Species point records from 1982-83 Bullimore Skomer sublittoral monitoring

A simple, cheap, system has been designed and built which facilitates underwater stereophotography with a single Nikonos camera and standard lens. A monitoring station on the north-east coast of Skomer Island (Dyfed, Wales) with permanent sites at 10, 20 and 25 m below Chart Datum was established during the spring of 1982. The four sites have been stereophotographically sampled at intervals since July 1982. The epibenthic communities present at the sites are briefly described and major changes between 1982 and 1983 documented. The limitations of the stereophotographic system and other techniques employed are identified and recommendations made for improvements.

本研究设计并构建了一种简易、经济的系统，该系统可利用单一尼康奥斯相机及标准镜头进行水下立体摄影。在1982年春季，于斯凯默岛（德伊弗雷德，威尔士）东北海岸建立了监测站，并在海图基准面以下10米、20米及25米处设立了固定观测点。自1982年7月起，对四个观测点进行了定期立体摄影采样。对观测点处的底栖生物群落进行了简要描述，并记录了1982年至1983年间的主要变化。同时，识别了立体摄影系统及其他应用技术的局限性，并提出了改进建议。