Effect of Stocking Density on the Growth of Siganus rivulatus Fingerling Reared in Tanks
Abstract
The study aimed to investigate the effect of stocking density on the growth of Siganus rivulatus, caught from the coastal area adjacent to the Higher Institute for Marine Research (35o35′30″N, 35o44′31″E). After acclimation, fingerlings were distributed into 6 strengthened polyethylene tanks 250 liters each under three densities 150 - 100 - 50 fish/tank with replicates. Fingerlings were fed twice a day to satiation and the hydrological features of the water were taken every day and the fish weights three times during the study period (70 days). The results showed that there was no significant difference between the 50 and 100 fish/tank densities (P>0.05), which gave an increase in weight by 6.57 and 6.5g/individual, respectively and had a feed conversion ratio of 2.47 and 2.49, respectively. On contrast, there was a significant difference between these two densities and that of 150 fish/tank (P<0.05), which had the lowest growth rate and lowest weight gain (5.59g/individual) and feed conversion rate (2.82).
Downloads
Published
Issue
Section
License
This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.
The authors retain the copyright and grant the right to publish in the magazine for the first time with the transfer of the commercial right to the Tishreen University Journal for Research and Scientific Studies - Biological Sciences Series
Under a CC BY- NC-SA 04 license that allows others to share the work with of the work's authorship and initial publication in this journal. Authors can use a copy of their articles in their scientific activity, and on their scientific websites, provided that the place of publication is indicted in Tishreen University Journal for Research and Scientific Studies - Biological Sciences Series . The Readers have the right to send, print and subscribe to the initial version of the article, and the title of Tishreen University Journal for Research and Scientific Studies - Biological Sciences Series Publisher
journal uses a CC BY-NC-SA license which mean
You are free to:
- Share — copy and redistribute the material in any medium or format
- Adapt — remix, transform, and build upon the material
- The licensor cannot revoke these freedoms as long as you follow the license terms.
- Attribution — You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
- NonCommercial — You may not use the material for commercial purposes.
- ShareAlike — If you remix, transform, or build upon the material, you must distribute your contributions under the same license as the original.
- No additional restrictions — You may not apply legal terms or technological measures that legally restrict others from doing anything the license permits.
