Design and fitting of square mesh windows in whitefish and prawn trawls and seine nets

características de la maquinaria caractéristique du matériel chalutage conception coregono corégone crevette design diseño equipment characteristics filet de pêche fishing nets gambas y camarones pesca a la rastra pesca con red de cerco prawns and shrimps redes de pesca seining sennage trawling whitefish