Bivalve tissue as a carbon and nitrogen isotope baseline indicator in coastal ecosystems

Spatial variability of the stable isotope (δ15N) composition in two freshwater bivalves (Corbicula flumineaandElliptio complanata)

“…Corbicula fluminea and E. complanata showed a capacity to reflect terrestrialderived nitrogen source water, which is similar to relationships in estuarine systems (Piola et al 2006;Bucci et al 2007;Fukumori et al 2008). Specifically, 15 N bivalve tissue values corresponded with high nitrate and 15 N DIN values from the agricultural (Bear Creek) compared to the urban and forested sites.…”

Analysis of δ15N values in mollusk shell organic matrix by elemental analysis/isotope ratio mass spectrometry without acidification: an evaluation and effects of long‐term preservation

“…The large sample size needed for shell material results in significant time-averging, while tissues can average weeks to months, e.g. Paulet et al [37] and Fukumori et al [38] Different mollusk species probably have different amounts of organic matter and thus %N; some concentration method (e.g., acid dissolution of shell carbonate) may be required for species with very low %N in their shells when very precise d 15 N data are needed. Moreover, although d…”

The Comparison of δ13C Values of a Deposit- and a Suspension-Feeder Bio-Indicates Benthic vs. Pelagic Couplings and Trophic Status in Contrasted Coastal Ecosystems

“…δ 13 C and δ 15 N values of long-lived (between 2 to 5 years) benthic primary consumers such as suspension-feeder bivalves with moderate tissue turnover rates (weeks to months depending on the tissue) were shown to be adequate to assess the planktonic compartment (Gustafson et al 2007;Fukumori et al 2008;Lefebvre et al 2009a;Grangeré et al 2012). The strict suspension-feeder C. gigas (Thunberg 1793) lives at the sediment-water interface which makes them a useful bioindicator of the POM benthic-pelagic coupling.…”