Survey : HUXL/93/1907 (part of CEFAS Historic surveys)

This survey was undertaken by Cefas as part of the CEFAS Historic surveys;

Station and biological data collected during research surveys carried out by
Cefas (formerly Directorate of Fisheries) in seas around the UK, mostly in the
North Sea, since 1902. The survey hauls are not laid out systematically as a
grid, as in current International Bottom Trawl Surveys (IBTS) and are widely
distributed over (especially) southern and central North Sea areas. Gears and
protocols were not standardised throughout, due to the long term nature of the
series. Surveys took place in each season. Data are lacking for the periods of
both World Wars. In some periods (e.g. the early 1900s), all species caught
were recorded, whereas in other periods (e.g. 1920s-30s), only the key
commercial species (e.g., Plaice, Sole and Cod) were recorded systematically.
Note that some surveys targeted particular species (notably Plaice).

Survey took place between 19/07/1907 and 29/07/1907 on Huxley

Equipment used during this survey :

- Otter trawl Codend catch

Survey operations were undertaken on 10 stations

35 different species were caught on this survey

本调查由Cefas（前身为渔业局）发起，作为其历史调查项目的一部分，旨在收集自1902年以来在英国周边海域（主要在北海）进行的研究调查中的站点和生物数据。调查捕获物并非如当前国际底拖网调查（IBTS）那样以网格形式系统地布置，而是广泛分布于北海的南部和中部区域。由于数据系列长期性的特点，工具和方法并未在整个过程中标准化。调查在每年的每个季节均有所进行。两次世界大战期间的数据缺失。在某些时期（如20世纪初），捕获的所有物种均被记录，而在其他时期（如1920年代至1930年代），仅对关键的商业物种（例如，比目鱼、鳎鱼和鳕鱼）进行了系统的记录。请注意，某些调查针对特定物种（特别是比目鱼）。1907年7月19日至7月29日，在Huxley号上进行了调查，使用以下设备：

- 水獭拖网

捕获物：

- 鳕鱼尾网

调查在10个站点进行，共捕获了35种不同的物种。