Telomere length change in European sea bass (Dicentrarchus labrax)
T. Horn A B E , N. J. Gemmell C , B. C. Robertson D and C. R. Bridges A
+ Author Affiliations
- Author Affiliations
A Institut für Zoophysiologie, Heinrich-Heine Universität, Düsseldorf, Germany.
B School of Biological Sciences, University of Canterbury, Christchurch, New Zealand.
C Department of Anatomy & Structural Biology, University of Otago, Dunedin, New Zealand.
D Department of Zoology, University of Otago, Dunedin, New Zealand.
E Corresponding author. Email: thorstenhorn@gmx.net
Australian Journal of Zoology 56(3) 207-210 https://doi.org/10.1071/ZO08046
Submitted: 30 April 2008 Accepted: 20 October 2008 Published: 27 November 2008
Abstract
Telomeres, the repetitive sequences found at the end of chromosomes, are observed to shorten with age in birds and mammals, but to date no investigation on changes of telomere length has been made in long-lived marine fish during ageing. We have measured the telomere length of European sea bass (Dicentrarchus labrax) ranging in age from 12 to 94 months. No overall decrease of telomere length could be detected, but a broad range of intraspecies variation was observed. Telomere length change does not appear to be useful for estimating age in this species, but may prove a useful tool for examining individual fitness and response to stress.
Acknowledgement
We thank Bruno Menu and Christian Fauvel at the Station IFREMER, Palavas-Les-Flots, for their support, and Jonci N. Wolff and Iris Vargas-Jentzsch for helpful comments on this manuscript. Ethics approval was obtained from IFREMERE Palavas (approval no.: A-34-192-6). This work was supported by the European Community through the ‘Access to research infrastructures action of the improving human potential program HPRI-CT-2001 00146’ and through Reproduction of the Bluefin Tuna in Captivity (REPRODOTT) Contract Nr. Q5RS 2002-01355.
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