• Arctic SDI catalogue
  •  
  •  
  •  

Bottom water pH in the Estuary and Gulf of St.Lawrence

Gridded pH of the Estuary and Gulf of St. Lawrence bottom waters including shallow waters. Data are a result of a 3D interpolation on a 1km x 1km x bottom depth grid. All the available CTD data sampled during the 2017 August and September multidisciplinary surveys were used.

Purpose

Since 1990, the Department of Fisheries and Oceans has been conducting an annual multidisciplinary survey in the Estuary and northern Gulf of St. Lawrence using a standardized protocol. In the southern Gulf of St. Lawrence, these bottom trawl surveys has been carrying out each September since 1971. These missions are an important source of information about the status of the marine ressources.

The objectives of the surveys are multiple:

to estimate the abundance and biomass of groundfish and invertebrates, to identify the spatial distribution and biological characteristics of these species, to monitor the biodiversity of the Estuary and Gulf and finally, to describe the environmental conditions observed in the area at the moment of the sampling.

The southern Gulf surveys are realized using the following standardized protocol:

Hurlbut,T. and D.Clay (eds) 1990. Protocols for Research Vessel Cruises within the Gulf Region (Demersal Fish) (1970-1987). Can. MS Rep. Fish. Aquat. Sci. No. 2082: 143p.

The sampling protocols used for the Estuary and northern Gulf surveys are described in details in the following publications:

Bourdages, H., Archambault, D., Bernier, B., Fréchet, A., Gauthier, J., Grégoire, F., Lambert, J., et Savard, L. 2010. Résultats préliminaires du relevé multidisciplinaire de poissons de fond et de crevette d’août 2009 dans le nord du golfe du Saint-Laurent. Rapp. stat. can. sci. halieut. aquat. 1226 : xii+ 72 p.

Bourdages, H., Archambault, D., Morin, B., Fréchet, A., Savard, L., Grégoire, F., et Bérubé, M. 2003. Résultats préliminaires du relevé multidisciplinaire de poissons de fond et de crevette d’août 2003 dans le nord du golfe du Saint-Laurent. Secr. can. consult. sci. du MPO. Doc. rech. 2003/078. vi + 68 p.

Annual reports are available at the Canadian Science Advisory Secretariat (CSAS), (http://www.dfo-mpo.gc.ca/csas-sccs/index-eng.htm).

Bourdages, H., Brassard, C., Desgagnés, M., Galbraith, P., Gauthier, J., Légaré, B., Nozères, C. and Parent, E. 2017. Preliminary results from the groundfish and shrimp multidisciplinary survey in August 2016 in the Estuary and northern Gulf of St. Lawrence. DFO Can. Sci. Advis. Sec. Res. Doc. 2017/002. v + 87 p.

Simple

Date ( RI_367 )
2018
Date ( RI_366 )
2018
RI_416
  Government of Canada; Fisheries and Oceans Canada - Section Gestion de données - Direction des avis, information et soutien scientifiques ( )
850, route de la Mer, P.O. Box 1000 , Mont-Joli , G5H 3Z4 , Canada
Status
onGoing; enContinue RI_596
Maintenance and update frequency
annually; annuel RI_539
Keywords ( RI_530 )
  • Water pH
  • Ocean Chemistry
Keywords ( RI_525 )
  • St. Lawrence Estuary
  • Gulf of St. Lawrence
Government of Canada Core Subject Thesaurus Thésaurus des sujets de base du gouvernement du Canada ( RI_528 )
  • Earth sciences
  • Oceanography
  • Oceans
  • Salt water
  • Chemistry
Classification
unclassified; nonClassifié RI_484
Use limitation
Open Government Licence - Canada (http://open.canada.ca/en/open-government-licence-canada)
Access constraints
license; licence RI_606
Use constraints
license; licence RI_606
Spatial representation type
vector; vecteur RI_635
Metadata language
fra; CAN
Metadata language
eng; CAN
Character set
utf8; utf8 RI_458
Topic category
  • Oceans
  • Environment
Begin date
2017
End date
2017
N
S
E
W
thumbnail


Reference system identifier
https://epsg.io/ / EPSG:32198 / 7.4.1
Distribution format
  • ESRI REST ( 10.3.1 )

RI_414
  Government of Canada; Fisheries and Oceans Canada - Section Gestion de données - Direction des avis, information et soutien scientifiques ( )
850, route de la Mer, P.O. Box 1000 , Mont-Joli , G5H 3Z4 , Canada
OnLine resource
Bottom water pH in the Estuary and Gulf of St.Lawrence ( ESRI REST: Map Server )

Web Service;ESRI REST;eng

OnLine resource
Bottom water pH in the Estuary and Gulf of St.Lawrence ( ESRI REST: Map Server )

Web Service;ESRI REST;fra

File identifier
15c36c35-bb63-425e-9753-12704d310844 XML
Metadata language
fra; CAN
Character set
utf8; utf8 RI_458
Hierarchy level
dataset; jeuDonnées RI_622
Date stamp
2025-02-04T20:45:17.234Z
Metadata standard name
North American Profile of ISO 19115:2003 - Geographic information - Metadata
Metadata standard version
CAN/CGSB-171.100-2009
RI_418
  Government of Canada; Fisheries and Oceans Canada - Section Gestion de données - Direction des avis, information et soutien scientifiques ( )
850, route de la Mer, P.O. Box 1000 , Mont-Joli , G5H 3Z4 ,
 
 

Overviews

overview
large_thumbnail
overview
large_thumbnail_fre

Spatial extent

N
S
E
W
thumbnail


Keywords


Provided by

logo

Associated resources

Not available


  •  
  •  
  •