Recent salt marsh development and natural regeneration of reclaimed areas in the Plentzia Estuary, N. Spain

Cearreta, A., Irabien, M.J., Ulibarri, I., Yusta, I., Croudace, I.W. and Cundy, A.B. (2002) Recent salt marsh development and natural regeneration of reclaimed areas in the Plentzia Estuary, N. Spain Estuarine, coastal and shelf science, 54 (5). pp. 863-886. ISSN 0272-7714

Full text not available from this repository.

Abstract

The distribution of benthic foraminifera, a range of elements, and 137Cs and 210Pb were studied in surface sediments and 0·5 m cores from the Plentzia estuarine marshes (northern Spain) to determine the recent development of these previously reclaimed coastal areas. These marshes receive abundant calcium carbonate from regional rocks and this allows calcareous foraminifera to colonize all marsh subenvironments. Good preservation of the original foraminiferal assemblages in the buried sediments is also favoured by high regional background carbonate. Benthic foraminifera are shown to be sensitive to both elevation above mean sea level (exposure) and salinity. Results from the chemical analyses indicate moderate anthropogenic pollution in the estuary, and maximum input seems to have occurred in the 1960s. Recent marsh foraminiferal assemblages are good analogues for the palaeoenvironmental interpretation of historical and Holocene cores, and the combined micropalaeontological/geochemical approach is demonstrated to be successful for the identification of short-term anthropogenic impacts on this coastal region.

Item Type: Journal article
Uncontrolled Keywords: benthic foraminifera; heavy metals; 137Cs and 210Pb dating; sedimentary record; environmental restoration; Plentzia Estuary salt marshes
Subjects: F000 Physical Sciences > F800 Physical Geography and Environmental Sciences > F850 Environmental Sciences
F000 Physical Sciences > F600 Geology
DOI (a stable link to the resource): 10.1006/ecss.2001.0862
Faculties: Faculty of Science and Engineering > School of Environment and Technology > Applied Geosciences
Faculty of Science and Engineering > School of Environment and Technology > Ecology, Landscape and Pollution Management
Faculty of Science and Engineering > School of Environment and Technology
Depositing User: editor environment
Date Deposited: 06 Oct 2006
Last Modified: 22 May 2013 11:33
URI: http://eprints.brighton.ac.uk/id/eprint/146

Actions (login required)

View Item View Item

Downloads

Downloads per month over past year