golden apple snail eggs pomacea canaliculata nature reeds.

agriculture ampullariidae angiostrongylus cantonensis animal apple snail aquatic breeding channeled cherry egg color control creature ecology ecosystem eggs environment environmental conservation fauna gastropod golden houston infection introduced species invasive mollusc natural habitat nature people outdoors outside parasite pest plant pomacea canaliculata reeds river roundworm swamp texas usa vertical waterway wildlife zoology mollusk leaf cluster pink