Uristes sp. length frequency data from the Molloy Deep

Concentrations of scavengers attracted by bait in the deep sea are documented by time-lapse photography and results of baited traps. During a remotely operated vehicle deployment in the Molloy Deep, the deepest depression of the Fram Strait, the carcass of a natant decapod, Pasiphaea tarda Krøyer, 1845, was discovered at 79°08.4'N and 002°49.85'E in a depth of 5,551 m. The carcass was covered by hundreds of individuals of Uristes sp., a scavenging lysianassoid amphipod. After documentation of this event, both the carcass and the majority of amphipods were collected. This is the first reported observation and sampling of an ongoing feeding process of scavengers on a natural food fall in the deep sea.

本数据集通过延时摄影（time-lapse photography）与诱饵诱捕器（baited traps）的采样结果，记录了深海中受诱饵吸引的食腐生物的种群聚集浓度。在弗拉姆海峡最深洼地莫洛伊海渊（Molloy Deep）开展遥控无人潜水器（Remotely Operated Vehicle）部署作业期间，研究人员于北纬79°08.4'、东经002°49.85'、水深5551米处，发现了一只游泳十足目动物——迟游虾（Pasiphaea tarda Krøyer, 1845）的尸体。该尸体被数百只Uristes属食腐利西阿纳类端足类（lysianassoid amphipod）所覆盖。完成该观测事件的记录后，该尸体与绝大多数该端足类样本均被采集回收。本次研究首次报道了深海中食腐生物依托天然食物沉降（natural food fall）开展的持续取食过程的现场观测与采样工作。