The behavior of Organic and Inorganic forms of Nutrients in the estuaries of Marqieh and Al-Housen rivers (shore waters of Tartous Governorate)

Authors

  • maisa mohamad Tishreen University
  • Hazem Krawi Tishreen University
  • Firuz Darwich Tishreen University

Abstract

In this research, the temporal and spatial changes in nutrient concentrations were studied throughout the year in each phase of their existence (dissolved inorganic, dissolved organic and particulate nutrient), Studying factors that affect the changes of its concentrations, estimating the primary productivity (concentrations of Chlorophyll a), and determining the limiting factor for growth in several locations in coastal waters of Tartous Governorate. Samples were collected from estuary areas of (Marqieh, Housen) at different salinity values. Semi-term water samples were collected during the period between (August 2020 and May 2021) In order to study the distribution of nutrients (nitrogen, phosphorous), Determination of Hydrochemical properties of water to identify its impact on nutrients distribution in studied areas. Highest concentrations of nutrients were observed at the estuary point of studied rivers, This point constituted the main source of nutrients in their various forms, These concentrations decreased with the distance from the estuary point during all marine sampling trips. Chlorophyll concentrations recorded two peaks (Spring and Autumn), which coincided with a decrease in concentrations of dissolved inorganic and dissolved organic nutrients, while concentration of particulate nutrients increased. Redfield ratio showed that phosphorous ions played the role of limiting factor for growth in all studied sites. The ∑N/P ratio was greater than Redfield ratio (N/P = 16) in 78% of samples in Marqieh estuary region and in 83% of samples in Housen estuary region. The DON/DOP ratio was greater than Redfield ratio in 94% of the samples in Marqieh estuary and in 89% of samples in Housen estuary region.

 

Downloads

Published

2022-11-22

How to Cite

1.
محمد م, حازم كراوي, فيروز درويش. The behavior of Organic and Inorganic forms of Nutrients in the estuaries of Marqieh and Al-Housen rivers (shore waters of Tartous Governorate). TUJ-BA [Internet]. 2022Nov.22 [cited 2024Nov.24];44(5):53-72. Available from: https://journal.tishreen.edu.sy/index.php/bassnc/article/view/12661

Issue

Vol. 44 No. 5 (2022): Tishreen University Journal of Research and Scientific Studies - Basic Sciences Series

Section

Master student researches

License

Creative Commons 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 -Basic 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 -Basic 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 -Basic Sciences Series   Publisher

 

journal uses a CC BY-NC-SA license which mean

You are free to:

  • 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.