Abstract
Argopecten nucleus is a small size pectinid, whose farming and hatchery technology have been developed at experimental and pilot scales. In order to assess the effectiveness of biotechnological tools for the improvement of productive traits, the effects of triploidy induction on its growth and survival rates at different developmental stages were analyzed. Thus, zygotes that underwent cold-shock treatment (12 °C for 15 min) and untreated zygotes were cultured in the laboratory during their embryonic, larval and post-larval stages, while juvenile and adults were farmed in sea-based suspended systems. Ploidy condition was verified by cytofluorometry. Growth was similar in induced to triploid and untreated larvae and post-larvae. Similarly, no differences were found for shell growth and wet weight in confirmed triploid juveniles and adults, in comparison to diploid individuals. In addition, although no effects of the triploidy induction treatment was observed on the survival of larvae and post-larvae, triploid juveniles and adults exhibited a lower survival than diploids. Thus, the triploid condition did not to confer advantages in terms of growth; instead it caused a decrease on the survival of juveniles and adults, negatively impacting the biomass yield of this pectinid species.
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.
