caa a22 4500 397550650 CHVBK 20180308164749.0 cr unu---uuuuu 161202e199612 xx s 000 0 eng 10.1006/jmsc.1996.0127 doi (NATIONALLICENCE)oxford-10.1006/jmsc.1996.0127 Effects of metal contamination on macrobenthos of two North Sea estuaries [Elektronische Daten] [John A. Hall, Christopher L. J. Frid, Roger K. Proudfoot] Time series of faunal data for the Tyne (1978-1989) and the Tees (1981-1992) estuaries were analysed using Bray-Curtis similarity indices and dendrogram plots, multi-dimensional scaling, and principal components analysis (PCA). These data show that benthic community structure changed during the 1980s. Data on sediment heavy metal concentrations in the Tees estuary for the period 1971-1986 show significant reductions in contamination across this period, and also between-station differences. PCA of faunal data showed grouping of stations into marine, estuarine, and contaminated clusters. PC axis 1 appeared to be controlled by position of sampling site in relation to sources of contamination, and PC axis 2 by salinity. However, sediment metal concentrations were not significantly correlated with PC axis 1 scores. Reasons for this are discussed. Changes in the benthos indicate improving environmental quality, suggesting that clean-up initiatives in both estuaries have been effective. © 1996 International council for the Exploration of the Sea Articles nationallicence benthic macrofauna nationallicence heavy metals nationallicence Tees estuary nationallicence time series nationallicence Tyne estuary nationallicence Hall John A. Dove Marine Laboratory, University of Newcastle upon Tyne Cullercoats, North Shields NE30 4PZ, England, UK aut Frid Christopher L. J. Dove Marine Laboratory, University of Newcastle upon Tyne Cullercoats, North Shields NE30 4PZ, England, UK aut Proudfoot Roger K. Environment Agency Northumbria Area Office, Tyneside House, Newcastle Business Park, Skinnerburn Road, Newcastle upon Tyne, NE4 7AR, England, UK aut ICES Journal of Marine Science Oxford University Press 53/6(1996-12), 1014-1023 1054-3139 53:6<1014 1996 53 icesjms https://doi.org/10.1006/jmsc.1996.0127 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1006/jmsc.1996.0127 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Hall John A. Dove Marine Laboratory, University of Newcastle upon Tyne Cullercoats, North Shields NE30 4PZ, England, UK aut NATIONALLICENCE 700 1- Frid Christopher L. J. Dove Marine Laboratory, University of Newcastle upon Tyne Cullercoats, North Shields NE30 4PZ, England, UK aut NATIONALLICENCE 700 1- Proudfoot Roger K. Environment Agency Northumbria Area Office, Tyneside House, Newcastle Business Park, Skinnerburn Road, Newcastle upon Tyne, NE4 7AR, England, UK aut NATIONALLICENCE 773 0- ICES Journal of Marine Science Oxford University Press 53/6(1996-12), 1014-1023 1054-3139 53:6<1014 1996 53 icesjms Metadata rights reserved CC BY-NC-4.0 http://creativecommons.org/licenses/by-nc/4.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-oxford