New geochemical tools for investigating resource and energy functions at deep-sea cold seeps using amino acid δ 15 N in chemosymbiotic mussels (Bathymodiolus childressi).
Autor: | Vokhshoori NL; Ocean Sciences Department, University of California, Santa Cruz, Santa Cruz, CA, USA., McCarthy MD; Ocean Sciences Department, University of California, Santa Cruz, Santa Cruz, CA, USA., Close HG; Rosenstiel School of Marine and Atmospheric Science, University of Miami, Miami, FL, USA., Demopoulos AWJ; U.S. Geological Survey, Wetland and Aquatic Research Center, Gainesville, FL, USA., Prouty NG; U.S. Geological Survey, Pacific Coastal and Marine Science Center, Santa Cruz, CA, USA. |
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Jazyk: | angličtina |
Zdroj: | Geobiology [Geobiology] 2021 Nov; Vol. 19 (6), pp. 601-617. Date of Electronic Publication: 2021 Jun 18. |
DOI: | 10.1111/gbi.12458 |
Abstrakt: | In order to reconstruct the ecosystem structure of chemosynthetic environments in the fossil record, geochemical proxies must be developed. Here, we present a suite of novel compound-specific isotope parameters for tracing chemosynthetic production with a focus on understanding nitrogen dynamics in deep-sea cold seep environments. We examined the chemosymbiotic bivalve Bathymodiolus childressi from three geographically distinct seep sites on the NE Atlantic Margin and compared isotope data to non-chemosynthetic littoral mussels to test whether water depth, seep activity, and/or mussel bed size are linked to differences in chemosynthetic production. The bulk isotope analysis of carbon (δ 13 C) and nitrogen (δ 15 N), and δ 15 N values of individual amino acids (δ 15 N (© 2021 John Wiley & Sons Ltd.) |
Databáze: | MEDLINE |
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