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Title: Report on the results of a comparison of data from two surveys of the microfauna of the wash carried out in 1991 and 1993
Author: National Rivers Authority Anglian Region
Document Type: Monograph
This report presents the results of a survey of fourteen stations in the Wash, carried out in 1993. Each of the stations had been sampled previously, in 1991, when they formed part of a larger survey of sixty-six stations covering the major part of the subtidal area of the Wash. Three replicate Day grab samples were taken from each station. Information on the major physical parameters of the sediment and the fauna living within the sediment was collected for each station, together with some information on the sediment chemistry. These data are presented and the physical nature and biology of the stations is described. Comparisons are made with the information obtained from the survey undertaken in 1991. In most cases the recorded levels of heavy metals were lower in the 1993 survey than in the 1991 survey. In general, the biology of the stations was similar in the two years with similar numbers of taxa and individuals being recorded. A number of differences were identified however, and these seem to be associated with marked changes in the proportion of silt and clay in the sediment at a number of stations. The possible significance of such changes to longer term monitoring is briefly discussed.
Publisher: National Rivers Authority
Publication Date: 1995
Publication Place: Peterborough
Subject Keywords: Biological surveysFaunaData collectionSamplingEstuaries
Geographic Keywords: The WashNorfolk
Extent: 7; + tables
Total file downloads: 273

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