Please use this identifier to cite or link to this item: http://hdl.handle.net/1893/19627
Appears in Collections:Aquaculture Journal Articles
Peer Review Status: Refereed
Title: Daily rhythms of blood glucose differ in diurnal and nocturnal European sea bass (Dicentrarchus labrax L.) undergoing seasonal phase inversions
Authors: Del, Pozo Ana
Vera, LM
Montoya, Ander
Sanchez-Vazquez, F Javier
Contact Email: luisa.veraandujar@stir.ac.uk
Keywords: Dualism
Self-feeding
Annual rhythm
Circadian rhythm
Issue Date: Jun-2013
Publisher: Springer
Citation: Del Pozo A, Vera L, Montoya A & Sanchez-Vazquez FJ (2013) Daily rhythms of blood glucose differ in diurnal and nocturnal European sea bass (Dicentrarchus labrax L.) undergoing seasonal phase inversions, Fish Physiology and Biochemistry, 39 (3), pp. 695-699.
Abstract: Sea bass change their feeding rhythms from diurnal to nocturnal in winter, returning to diurnal feeding in spring. Despite behavioral data, the physiological changes that take place during such changes remain unexplored. In this paper, blood glucose rhythms of European sea bass with diurnal/nocturnal self-feeding rhythms were investigated during phase inversions of their feeding behavior (in winter and spring) when both diurnal and nocturnal fish coexist. Blood glucose showed daily variations in both seasons (ANOVA, p < 0.03), fitting a cosine function (COSINOR, p < 0.05) in all cases, except in diurnal fish in spring. The average blood glucose levels of nocturnal fish in winter (2.67 ± 0.09 mmol/l, mean ± SEM) were significantly (t test, p < 0.01) higher than in spring (2.20 ± 0.08 mmol/l), while they were similar (~2.25 mmol/l) in diurnal fish in both seasons. These findings revealed for the first time insights into the seasonal physiological changes that accompany changes in behavioral rhythms in diurnal and nocturnal sea bass.
Type: Journal Article
URI: http://hdl.handle.net/1893/19627
DOI Link: http://dx.doi.org/10.1007/s10695-012-9732-z
Rights: The publisher does not allow this work to be made publicly available in this Repository. Please use the Request a Copy feature at the foot of the Repository record to request a copy directly from the author. You can only request a copy if you wish to use this work for your own research or private study.
Affiliation: University of Murcia
Aquaculture
University of Murcia
University of Murcia

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