1959 - 1959 Centre for Environment, Fisheries & Aquaculture Science (Cefas) Survey : EHOLT/07/1959 (part of Historic Arctic Survey Series)

This survey was undertaken by Cefas as part of the Historic Arctic Survey Series; *Gadus morhua* (Atlantic Cod) stocks in the Barents Sea are currently at levels not seen since the 1950s. Causes for the population increase last century, and understanding of whether such large numbers will be maintained in the future, are unclear. To explore this, we digitised and interrogated historical cod catch and diet datasets from the Barents Sea. Data includes temporal and spatial information, cod catch data and length distributions, and hydrographic data. Survey took place between 30/09/1959 and 29/10/1959 on Ernest Holt Equipment used during this survey : - Otter Trawl 78ft Granton with shrimp netting cover Survey operations were undertaken on 51 stations 22 different species were caught on this survey本调查由英国中央水产与水产养殖科学中心（Centre for Environment, Fisheries and Aquaculture Science, Cefas）作为"北极历史调查系列"（Historic Arctic Survey Series）的一部分开展。 当前巴伦支海的大西洋鳕（*Gadus morhua*, Atlantic Cod）种群资源量达到了自20世纪50年代以来的历史高位。上个世纪该种群数量增长的动因，以及未来能否维持如此庞大的种群规模，目前仍不明确。为探究这一问题，研究团队对巴伦支海的历史鳕鱼捕捞与摄食数据集进行了数字化处理与解析。该数据集包含时空信息、鳕鱼捕捞数据、体长分布数据以及水文数据。 本次调查于1959年9月30日至1959年10月29日在"欧内斯特·霍尔特号"（Ernest Holt）科考船上进行。 本次调查使用的设备如下： - 78英尺格兰顿型板拖网（Otter Trawl 78ft Granton），附带虾网覆层 本次调查共完成51个站位的采样作业。 本次调查共捕获22个不同物种。