Southern Gulf of St. Lawrence (NAFO Division 4T) Atlantic Herring Experimental Gillnet Surveys
PURPOSE:
To provide demographic parameters and relative indices of abundance for Atlantic herring in NAFO Division 4T.
DESCRIPTION:
The experimental gillnet survey is conducted in collaboration with Atlantic herring harvesters and uses standardized multi-mesh gillnets. Gillnets are set on spawning grounds in the spring and fall. Data (fish and sample) are collected to provide: (1) relative age-disaggregated indices of abundance, (2) an indicator of relative changes in fishery selectivity over time, and (3) information on the demographic composition of herring on the spawning grounds.
PARAMETERS COLLECTED:
Sample: sample location; sample weight; mesh size; length frequency
Biological: length; weight; gonad weight; maturity stage (biological); sex (biological); ring count (biological)
USE LIMITATION:
To ensure scientific integrity and appropriate use of the data, we would encourage you to contact the data custodian.
Metadata
Date Created
2002
Date Published
2026-01-12
Temporal Coverage
2002 - Present
Access in last 30 days
3
All time access
6
Source(s) and Citation
Government of Canada; Fisheries and Oceans Canada. (2026-01-12). Southern Gulf of St. Lawrence (NAFO Division 4T) Atlantic Herring Experimental Gillnet Surveys.
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Related keywords
echo sounders, anchovies/herrings, population dynamics, fisheries, gillnets, nets, clupea harengus harengus, fish, gulf of st. lawrence
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