Under PFMC management, when are rebuilding actions typically triggered?

• A. When stock is overfished
• B. When stock is not overfished
• C. When data gaps exist
• D. When climate variability shifts distribution

Answer: (A)

Rebuilding actions are triggered when a stock is overfished. In practice, this means the population size or spawning biomass has fallen below a safe threshold, signaling that targeted measures are needed to restore it to healthy levels. When a stock is declared overfished, a rebuilding plan is developed with timelines, harvest limits, and actions aimed at reaching the target level within a defined period. If the stock isn’t overfished, rebuilding isn’t required because the population is already considered healthy enough to support current and future yields. Data gaps or climate-driven shifts in distribution can complicate status assessments, but they don’t by themselves initiate rebuilding actions.