Temporal declines in fecundity: A study of southern Gulf of St. Lawrence Atlantic herring (Clupea harengus) and implications for potential reproductive output

PURPOSE: This data set was used to examine temporal changes in 4TVn Atlantic Herring fecundity.

DESCRIPTION: This data set holds 4TVn Atlantic Herring fecundity data collected in the early 1970s, 1980s and 2022. We used the data to examine the temporal declines in fecundity over the 3 time periods and estimated size-fecundity relationships for each spawning component in the 1970s and 2022.

USE LIMITATION: To ensure scientific integrity and appropriate use of the data, we would encourage you to contact the data custodian.

Data and Resources

Additional Info

Field	Value
Last Updated	April 17, 2026, 19:23 (UTC)
Created	April 17, 2026, 19:23 (UTC)
contact_email	DFO.GLFCSA-CASGLF.MPO@dfo-mpo.gc.ca
contact_person	{"en": "Government of Canada; Fisheries and Oceans Canada,506-378-9989,DFO.GLFCSA-CASGLF.MPO@dfo-mpo.gc.ca", "fr": "Gouvernement du Canada; Pêches et Océans Canada,506-378-9989,DFO.GLFCSA-CASGLF.MPO@dfo-mpo.gc.ca"}
criticality_level	[]
data_dictionary	["environment"]
geographic_scope	[]
open_canada_collection	primary
open_canada_date_modified	2025-08-05 00:00:00
open_canada_date_published	2024-11-27 00:00:00
open_canada_keywords	{"en": ["Fish"], "fr": ["Poisson"]}
open_canada_subject	["nature_and_environment"]
sensitivity_level	unrestricted
title_fr	Déclins temporels de la fécondité : Une étude du hareng atlantique (Clupea harengus) du sud du golfe du Saint-Laurent et les implications pour le rendement reproductif potentiel
update_frequency	not_planned