Credit: Olga Reñones
Not all specimens of the same species are the same: there is a marked variability within the same population and sometimes these morphological differences are translated into a different behaviour.
A study by the UB shows that fishing alters resource distribution and therefore, the behaviour of two typologies of the same fish species, Labrus bergylta. These results, published in the journal
Marine Ecology Progress Series, show that fishing hardens the understanding of how the features of species have evolved in exploited ecosystems, since it has an impact on how these act and feed from animals. Also, results ratify the importance of marine reservoirs to understand the original behaviour of these ecosystems before human intervention.