Indian Ocean Yellowfin Tuna SS3 Model Projections

This document presents projections and K2SM for the 2018 Indian Ocean tuna Stock Synthesis assessment model. Deterministic projections were conducted for the 24 reference grid scenarios for 2018 – 2027 assuming a constant level of catch at 60%–120% of the 2017 catch level. The projection incorporates the range of uncertainty among model selection but does not describe uncertainty due to parameter estimation error, or stochastic future recruitment variability.