The external surface including the fins, nostrils, beneath the operculum and under the scales was examined for ectoparasites.
The fins were removed and examined under the dissecting microscope and any lesions or cysts observed were examined more thoroughly.
However, due to the difficulties in obtaining an accurate count on the body surface proper, only fins and corneae were included in this work.
It should be noticed that this method also provides estimations of the caudal-fin angles, which can be useful to estimate the fish orientation.
All infections commenced with a single gravid worm attached to the central region of the caudal fin.
For many writers of the fin de siecle the new suburban "houses in between" had become imaginatively central.
For the south side, with its precast fins, a three-dimensional projection was preferred.
The mean intensity and intensity values for metacercariae, therefore, are related to the superficially observed metacercarial cysts in the skin, fins, gills and internal organs.
