The study evaluates biophysical models predicting larval dispersal and population connectivity of the stalked barnacle Pollicipes pollicipes in the Iberian Peninsula. Using the Regional Ocean Modelling system and various larval behavior scenarios, researchers compared model estimates to actual recruitment data over two years. Results showed significant correlations at regional levels, suggesting high connectivity within and between regions. The findings advocate for a polycentric governance system to manage the P. pollicipes fishery, enhancing resource persistence through diversified management strategies.