Anchoveta (Engraulis ringens) has a wide geographical distribution in the South Eastern Pacific Ocean, from Zorritos (4°30’ S) in Northern Peru to Chiloé (42°30’ S) in Southern Chile (Serra et al. 1979). There are three different anchoveta stocks along its distribution (Cahuin et al. 2015) and (Mendo 2018) corroborated the distinction of two Peruvian stocks according to the results from electrophoretic studies:

1. the Northern-Central Peruvian stock, assessed and managed by Peru;
2. the Southern Peru/ Northern Chile stock (this profile), assessed by Chile and Peru and managed unilaterally by each country. In Chile, it corresponds to the regions of Arica and Parinacota, Tarapacá and Antofagasta (XV-II);
3. the Central-Southern Chile stock, assessed and managed by Chile.