Abstract

ABSTRACTFive kinds of artificial seawater with similar salinity, pH and osmolarity were prepared with different concentrations of calcium and magnesium ions. The five seawaters in this study are: complete seawater, calcium‐free seawater, half calcium‐free seawater, magnesium‐free seawater, and half magnesium‐free seawater.Dolphin fish (Coryphaena hippurus) spawn in captive tanks without hormone induction. Eggs with developing embryos were removed from the incubation tank prior to hatching and incubated in the media with different concentrations of calcium and magnesium. Survival and hatching percentages of embryonic eggs in different media were recorded and compared. The results showed that both calcium and magnesium are essential for normal development. Reduction or elimination of either of these ions has different effects, resulting in embryonic abnormalities and/or reduced hatching and larval survival.

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 call

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.