Fish survey, fishing duration and other data from beach seines from the HUMDINGER as part of Outer Continental Shelf Environmental Assessment Program (OCSEAP) from 10 April 1978 to 31 October 1978 (NODC Accession 8100537)

Fish survey, fishing duration, and other data were collected from beach seines from the HUMDINGER from 10 April 1978 to 31 October 1978. Data were collected by the Alaska State Department of Fish and Game as part of Outer Continental Shelf Environmental Assessment Program (OCSEAP). Data were processed by NODC to the NODC F123 Fish/Shellfish Surveys format. Full format description is available from NODC at www.nodc.noaa.gov/General/NODC-Archive/f123.html. An analog file for this accession is available from NODC user services.

The F123 format is used for data from field sampling of marine fish and shellfish. The data derive from analysis of midwater or bottom tow catches and provide information on population density and distribution. Cruise information, position, date, time, gear type, fishing distance and duration, and number of hauls are reported for each survey. Environmental data may include meteorological conditions, surface and bottom temperature and salinity, and current direction and speed. Bottom trawl or other gear dimensions and characteristics are also reported. Catch statistics (e.g., weight, volume, number of fish per unit volume) may be reported for both total haul and for individual species. Biological characteristics of selected specimens, predator/ prey information (from stomach contents analysis), and growth data may also be included. A text record is available for comment.

1978年4月10日至10月31日期间，研究人员从赫姆丁格号（HUMDINGER）的岸曳网作业中采集了鱼类调查、捕捞时长及其他相关数据。该数据由阿拉斯加州鱼类与野生动物部（Alaska State Department of Fish and Game）作为外大陆架环境评估计划（Outer Continental Shelf Environmental Assessment Program，OCSEAP）的一部分开展采集工作。国家海洋数据中心（National Oceanographic and Data Center，NODC）已将这批数据处理为NODC F123鱼类/贝类调查数据格式。完整的格式说明可通过NODC官方网址https://www.nodc.noaa.gov/General/NODC-Archive/f123.html 查询获取。本归档数据集的模拟数据文件可通过NODC用户服务渠道获取。
F123格式适用于海洋鱼类与贝类野外采样获取的各类数据。此类数据源自中层拖网或底拖网渔获物的分析结果，可提供种群密度与分布情况相关信息。每份调查均会记录航次信息、作业位置、日期、时间、渔具类型、捕捞距离与时长以及拖网次数。环境数据可涵盖气象条件、表层与底层水温及盐度，以及海流方向与流速。底拖网或其他渔具的尺寸与特性信息也会被同步记录。可记录单拖网总捕获量及各单一物种的捕捞统计数据，例如重量、体积、单位体积鱼类数量。此外还可包含选定样本的生物学特征、捕食者/猎物相关信息（源自胃容物分析）以及生长数据。同时可提供文本记录以供审阅。