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Found 10 records similar to Average Relative Density of Fish Functional Groups and Species in the Newfoundland and Labrador Shelves Bioregion, 1981-2017

Federal

Fisheries and Oceans Canada (DFO) conducts an annual multidisciplinary scientific survey with a bottom trawl in the Estuary and the northern Gulf of St. Lawrence since 1978. Over the years this survey has been conducted on four vessels: the MV Gadus Atlantica (1978-1994), the MV Lady Hammond (1984-1990), the CCGS Alfred Needler (1990-2005) and the CCGS Teleost (2004-2021). It is important to note that the objectives, the methods used and the identification of the species during these surveys have improved over time in response to DFO requests and mandates. The data are therefore not directly comparable between these surveys.

Last Updated: Mar. 29, 2022
Date Published: Jan. 1, 2019
Organization: Fisheries and Oceans Canada
Formats: PDF CSV HTML ESRI REST
Keywords:  St. Lawrence Estuary, Gulf of St. Lawrence, Groundfish; Shrimp; Multidisciplinary survey; Teleost, Oceans, Marine biology, Fish, Aquatic wildlife, Fisheries management, Aquatic ecosystems
Federal

Fisheries and Oceans Canada (DFO) conducts an annual multidisciplinary scientific survey with a bottom trawl in the Estuary and the northern Gulf of St. Lawrence since 1978. Over the years this survey has been conducted on four vessels: the MV Gadus Atlantica (1978-1994), the MV Lady Hammond (1984-1990), the CCGS Alfred Needler (1990-2005) and the CCGS Teleost (2004-2021). It is important to note that the objectives, the methods used and the identification of the species during these surveys have improved over time in response to DFO requests and mandates. The data are therefore not directly comparable between these surveys.

Last Updated: Mar. 29, 2022
Date Published: Jan. 1, 2019
Organization: Fisheries and Oceans Canada
Formats: HTML CSV ESRI REST
Keywords:  St. Lawrence Estuary, Gulf of St. Lawrence, Groundfish; Shrimp; Multidisciplinary survey; Needler, Aquatic ecosystems, Fish, Fisheries management, Oceans, Marine biology, Aquatic wildlife
Federal

Average grid cell density is a polygon feature class containing the average density value for each grid cell per species/groups and season.

Last Updated: Jun. 15, 2022
Date Published: Mar. 1, 2009
Organization: Environment and Climate Change Canada
Formats: SHP WMS JSON HTML CSV ESRI REST
Keywords:  Pelagic, Seabirds, Procellariiformes, Charadriiformes, Average Density, Seasons, Inshore Waters, Offshore Waters, Species
Federal

Fisheries and Oceans Canada (DFO) conducts an annual multidisciplinary scientific survey with a bottom trawl in the Estuary and the northern Gulf of St. Lawrence since 1978. Over the years, this survey has been conducted on four vessels: the MV Gadus Atlantica (1978-1994), the MV Lady Hammond (1984-1990), the CCGS Alfred Needler (1990-2005) and the CCGS Teleost (2004-2021). It is important to note that the objectives, the methods used and the identification of the species during these surveys have improved over time in response to DFO requests and mandates. The data are therefore not directly comparable between these surveys.

Last Updated: Mar. 29, 2022
Date Published: Jan. 1, 2019
Organization: Fisheries and Oceans Canada
Formats: CSV ESRI REST
Keywords:  Gulf of St. Lawrence, Groundfish; multidisciplinary survey; Gadus, Marine biology, Aquatic ecosystems, Aquatic animals, Oceans, Fisheries management, Fish
Federal

Rocky Mountain Ridged Mussels (Gonidea angulata) are listed under the Species at Risk Act (SARA) as a species of special concern and have been re-assessed by the Committee on the Status of Endangered Wildlife in Canada (COSEWIC) as endangered. These fresh water mussels are only found in Canada in the Okanagan Valley of British Columbia. As a continuation of previous work and to inform future assessments and conservation efforts within this geographic range, seven easily accessible sites known to have high densities of G. angulata were selected as prospective index sites to monitor relative abundance (i.e. mussel bed density) using snorkel surveys.

Last Updated: Aug. 11, 2021
Date Published: Mar. 29, 2017
Organization: Fisheries and Oceans Canada
Formats: PDF CSV HTML ESRI REST
Keywords:  Species at Risk Act, SARA, Rocky Mountain Ridged Mussels, Gonidea angulata, Scientific research, Scientific information, Fish
Federal

Polygons denoting concentrations of sea pens, small and large gorgonian corals and sponges on the east coast of Canada have been identified through spatial analysis of research vessel survey by-catch data following an approach used by the Northwest Atlantic Fisheries Organization (NAFO) in the Regulatory Area (NRA) on Flemish Cap and southeast Grand Banks. Kernel density analysis was used to identify high concentrations and the area occupied by successive catch weight thresholds was used to identify aggregations. These analyses were performed for each of the five biogeographic zones of eastern Canada. The largest sea pen fields were found in the Laurentian Channel as it cuts through the Gulf of St. Lawrence, while large gorgonian coral forests were found in the Eastern Arctic and on the northern Labrador continental slope.

Last Updated: Sep. 16, 2019
Date Published: Oct. 13, 2016
Organization: Fisheries and Oceans Canada
Formats: ESRI REST
Keywords:  Campelen, Gulf Biogeographic Zone, Gulf of St. Lawrence, Northern Gulf, Sea Pen Field, Sea Pen, Pennatulacea, Marine biology
Federal

Polygons denoting concentrations of sea pens, small and large gorgonian corals and sponges on the east coast of Canada have been identified through spatial analysis of research vessel survey by-catch data following an approach used by the Northwest Atlantic Fisheries Organization (NAFO) in the Regulatory Area (NRA) on Flemish Cap and southeast Grand Banks. Kernel density analysis was used to identify high concentrations and the area occupied by successive catch weight thresholds was used to identify aggregations. These analyses were performed for each of the five biogeographic zones of eastern Canada. The largest sea pen fields were found in the Laurentian Channel as it cuts through the Gulf of St. Lawrence, while large gorgonian coral forests were found in the Eastern Arctic and on the northern Labrador continental slope.

Last Updated: Sep. 16, 2019
Date Published: Oct. 17, 2016
Organization: Fisheries and Oceans Canada
Formats: ESRI REST
Keywords:  Newfoundland - Labrador Shelves Biogeographic Zone, Newfoundland - Labrador Shelves, Newfoundland, Labrador, Small Gorgonian Field, Small Gorgonian, Campelen, Marine biology
Federal

Polygons denoting concentrations of sea pens, small and large gorgonian corals and sponges on the east coast of Canada have been identified through spatial analysis of research vessel survey by-catch data following an approach used by the Northwest Atlantic Fisheries Organization (NAFO) in the Regulatory Area (NRA) on Flemish Cap and southeast Grand Banks. Kernel density analysis was used to identify high concentrations and the area occupied by successive catch weight thresholds was used to identify aggregations. These analyses were performed for each of the five biogeographic zones of eastern Canada. The largest sea pen fields were found in the Laurentian Channel as it cuts through the Gulf of St. Lawrence, while large gorgonian coral forests were found in the Eastern Arctic and on the northern Labrador continental slope.

Last Updated: Sep. 16, 2019
Date Published: Oct. 6, 2016
Organization: Fisheries and Oceans Canada
Formats: ESRI REST
Keywords:  Eastern Arctic Biogeographic Zone, Eastern Arctic, Arctic, Sponge Field, Sponge, Campelen, Marine biology
Federal

Polygons denoting concentrations of sea pens, small and large gorgonian corals and sponges on the east coast of Canada have been identified through spatial analysis of research vessel survey by-catch data following an approach used by the Northwest Atlantic Fisheries Organization (NAFO) in the Regulatory Area (NRA) on Flemish Cap and southeast Grand Banks. Kernel density analysis was used to identify high concentrations and the area occupied by successive catch weight thresholds was used to identify aggregations. These analyses were performed for each of the five biogeographic zones of eastern Canada. The largest sea pen fields were found in the Laurentian Channel as it cuts through the Gulf of St. Lawrence, while large gorgonian coral forests were found in the Eastern Arctic and on the northern Labrador continental slope.

Last Updated: Sep. 16, 2019
Date Published: Oct. 17, 2016
Organization: Fisheries and Oceans Canada
Formats: ESRI REST
Keywords:  Newfoundland - Labrador Shelves Biogeographic Zone, Newfoundland - Labrador Shelves, Newfoundland, Labrador, Sea Pen Field, Sea Pen, Pennatulacea, Campelen, Marine biology
Federal

Polygons denoting concentrations of sea pens, small and large gorgonian corals and sponges on the east coast of Canada have been identified through spatial analysis of research vessel survey by-catch data following an approach used by the Northwest Atlantic Fisheries Organization (NAFO) in the Regulatory Area (NRA) on Flemish Cap and southeast Grand Banks. Kernel density analysis was used to identify high concentrations and the area occupied by successive catch weight thresholds was used to identify aggregations. These analyses were performed for each of the five biogeographic zones of eastern Canada. The largest sea pen fields were found in the Laurentian Channel as it cuts through the Gulf of St. Lawrence, while large gorgonian coral forests were found in the Eastern Arctic and on the northern Labrador continental slope.

Last Updated: Sep. 16, 2019
Date Published: Oct. 14, 2016
Organization: Fisheries and Oceans Canada
Formats: ESRI REST
Keywords:  Gulf Biogeographic Zone, Gulf of St. Lawrence, Northern Gulf, Sponge Grounds, Sponge, Porifera, Campelen, Marine biology
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