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dc.contributor.authorBayarri, Maria Joseen_UK
dc.contributor.authorMunoz-Cueto, Jose Antonioen_UK
dc.contributor.authorLopez-Olmeda, Jose Fen_UK
dc.contributor.authorVera, LMen_UK
dc.contributor.authorRol De Lama, Maria Angelesen_UK
dc.contributor.authorMadrid, Juan Antonioen_UK
dc.contributor.authorSanchez-Vazquez, F Javieren_UK
dc.description.abstractThe daily locomotor and melatonin rhythms of the Senegal sole, a benthonic species of increasing interest in aquaculture, are still unknown, despite the fact that such knowledge is of prime importance for optimising its production. The aim of the present research was therefore to investigate the daily rhythms of locomotor activity and melatonin in the Senegal sole. For this purpose, the individual locomotor activity rhythms of fish were registered using a photocell. Plasma and ocular melatonin rhythms were studied in animals reared in circular tanks placed in earth under an LD 12:12 light regime and 16-18 °C temperature range (spring equinox). Blood and eye samples were taken every 3 h during a complete 24-h cycle. The impact of a light pulse in the middle of the dark period (MD) on plasma melatonin was also studied. Locomotor activity was mainly nocturnal, with 84.3% of the total activity occurring during darkness. The levels of plasma melatonin were higher at night (55 pg/ml) than during the day (2 pg/ml), while ocular melatonin levels appeared to be arrhythmic. Both weight and melatonin content were found to be significantly higher in the left eye in relation to the right eye. A light pulse in MD provoked a significant decrease in plasma melatonin levels. In summary, photoperiod is a key factor in synchronising locomotor activity and melatonin rhythms in the Senegal sole, whose nocturnal habits should be taken into account for their rearing by aquaculture.en_UK
dc.relationBayarri MJ, Munoz-Cueto JA, Lopez-Olmeda JF, Vera L, Rol De Lama MA, Madrid JA & Sanchez-Vazquez FJ (2004) Daily locomotor activity and melatonin rhythms in Senegal sole (Solea senegalensis). Physiology and Behavior, 81 (4), pp. 577-583.
dc.rightsThe 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.en_UK
dc.subjectlocomotor activity rhythmsen_UK
dc.subjectdaily rhythmsen_UK
dc.subjectSolea senegalensisen_UK
dc.subjectlight pulseen_UK
dc.titleDaily locomotor activity and melatonin rhythms in Senegal sole (Solea senegalensis)en_UK
dc.typeJournal Articleen_UK
dc.rights.embargoreason[Physiol and Behav 2004.pdf] The publisher does not allow this work to be made publicly available in this Repository therefore there is an embargo on the full text of the work.en_UK
dc.citation.jtitlePhysiology and Behavioren_UK
dc.type.statusVoR - Version of Recorden_UK
dc.contributor.affiliationUniversity of Murciaen_UK
dc.contributor.affiliationUniversity of Cadizen_UK
dc.contributor.affiliationUniversity of Murciaen_UK
dc.contributor.affiliationInstitute of Aquacultureen_UK
dc.contributor.affiliationUniversity of Murciaen_UK
dc.contributor.affiliationUniversity of Murciaen_UK
dc.contributor.affiliationUniversity of Murciaen_UK
rioxxterms.typeJournal Article/Reviewen_UK
local.rioxx.authorBayarri, Maria Jose|en_UK
local.rioxx.authorMunoz-Cueto, Jose Antonio|en_UK
local.rioxx.authorLopez-Olmeda, Jose F|en_UK
local.rioxx.authorVera, LM|0000-0003-0999-055Xen_UK
local.rioxx.authorRol De Lama, Maria Angeles|en_UK
local.rioxx.authorMadrid, Juan Antonio|en_UK
local.rioxx.authorSanchez-Vazquez, F Javier|en_UK
local.rioxx.projectInternal Project|University of Stirling|
local.rioxx.filenamePhysiol and Behav 2004.pdfen_UK
Appears in Collections:Aquaculture Journal Articles

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