Please use this identifier to cite or link to this item:
logo share SHARE logo core CORE BASE
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL | DATACITE

Assessment of stress and nutritional biomarkers in cultured Octopus vulgaris paralarvae: Effects of geographical origin and dietary regime

AuthorsGarrido, Diego; Varó, Inmaculada CSIC ORCID; Morales, A. E.; Hidalgo, M.C. CSIC ORCID ; Navarro, Juan Carlos CSIC ORCID ; Hontoria, Francisco CSIC ORCID ; Monroig, Óscar CSIC ORCID; Iglesias, José; Otero, Juan José; Estévez, Alicia; Pérez, Josu; Martín, Virginia; Rodríguez, Covadonga; Almansa, E.; Cardenete, G.
KeywordsAntioxidant defences
Geographical origin
Heat shock proteins
Marine phospholipids
Nucleic acid ratios
Octopus vulgaris paralarvae
Issue Date1-Feb-2017
CitationAquaculture 468 (Part I): 558-568 (2017)
AbstractThe 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 origin (centre). Fifteen day old paralarvae presented significant differences in specific growth rate (SGR) associated with their dietary regime, and also showed differences in biomarkers associated both with their geographical origin and dietary regime. The results suggest that the SGR of paralarvae were positively influenced by LC60, promoting growth and in agreement with the results of nutritional condition biomarkers (nucleic acids ratios). The antioxidant defences against oxidative damage were also boosted in the LC60 paralarvae group, possibly as a result of the elevated content in highly polyunsaturated fatty acids. In addition, the partial correlations found between biomarkers varied according to diet. However, no positive effect of LC60 on survival was observed. The high variability found among geographical origins, despite the use of the same rearing protocol, highlights the need to clarify the sources of such variability.
Publisher version (URL)
Appears in Collections:(IATS) Artículos

Files in This Item:
File Description SizeFormat
Assessment_of_stress.pdf780,74 kBAdobe PDFThumbnail
Show full item record
Review this work


checked on May 30, 2023


checked on Jun 1, 2023

Page view(s)

checked on Jun 4, 2023


checked on Jun 4, 2023

Google ScholarTM




WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.