Influence of pH on eggs and larvae of silver catfish, Rhamdia quelen (Osteichthyes, Siluriformes)
DOI:
https://doi.org/10.4025/actascibiolsci.v23i0.2705Keywords:
Rhamdia quelen, pH, ovos e larvasAbstract
The influence of pH on silver catfish (Rhamdia quelen, Quoy and Gaimard, 1824) eggs and larvae was evaluated in experiments with 6 treatments (pH 4, 5, 6, 7, 8 and 9) in three spawnings. All eggs in pH 4 died. Same results occurred when temperature fell to 17ºC. There was no difference in fertilization rates of spawnings at the same water temperature. In spawning with higher temperature the lowest fertilization rate was registered at pH 6 and 7. Eclosion time was directly proportional to temperature, whilst after eclosion all eggs at pH 5 died. Mouth-opening time was influenced by temperature. Survival rate was influenced by pH in different water temperature conditionsDownloads
Download data is not yet available.
Downloads
Published
2008-05-09
Issue
Section
Biology Sciences
License
DECLARATION OF ORIGINALITY AND COPYRIGHTS
I Declare that current article is original and has not been submitted for publication, in part or in whole, to any other national or international journal.
The copyrights belong exclusively to the authors. Published content is licensed under Creative Commons Attribution 4.0 (CC BY 4.0) guidelines, which allows sharing (copy and distribution of the material in any medium or format) and adaptation (remix, transform, and build upon the material) for any purpose, even commercially, under the terms of attribution.
Read this link for further information on how to use CC BY 4.0 properly.
How to Cite
Influence of pH on eggs and larvae of silver catfish, Rhamdia quelen (Osteichthyes, Siluriformes). (2008). Acta Scientiarum. Biological Sciences, 23, 477-481. https://doi.org/10.4025/actascibiolsci.v23i0.2705
