Spartina alterniflora δ15N as an indicator of estuarine nitrogen load and sources in Cape Cod estuaries

dc.contributor.author Kinney, Erin L.
dc.contributor.author Valiela, Ivan
dc.date.accessioned 2018-11-07T15:28:35Z
dc.date.available 2020-04-05T08:52:09Z
dc.date.issued 2018-04
dc.description © The Author(s), 2018. This is the author's version of the work and is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in Marine Pollution Bulletin 131A (2018): 205-211, doi:10.1016/j.marpolbul.2018.04.006. en_US
dc.description.abstract δ15N values of coastal biota have been used as indicators of land-derived N-loads and sources to estuarine systems and should respond predictably to differences in nitrogen and be sensitive to changes in nitrogen, preferably at the low end of eutrophication. We evaluated Spartina alterniflora as an indicator species of N-loads and sources of δ15N throughout the growing season, and compared the average δ15N to estuarine nitrogen loads and sources for several estuaries receiving different watershed N-loads. δ15N of S. alterniflora differed among estuaries, and these differences were maintained even as δ15N declined during the end of the growing season. δ15N values increased with increasing nitrogen loads to the subestuaries and with increasing percent wastewater-derived nitrogen load. The response of δ15N of S. alterniflora to increased N loads was greater at low N-loads, and decreased as N-loads increased, suggesting that S. alterniflora is a good indicator of incipient nitrogen load. en_US
dc.description.embargo 2020-04-05 en_US
dc.description.sponsorship This study was supported by a NOAA National Estuarine Research Reserve Graduate Research Fellowship, Grant No. NA05NOS4201036. en_US
dc.identifier.uri https://hdl.handle.net/1912/10687
dc.language.iso en_US en_US
dc.relation.uri https://doi.org/10.1016/j.marpolbul.2018.04.006
dc.rights Attribution-NonCommercial-NoDerivatives 4.0 International *
dc.rights.uri http://creativecommons.org/licenses/by-nc-nd/4.0/ *
dc.subject Waste water en_US
dc.subject Seasonality en_US
dc.subject Salt marsh en_US
dc.subject New England en_US
dc.title Spartina alterniflora δ15N as an indicator of estuarine nitrogen load and sources in Cape Cod estuaries en_US
dc.type Preprint en_US
dspace.entity.type Publication
relation.isAuthorOfPublication 4c035cf4-ff8f-41da-875e-dcc5a7bda4ca
relation.isAuthorOfPublication 62f7f838-c88c-42f6-a658-2d63a1d58d5c
relation.isAuthorOfPublication.latestForDiscovery 4c035cf4-ff8f-41da-875e-dcc5a7bda4ca
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