiology Sediment sub-Arctic ecosystems Taxon chemistry Habitat Benthic zone macrofauna Environmental science Spatial variability coastal benthos |
| Zdroj: | Water, Vol 12, Iss 2424, p 2424 (2020) Water Volume 12 Issue 9 |
| ISSN: | 2073-4441 |
| Popis: | 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-Î les (Qué bec, Canada)&mdash 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 Î les 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 Î les, 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. |
| Databáze: | OpenAIRE |
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