Isotopic change throughout the life history of a Lake Malawi cichlid fish


Genner, M.J., Hawkins, S.J. and Turner, G.F. (2003) Isotopic change throughout the life history of a Lake Malawi cichlid fish. Journal of Fish Biology, 62, (4), 907-917. (doi:10.1046/j.1095-8649.2003.00085.x).

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Description/Abstract

Clear changes in body size-isotope (carbon and nitrogen) trajectories of Pseudotropheus callainos. a cichlid belonging to the endemic haplochromine species radiation in Lake Malawi, were found that corresponded with an ontogenetic dietary shift from predominantly planktonic to benthic food sources. The results indicated that dietary switching was a proximate cause of isotopic change over the life history of this species and confirmed the value of stable isotope signatures for inferring diet. The data also illustrated that possible variability of signatures over the life history of a species should be considered when using stable isotope ratios to investigate fine-scale ecological differentiation among taxa.

Item Type: Article
ISSNs: 0022-1112 (print)
Related URLs:
Keywords: cichlid fish, diet, ecology, lake malawi, stable isotopes
Subjects: Q Science > QH Natural history > QH301 Biology
Q Science > QL Zoology
Divisions: University Structure - Pre August 2011 > School of Biological Sciences
University Structure - Pre August 2011 > School of Ocean & Earth Science (SOC/SOES)
ePrint ID: 57731
Date Deposited: 08 Aug 2008
Last Modified: 27 Mar 2014 18:40
Contact Email Address: genner@science.uva.nl
URI: http://eprints.soton.ac.uk/id/eprint/57731

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