Supplement 1. Total mercury and methylmercury concentrations for 16 species of fishes from Clear Lake, California, USA, during the years 1976–2004.

File List Suchanek-Supplement-Fish.txt -- ASCII text file Description The file Suchanek-Fish-Supplement.txt contains total mercury and methylmercury concentrations for 16 species of fishes from Clear Lake, California, USA, during the years 1976–2004. The following numbers (found as superscripts associated with various entries within the Supplement) help define specific information about the samples: (1) Length extrapolated from weight using the formula: L[mm] = e(3.04)·wet wt(0.40[g]), (2) Channel catfish collected from fisherman participating in year 2000 catfish derby, (3) Wet wt for 1992 inland silversides was derived from length using the exponential curve fit formula: wet wt[g] = 0.049·e(0.054 length[mm]), (4) Analyzed as body less head, skin, and viscera, (5) Wet wt Hg was extrapolated from dry wt Hg using the average percentage moisture of 77.8%. Abbreviations are defined as: CDFG = California Department of Fish and Game database; TSMP = California Environmental Protection Agency's Toxic Substances Monitoring Program database. Included in the bottom row of several data columns is a COLUMN SUM value (cumulative sum of values for each data column) to assist in QA/QC of downloaded data.

文件列表：Suchanek-Supplement-Fish.txt -- ASCII 文本文件
说明：文件Suchanek-Fish-Supplement.txt 收录了1976年至2004年间，采自美国加利福尼亚州克利尔湖的16种鱼类的总汞与甲基汞浓度数据。
以下各条目旁的上标数字，用于明确样本的特定信息：
(1) 体长通过体重推导得出，计算公式为：体长[mm] = e^(3.04)·湿重^(0.40[g])
(2) 斑点叉尾鮰（Channel catfish）采自2000年参与鲶鱼垂钓大赛的渔民捕捞样本
(3) 1992年的内陆银汉鱼的湿重通过基于体长拟合的指数曲线公式推导得出：湿重[g] = 0.049·e^(0.054×体长[mm])
(4) 分析样本为去除头部、皮肤与内脏的躯体组织
(5) 湿重汞含量通过干重汞含量结合77.8%的平均水分占比推导得出
缩写定义如下：
CDFG = 加利福尼亚州鱼类与野生动物部门数据库（California Department of Fish and Game）
TSMP = 加利福尼亚州环境保护局有毒物质监测计划数据库（California Environmental Protection Agency's Toxic Substances Monitoring Program）
多个数据列的底部行均设有列总和值（COLUMN SUM），即各数据列的数值累计和，用于辅助开展下载数据的质量保证与质量控制（Quality Assurance/Quality Control, QA/QC）工作。