How does forecasting differ from stock assessment in PFMC planning?

• A. Forecasting ignores data and uses guesswork.
• B. Stock assessment estimates current status; forecasting predicts future status under scenarios.
• C. Forecasting estimates current status; stock assessment predicts future.
• D. Stock assessment only analyzes economic impact.

Answer: (B)

Forecasting uses the results of a stock assessment to project what could happen in the future under different management actions. A stock assessment analyzes data to estimate the current stock status—such as biomass, spawning stock size, and fishing mortality—and provides the numbers managers need to judge how healthy the stock is right now. With those estimates in hand, forecasting runs forward-looking models to show how the stock might evolve under various scenarios (for example, different catch limits or effort levels) and to evaluate risks and outcomes over time. This forward-looking, scenario-based planning is what makes forecasting distinct from simply estimating the present status. The other ideas either imply ignoring data or mischaracterize the focus of stock assessments, which isn’t accurate.