Species point records from 1978-79 SWBSS Lundy sublittoral survey

This report describes the results of surveys carried out around Lundy in 1978 and 1979. 50 sites were surveyed off the 13 km of coastline. Data collected in some surveys previous to 1978 have also been used in compiling this report. Lists of species present and the main habitats observed are presented. The distribution of species on rock in relation to depth is described and the main features noted. The distribution of habitats and species around Lundy is brought about by mainly by the influence of wave action and tidal streams which vary widely around the island. 29 species present around Lundy are listed as rare or unusual in the context of the sublittoral ecosystems in the British Isles. Many of these species were present in large numbers at some locations around Lundy. Within the context of the SWBSS, Lundy is considered to be the richest and most scientifically interesting area studied. It is suggested that further work on sublittoral ecosystems at Lundy should be mainly concerned with data consolidation for the wide range of studies carried out in recent years. However, a programme of work aimed at establishing sites surveillance of change and initiating a programme of recording is suggested as the next stage of work. Records currently considered sensitive have been removed from this dataset.

本报告详述了于1978年至1979年在Lundy岛周边进行的调查结果。在长达13公里的海岸线附近共调查了50个地点。此外，本报告还利用了1978年之前部分调查所收集的数据。报告展示了所出现物种的清单及观察到的主要栖息地。描述了物种在岩石上的分布与水深的关系，并记录了主要特征。Lundy岛周边栖息地和物种的分布主要受波浪作用和潮汐流的影响，而这些影响在岛周围存在显著差异。在Lundy岛周边出现的29种物种，在英吉利海峡的亚潮带生态系统中被视为稀有或罕见。其中许多物种在Lundy岛的一些地点数量庞大。在西南生物多样性调查（SWBSS）的背景下，Lundy岛被认为是研究最为丰富且科学价值最高的区域。建议针对Lundy岛亚潮带生态系统的研究，应主要集中于近年来的广泛研究数据的整合。然而，提议开展一项旨在建立变化监测站点并启动记录计划的工作项目作为下一阶段的工作。目前认为敏感的记录已从本数据集中移除。