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Sensitivity Analysis of Updated Japanese Catch Data

This study explores the impact of updated catch data on Japanese longline fisheries, showing a 23% decrease in the 2004 estimate. The 2005 catch remains unaffected by the update, and forward projections consider the catch in 2004. Recalculations based on the updated data reveal changes in base case catches.

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Sensitivity Analysis of Updated Japanese Catch Data

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  1. Sensitivity analysis to updated Japanese catch dataMark N. Maunder and Simon Hoyle

  2. Updated Japanese longline catch • 2004 estimate (18,500 t) was approximately 23% less than the value provided for the assessment (24,000 t). J • Japanese longline Catch for 2005 is based on monthly reporting and is therefore not effected by the updated data. • The effort used for forward projections is also a function of the catch in 2004

  3. Analysis • Basecase catch for northern and southern Japanese longline fisheries were multiplied by 0.77 for all quarters. • The effort is recalculated using the updated catch data and the projections conducted.

  4. Results Basecase New catch

  5. Results

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