RT Journal Article
T1 Proteogenomic Study of the Effect of an Improved Mixed Diet of Live Preys on the Aquaculture of Octopus vulgaris Paralarvae
A1 Varo, Inmaculada
A1 Prado-alvarez, Maria
A1 Ortea, Ignacio
A1 Morales, Amalia E.
A1 Garcia-Fernandez, Pablo
A1 Domingues, Pedro
A1 Tur, Ricardo
A1 Dios, Sonia
A1 Gestal, Camino
K1 Octopus vulgaris
K1 Paralarvae
K1 Diet
K1 Proteomic
K1 Transcriptomic
K1 Growth
K1 Nutrition
K1 Fatty-acid-composition
K1 Carbonic-anhydrase
AB The common octopus is the most demanded cephalopod species for human consumption. Despite important advances realized recently, the main bottleneck for commercial production of the common octopus, Octopus vulgaris, is the mass mortality of paralarvae in the first 15-20 days post-hatching (dph), with the main responsible factors still unknown. Thus, the identification of the limiting culture factors is, therefore, crucial for their aquaculture. This study investigates proteomic and transcriptomic responses of octopus paralarvae fed on an improved live preys-mixed diet (M) compared to an Artemia-based (A) reference diet. M diet resulted in the highest paralarvae specific growth rate obtained to date under culture conditions. This is supported by most of the proteins and genes over-expressed in the M group being linked to the cell cycle and replication, production of structural components, and development of the nervous system. Furthermore, the differential nutritional regulation of several genes and proteins seems to indicate that, instead of fatty acids, the preferred fuels for cephalopods would be proteins and carbohydrates. Also, M diet provides a better nutrient balance, which has allowed carrying out this comparative study in paralarvae under optimal conditions at a more advanced stage of growth (20 dph) than in previous studies. Moreover, the paralarvae culture extended up to 40 dph showed for the first time a proper pre-settlement behavior.
PB Frontiers Research Foundations
YR 2022
FD 2022-02-20
LK http://hdl.handle.net/10668/20600
UL http://hdl.handle.net/10668/20600
LA en
NO Varó I, Prado-Álvarez M, Ortea I, Morales AE, García-Fernández P, Domingues P, et al. Proteogenomic Study of the Effect of an Improved Mixed Diet of Live Preys on the Aquaculture of Octopus vulgaris Paralarvae. Frontiers In Marine Science [Internet]. 17 de febrero de 2022;8
DS RISalud
RD Apr 8, 2025