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dc.contributor.authorVera, LMen_UK
dc.contributor.authorMadrid, Juan Antonioen_UK
dc.contributor.authorSanchez-Vazquez, F Javieren_UK
dc.description.abstractSharpsnout seabream is a marine teleost of increasing interest for Mediterranean aquaculture, but there is still a lack of information regarding its circadian organization. In this study, we have investigated sharpsnout seabream locomotor activity, feeding and plasma melatonin daily rhythms under a 12:12-h LD cycle, as well as the persistence of locomotor activity circadian rhythmicity under constant light (LL) conditions. When submitted to an LD cycle, most sharpsnout seabream displayed a diurnal locomotor pattern, with an average 74% of activity recorded during daytime. However, along the experiment 40% of fish spontaneously changed their locomotor rhythm phasing and became nocturnal. Feeding behaviour, nevertheless, remained strictly diurnal in all cases, with 97% of food demands being made during the light period. Free-running locomotor rhythms were recorded in one third of the fish kept under LL. Daily plasma melatonin levels displayed a rhythmic profile, with low daytime values (111 pg/ml) and high nighttime concentrations (791 pg/ml). Taken together, these results evidence a high degree of plasticity for sharpsnout seabream activity patterns, as well as phasing independence of locomotor and feeding rhythms. Finally, the existence of a well-defined daily rhythm of plasma melatonin was found.en_UK
dc.relationVera L, Madrid JA & Sanchez-Vazquez FJ (2006) Locomotor, feeding and melatonin daily rhythms in sharpsnout seabream (Diplodus puntazzo). Physiology and Behavior, 88 (1-2), pp. 167-172.
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.subjectsharpsnout seabreamen_UK
dc.subjectlocomotor activityen_UK
dc.subjectfeeding behavioren_UK
dc.titleLocomotor, feeding and melatonin daily rhythms in sharpsnout seabream (Diplodus puntazzo)en_UK
dc.typeJournal Articleen_UK
dc.rights.embargoreason[Physiol and Behav 2006.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.affiliationInstitute of Aquacultureen_UK
dc.contributor.affiliationUniversity of Murciaen_UK
dc.contributor.affiliationUniversity of Murciaen_UK
rioxxterms.typeJournal Article/Reviewen_UK
local.rioxx.authorVera, LM|0000-0003-0999-055Xen_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 2006.pdfen_UK
Appears in Collections:Aquaculture Journal Articles

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