Abiotic data collected in the St. Lawrence River and several tributaries in and adjacent to the Saint Regis Mohawk Tribe reservation in northern New York, 2004

This data set includes the sample site locations, site descriptions, and abiotic data used in the analyses reported in McKenna et al. 2008. The data represent selected abiotic conditions within the St. Lawrence and lower reaches of four US tributaries during 2004. Samples were collected from shallow, seinable areas (less than 1.5 m) of the St. Lawrence River, adjacent wetland channels, and the lower reaches of major tributaries (Grass River, Raquette River, St. Regis River, and Salmon River). This part of the St. Lawrence River is non-tidal fresh water. Sample locations were randomly selected from a grid of spatial cells (1 km x 1 km) encompassing the area within the 5,700 ha Akwesasne Wetland Complex (at the intersection of the New York, Ontario, and Quebec borders). Continuously recording temperature (Hobo H8 one channel) and pressure (Hobo-Atm; water-level) sensors (Onset, Bourne, Massachusetts) were installed at 12 of the sites. The variability of water level was represented by the spatially interpolated coefficient of variation (CV) of those continuous water pressure measurements.

本数据集包含McKenna等人2008年发表的分析研究所使用的样点位置、样点描述与非生物数据。该数据涵盖了2004年圣劳伦斯河（St. Lawrence）及4条美国支流下游区域的选定非生物环境条件。采样工作开展于三类区域：圣劳伦斯河水深不足1.5米的浅滩可围网采样区、邻近湿地水道，以及4条主要支流的下游河段——格拉斯河（Grass River）、拉凯特河（Raquette River）、圣里吉斯河（St. Regis River）与萨蒙河（Salmon River）。该段圣劳伦斯河属于无潮汐淡水水域。样点从覆盖5700公顷阿克斯韦斯内湿地综合体（位于纽约州、安大略省与魁北克省交界处）的1km×1km空间网格单元中随机选取。研究人员在其中12个样点处部署了连续记录型传感器：包括美国马萨诸塞州伯恩市Onset公司生产的Hobo H8单通道温度传感器，以及Hobo-Atm型压力（水位）传感器。水位变异性通过对上述连续水位压力测量值进行空间插值得到的变异系数（coefficient of variation, CV）来表征。