Striped anchovy (Anchoa hepsetus) and sand seatrout (Cynoscion arenarius) growth and condition data collected aboard R/V Point Sur cruise PS16-20 (cruise PTS02) in the northern Gulf of Mexico from 2016-04-08 to 2016-04-10

This dataset contains striped anchovy (Anchoa hepsetus) and sand seatrout (Cynoscion arenarius) growth and condition data collected aboard R/V Point Sur cruise PS16-20 (cruise PTS02) in the northern Gulf of Mexico from 2016-04-08 to 2016-04-10. During a high discharge event from the Mobile Bay plume over April 8-11th, 2016, larval fish samples were collected using a Bedford Institute of Oceanography Net Environmental Sampling System (BIONESS). The BIONESS (0.25 m^2 opening) was fitted with 333-µm and 202-µm mesh nets. Ichthyoplankton samples included in this data set were collected nearshore on the coastal shelf downstream of the Mobile Bay river plume to examine how variable freshwater discharge affects larval fish distributions, growth, and morphometric condition. Within the sampling area, plume water masses were identified by salinity (≤25). The growth and morphometric condition of larval fishes (striped anchovy and sand seatrout) collected from these plume water masses were compared to conspecifics collected from nearby shelf (non-plume; >32 salinity) water masses. The dataset includes the sample collection information (date, gear number, water mass the station was located within, station locations); daily growth, recent growth, and condition data; and raw images of larval striped anchovy and sand seatrout.

本数据集收录了2016年4月8日至4月10日期间，在“瑟角号”（R/V Point Sur）科考船PS16-20航次（航次代号PTS02）于墨西哥湾北部开展的科考工作中，采集的带纹鳀（striped anchovy, *Anchoa hepsetus*）与沙海鳟（sand seatrout, *Cynoscion arenarius*）的生长及状况数据。2016年4月8日至11日莫比尔湾羽流发生强径流事件期间，研究团队使用贝德福德海洋学研究所网环境采样系统（Bedford Institute of Oceanography Net Environmental Sampling System, BIONESS）采集仔鱼样本。该采样系统的网口开口面积为0.25 m²，配备333微米与202微米孔径的网衣。本数据集涵盖的浮游仔鱼样本采集自莫比尔湾河羽流下游的近岸大陆架海域，研究旨在探究淡水径流量的动态变化对仔鱼分布、生长及形态学状况的影响。在采样区域内，羽流水团通过盐度（≤25）予以识别。研究人员将从上述羽流水团中采集的带纹鳀与沙海鳟仔鱼的生长及形态学状况，与邻近大陆架非羽流区（盐度>32）水团中采集的同种个体进行了对照比较。本数据集包含以下内容：样本采集相关信息（采样日期、渔具编号、站位所属水团类型、站位地理位置）、仔鱼的日生长速率、近期生长速率与状况数据，以及带纹鳀和沙海鳟仔鱼的原始影像资料。