Relative occurrence of Northern Wolffish in the Estuary and Gulf of St. Lawrence
Spatial distribution of the relative occurrence of northern wolffish in the annual DFO groundfish research surveys conducted by the Québec (1978-2008) and Gulf (1971-2008) regions.
Catch and effort data were aggregated by 100 km² cells. The probability of catching an northern wolffish in a set and within a cell (relative occurrence) was calculated as the ratio of the number of sets in which a species was recorded and the total number of sets made. This method allows the mapping of catch and effort for numerous time series based on data from different programs in both the whole study area (research surveys and Sentinel Fisheries using bottom trawls and a random stratified design) or in specific areas within the Gulf.
Dutil, J.-D., S. Proulx, S. Hurtubise, and J. Gauthier 2011. Recent findings on the life history and catches of wolffish (Anarhichas sp.) in research surveys and in the Sentinel Fisheries and Observer Program for the Estuary and Gulf of St-Lawrence. DFO Can. Sci. Advis. Sec. Res. Doc. 2010/126: x + 71 pages.
Dutil, J.-D., Proulx, S., Chouinard, P.-M., and Borcard, D. 2011. A hierarchical classification of the seabed based on physiographic and oceanographic features in the St. Lawrence. Can. Tech. Rep. Fish. Aquat. Sci. 2916: vii + 72 pages.
http:/ / www.dfo-mpo.gc.ca/ Library/ 342703.pdf.
- Publisher - Current Organization Name: Fisheries and Oceans Canada
- Licence: Open Government Licence - Canada
Data and Resources
Northern wolffish relative occurenceSHPEnglish French dataset SHP
Data DictionaryCSVEnglish French guide CSV
Northern wolffish relative occurenceCSVEnglish French dataset CSV
Northern wolffish relative occurenceESRI RESTEnglish web_service ESRI REST
Northern wolffish relative occurenceESRI RESTFrench web_service ESRI REST
|Relative occurrence of Northern Wolffish in the Estuary and Gulf of St. Lawrence|
Delivery Point: 850, route de la Mer, P.O. Box 1000
Electronic Mail Address: Oceans-QC@dfo-mpo.gc.ca