Aplicación del plan de acción internacional para prevenir, desalentar y eliminar la pesca ilegal, no declarada y no reglamentada - 1. Metodologías e indicadores para estimar la magnitud y las repercusiones de la pesca ilegal, no declarada y no reglamentada. 1.1 Principios y enfoques

The FAO-initiated Agreement on Port State Measures (PSMA) aims to reduce illegal, unreported and unregulated (IUU) fishing by denying port access to vessels engaged in such practices. This guide lays out the difficulties of defining what constitutes IUU in the first place, which makes it more challenging to estimate the phenomenon.