id	keyword
agsci-664	fish
agsci-664	congo
agsci-664	species
agsci-664	endoparasites
agsci-664	niloticus
agsci-664	river
agsci-664	schistosoma
agsci-664	tholloni
agsci-664	tilapia
agsci-664	oreochromis
agsci-664	pool
agsci-664	malebo
agsci-664	kinshasa
agsci-664	water
agsci-664	tracts
agsci-664	genera
agsci-664	specimens