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dc.contributor.authorDrljepan, Matea
dc.date.accessioned2014-07-18T15:03:03Z
dc.date.available2014-07-18T15:03:03Z
dc.date.issued2014-07-18
dc.identifier.urihttp://hdl.handle.net/10464/5508
dc.description.abstractSluice Pond is a small (18 ha) and deep (Zmax 20.0 m) partially meromictic, pond in Lynn, Massachusetts that contains a diverse dinocyst record since the early Holocene. High dinocyst concentrations, including morphotypes not previously described, as well as the preservation of several specimens of cellulosic thecae are attributed to low dissolved oxygen (DO) in the basin. The fossil protozoan record supports the interpretation- thecamoebians were unable to colonize the basin until the middle Holocene and only became abundant when the drought-induced lowstand oxygenated the bottom waters. Protozoans tolerant of low DO became abundant through the late Holocene as water levels rose and cultural eutrophication produced a sharp increase in biochemical oxygen demand (BOD) beginning in the 17th century. Recent sediments contain a dominance of Peridinium willei, indicating cultural eutrophication and the planktonic ciliate Codonella cratera and the thecamoebian Cucurbitella tricuspis in the deep basin. Above the chemocline however, a diverse difflugiid thecamoebian assemblage is present.en_US
dc.language.isoengen_US
dc.publisherBrock Universityen_US
dc.subjectdinoflagellateen_US
dc.subjectthecamoebianen_US
dc.subjectMassachusettsen_US
dc.subjecteutrophicationen_US
dc.subjectHoloceneen_US
dc.titleAlgal and protozoan response to Holocene climate change and anthropogenic impact: a case study from Sluice Pond, MAen_US
dc.typeElectronic Thesis or Dissertationen_US
dc.degree.nameM.Sc. Earth Sciencesen_US
dc.degree.levelMastersen_US
dc.contributor.departmentDepartment of Earth Sciencesen_US
dc.degree.disciplineFaculty of Mathematics and Scienceen_US
dc.embargo.termsNoneen_US
refterms.dateFOA2021-07-31T02:10:05Z


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