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Gulf of Maine bulk and amino acid nitrogen isotope data from 1783-2010 measured from Arctica islandica shells

dataset
posted on 2020-04-03, 20:26 authored by Nina WhitneyNina Whitney
The data presented here are bulk and amino acid nitrogen isotopes and amino acid concentrations measured in Arctica islandica shells collected from the Gulf of Maine between 2009 and 2014. The samples are dated between 1783 and 2010 C.E. using cross-dating techniques. Three different tissue types were analyzed: periostracum, calcium carbonate shell, and adductor muscle. Carbon isotopes of periostracum are also presented. Isotope data were analyzed using an isotope ratio mass spectrometer coupled with a Gas Chromatograph and an Elemental Analyzer for amino acid and bulk analyses, respectively. Amino acid concentration data were analyzed using a Flame Ionization Detector and concentration curves. Trophic position of Arctica islandica through time was determined using a trophic position equation gleaned from the literature.

Funding

Collaborative research: Construction of a continuous, high resolution and absolutely-dated marine chronology from the Gulf of Maine during the last millennium

Directorate for Geosciences

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RUI: Changes in Baseline Conditions in Gulf of Maine Coastal Ecosystems Over the Last 4000 Years

Directorate for Geosciences

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Geological Society of America 2016 Gretchen L. Blechschmidt award

Iowa State University, Department of Geological and Atmospheric Sciences, Bruce Bowen Fellowship

Bates College

Maine Technology Institute, Maine Marine Research Fund

History