Selset R, Døving K B
Acta Physiol Scand. 1980 Feb;108(2):113-22. doi: 10.1111/j.1748-1716.1980.tb06508.x.
Mature anadromous char (Salmo alpinus L.) of a specific population were tested in behaviour experiments with respect to attraction effects of smolts of the same population, smolt material, and chemical fractions of that material. The char reaction indicated preference for intestinal contents and possibly bile from own population over skin mucus material and food. Chemical fractions isolated from the intestinal contents were tested for attraction at a concentration of 1.5 x 10(-9) g per 1. One of the fractions attracted the mature char. The results are discussed in relation to the "migration pheromone" hypothesis proposed by Nordeng (1971) as being crucial for the return of anadromous salmonids to their home river's spawning grounds.
对特定种群的成熟溯河产卵型嘉鱼（Salmo alpinus L.）进行了行为实验，测试了同一种群的幼鱼、幼鱼物质以及该物质的化学组分的吸引效果。嘉鱼的反应表明，相较于皮肤黏液物质和食物，它们更偏好自身种群的肠道内容物以及可能的胆汁。对从肠道内容物中分离出的化学组分进行了测试，浓度为每1毫升1.5×10⁻⁹克时的吸引效果。其中一种组分吸引了成熟嘉鱼。结合诺登（1971年）提出的“洄游信息素”假说对结果进行了讨论，该假说认为这对于溯河产卵型鲑科鱼类返回其家乡河流的产卵地至关重要。
