Population biology of parasites of striped mullet, Mugil cephalus L. Crustacea

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Abstract
Class 0 and class 1 striped mullet, Mugil cephalus, were collected from May 1970 to June 1971 to study development, seasonal abundance of parasite populations, and distribution of gill parasites. Crustacean parasites observed were Ergasilus lizae, E. versicolor, E.funduli, Bomolochus concinnus, Brachiella oblonga, Caligus mfimaculatus, Clavella inversa, Lernaeeni–cus longiventris, Argulus funduli and A. chesapeakensis sp.n. Cressey. Cyclipoid copepods initially infected class 0 mullet in late spring and populations were characterized by surges in intensity at 6 to 8 week intervals. Caligoid copepods initially infected class 0 mullet in late summer and fall or appeared only on class 1 mullet. Intensity remained low, but they were observed consistently. Branchiurans were rarely observed on class 0 mullet and occurred consistently at low intensity on class 1 mullet. Study of distribution of five gill parasites indicated a high degree of gill habitat subdivision, but competitive exclusion was not observed.

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