10/5/2023 0 Comments Costal dredging dataThis suggests that factors other than sediment composition play a significant part in controlling biological community structure on the seabed. There is, however, little evidence of a close correspondence between the distribution of different sediment types and benthic communities in the survey area: comparison of the similarity matrices yields weighted Spearman rank correlation of less than 0.37. Biological resources also fall into relatively distinct groups, or communities, when analysed for species composition and population density, although similarity within the groups is lower than that obtained for the sediments. Sediments in the survey area fall into well-defined groups when analysed by multivariate techniques, indicating similarities and differences which could not be identified by mere inspection of the data. The relationship between biological community structure and particle size composition is investigated in coastal deposits off the southeast of England.
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