AN ASSESSMENT OF VIABILITY FOR A NEW BIOINDICATOR OF HEAVY METAL POLLUTION IN THE SOUTHERN OCEAN: POTENTIAL OF THE ANTARCTIC SEASTAR ODONTASTER VALIDUS COMPARED TO THE WELL-STUDIED ANTARCTIC CLAM LATERNULA ELLIPTICA
Concentrations of Fe, Zn, Cu. Cd, Mn, Cr, Pb, Co and N i were determined from acid digests of four tissue types of the Antarctic omnivorious seastar Odontaster validus and five tissue types of the clam Laternula elliptica, collected from four sites in the vicinity of Rothera Base, Adelaide Island, A...
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ftunivplympearl:oai:pearl.plymouth.ac.uk:10026.2/384 2023-05-15T13:04:02+02:00 AN ASSESSMENT OF VIABILITY FOR A NEW BIOINDICATOR OF HEAVY METAL POLLUTION IN THE SOUTHERN OCEAN: POTENTIAL OF THE ANTARCTIC SEASTAR ODONTASTER VALIDUS COMPARED TO THE WELL-STUDIED ANTARCTIC CLAM LATERNULA ELLIPTICA Webb, Alison Louise Faculty of Science 2006 http://hdl.handle.net/10026.2/384 unknown University of Plymouth http://hdl.handle.net/10026.2/384 Thesis 2006 ftunivplympearl 2021-03-09T18:34:29Z Concentrations of Fe, Zn, Cu. Cd, Mn, Cr, Pb, Co and N i were determined from acid digests of four tissue types of the Antarctic omnivorious seastar Odontaster validus and five tissue types of the clam Laternula elliptica, collected from four sites in the vicinity of Rothera Base, Adelaide Island, Antarctica during the austral summer 2005-2006. Significantly higher concentrations of six of these metals were determined within different body compartments of O. validus: Fe and Zn within the digestive tract; Co and N i within the skeleton; Cd within the gonad; Cr from the cardiac stomach. The kidney o f L. elliptica contained significantly higher concentrafions of Fe, Zn, Cd, Mn, Pb, Co and N i than the other organs. It was determined that O. validus would make a good long-term indicator of metal contamination within Antarctic waters. Metal exposure in both organisms was determined to be as a result of background lithogenic metal concentrations, as opposed to serious contamination from the research base. Metals were not seen to biomagnify between L. elliptica and O. validus, although metals were partitioned differently among the body compartments of both species. Cd concentrations in O. validus (64.1 pg g'' at South Cove) were far higher than L. elliptica (6.16 pg g'' at South Cove), and it was concluded these high Cd concentrations were present in dissolved form from the influence of the Antarctic Divergence on coastal regions. High Cu (24.5 pg g'') levels were located from the site adjacent to the runway of Rothera Base, a situation already identified in the literature, although as concentrations were much lower than those seen previously, it was concluded that this survey witnessed the end of this contamination event. Faculty of Science, The British Antarctic Survey, NERC, Cambridge, UK Thesis Adelaide Island Antarc* Antarctic Antarctica British Antarctic Survey Southern Ocean PEARL (Plymouth Electronic Archiv & ResearchLibrary, Plymouth University) Antarctic Southern Ocean The Antarctic Austral Rothera ENVELOPE(-68.130,-68.130,-67.568,-67.568) Adelaide Island ENVELOPE(-68.914,-68.914,-67.762,-67.762) South Cove ENVELOPE(-56.115,-56.115,50.050,50.050) |
institution |
Open Polar |
collection |
PEARL (Plymouth Electronic Archiv & ResearchLibrary, Plymouth University) |
op_collection_id |
ftunivplympearl |
language |
unknown |
description |
Concentrations of Fe, Zn, Cu. Cd, Mn, Cr, Pb, Co and N i were determined from acid digests of four tissue types of the Antarctic omnivorious seastar Odontaster validus and five tissue types of the clam Laternula elliptica, collected from four sites in the vicinity of Rothera Base, Adelaide Island, Antarctica during the austral summer 2005-2006. Significantly higher concentrations of six of these metals were determined within different body compartments of O. validus: Fe and Zn within the digestive tract; Co and N i within the skeleton; Cd within the gonad; Cr from the cardiac stomach. The kidney o f L. elliptica contained significantly higher concentrafions of Fe, Zn, Cd, Mn, Pb, Co and N i than the other organs. It was determined that O. validus would make a good long-term indicator of metal contamination within Antarctic waters. Metal exposure in both organisms was determined to be as a result of background lithogenic metal concentrations, as opposed to serious contamination from the research base. Metals were not seen to biomagnify between L. elliptica and O. validus, although metals were partitioned differently among the body compartments of both species. Cd concentrations in O. validus (64.1 pg g'' at South Cove) were far higher than L. elliptica (6.16 pg g'' at South Cove), and it was concluded these high Cd concentrations were present in dissolved form from the influence of the Antarctic Divergence on coastal regions. High Cu (24.5 pg g'') levels were located from the site adjacent to the runway of Rothera Base, a situation already identified in the literature, although as concentrations were much lower than those seen previously, it was concluded that this survey witnessed the end of this contamination event. Faculty of Science, The British Antarctic Survey, NERC, Cambridge, UK |
author2 |
Faculty of Science |
format |
Thesis |
author |
Webb, Alison Louise |
spellingShingle |
Webb, Alison Louise AN ASSESSMENT OF VIABILITY FOR A NEW BIOINDICATOR OF HEAVY METAL POLLUTION IN THE SOUTHERN OCEAN: POTENTIAL OF THE ANTARCTIC SEASTAR ODONTASTER VALIDUS COMPARED TO THE WELL-STUDIED ANTARCTIC CLAM LATERNULA ELLIPTICA |
author_facet |
Webb, Alison Louise |
author_sort |
Webb, Alison Louise |
title |
AN ASSESSMENT OF VIABILITY FOR A NEW BIOINDICATOR OF HEAVY METAL POLLUTION IN THE SOUTHERN OCEAN: POTENTIAL OF THE ANTARCTIC SEASTAR ODONTASTER VALIDUS COMPARED TO THE WELL-STUDIED ANTARCTIC CLAM LATERNULA ELLIPTICA |
title_short |
AN ASSESSMENT OF VIABILITY FOR A NEW BIOINDICATOR OF HEAVY METAL POLLUTION IN THE SOUTHERN OCEAN: POTENTIAL OF THE ANTARCTIC SEASTAR ODONTASTER VALIDUS COMPARED TO THE WELL-STUDIED ANTARCTIC CLAM LATERNULA ELLIPTICA |
title_full |
AN ASSESSMENT OF VIABILITY FOR A NEW BIOINDICATOR OF HEAVY METAL POLLUTION IN THE SOUTHERN OCEAN: POTENTIAL OF THE ANTARCTIC SEASTAR ODONTASTER VALIDUS COMPARED TO THE WELL-STUDIED ANTARCTIC CLAM LATERNULA ELLIPTICA |
title_fullStr |
AN ASSESSMENT OF VIABILITY FOR A NEW BIOINDICATOR OF HEAVY METAL POLLUTION IN THE SOUTHERN OCEAN: POTENTIAL OF THE ANTARCTIC SEASTAR ODONTASTER VALIDUS COMPARED TO THE WELL-STUDIED ANTARCTIC CLAM LATERNULA ELLIPTICA |
title_full_unstemmed |
AN ASSESSMENT OF VIABILITY FOR A NEW BIOINDICATOR OF HEAVY METAL POLLUTION IN THE SOUTHERN OCEAN: POTENTIAL OF THE ANTARCTIC SEASTAR ODONTASTER VALIDUS COMPARED TO THE WELL-STUDIED ANTARCTIC CLAM LATERNULA ELLIPTICA |
title_sort |
assessment of viability for a new bioindicator of heavy metal pollution in the southern ocean: potential of the antarctic seastar odontaster validus compared to the well-studied antarctic clam laternula elliptica |
publisher |
University of Plymouth |
publishDate |
2006 |
url |
http://hdl.handle.net/10026.2/384 |
long_lat |
ENVELOPE(-68.130,-68.130,-67.568,-67.568) ENVELOPE(-68.914,-68.914,-67.762,-67.762) ENVELOPE(-56.115,-56.115,50.050,50.050) |
geographic |
Antarctic Southern Ocean The Antarctic Austral Rothera Adelaide Island South Cove |
geographic_facet |
Antarctic Southern Ocean The Antarctic Austral Rothera Adelaide Island South Cove |
genre |
Adelaide Island Antarc* Antarctic Antarctica British Antarctic Survey Southern Ocean |
genre_facet |
Adelaide Island Antarc* Antarctic Antarctica British Antarctic Survey Southern Ocean |
op_relation |
http://hdl.handle.net/10026.2/384 |
_version_ |
1766350574691811328 |