| helminth parasites of the chub mackerel scomber colias off the tunisian coast and their use in stock discrimination. | nine helminth parasites were used as biological tags to discriminate diverse areas of scomber colias gmelin, 1789. during three seasons, a total of 369 fish were examined in four zones off the tunisian coast, including bizerte in the north, kelibia and mahdia in the centre and zarzis in the south. discriminant analyses were used to identify distinct areas of s. colias. fish from bizerte were grouped as one area and were correlated negatively with the monogenean grubea cochlear and the digenean l ... | 2017 | 28215202 |