Abstract
Viviparous black rockfish, Sebastes schlegeli, mate in November, fertilization occurs in the following April and birth of larvae in May at the Miyako Station of the Japan Sea-Farming Association (JASFA). Developmental stages of intra-ovarian embryos in individual female black rockfish reared in an indoor tank were examined using a cannulation method on almost the same day (April 24 or 25) for three successive years. The estimated delivery occurred near the predicted date regardless of the year. This indicates that black rockfish have individually specific annual cycle of fertilization and embryonic development. Understanding individual annual cycles of parturition is very useful for efficient broodstock management and juvenile production for aquaculture and stock enhancement.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: 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.