Nella Dan: FIBEX Cruise - Zooplankton data

This dataset contains results from the First International BIOMASS Experiment (FIBEX) cruise of the Nella Dan. It is the first cruise in a series of six designed to assess the distribution and abundance of krill, Euphausia superba.

The FIBEX was an international programme co-ordinating the activities of 12 ships from 11 nations in the Southern Atlantic and Indian Oceans. Australia was responsible for surveying an area of the southern Indian Ocean south of 60 degrees and between 60 degrees and 90 degrees east longitude. Surveys of krill and other zooplankton were taken off Antarctica in the Australian sector (Mawson to Davis region) and Prydz Bay in January and March 1981. Species identity and abundance data were obtained. The major species investigated were Euphausia superba, Euphausia frigidia, Euphausia crystallorophias and Thysanoessa marcuria. Other pteropods and cephalopods were also studied.

Physical and chemical oceanography data and phytoplankton samples were also obtained, as well as results from hydroacoustic surveys of krill biomass.

Several files are available for download at the provided URL. They include excel spreadsheets on summarised data, catch composition data and station lists. Furthermore a pdf document of the report produced from the cruise is also available for download.

The fields in this dataset are:

Date
Time (GMT)
Type of Trawl
Species
Weight
Number
Latitude
Longitude
Haul Number
Towing Speed (knots)
Water Depth (metres)
Sea Temperature
Target Levels
Net Open Time
Net Close Time
Ice
Station Number
Flowmeter Reading
Towed Distance (nautical miles)
Catch Weight (grams)
Fishing Start Time
Fishing End Time
Trajectory
Depth Range Top
Depth Range Bottom
Comments

These data are also available via the biodiversity database at the provided URL. 61 taxa and 1,115 observations are present in the biodiversity database collection.

本数据集收录了“内拉丹号”（Nella Dan）首次国际生物量实验（First International BIOMASS Experiment, 简称FIBEX）航次的科考成果。该航次为系列6次科考航次的首航，旨在评估南极大磷虾（Euphausia superba）的分布与丰度。

FIBEX是一项国际合作计划，协调了来自11个国家的12艘科考船在南大西洋与印度洋开展科考作业。其中澳大利亚负责勘测南纬60°以南、东经60°至90°之间的南印度洋海域。1981年1月至3月，科考团队在澳大利亚管辖的南极海域（莫森至戴维斯海域）及普里兹湾开展磷虾与其他浮游动物调查，获取了物种鉴定与丰度数据。本次调查的主要研究物种包括南极大磷虾（Euphausia superba）、冷棘磷虾（Euphausia frigidia）、晶形磷虾（Euphausia crystallorophias）以及马库雷塔新糠虾（Thysanoessa marcuria），同时还对翼足类与头足类进行了研究。

本次调查还同步获取了物理海洋学与化学海洋学数据、浮游植物样本，以及磷虾生物量的水声学调查结果。

用户可通过提供的链接下载多个数据文件，其中包含汇总数据、渔获组成数据与站位列表的Excel电子表格；此外还可下载本次航次研究报告的PDF文档。

本数据集包含以下字段：日期（Date）、时间（GMT）、拖网类型（Type of Trawl）、物种（Species）、重量（Weight）、数量（Number）、纬度（Latitude）、经度（Longitude）、拖网编号（Haul Number）、拖速（Towing Speed，节）、水深（Water Depth，米）、海水温度（Sea Temperature）、目标强度层级（Target Levels）、网具开启时间（Net Open Time）、网具关闭时间（Net Close Time）、海冰状况（Ice）、站位号（Station Number）、流量计读数（Flowmeter Reading）、拖曳距离（Towed Distance，海里）、渔获重量（Catch Weight，克）、捕捞开始时间（Fishing Start Time）、捕捞结束时间（Fishing End Time）、航行轨迹（Trajectory）、表层采样深度（Depth Range Top）、底层采样深度（Depth Range Bottom）、备注（Comments）。

这些数据也可通过提供链接的生物多样性数据库获取，该数据库馆藏共包含61个分类单元与1115条观测记录。