Species point records from 1990 NRA Langstone Harbour sublittoral survey

The 1990 Rivers Survey includes a quality classification of estuaries to provide a simple assessment of estuarine quality based on dissolved oxygen, aesthetic criteria, and simple biological observations. In an attempt to satisfy the requirements for the biological part of the classification, the sampling was carried out by the NRA Southern Region and samples passed on to Southampton University for infaunal and sediment analysis. Two 0.1m2 surface area grab samples were taken from each site, and sieved through a 1mm screen. Each sample was preserved in 5-8% saline formaldehyde solution. Duplicate samples were taken for particle size and chemical analysis.

1990年河流调查涵盖了潮汐河口的品质分类，旨在根据溶解氧、美学标准和简单的生物观察结果，对河口质量进行简单评估。为了满足分类中生物部分的要求数据，采样工作由NRA南方区域执行，并收集的样本随后被送往南安普顿大学进行无脊椎动物和沉积物分析。每个采样点采集了两个0.1平方米的表面面积样，并通过1毫米的筛网进行筛选。每个样本均采用5-8%的盐溶液甲醛溶液进行保存。同时，为了进行颗粒尺寸和化学分析，对样本进行了重复取样。