Abstract
Animals collected in Juncus roemerianus and Spartina cynosuroides marshes in St. Louis Bay, Mississippi, were analysed for δ13C to determine their food sources. There were only minor differences in 13C/12C ratios for animals inhabiting marshes dominated by C2-pathway Juncus (δ13C = −26‰) compared to those found in marshes dominated by C4-pathway Spartina (δ13C = −12‰). This was especially evident for three bivalve species collected in the two areas, which showed a tissue δ13C of −27·1 to −27·5‰. Apparently a significant quantity of terrestrial plant material with a mean δ13C of −27‰ is introduced by river flow into the food web of these brackish marshes and provides a major energy source for these marsh invertebrates.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
