Tipple, Brett James; Christensen, Stephanie; Ianiri, Hope L; McCarthy, Matthew D; Prouty, Nancy G; Stewart, A Robin; Vokhshoori, Natasha L (2023): A twenty-year record of biogeochemical changes in the San Francisco Bay Estuary: Timeseries of compound specific isotope analyses of amino acids from a benthic filter-feeder, Potamocorbula amurensis [dataset bundled publication]. PANGAEA, https://doi.org/10.1594/PANGAEA.935299
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Abstract:
Amino acids were isolated from the muscle tissue of Potamocorbula amurensis, an invasive clam species, collected from two locations in the northern portion of the San Francisco Bay. Clam specimens were collected biannually in 1997, 2002, and from 2009-2017 at both locations. The carbon and nitrogen isotope values of individual amino acids were measured. Clam specimens were collected at USGS Sites 4.1 (Suisun Bay) and 8.1 (Carquinez Strait) in the San Francisco Bay and processed as described in Stewart et al. (2013; doi:10.3354/meps10503). Amino acids were hydrolyzed from P. amurensis, derivatized, and isolated following Vokhshoori et al. (2013; doi:10.3354/meps10746). Carbon and nitrogen isotope values of individual amino acids were measured following Vokhshoori et al., 2013 and Vokhshoori and McCarthy, 2013 (doi:10.1371/journal.pone.0098087), respectively. The purpose of this study was to assess long-term changes in the biogeochemistry of the San Francisco Bay estuary following the arrival of invasive P. amurensis. Sites were selected both due to species occurrence as well as significantly different salinity ranges. This design allowed for intraspecies and site-specific variations to be explored. Nitrogen isotopes of amino acids were used to isolate variations in nutrient baseline over the twenty-year period. Carbon isotopes of amino acid were utilized to understand long-term changes in dietary sources and/or changes in the baseline carbon isotope value of the estuary's food-web.
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Supplement to:
Tipple, Brett James; Ianiri, Hope L; Prouty, Nancy G; Stewart, A Robin; McCarthy, Matthew D (in prep.): A twenty-year record of biogeochemical changes in the San Francisco Bay Estuary: Timeseries of compound specific isotope analyses of amino acids from a benthic filter-feeder, Potamocorbula amurensis.
Funding:
California Department of Fish and Wildlife, grant/award no. Q1996033: Developing a new molecular isotopic tool to examine Delta food webs
Coverage:
Median Latitude: 38.044350 * Median Longitude: -122.042550 * South-bound Latitude: 38.031600 * West-bound Longitude: -122.140300 * North-bound Latitude: 38.057100 * East-bound Longitude: -121.944800
Date/Time Start: 1997-11-01T00:00:00 * Date/Time End: 2017-05-25T00:00:00
Event(s):
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Size:
2 datasets
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Datasets listed in this bundled publication
- Tipple, BJ; Christensen, S; Ianiri, HL et al. (2023): A twenty-year record of carbon isotope values of amino acids from Potamocorbula amurensis. https://doi.org/10.1594/PANGAEA.935284
- Tipple, BJ; Christensen, S; Ianiri, HL et al. (2023): A two-decade timeseries of baseline nutrient variations in the San Francisco Bay as recorded in nitrogen isotope values of amino acids from benthic filter-feeders. https://doi.org/10.1594/PANGAEA.935285