Marcogliese David J, Locke Sean A, Gélinas Malorie, Gendron Andrée D
Aquatic Contaminants Research Division, Water Science and Technology Directorate, Science and Technology Branch, Environment and Climate Change Canada, St. Lawrence Centre, 105 McGill, 7th Floor Montreal, QC, Canada H2Y 2E7, Canada.
J Parasitol. 2016 Feb;102(1):27-36. doi: 10.1645/12-31. Epub 2015 Oct 14.
The Richelieu River, Quebec, is a highly-regulated waterway subject to numerous anthropogenic influences from municipal effluents and agricultural activities. Parasite communities in 234 spottail shiners (Notropis hudsonius) were examined from 4 localities in late spring 2003 and 2004. Component species richness varied between 15 and 18 species in 2003 but declined to 9 to 13 in 2004, while total parasite abundance was consistently lower in 2003. Parasite component community similarity among localities could not be directly linked to available upstream water quality measurements or anthropogenic activity and was best explained by precipitation. Total precipitation in May 2003 was approximately 40% more than in May 2004, presumably altering patterns of runoff, river flow rates, and water quality. This study suggests that fish parasite species composition and richness in the Richelieu River are influenced by environmental parameters which in turn ultimately are driven by a combination of climatic conditions and anthropogenic activities in the watershed.
魁北克的黎塞留河是一条受到严格管制的水道，受到来自城市污水和农业活动的众多人为影响。2003年和2004年春末，对来自4个地点的234条细纹鳟（Notropis hudsonius）的寄生虫群落进行了检查。2003年，组成物种丰富度在15至18种之间变化，但在2004年降至9至13种，而2003年的寄生虫总丰度一直较低。各地点之间的寄生虫组成群落相似性无法直接与上游可用的水质测量或人为活动联系起来，最好用降水量来解释。2003年5月的总降水量比2004年5月大约多40%，据推测这改变了径流模式、河流流速和水质。这项研究表明，黎塞留河鱼类寄生虫的物种组成和丰富度受环境参数影响，而环境参数最终又受流域气候条件和人为活动的综合驱动。
