Data Collection to Determine Potential Exposure and Injuries of Threatened Gulf Sturgeon in Eight River Systems from Louisiana to Florida and Coastal Gulf of Mexico Waters from September 2010 to May 2011

This report contains Gulf sturgeon data and provides additional context for the posted dataset, including information about the collection, analysis, and organization of the data. Characteristics of this dataset include the following: This dataset provides information related to capturing, measuring, and tagging Gulf sturgeon migrating in rivers that drain into the northern Gulf of Mexico, tracking tagged Gulf sturgeon in the northern Gulf of Mexico, and recapturing and measuring Gulf sturgeon when they returned upstream. This dataset includes data collected cooperatively with the Trustees. Before posting, extensive work was done independently by BP contractors to verify some aspects of the posted data (e.g., positional coordinates and field data). The focus of this data posting is observational data that were collected under the work plan titled Pre-Assessment Plan for the Collection of Data to Determine Potential Exposure and Injuries of Threatened Gulf Sturgeon. Observations were made between September 27, 2010 and May 18, 2011, at eight rivers that drain into the northern Gulf of Mexico extending from the Pearl River, located along the Louisiana-Mississippi border, eastward to the Suwannee River, located in northcentral Florida. (An additional river identified in the work plan, the Ochlockonee in the panhandle of Florida, was not sampled due to the low likelihood of capturing Gulf sturgeon within the river.) The data were cooperatively collected by representatives of the U.S. Fish and Wildlife Service (USFWS) as the lead Trustee, the National Oceanic and Atmospheric Administration (NOAA), and BP. This dataset includes data associated with field observations including sampling date, sampling location information, water physicochemical data, fish morphometric and tagging data, and Gulf sturgeon telemetry data from the telemetry receiver stations in the northern Gulf of Mexico.本报告涵盖墨西哥湾鲟（Gulf sturgeon）相关数据，并为已发布的数据集提供补充背景，涵盖数据的采集、分析与组织流程。本数据集具备以下特征： • 本数据集包含与以下工作相关的信息：针对洄游至注入墨西哥湾北部的河流中的墨西哥湾鲟的捕获、测量与标记作业，在墨西哥湾北部对标记个体的追踪情况，以及当标记个体洄游至上游时的重捕与测量数据。 • 本数据集包含与各托管方联合采集的数据。 • 在本数据集发布前，英国石油（BP）承包商已开展大量独立验证工作，对已发布数据的部分维度进行核查，例如位置坐标与野外采集数据。 本次数据发布的核心为依据《确定受胁物种墨西哥湾鲟潜在暴露与损伤情况的数据采集预评估方案》（Pre-Assessment Plan for the Collection of Data to Determine Potential Exposure and Injuries of Threatened Gulf Sturgeon）制定的工作方案所采集的观测数据。观测工作开展于2010年9月27日至2011年5月18日期间，覆盖注入墨西哥湾北部的8条河流，分布范围从位于路易斯安那州与密西西比州边界的珍珠河向东延伸至佛罗里达州中北部的苏万尼河。（工作方案中提及的额外河流——佛罗里达狭长地带的奥克洛尼河，因捕获墨西哥湾鲟的概率极低，未开展采样工作。） 本数据集由作为牵头托管方的美国鱼类及野生动物管理局（U.S. Fish and Wildlife Service, USFWS）、美国国家海洋和大气管理局（National Oceanic and Atmospheric Administration, NOAA）以及英国石油（BP）的代表联合采集。本数据集包含与野外观测相关的各类数据，具体包括采样日期、采样位置信息、水体理化数据、鱼类形态测量与标记数据，以及部署于墨西哥湾北部的遥测接收站获取的墨西哥湾鲟遥测数据。