1978 - 2009 Chris Mandry Lundy North Devon scallop Pecten maximus monitoring scuba dives timed search

Scallop monitoring at Lundy carried out by Chris Mandry from North Devon. The numbers of scallops (over 100mm) collected over a 20 minute period (observations per minute) whilst Scuba diving where recorded each year between 1978 and 2009. Volunteer records of Scallops Monitoring at Lundy between 1978 and 2009. 202 monitoring divers were undertaken between a depth range of 19.1 and 29.9m. Yearly figures are given in observations per dive/ per minute.由北德文郡的克里斯·曼德里（Chris Mandry）开展的伦迪扇贝监测项目：1978年至2009年间，每年均记录了水肺潜水（Scuba diving）过程中，20分钟观测时段内（每分钟观测次数）采集到的体长超过100mm的扇贝数量。 1978年至2009年间的伦迪扇贝监测志愿者记录：共计开展202次监测潜水作业，作业水深范围为19.1米至29.9米；年度统计数据以单次潜水/每分钟观测数的形式给出。