Distribution of helminths in the digestive tracts of New Zealand freshwater eels

摘要: The distributions of the nematode parasites Paraquimperia sp., Spirocamallanus and Cucullanus sp. in intestines recta Anguilla dieffenbachii A. australis from Lake Ellesmere South Branch Waimakariri River were studied over two years. Peak occurrence was anterior intestine mid dieffenbachii. Male female established intestine, but as worms grew they attached more anteriorly thus maintained body prevented tail end entering rectum, vulvae close to male worms. most often found occurred throughout possibly because migration with food. extended their range crowding; increased density intestine. Posteriad movement, or without subsequent evacuation, a general feature all species b...