SoG Pacific Herring Stock Update in 2025

Pacific Herring (Clupea pallasii) abundance in British Columbia is assessed using a spatially integrated statistical catch at age operating model framework, fit to spawn survey indices, fishery age composition data, and commercial catches. Simulations assess management procedure performance relative to the conservation objective and spawning stock biomass is assessed relative to biomass reference points including the limit reference point, candidate upper stock reference points, and 𝐵MSY. A quota option is provided for the Strait of Georgia stock assessment region using a management procedure tuned to meet the conservation objective. This Science Response Report results from the September 22, 2025, regional peer review on the Strait of Georgia Pacific Herring Stock Status in 2025.