CGFS Catch Data : Data from the Eastern English Channel Ground Fish Survey

the cgfs campaign is part of a historical series of fishing surveys that began in 1988 (cgfs eastern part, conducted on the r/v gwen drez) and was extended to cover the entire english channel regularly from 2018 (on r/v thalassa). oinly data for the eastern channel is presented. for data from the western channel please see "wcgfs".for both surveys, the main objective is to collect basic data for estimating the state of resources through direct assessment of stock abundance and distribution, along with biological sampling of the catches. taking place every year between mid-september and mid-october, it contributes to the european project for the contractualization of basic fishery data collection (dcf). the campaign also allows for sampling and a better understanding of the entire ecosystem, aligning with the implementation of an ecosystem-based approach to fisheries at the community level. the cgfs also provides data for numerous national and international research projects. the collected and validated data are transmitted at the end of each campaign to national databases (sih, harmonie, coriolis) and the european database (datras), enabling their use by different working groups and ensuring public access to this data. finally, the cgfs data contributes to the baseline assessment of the impact of numerous marine aggregates extraction projects (through a multi-year convention signed between the ministry of ecology, sustainable development and spatial planning, ifremer, and brgm) planned or underway in the eastern english channel.

CGFS调查系列为自1988年起（CGFS东部部分，在R/V Gwen Drez上实施）启动的历史性渔业调查项目之一，并于2018年（在R/V Thalassa上实施）扩展至对英吉利海峡进行全面覆盖。本数据集仅展示东部海峡的数据；如需西部海峡数据，请参阅“WCGFS”。对于这两项调查，其主要目标是通过直接评估鱼群的丰富度和分布，以及捕获的生物样本，收集资源状况的基本数据。该调查每年在九月中期至十月中期进行，有助于欧洲项目对基本渔业数据收集的契约化（DCF）。此外，该调查还允许对整个生态系统进行采样和深入理解，与社区层面实施基于生态系统的渔业方法相一致。CGFS还为众多国家和国际研究项目提供了数据。每个调查结束后，收集并验证的数据会被传输至国家数据库（SIH、Harmonie、Coriolis）以及欧洲数据库（DATRAS），以便不同工作组使用，并确保数据的公共可访问性。最后，CGFS数据对于评估众多在东部英吉利海峡计划中或正在进行中的海洋沉积物提取项目的影响的基线评估做出了贡献（通过生态与环境部、可持续发展和空间规划部、Ifremer和BRGM签订的多年公约）。