Collaborative Proposal: Sources of organochlorine contaminants in inland subsistence fisheries in northern Alaska: atmospheric vs. anadromous inputs. Linked to temp #:1012627

opp -99-79689这是俄勒冈州立大学和伊萨卡学院的合作提案。主要研究人员将研究北极淡水环境中两种可能的污染物来源- -大气沉积和生物载体，特别是将污染物从海洋带到淡水环境的溯河鱼类。他们将利用内陆湖泊和与河流相连的湖泊，调查这两条污染物输送途径对阿拉斯加西部淡水系统的相对重要性。溯河鲑（Coregonus sardinella）和北极淡水鱼（Thymallus arcticus）都是北极西部重要的生存物种。在亚北极地区，人们发现鲱鱼与红鲑鱼（Onchorhynchus nerka）共存的湖泊中污染物浓度更高，有机氯（OCs）污染物的指纹也不同。首席调查员将试图确定同样的情况是否也适用于北极地区，北极地区的OCs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。我们将安排几次小型访谈，让主要研究人员和传统生态知识（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.