Open Government Portal

Found 10 records similar to Evaluation of groundfish annual multidisciplinary survey in the northern Gulf of St. Lawrence (MV Lady Hammond 1984 - 1990)

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

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

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: Nov. 1, 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

In place since 1994 in eastern Canada, the sentinel fisheries program is the result of a collaboration between Fisheries and Oceans Canada (DFO) and commercial fishermen. Under this program, contracts are awarded by tender to fishermen to carry out fishing activities according to scientific protocols developed by DFO.Description of mobile surveysThe mobile gear sentinel fisheries of the northern Gulf of St. Lawrence are conducted in the divisions 4R, 4S, 3Pn and the northern part of the division 4T of the Northwest Atlantic Fisheries Organization (NAFO). This program follows a stratified random survey plan according to depth strata. A standard tow is 30 minutes long and made at a speed of 2.5 knots.

Last Updated: Apr. 8, 2020
Date Published: Jan. 1, 2019
Organization: Fisheries and Oceans Canada
Formats: PDF HTML CSV
Keywords:  Gulf of St. Lawrence, Sentinel fisheries, Marine biology, Aquatic wildlife, Aquatic ecosystems, Oceans, Fish, Fisheries management
Federal

Tow, catch, length frequency, and biological information for fish caught during the annual September research vessel trawl surveys in the southern Gulf of St. Lawrence (NAFO Division 4T). Abundance indices and spatial distribution patterns of commercial and non-commercial groundfish.

Last Updated: Jun. 10, 2022
Date Published: Jan. 19, 2020
Organization: Fisheries and Oceans Canada
Formats: CSV ESRI REST
Keywords:  Length-Frequency Measurements, Fisheries, NISKIN BOTTLES, Trawl, Amblyraja radiata, Anarhichas lupus, Artediellus atlanticus, Clupea harengus, Cottidae
Federal

Spatial distribution of lumpfish catch rates (number per tow) during the August DFO research survey conducted annually since 1990, to assess the state of groundfish and shrimp stocks in the northern Gulf of St. Lawrence. The area sampled by a tow is the product of the distance trawled (fishing time multiplied by vessel speed) and the wing spread (13.41 m for the Alfred Needler and 16.94 m for the Teleost). Given that this area may vary among tows, the sampling unit is standardized and defined as being a station sampled by a tow over a distance of 0.75 nautical miles (1,389 m) with a horizontal wing spread of 16.94 m. Catch variables were calculated based on the standard area, 0.02353 km². After each tow, the catch was sorted by taxa, and the number of individuals and total biomass of these taxa were noted.

Last Updated: May 6, 2021
Date Published: Jan. 1, 2015
Organization: Fisheries and Oceans Canada
Formats: SHP CSV ESRI REST
Keywords:  Catch rates, Assessment, Lumpfish, Cyclopterus lumpus, Gulf of St. Lawrence, St. Lawrence Estuary, Cabot Strait, Strait of Belle Isle, Earth sciences
Federal

An annual trawl survey is conducted in Southwestern Nova Scotia and the Bay of Fundy to assess the lobster stocks in the area. The survey is conducted with the Northeast Fisheries Science Center Ecosystem Survey Trawl (NEST), a small mesh trawl with a cod end liner, which ensures the capture of various sizes of lobster. The dimensions and location of the trawl are monitored and recorded throughout the tow using an electronic trawl mensuration system. In addition, water temperature and depth are also monitored.

Last Updated: May 19, 2021
Date Published: Jan. 13, 2021
Organization: Fisheries and Oceans Canada
Formats: CSV ESRI REST
Keywords:  Oceans
Federal

In place since 1994 in eastern Canada, the sentinel fisheries program is the result of a collaboration between Fisheries and Oceans Canada (DFO) and commercial fishermen. Under this program, contracts are awarded by tender to fishermen to carry out fishing activities according to scientific protocols developed by DFO.Description of fixed surveysThe fixed gear sentinel fisheries of the northern Gulf of St. Lawrence are conducted in the divisions 4R, 4S and 3Pn of the Northwest Atlantic Fisheries Organization (NAFO). The gear used is fixed gillnets or longlines. Fishing activities with nets must have a mesh size of 5 ½ inches (140mm) and are limited to a maximum of 12 to 20 nets depending on the region.

Last Updated: Apr. 8, 2020
Date Published: Jan. 1, 2019
Organization: Fisheries and Oceans Canada
Formats: PDF CSV
Keywords:  Gulf of St. Lawrence, sentinel fisheries, Marine biology, Aquatic wildlife, Aquatic ecosystems, Oceans, Fish, Fisheries management
Federal

Catch, effort, location (latitude and longitude), and associated biological data from the Eulachon Migration Study Bottom Trawl surveys - North on the coast of British Columbia. Introduction:

The Eulachon Migration Study Bottom Trawl survey - North (Eul-N) is part of the in the Eulachon Migration Study Bottom Trawl survey series and took place on the coast of British Columbia. The other survey in this series is the Eulachon Migration Study Bottom Trawl survey –South (Eul-S). The Eulachon Migration Study Bottom Trawl survey - North (Eul-N) was conducted monthly from July 2018 to March 2019 and was funded by the Fisheries and Oceans Canada (DFO) National Rotational Survey Fund.

Last Updated: May 19, 2021
Date Published: Mar. 31, 2021
Organization: Fisheries and Oceans Canada
Formats: HTML ESRI REST CSV
Keywords:  Bottom Trawl, Eulachon, Life History, Migration, Diet, Maturity, Teeth, National Rotational Survey Fund, Catch
Federal

Catch, effort, location (latitude and longitude), and associated biological data from the Eulachon Migration Study Bottom Trawl surveys - South on the coast of British Columbia. Introduction:

The Eulachon Migration Study Bottom Trawl survey - South (Eul-S) is part of the in the Eulachon Migration Study Bottom Trawl survey series and took place on the coast of British Columbia. The other survey in this series is the Eulachon Migration Study Bottom Trawl survey – North (Eul-N). The Eulachon Migration Study Bottom Trawl survey - South (Eul-S) was conducted monthly from October 2017 to March 2018 with an additional trip in January 2019 and was funded by the Fisheries and Oceans Canada (DFO) National Rotational Survey Fund.

Last Updated: May 19, 2021
Date Published: Mar. 31, 2021
Organization: Fisheries and Oceans Canada
Formats: HTML ESRI REST CSV
Keywords:  Bottom Trawl, Eulachon, Life History, Migration, Diet, Maturity, Teeth, National Rotational Survey Fund, Catch
Date modified: