Significant areas of krill in the Estuary and Gulf of St. Lawrence
Krill is a generic name for crustaceans of the order Euphausiids, most of which are known to be Thysanoessa raschii and Meganyctiphanes norvegica in eastern Canada. Krill is an important food resource for many marine mammals, in particular the blue whale.
The maps show the points of high krill concentration per month from April to November. Each point gives the number of years of high aggregation probability (6 to 10 years). The data were produced from a mathematical model developed in Plourde et al. 2016. The model has allowed to calculate the probability of meeting a strong aggregation of krill over a period of 10 years. High krill aggregations are defined as the 95th percentile of predicted biomass in 10 x 10 km cells covering the Estuary and Gulf of St. Lawrence.
Additional Information
Plourde, S., Lehoux, C., McQuinn, I.H., and Lesage, V. (2016). Describing krill distribution in the western North Atlantic using statistical habitat models. DFO Can. Sci. Advis. Sec. Res. Doc. 2016/nnn. vi + xx p.
Plourde, S., McQuinn, I.H., Lesage, V., Lehoux, C., Joly, P., Bourassa, M-N. in prep. Spatial distribution of krill in eastern Canadian waters: a climatological approach based on historical plankton net and acoustic data.
The data are incomplete upstream of Pointe-des-Monts because of the lack of water height anomalies in the area (variable being used to predict aggregations of krill). A less number of years with a high aggregation of krill is thus represented but that should not be interpreted as a less favorable zone compared to areas East of Pointe-des-Monts.
Simple
- Date ( RI_366 )
- 2018
- Date ( RI_367 )
- 2019
- Status
- completed; complété RI_593
- Maintenance and update frequency
- notPlanned; nonPlanifié RI_542
- Keywords ( RI_530 )
-
- krill
- distribution
- Keywords ( RI_525 )
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- Gulf of St. Lawrence
- St. Lawrence Estuary
- Thésaurus des sujets de base du gouvernement du Canada Government of Canada Core Subject Thesaurus ( RI_528 )
-
- Earth sciences
- Oceans
- 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
- Character set
- utf8; utf8 RI_458
- Topic category
-
- Biota
- Environment
- Begin date
- 2005
- End date
- 2014
))
- Reference system identifier
- http://www.epsg-registry.org / EPSG:3978 / 7.4.1
- Distribution format
-
-
ESRI REST
(
10.3.1
)
-
ESRI REST
(
10.3.1
)
- OnLine resource
-
Data Dictionary
(
HTTPS
)
Supporting Document;CSV;eng,fra
- OnLine resource
-
Number of year with krill
(
HTTPS
)
Dataset;CSV;eng,fra
- OnLine resource
-
Number of year with krill
(
ESRI REST: Map Server
)
Web Service;ESRI REST;eng
- OnLine resource
-
Number of year with krill
(
ESRI REST: Map Server
)
Web Service;ESRI REST;fra
- File identifier
- 729fbd20-ddec-43a9-a7f5-2963031a387b XML
- Metadata language
- fra; CAN
- Character set
- utf8; utf8 RI_458
- Hierarchy level
- dataset; jeuDonnées RI_622
- Date stamp
- 2025-02-06T13:43:51.083Z
- Metadata standard name
- North American Profile of ISO 19115:2003 - Geographic information - Metadata
- Metadata standard version
- CAN/CGSB-171.100-2009
Overviews


Spatial extent
))
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