The origin of these constructions is lost in history: the first documented references to the fishing grounds of the River Minho are from the 19th century. XI. These constitute a historical legacy that testifies to the ingenuity and arts of artisanal river fishing that were practiced on the river Minho.
Engenhosos sistemas de muros construídos a partir das margens do rio, as pesqueiras apresentam-se como barreiras à passagem do peixe, que se via assim obrigado a fugir pelas pequenas aberturas através das quais acabava por ser capturado.
The fishing grounds of the River Minho were already used by the Romans to fish what is considered one of the greatest delicacies of the River Minho: the lamprey. Nowadays it is still possible to closely observe the fishing grounds and watch the work of the fishermen who, by boat or with a rod, continue to preserve this artisanal fishing art.