| ligula intestinalis (cestoda: diphyllobothriidae) in kenya: a field investigation into host specificity and behavioural alterations. | within the distribution of ligula intestinalis, a tapeworm affecting freshwater fishes, there are genetically distinct and well-separated phylogenetic clusters. east africa is represented by a single monophyletic clade which is understudied compared with euro-mediterranean clades. the present field investigation in the lake baringo and naivasha catchments, kenya, revealed that this l. intestinalis clade was highly host-specific, present in only 2 of 12 fishes examined; barbus paludinosus in naiv ... | 2009 | 19627635 |