Butorina T E
Parazitologiia. 1975 May-Jun;9(3):237-46.
The paper deals with age changes in the parasite fauna of different intraspecific forms of chars. It is shown that this year brood and yearlings of predatory, benthofagous, stream and anadromous chars up to 10 cm in length have a similar parasite fauna. During the second year of life the chars come to different feeding; correspondingly changes their parasite fauna which differs considerably in the above forms of chars. Two groups of parasites are distinguished the infection with which increases and decreases with the age of fishes. Observations were carried out on the life cycles, developmental and maturation periods of some parasites of chars. Biological peculiarities of some mixosporidia are studied. A shift in the developmental periods of helminths is noted as compared to those from the European part of the USSR.
本文探讨了不同种内形态的红点鲑寄生虫区系的年龄变化。结果表明，当年繁殖的幼鱼和体长10厘米以下的肉食性、底栖食性、溪流型和溯河洄游型红点鲑幼鱼具有相似的寄生虫区系。在生命的第二年，红点鲑开始不同的摄食方式；相应地，其寄生虫区系也发生变化，在上述不同形态的红点鲑中差异很大。区分出两组寄生虫，鱼类感染这两组寄生虫的情况随年龄增长而增减。对红点鲑某些寄生虫的生命周期、发育和成熟阶段进行了观察。研究了一些混合孢子虫的生物学特性。与苏联欧洲部分的蠕虫相比，发现蠕虫的发育阶段有变化。
