Butorina T E, Shed'ko M B
Parazitologiia. 1989 Jul-Aug;23(4):302-8.
Parasitological analysis of sockeye salmon fry from Lake Azabach'e has shown reliable differences in the infection between aboriginal and migratory in the lake fry with the nematode Cystidicola farionis from the swim bladder, that is connected with differences in the nature of their feeding and ecology. It was found out that the infection of migratory fry occurs only in the lake during feeding and wintering periods, one-summer-old fry 35 to 57 mm in length being primarily infected. Quantitative criteria (the abundance of immature nematodes of C. farionis, the type of feeding) were ascertained, which in combination with scale characters differentiate 95.9 per cent of fry into aboriginal and migratory.
对来自阿扎巴赫湖的红大麻哈鱼幼鱼进行的寄生虫学分析表明，该湖原住民幼鱼和洄游幼鱼感染来自鱼鳔的线虫法氏囊尾线虫的情况存在可靠差异，这与它们的摄食性质和生态差异有关。研究发现，洄游幼鱼仅在湖泊摄食和越冬期间被感染，主要感染体长35至57毫米的一龄幼鱼。确定了定量标准（法氏囊尾线虫未成熟线虫的丰度、摄食类型），这些标准与鳞片特征相结合，可将95.9%的幼鱼区分为原住民幼鱼和洄游幼鱼。
