Abstract
ABSTRACT We assessed the survival of paralarvae kept in a floating wooden box attached to an oyster extensive cultivation system with no extra food supply. A total of 7700 newly hatched paralarvae were maintained in a 10.5-L floating box (7 cm height × 30 cm width × 50 cm length) covered with a 180-μm mesh net for 14 days with no extra food supply. Skin damages and tentacle deformities were observed in 43% of the paralarvae at 14 days after [...]
Highlights
The common octopus, Octopus cf. vulgaris (Cuvier, 1797), is one of most important commercial fishery resources worldwide
A newly study suggested that the Brazilian Octopus vulgaris is morphologically similar but genetically distinct from vulgaris-like species and the so-called Octopus vulgaris Type II (Amor et al, 2017)
Temperature was kept at 23.6±0.9 °C and salinity at 34.5±0.5 psu. These values are within the recommended range to ensure survival and growth of the common octopus paralarvae, since they closely resemble those observed in the species natural environment (Boyle, 1991)
Summary
The common octopus, Octopus cf. vulgaris (Cuvier, 1797), is one of most important commercial fishery resources worldwide. The lack of a standardized culture system and the absence of a balanced diet that fulfills the paralarval nutritional requirements are among the main factors contributing to such mortalities (Iglesias and Fuentes, 2014) In this context, commercial culture of O. cf vulgaris has been performed by growing wild-captured subadults using bycatch, in suspended cages in the sea, as currently performed in Galicia coast (northwest Spain) (García-García et al, 2014). Commercial culture of O. cf vulgaris has been performed by growing wild-captured subadults using bycatch, in suspended cages in the sea, as currently performed in Galicia coast (northwest Spain) (García-García et al, 2014) Such technique is unsustainable, and efforts should concentrate on the development of a rearing protocol for the planktonic paralarval phase of the species, avoiding overfishing of natural populations. Better survival and growth performance are still required to scale-up the activity to a commercial level
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
