| helminth parasites of the tropical gar, atractosteus tropicus gill, from tabasco, mexico. | a total of 8 helminth species were recorded in an examination of 43 tropical gar, atractosteus tropicus gill, collected at the pantanos de centla biosphere reserve, tabasco, mexico. the parasite species included 1 adult trematode, 3 metacercariae, 1 cestode, 1 adult nematode, and 2 nematode larvae. six of these 8 species were rare, with low prevalence (< 17%) and abundance (< 1.0 helminths per examined fish). the larvae of contracaecum sp. were the most abundant in the sample, constituting 60% o ... | 2004 | 15165047 |