Determination Some biological characteristics of Chondrostoma regium (Heckel, 1843) in Tishreen Lake (Euphrates River)
Abstract
This study was conducted to determine the sexual and age compositions, the relationship of length and weight with age, weight- - length relationship and the condition factor according to age groups of 309 Chondrostoma regium (Heckel, 1843) individuals collected from Tishreen Lake between April 2010 to May 2012. Individuals ranged between (I-VI) age group, were females that constituted 50.80% while males were 41.74%. The first and second age groups were dominated all samples with a rate of 68.93% . The length ranged between 9.70-28.34 cm and the majority were between 11-17 cm while the weight was distributed between 17.47-234.92 g and the majority was between 25-95 g.Length and weight relationships the age were estimated and the equations were:
،
The relationship of weight to length was: ،
The condition factor had the highest value (1.35) at the age group IV 1.35 while the lowest value(0.78) was at the age group I.
Downloads
Published
How to Cite
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.