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

摘要OPP-99-79695OPP-99-79689这是与俄勒冈州立大学和伊萨卡学院合作的提案。首席调查员将研究两个潜在的污染物来源，即北极淡水环境--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顺水鱼类。他们将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，这些途径使用内陆湖泊和与海洋有河流连接的湖泊。顺水最少的珊瑚(Coregonus Sardinella)和淡水北极灰鲸(Thymallus Arcticus)都是北极西部重要的生存物种。在亚北极地区，在与红鲑鱼(Onclhynchus Nerka)共存的湖泊中，灰泥被发现具有较高的污染物浓度和不同的有机氯(OCS)污染物指纹。首席调查员将尝试确定北极地区是否也存在同样的情况，因为北极地区的触点据信主要来自大气来源。研究地点将与北坡行政区野生动植物部门和当地社区合作选择。将安排几次小型访谈，使首席调查员和传统生态知识(当地居民)有机会分享信息和交流成果。

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.