2012 University of Plymouth Jersey towed underwater video Epifauna survey

This dataset comprises marine epibenthos (approx. 26 identified taxa derived of Algae, Annelida, Arthropoda, Bryozoa, Chordata, Cnidaria, Echinodermata, Mollusca, Nemertea, Porifera) and associated habitat data (percentage cover maerl, sand, reef and shell) collected during August 2012 as part of an investigation to identify and map maerl beds off the east coast of Jersey, Channel Islands, UK. Jersey’s coastline plays host to a rich variety of marine life, the waters around the island were previously thought to host maerl beds although the location and extent of this ecologically important habitat was unknown. 47 transects were undertaken using a towed high definition video camera, each transect being approximately 200 x 0.5 metres. As a result of this work the maerl beds identified in south east Jersey were subsequently protected from destructive bottom towed fishing activity.本数据集包含海洋底上生物（marine epibenthos）：共鉴定出约26个分类群，涵盖藻类（Algae）、环节动物门（Annelida）、节肢动物门（Arthropoda）、苔藓动物门（Bryozoa）、脊索动物门（Chordata）、刺胞动物门（Cnidaria）、棘皮动物门（Echinodermata）、软体动物门（Mollusca）、纽形动物门（Nemertea）以及多孔动物门（Porifera）；同时配套相关生境数据，即藻灰（maerl）、沙质、礁石以及贝壳的盖度占比。该数据集采集于2012年8月，是英国海峡群岛泽西岛东岸外海域藻灰床识别与制图调查项目的组成部分。 泽西岛海岸线孕育了丰富多样的海洋生物群落，此前学界曾推测该岛周边海域存在藻灰床，但这一具有重要生态价值的生境的具体位置与分布范围此前始终未明确。 本次调查共布设47条样带，采用拖曳式高清摄像机开展数据采集工作，单条样带的规格约为200×0.5米。 依托本次调查所取得的成果，泽西岛东南部海域发现的藻灰床后续被纳入保护范畴，免受破坏性底拖捕捞活动的干扰与破坏。