Atlantic Herring Fecundity in NAFO 4WX 2019-2020

Fecundity of Atlantic herring (Clupea harengus) was estimated across five spawning areas in Northwest Atlantic Fisheries Organization (NAFO) areas 4WX during 2019 and 2020. The dataset supports analysis of fecundity-at-size relationships by weight, length, and age, and comparison to historical data to assess reproductive potential.

Use Cases

• Model fecundity-at-size relationships using weight, length, and age variables across five spawning grounds.
• Compare current fecundity data to historical relationships for assessing temporal changes in reproductive potential.
• Analyze spatial variation in herring fecundity between the German Bank, Scots Bay, Seal Island, Southern Shore Nova Scotia, and Eastern Shore Nova Scotia areas.

Strengths

• Data covers two consecutive years (2019 and 2020) for temporal analysis.
• Spatial coverage includes five distinct spawning grounds within the NAFO 4WX region.
• Dataset is published by the Population Ecology Division of Fisheries and Oceans Canada, an authoritative source.

Limitations

• The specific number of data rows (sample size) and column structure are not provided.
• Geographic scope is limited to the NAFO 4WX division and five specific spawning areas within it.
• Data is from a fixed two-year period and may not reflect longer-term trends without historical context.

Provenance

Source

Population Ecology Division, Fisheries and Oceans Canada, St. Andrews, N.B.

Collection Method

Field estimation of herring fecundity within specified spawning areas.

Time Range

2019 and 2020.

Freshness

Data was published in September 2021 and last updated on the platform in March 2026.

Geography

Northwest Atlantic Fisheries Organization (NAFO) areas 4WX, specifically five spawning areas: German Bank, Scots Bay, Seal Island, Southern Shore Nova Scotia, Eastern Shore Nova Scotia.