2014 JNCC/MSS Solan Bank Reef Drop Down Video Survey

The Joint Nature Conservation Committee (JNCC) and Marine Scotland Science (MSS) undertook an offshore seabed survey of Solan Bank Reef Site of Community Importance (SCI) on the MRV Scotia from 28 October 2014 to 9 November 2014 (Cruise Code: 1714S). The survey was planned with the aim of evaluating whether sponge morphological abundance can be sufficiently measured from drop down camera images and videos, to inform development of a national indicator of 'Good Environmental Status' as part of the UK's obligations under the Marine Strategy Framework Directive (MSFD). Initial baseline data on epifaunal communities and associated environmental variables in the Solan Bank SCI was collected, to assist in determining whether the indicator is viable for UK offshore waters. Data collected on this survey was assessed to determine whether there are sufficient abundances of different sponge morphologies at the site to detect significant change in these communities. 166 combined Drop Frame Drop Down Video (DDV) and Seabird 19 (CTD) transects were completed and Acoustic Doppler Current Profile (ADCP) data from 3 stations were collected.联合自然保护委员会（Joint Nature Conservation Committee, JNCC）与苏格兰海洋科学协会（Marine Scotland Science, MSS）于2014年10月28日至11月9日搭乘斯科蒂亚号海洋调查船（MRV Scotia），对具社区重要性的索兰班克礁场址（Site of Community Importance, SCI）开展近海海底调查，本次航次编号为1714S。 本次调查的规划目标为评估是否可通过投放式相机的图像与视频，充分测算海绵的形态丰度，从而为制定“良好环境状态”国家指标提供支撑，该指标是英国履行《海洋战略框架指令》（Marine Strategy Framework Directive, MSFD）相关义务的组成部分。调查同期采集了索兰班克礁场址内表栖生物群落及相关环境变量的初始基线数据，以辅助判断该指标在英国近海水域是否具备可行性。 本次调查收集的数据经评估，以确定该场址内不同海绵形态类群的丰度是否足以检出这些群落的显著变化。本次调查共完成166条组合式投放框架水下视频（Drop Frame Drop Down Video, DDV）与Seabird 19型温盐深剖面仪（CTD）断面采样，并获取了3个站位的声学多普勒海流剖面仪（Acoustic Doppler Current Profile, ADCP）观测数据。