1998 - 1998 Centre for Environment, Fisheries & Aquaculture Science (Cefas) Survey : CORY 9B/98 (part of North West Groundfish Survey, Qtr 3 (FSS: NWGFS))

This survey was undertaken by Cefas as part of the North West Groundfish
Survey, Qtr 3 (FSS: NWGFS);

Station, catch, length (all species) and biological data (selected species)
for each of the annual surveys in the Irish Sea and Bristol Channel using
research vessels and 4m beam trawls. Data mainly used to create indices of
abundance in support of EU data regulations and as part of an ICES funded
research program. Additional aims include collection of benthic, litter, water
temperature and salinity and acoustic data.

Survey took place between 08/09/1998 and 29/09/1998 on Corystes

Equipment used during this survey :

- Beam Trawl 4m steel commercial 3/5 link mat flip up 75mm CE 40mm liner AFT
- Bottle Casts Niskin bottles Plus deepwater CTD
- Vertical Profiler CTD Type 8770

Survey operations were undertaken on 128 stations

84 different species were caught on this survey

本次调查由Cefas发起，作为西北地区底栖鱼类调查（Qtr 3，FSS: NWGFS）的一部分；调查内容涉及爱尔兰海和布里斯托尔海峡年度调查的每个站点，包括捕获量、长度（所有物种）以及生物学数据（选定物种）。调查主要利用研究船和4米宽度的钢制商业3/5链节网具进行拖网作业。收集的数据主要用于构建丰度指数，以支持欧盟数据法规，并作为ICES资助的研究计划的一部分。此外，还包括海底沉积物、杂物、水温、盐度以及声学数据的收集。调查于1998年8月9日至1998年9月29日在Corystes进行。调查期间使用的设备包括：

- 4米宽钢制商业3/5链节网具，翻盖式，75mm CE标准，后部衬垫40mm
- Niskin瓶投放装置，配备深水CTD
- 垂直剖面CTD型8770

调查在128个站点进行。此次调查共捕获84种不同的物种。