Habitat point records from 1991 NRA North Yorkshire and Humberside littoral rock survey

Biological surveys of seven rocky shores along Yorkshire's coastline were carried out in the spring and summer of 1991. Most of the shores had conservation value and were designated under the various categories Heritage Coast, SSSI and North York Moors National Park. Public access to all the sites was relatively easy. The topography of the shores was varied, although the presence of a wave cut platform was a fairly consistent feature. A large number of species were recorded during the surveys, including some which are considered to be rare or of a south western distribution. However the biological communities were fairly homogenous throughout the sites, differing largely in the extent and degree of algal cover and the density of Littorina littorea populations. The species richness of the sites appeared to correlate well with the complexity of the shore, wave exposure and turbidity. Some of the sites appeared to be mildly affected by raw sewage discharges, but none were as degraded as the rocky shores between Scalby Ness and Jackson's Bay since the construction of the Scarborough's short sea outfalls.

1991年春夏季，对约克郡海岸线的七处岩石海岸进行了生物调查。大部分海岸具有保护价值，并被划分为各类遗产海岸、SSSI（特殊科学兴趣地点）和北约克摩尔国家公园。公众对这些地点的访问相对便利。海岸地形各异，尽管存在海蚀平台这一相对一致的特征。调查期间记录了大量的物种，包括一些被认为稀少或具有西南部分布的物种。然而，生物群落在整个地点上相对同质，主要差异在于藻类覆盖的广度和程度以及Littorina littorea种群密度。这些地点的物种丰富度似乎与海岸的复杂性、波浪暴露度和浑浊度密切相关。一些地点似乎受到未处理污水排放的轻微影响，但没有任何地点像斯卡伯勒短期海上溢出物建设后斯卡利比恩斯和杰克逊湾之间的岩石海岸那样退化。