ANSTO Publications Online >
Conference Publications >
Conference Publications >

Please use this identifier to cite or link to this item: http://apo.ansto.gov.au/dspace/handle/10238/6492

Title: Diet-tissue discrimination of δ13C and δ15N in freshwater crustacean
Authors: Mazumder, D
Johansen, M
Davis, E
Keywords: CARBON
NITROGEN
ISOTOPES
CRUSTACEANS
DIET
STOMACH
Issue Date: 10-Jul-2013
Publisher: University of Western Australia
Citation: Mazumder, D., M, J., & Davis, E. (10-12 July, 2013). Diet-tissue discrimination of δ13C and δ15N in freshwater crustacean. Paper presented at the 12th Australasian Environmental Isotope Conference, University of Western Australia, Perth.
Abstract: Knowledge and understanding of discrimination factors (d13C and d15N) for carbon-13(d13C) and nitrogen-15 (d15N) are important when using stable isotopes for trophodynamic studies. We performed a controlled laboratory diet-switch experiment to examine diet–tissue discrimination factors for muscle, carapace and stomach tissues of freshwater crustacean, Cherax destructor. A range of diets of differing d13C and d15N isotopic values were fed to C. destructor until equilibrium. For the various tissue types, d15N discrimination was highest in muscle, followed by carapace then stomach, whilst d13C was highest in carapace followed by stomach, then muscle. The resulting diet–muscle discrimination factors were similar to, but varied from the 1‰ for d13C and 3.4‰ for and d15N values that are often used for diet-muscle discrimination. The results highlight variation among differing diet types, and consumer tissue types as applied to stable carbon and nitrogen isotopes in the food-web studies.
URI: http://www.bukibuki.eu/aus-envisotope/AEIC2013_web_files/AEIC12abstracts_book2013.pdf
http://apo.ansto.gov.au/dspace/handle/10238/6492
Appears in Collections:Conference Publications

Files in This Item:

File Description SizeFormat
MAZUMER_12th_Australasian_Environment_Isotope_Conference.pdf2.75 MBAdobe PDFView/Open

Items in APO are protected by copyright, with all rights reserved, unless otherwise indicated.

 

Valid XHTML 1.0! DSpace Software Copyright © 2002-2010  Duraspace - Feedback