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Volunteer-collected water quality data can be used for science and management

机译：志愿者收集的水质数据可用于科学和管理

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Hoyer, MV, Canfield, DE Jr. 2021. Volunteer-collected water quality data can be used for science and management. Lake Reserv Manage. XX:XXX-XXX.This study addresses concerns that comparison studies between professional and volunteer-collected data have been of limited scope, conducted under experimental conditions, and that results may not be applicable to existing large-scale, long-term volunteer monitoring datasets. Historical (2008 to 2019) phosphorus, nitrogen, chlorophyll, and Secchi data collected by 5 Florida organizations charged with monitoring water quality were compared with Florida LAKEWATCH volunteer-collected data from 216 lakes. The state organizations had National Environmental Laboratory Accreditation Conference (NELAC)-certified laboratories and LAKEWATCH used modified procedures needed to accommodate a volunteer program. The lakes are located in central Florida, range in trophic status from oligotrophic to hypereutrophic, and provided approximately 650 independent overlapping annual geometric mean pairs for comparison. Paired t-tests comparing logarithmic transformed annual geometric mean data pooled from all professional organizations with similar overlapping volunteer-collected data showed significant (P 0.05) differences for phosphorus, nitrogen, and Secchi depth but not for chlorophyll. The significant differences when reported arithmetically were only 1.1 mu g/L, -1.1 mu g/L, and 0.1 m, respectively. Regression analyses on the same data showed strong significant (P 0.05) relations with coefficient of determinations (R-2 ) of 0.91, 0.98, 0.79, and 0.78 for phosphorus, nitrogen, chlorophyll, and Secchi depth, respectively. Slopes for each paired regression were not significantly different from 1. These results demonstrate that volunteer-collected data were equivalent to data collected professionally, that the quality of volunteer data can be similar to that produced by NELAC-certified laboratories, and thus that data are adequate for both research and management.
机译：Hoyer，MV，Canfield，De Jr.2021.志愿者收集的水质数据可用于科学和管理。湖预留管理。 XX：XXX-XXX.这项研究涉及专业和志愿者收集数据之间的比较研究在实验条件下进行了有限的范围，并且该结果可能不适用于现有的大规模长期志愿者监测数据集。与来自216湖的佛罗里达湖志愿者收集的数据相比，历史（2008年至2019年）磷，氮，叶绿素和佛罗里达州组织收集的磷，氮，叶绿素和Secchi数据进行了比较。国家组织拥有国家环境实验室认证会议（NELAC） - 合理的实验室和LakeWatch使用所需的修改程序来容纳志愿者计划。湖泊位于佛罗里达州中部，范围从寡营养到过度营养的营养状况，并提供约650年独立的重叠年几何平均成对进行比较。对数对数的T-Tests比较来自所有专业组织的对数转换的年几何平均数据，其具有类似重叠的志愿者收集的数据显示的磷，氮和Secchi深度的显着（P <0.05）差异，但不适用于叶绿素。报告算术时的显着差异分别仅为1.1μg/ l，-1.1μg/ l和0.1μm。同一数据的回归分析显示出具有0.91,0.98,0.79和0.91,0.98,0.79和0.78的测定系数的强大显着（P <0.05）的关系分别用于磷，氮，叶绿素和Secchi深度。每个成对回归的斜率与1.这些结果表明，志愿者收集的数据相当于专业收集的数据，即志愿者数据的质量可以类似于Nelac认证的实验室产生的数据，因此数据是类似的适用于研究和管理。

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