| a comparative study of the parasitic helminth fauna of gymnarchus niloticus (gymnarchidae) and heterotis niloticus (osteoglossidae) from lekki lagoon, lagos, nigeria. | a comparative study of the gut helminthes of gymnarchus niloticus and heterotis niloticus were undertaken. a total of 38 fishes comprising of 20 gymnarchus niloticus and 18 heterotis niloticus were examined for helminth parasites. the overall prevalence of gastrointestinal helminth infections was 34.2%, which implied that 13 of the specimens examined were infected with parasites. a total of 18 parasites were recovered from the fish specimens. the male specimens of heterotis niloticus had 38.9% p ... | 2007 | 19069513 |