Abstract
The objective of this study was to determine the influence ofwater pH (5.5, 6.0, 7.0, 8.0, and 8.5) on survival and growth ofsilver catfsh (Rhamdia quelen) larvae. Larvae were obtained frominduced spawning in November and maintained under controlledconditions of 25 (1) °C using a water re-use system incontinuously aerated 40 L polyethylene tanks (350 larvae/tank).Larvae were fed until satiation six times a day. At days 0, 7, 14,and 21 and after yolk absorption, 10 larvae from each group wererandomly chosen to evaluate length, weight, and specific growthrate (SGR). Length, weight, survival, and biomass at the end of 21days were significantly higher at pH 8.0 and 8.5. As expected,specific growth rate decreased with time. These results suggest that 8.0–8.5 isthe best pH range for survival and growth of the larvae of thisspecies.
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.
