Assessment of stress and nutritional biomarkers in cultured Octopus vulgaris paralarvae: Effects of geographical origin and dietary regime
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AuthorsGarrido, D. (Diego); Varó, I. (Inmaculada); Morales, A.E. (Amalia Encarnación); Hidalgo, M. C. (María del Carmen); Navarro, J.C. (Juan Carlos); Hontoria, F. (Francisco); Monroig, O. (Oscar); Iglesias, J. (José); Otero-Pinzas, J.J. (Juan José); Estévez, A. (Alicia); Pérez, J. (Josu); Martín, M.V. (María Virginia); Rodriguez, C. (Covadonga); Almansa, E. (Eduardo); Gardenete, G.
Heat shock protein
Nucleic acid ratios
Octopus vulgaris paralarvae
The common octopus (Octopus vulgaris) is a promising species for aquaculture diversification, but massive mortality during the first life-cycle stages (paralarvae) is the main bottleneck for its commercial production in captivity. The aim of this study was to assess stress and nutritional condition biomarkers (HSP70, ROS enzymes and lipid peroxidation) (RNA/DNA, RNA/protein, protein/DNA and protein) in O. vulgaris paralarvae from different geographical origins and fed with Artemia enriched with marine phospholipids or microalgae (control group). To this end paralarvae were cultured for 30 days, in three different centres in Spain (Tarragona-Mediterranean area, Tenerife-Central Atlantic area and Vigo-North Atlantic area), under the same protocol, and fed on Artemia enriched with marine phospholipids (LC60) (Marine Lecithin LC 60®, PhosphoTech Laboratoires) or microalgae (control group). Dry weight and most biomarkers analysed in hatchlings showed significant differences related to their ...
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