Contaminant and Biological Data on Landlocked Arctic Char
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The purpose of this study is to examine trends over time of mercury and other trace elements, as well as legacy and new persistent organic pollutants (POPs) in landlocked Arctic char collected annually from lakes near the community of Resolute Bay on Cornwallis Island (Amituk, Char, North, Small, and Resolute) and in Lake Hazen in Quttinirpaaq National Park on Ellesmere Island. The project is also examining links between climate warming and increases or decreases in mercury concentrations in landlocked char. The project has included several graduate student led side projects (see (i) Gantner, N et al. (2009): Temporal trends of mercury, cesium, potassium, selenium, and thallium in Arctic char (Salvelinus alpinus) from Lake Hazen, Nunavut, Canada: effects of trophic position, size, and age. Environmental Toxicology and Chemistry, 28(2), 254-263, doi:10.1897/08-054.1 ; (ii) Gantner, N. et al. 2010b. Environ. Toxicol. Chem. 29: 633-643. ; (iii) Gantner, N et al. 2010a. Environ. Toxicol. Chem. 29: 621-632. ; (iv) Lescord G.L. et al. 2015a. Perfluorinated and Polyfluorinated Compounds in Lake Food Webs in the Canadian High Arctic. Environ. Sci. Technol. 49: 26942702. ; and (v) Lescord G.L. et al. 2015b. Factors affecting mercury concentrations and biomagnification through six lake food webs in the Canadian High Arctic. Sci.Total Environ. 509/510:195-205. [CCIN 12074]).
本研究旨在探究加拿大康沃利斯岛雷索卢特湾周边社区所辖的阿米图克湖、查尔湖、北湖、小湖及雷索卢特湖，以及埃尔斯米尔岛库廷尼帕克国家公园内的黑曾湖，每年采集的内陆北极红点鲑体内汞、其他微量元素，以及传统与新型持久性有机污染物（Persistent Organic Pollutants, POPs）的时间变化趋势。本项目同时考察气候变暖与内陆北极红点鲑体内汞浓度升降之间的关联。本项目包含多项由研究生牵头的附属研究，具体如下：(i) Gantner N 等人(2009)：《加拿大努纳武特地区黑曾湖北极红点鲑（Salvelinus alpinus）体内汞、铯、钾、硒与铊的时间变化趋势：营养级、体型与年龄的影响》，《环境毒理学与化学》，28(2)，254-263，doi:10.1897/08-054.1；(ii) Gantner N 等人2010b，《环境毒理学与化学》，29: 633-643；(iii) Gantner N 等人2010a，《环境毒理学与化学》，29: 621-632；(iv) Lescord G.L. 等人2015a，《加拿大高北极地区湖泊食物网中的全氟与多氟化合物》，《环境科学与技术》，49: 2694-2702；(v) Lescord G.L. 等人2015b，《加拿大高北极地区六个湖泊食物网中影响汞浓度及生物放大作用的因素》，《总体环境科学》，509/510: 195-205。[CCIN 12074]
