Benthic organisms and marine toxic substances and pollutants data collected using net casts and other instruments from the GYRE and other platforms in NW Atlantic Ocean from 11 November 1983 to 30 July 1986 (NODC Accession 8800192)

Benthic organisms and marine toxic substances and pollutants were collected using net casts, sediment sampler, and other instruments from the GYRE and other platforms in NW Atlantic Ocean. Data were collected from 11 November 1983 to 30 July 1986. Data were submitted by Battelle Marine Research Laboratory in New England with support from the New England Shelf and Slope Program. Data has been been processed by NODC to the NODC standard F132- Benthic Organisms and F144- Marine Toxic Substances and Pollutants formats. Full format and format code descriptions are available at http://www.nodc.noaa.gov/General/NODC-datafmts.html.

The F132 format contains data from field sampling or surveys of bottom dwelling marine organisms. The data provide information on species abundance, distribution, and biomass; they may have been collected by point sampling (grab or core), by tow (dredge, trawl or net), by photographic surveys, or by other methods. Cruise information such as vessel, start and end dates, investigator, and institution/agency; station numbers, positions and times; and equipment and methods are reported for each survey. Environmental data reported at each sampling site may include meteorological and sea surface conditions; surface and bottom temperature, salinity and dissolved oxygen; and sediment characteristics. Number of individual organisms and total weight of organisms is reported for each species. A text record is available for comments.

The F144 format contains data on ambient concentrations of toxic substances and other pollutants in the marine environment. The data derive from laboratory analyses of samples of water, sediment, or marine organisms. Samples may have been collected near marine discharge sites or during ocean monitoring surveys of large areas. Field observations of tar deposits on beaches may also be reported. Survey information includes platform type, start and end dates, and investigator and institution. If data are collected near a discharge site, discharge location, depth, distance to shore, average volume, and other characteristics are reported. Position, date, time and environmental conditions are reported for each sample station. Environmental data may include meteorological and sea surface conditions, tide stage and height, depth of the thermocline or mixed layer surface temperature and salinity, and wave height and periods. Sample characteristics, collection methods, and laboratory techniques are reported for each sample collected and analyzed. The data record comprises concentration values (or a code to indicate trace amounts) for each chemical substance analyzed. Chemical substances are identified by codes based on the registry numbers assigned by the Chemical Abstracts Service (CAS) of the American Chemical Society. Marine organisms from which samples have been taken are identified using the 12-digit NODC Taxonomic Code. A text record is available for optional comments.

本数据集采集自西北大西洋（Northwest Atlantic Ocean）海域的GYRE平台及其他作业平台，采用拖网采样、沉积物采样器及其他设备收集底栖生物（Benthic organisms）、海洋有毒物质与污染物。数据采集时段为1983年11月11日至1986年7月30日。该数据集由位于新英格兰的巴特尔海洋研究实验室（Battelle Marine Research Laboratory）提交，得到新英格兰陆架与斜坡计划（New England Shelf and Slope Program）的支持。数据已由国家海洋数据中心（NODC, National Oceanographic Data Center）处理为符合其标准的F132-底栖生物与F144-海洋有毒物质及污染物格式。完整格式及格式代码说明可访问http://www.nodc.noaa.gov/General/NODC-datafmts.html查询。

F132格式存储野外采样或调查获取的底栖海洋生物数据。此类数据涵盖物种丰度、分布及生物量信息，采集方式包括点位采样（抓斗式采样器或岩心采样器）、拖曳采样（拖网、拖捞网或网具）、摄影调查或其他方法。每项调查均记录航次信息，包括作业船舶、起止日期、调查人员及所属机构/单位；测站编号、位置与时间；以及所用设备与采样方法。各采样点位的环境数据可包含气象与海表状况、表层与底层水温、盐度及溶解氧含量，以及沉积物特性。数据集将记录每个物种的个体数量及总生物量，并提供文本注释字段供填写备注。

F144格式存储海洋环境中有毒物质及其他污染物的环境浓度数据。此类数据源自水体、沉积物或海洋生物样本的实验室分析结果。样本可采集自海洋排放点附近或大范围海洋监测调查区域，也可包含海滩焦油沉积的野外观测记录。调查信息包括作业平台类型、起止日期、调查人员及所属机构。若采样点位位于排放点附近，则需记录排放位置、水深、离岸距离、平均排放量及其他相关特征。每个采样测站均记录其位置、日期、时间及环境状况。环境数据可涵盖气象与海表状况、潮汐阶段与潮高、温跃层或混合层深度、表层水温与盐度，以及浪高与波周期。每项采集并分析的样本均记录其特征、采样方法及实验室分析技术。数据记录包含每种分析化学物质的浓度值（或用于表示痕量含量的代码）。化学物质通过美国化学学会（American Chemical Society）化学文摘社（CAS, Chemical Abstracts Service）分配的登记号对应的代码进行标识。采样所用的海洋生物采用12位NODC分类代码进行标识。数据集提供可选的文本注释字段。