Inventory of macroalgae and benthic macroinvertebrates along a hypoosmolarity stress gradient in Barthelemy Bay and the Colombier, Mistassini, Franquelin and Saint-Nicolas rivers of the Upper North Shore, Quebec

This inventory, from September 26 to October 3, 2019, aimed to describe the structures in species and then in functional traits of the macroalgae and benthic macroinvertebrate communities from the small estuaries of the Upper North Shore of Quebec, namely Barthelemy Bay and the Colombier, Mistassini, Franquelin and Saint-Nicolas rivers. Three hypoosmotic stress levels and one control level (marine water) were targeted for each of the selected estuaries, with eight quadrats per level. The highest stress level sites were located closest to the river mouths (where freshwater inflow is greatest at low tide) while the zero stress sites were located at the edge of the St. Lawrence Lower Estuary (where high salinity is stable). Salinity was measured with a portable refractometer and a Castaway-type CTD (Conductivity-Temperature-Density) probe. The inventory was conducted using a stratified random sampling design and the sampling unit was a quadrat measuring 25 x 25 cm. The dataset provided includes information on abiotic factors (salinity, substrate type) as well as the presence of various species of macroalgae and benthic macroinvertebrates, identified to the lowest possible species or taxonomic level. To obtain the density and biomass of the various species identified, contact Marie-Valentine Loiseau.

This inventory is part of a doctoral study on global changes in the St. Lawrence system, mainly the study of marine benthic communities in response to changes in salinity, to ensure proper management of the environment in the face of future changes. The study has one main objective and four secondary objectives. The main objective is to describe the response of benthic communities in the mediolittoral zone to hypoosmotic stress (i.e. an abrupt decrease in salinity). Secondary objectives are: (1) To describe the structure and levels of specific and functional diversity of mediolittoral benthic macroinvertebrate and macroalgal communities along a salinity gradient; (2) To create a database of functional traits of interest for the most common species of the St. Lawrence marine mediolittoral zones ; (3) To measure the responses (mortality, growth rate, calorific content) of three species of molluscs in the mediolittoral zone to a hypoosmotic stress gradient and (4) To measure the responses of several species of benthic macroinvertebrates in the mediolittoral zone to several combined factors (hypoosmotic stress, acidification and turbidity increase).

This project was funded by DFO Coastal Environmental Baseline Program under Canada’s Oceans Protection Plan (OPP). This initiative aims at acquiring environmental baseline data that contribute to the characterization of important coastal areas and to support evidence-based assessments and management decisions, while preserving marine ecosystems.

Source identification:

Data

Loiseau, M.-V., Calosi, P., Gendreau, Y., & Cusson, M. (2021). Inventory of macroalgae and benthic macroinvertebrates along a hypoosmolarity stress gradient in Barthelemy Bay and the Colombier, Mistassini, Franquelin and Saint-Nicolas rivers of the Upper North Shore, Quebec (Version 1.0) [Data set]. Observatoire Global du Saint-Laurent. https://doi.org/10.26071/OGSL-4BB77D86-B94E

Access and Use

Licence: Creative Commons Attribution 4.0

Data and Resources

Keywords

Dataset extent

Map data © OpenStreetMap contributors

Metadata Reference Date(s) June 23, 2022 (Creation)
June 23, 2022 (Revision)
Dataset Reference Date(s) March 31, 2021 (Creation)
March 31, 2021 (Revision)
Frequency of Update As Needed

Responsible Party 1
Name
Section Gestion de données, Pêches et Océans Canada
Affiliation
Pêches et Océans Canada
Email
gddaiss-dmaissb@dfo-mpo.gc.ca
Role
  • Custodian
  • Point of Contact
Responsible Party 2
Name
Marie-Valentine Loiseau
Affiliation
Université du Québec à Rimouski
Email
mvalentine.loiseau@gmail.com
Role
Principal Investigator
Responsible Party 3
Name
Piero Calosi
Affiliation
Université du Québec à Rimouski
Email
piero_calosi@uqar.ca
Role
Collaborator
Responsible Party 4
Name
Yanick Gendreau
Affiliation
Pêches et Océans Canada
Email
yanick.gendreau@dfo-mpo.gc.ca
Role
Collaborator
Responsible Party 5
Name
Mathieu Cusson
Affiliation
Université du Québec à Chicoutimi
Email
mathieu.cusson@uqac.ca
Role
Collaborator

Field Value
Title Inventory of macroalgae and benthic macroinvertebrates along a hypoosmolarity stress gradient in Barthelemy Bay and the Colombier, Mistassini, Franquelin and Saint-Nicolas rivers of the Upper North Shore, Quebec
Description

This inventory, from September 26 to October 3, 2019, aimed to describe the structures in species and then in functional traits of the macroalgae and benthic macroinvertebrate communities from the small estuaries of the Upper North Shore of Quebec, namely Barthelemy Bay and the Colombier, Mistassini, Franquelin and Saint-Nicolas rivers. Three hypoosmotic stress levels and one control level (marine water) were targeted for each of the selected estuaries, with eight quadrats per level. The highest stress level sites were located closest to the river mouths (where freshwater inflow is greatest at low tide) while the zero stress sites were located at the edge of the St. Lawrence Lower Estuary (where high salinity is stable). Salinity was measured with a portable refractometer and a Castaway-type CTD (Conductivity-Temperature-Density) probe. The inventory was conducted using a stratified random sampling design and the sampling unit was a quadrat measuring 25 x 25 cm. The dataset provided includes information on abiotic factors (salinity, substrate type) as well as the presence of various species of macroalgae and benthic macroinvertebrates, identified to the lowest possible species or taxonomic level. To obtain the density and biomass of the various species identified, contact Marie-Valentine Loiseau.

This inventory is part of a doctoral study on global changes in the St. Lawrence system, mainly the study of marine benthic communities in response to changes in salinity, to ensure proper management of the environment in the face of future changes. The study has one main objective and four secondary objectives. The main objective is to describe the response of benthic communities in the mediolittoral zone to hypoosmotic stress (i.e. an abrupt decrease in salinity). Secondary objectives are: (1) To describe the structure and levels of specific and functional diversity of mediolittoral benthic macroinvertebrate and macroalgal communities along a salinity gradient; (2) To create a database of functional traits of interest for the most common species of the St. Lawrence marine mediolittoral zones ; (3) To measure the responses (mortality, growth rate, calorific content) of three species of molluscs in the mediolittoral zone to a hypoosmotic stress gradient and (4) To measure the responses of several species of benthic macroinvertebrates in the mediolittoral zone to several combined factors (hypoosmotic stress, acidification and turbidity increase).

This project was funded by DFO Coastal Environmental Baseline Program under Canada’s Oceans Protection Plan (OPP). This initiative aims at acquiring environmental baseline data that contribute to the characterization of important coastal areas and to support evidence-based assessments and management decisions, while preserving marine ecosystems.

Source identification:

Data

Loiseau, M.-V., Calosi, P., Gendreau, Y., & Cusson, M. (2021). Inventory of macroalgae and benthic macroinvertebrates along a hypoosmolarity stress gradient in Barthelemy Bay and the Colombier, Mistassini, Franquelin and Saint-Nicolas rivers of the Upper North Shore, Quebec (Version 1.0) [Data set]. Observatoire Global du Saint-Laurent. https://doi.org/10.26071/OGSL-4BB77D86-B94E

Keywords
Ocean Variables Other
Scope Dataset
Status Pending
Resource Dates
Resource Date 1
Date
2021-03-31
Type
Creation
Resource Date 2
Date
2021-03-31
Type
Revision
Maintenance and update frequency As Needed
Point of Contact
Point of Contact 1
Name
Section Gestion de données, Pêches et Océans Canada
Affiliation
Pêches et Océans Canada
Email
gddaiss-dmaissb@dfo-mpo.gc.ca
Role
Point of Contact
Responsible Party
Responsible Party 1
Name
Section Gestion de données, Pêches et Océans Canada
Affiliation
Pêches et Océans Canada
Email
gddaiss-dmaissb@dfo-mpo.gc.ca
Role
Custodian
Responsible Party 2
Name
Marie-Valentine Loiseau
Affiliation
Université du Québec à Rimouski
Email
mvalentine.loiseau@gmail.com
Role
Principal Investigator
Responsible Party 3
Name
Piero Calosi
Affiliation
Université du Québec à Rimouski
Email
piero_calosi@uqar.ca
Role
Collaborator
Responsible Party 4
Name
Yanick Gendreau
Affiliation
Pêches et Océans Canada
Email
yanick.gendreau@dfo-mpo.gc.ca
Role
Collaborator
Responsible Party 5
Name
Mathieu Cusson
Affiliation
Université du Québec à Chicoutimi
Email
mathieu.cusson@uqac.ca
Role
Collaborator
Spatial Extent { "coordinates": [ [ [ -67.735, 49.334 ], [ -68.98, 49.334 ], [ -68.98, 48.794 ], [ -67.735, 48.794 ], [ -67.735, 49.334 ] ] ], "type": "Polygon" }
North Bounding Latitude 49.334
South Bounding Latitude 48.794
East Bounding Longitude -67.735
West Bounding Longitude -68.98
Temporal Extent
Begin
2019-09-26
End
2019-10-03
Vertical Extent
Default Locale French
Citation identifier
Authority
doi.org
Code Space
10.26071
Code
ogsl-4bb77d86-b94e
Version
1
XML Metadata File Location https://ogsl.ca
Version 1.0