Collaborative Proposal: Sources of organchlorine contamination in inland subsistence fisheries of northern Alaska: atmospheric vs. anadromous inputs. Linked to temp#:0013420

这是一个与俄勒冈州州立大学和伊萨卡学院合作的提案。 主要研究人员将研究北极淡水环境中两种潜在的污染物来源-大气沉积和生物媒介，特别是将污染物从海洋环境带到淡水环境的溯河产卵鱼类。 他们将调查这两条路线的污染物输送的阿拉斯加西部的淡水系统的相对重要性，使用内陆湖泊和湖泊与河流连接到sea.Both溯河产卵最小的思科（白鲑沙丁鱼）和淡水北极灰（Thymallus arcticus）是重要的生存物种在北极西部。 在亚北极地区，已发现有较高的污染物浓度和不同的指纹的有机氯（OC）污染物在湖泊中，他们与红鲑鱼（Onchorhynchus nerka）共存。 主要研究人员将试图确定是否同样的情况适用于北极地区，那里的有机碳被认为主要来自大气来源。研究地点将与北坡自治市野生动物部门和当地社区合作选择。 将安排几次小型访谈，使主要研究者和传统生态知识（当地居民）有机会分享信息和交流结果。

AbstractOPP-99-79695OPP-99-79689This is a collaborative proposal with Oregon State University and Ithaca College. The Principal Investigators will study two potential sources of contaminants that are arctic freshwater environments - atmospheric deposition and biological vectors, specifically, anadromous fish that carry contaminants from marine to freshwater environments. They will investigate the relative importance of these two routes of contaminant delivery for freshwater systems of western Alaska using landlocked lakes and lakes with a fluvial connection to the sea.Both the anadromous least cisco (Coregonus sardinella) and the freshwater Arctic grayling (Thymallus arcticus) are important subsistence species in the western Arctic. In sub-arctic regions, graylings have been found to have higher contaminant concentrations and a different fingerprint of organochlorines (OCs) contaminants in lakes where they co-exist with sockeye salmon (Onchorhynchus nerka). The Principal Investigators will attempt to determine whether the same situation pertains in the Arctic where OCs are believed to be derived primarily from atmospheric sources.Study locations will be chosen in partnership with the North Slope Borough Wildlife Department and local communities. Several small interview sessions will be arranged to enable the Principal Investigators and the Traditional Ecological Knowledge (local residents) opportunities to share information and communicative results.