Texas Parks and Wildlife Department fishery-independent monitoring program bay trawl and bag seine surveys, Texas, 1982-2020

The Texas coast climatic gradient of decreasing precipitation and freshwater inflow from northeast to southwest shapes estuarine ecosystems and biodiversity. By employing broad-scale diversity and community structure metrics and habitat suitability models of key indicator species, this study explored how multiple abiotic environmental factors, freshwater inflows, and drought and flood events shape estuarine communities across different spatial and temporal scales. A long-term fishery-independent data set captured the latitudinal, seasonal, and interannual range of environmental conditions, providing insights into the general patterns and trends across different ecosystems and demonstrating how freshwater inflow regimes affect estuarine nekton communities. These spatial patterns indicate that resource managers may be well-served to incorporate community dynamics and hydrological regimes when developing adaptive management plans to maintain freshwater inflow and target salinities for important fisheries species and estuarine communities to produce a sound ecological environment. The original dataset (first version) published on 2023-03-29 is located in the folder: Seine_Surveys_Nueces_1987-2016_Version_1_Published_2023-03-29. Two data files were added to the dataset and the second version is located in the folder: Seine_Surveys_Nueces_1987-2016_Version_2_Updated__2023-11-08.

得克萨斯海岸存在从东北向西南逐渐减弱的降水与淡水输入气候梯度，该梯度塑造了河口生态系统与生物多样性。本研究采用大尺度多样性与群落结构指标，结合关键指示物种的生境适宜性模型，探究了多种非生物环境因子、淡水输入以及旱涝事件如何在不同时空尺度下塑造河口群落。本研究依托一套长期渔业独立调查数据集，覆盖了环境条件的纬度、季节及年际变化范围，为解析不同生态系统的通用模式与趋势提供了依据，并阐明了淡水输入格局如何影响河口游泳动物群落。上述空间格局表明，资源管理者在制定适应性管理方案时，应纳入群落动态与水文格局，以维持关键渔业物种及河口群落所需的淡水输入量与目标盐度，从而构建健康的生态环境。本数据集的初始版本（V1）于2023年3月29日发布，存储于文件夹：Seine_Surveys_Nueces_1987-2016_Version_1_Published_2023-03-29。本次更新新增了两份数据文件，第二版数据集存储于文件夹：Seine_Surveys_Nueces_1987-2016_Version_2_Updated__2023-11-08。