Abstract Renibacterium salmoninarum (RS), the causative agent of bacterial kidney disease, has been a serious threat to salmonid health in the Laurentian Great Lakes. Despite its wide spread presence in the Great Lakes basin, little is known about RS ecology and the potential role of non-salmonid species as one of the pathogen’s reservoirs. This information is of paramount importance to fishery managers in order to better understand RS distribution in the different biotic components of the Great Lakes watershed. In this study, non-salmonid species from lakes Michigan and Huron, and from 13 inland waters of the Great Lakes watershed were collected from 1999 to 2008. Out of 380 fish sampled from lakes Michigan and Huron, 42 (11.05%) tested positive for RS as determined by the nested polymerase chain reaction. Prevalence was lower in Lake Huron (5.71%) compared to Michigan (20.74%), but the difference was not statistically significant. Prevalence of RS was not found to be significantly different between species or sites; however, when species were grouped into demersal vs. pelagic categories, significant differences (P

中文翻译：

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劳伦大湖和内陆栖息地非鲑鱼中鲑鱼肉毒素的流行和分布

摘要 沙门氏菌（RS）是细菌性肾病的病原体，已严重威胁劳伦大湖鲑鱼的健康。尽管在五大湖盆地广泛存在，但对 RS 生态学和非鲑鱼物种作为病原体储存库之一的潜在作用知之甚少。为了更好地了解五大湖流域不同生物成分中的 RS 分布，该信息对于渔业管理者至关重要。在这项研究中，从 1999 年到 2008 年收集了密歇根湖和休伦湖以及五大湖流域内 13 个内陆水域的非鲑鱼物种。在从密歇根湖和休伦湖取样的 380 条鱼中，42 条 (11.05%) 的检测呈阳性RS 由嵌套聚合酶链反应确定。休伦湖的患病率较低（5. 71%) 与密歇根州 (20.74%) 相比，但差异无统计学意义。未发现 RS 的流行在物种或地点之间存在显着差异；然而，当物种被分为底层与远洋类别时，显着差异（P