In like manner the great majority of fishes breed only once a year, like the shoal fishes (or, in other words, such as are caught in nets), the tunny, the pelamys, the grey mullet, the chalcis, the mackerel, the sciaena, the psetta and the like, with the exception of the basse; for this fish (alone amongst those mentioned) breeds twice a year, and the second brood is the weaker of the two.