Assessment of Indian Ocean Frigate tuna (Auxis thazard) using data-limited methods

Assessing the status of the stocks of neritic tuna species in the Indian Ocean is challenging due to the paucity of data. There is lack of reliable information on stock structure, abundance, and biological parameters. There has been no formal stock assessment conducted for frigate tuna (Auxis thazard). This paper provides an assessment for frigate tuna using data-limited techniques, namely the C-MSY approach (Froese et al. 2016) based on the most recent catch information, and a length-based method for estimation of spawning potential ratio (Hordyk et al. 2014) based on the available length composition data from the line fishery.