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Dissolved Nutrients Behavior Along The Salinity Gradient At The AL-Kabir Alshemali River Mouth (Mediterranean - Syria)

سلوك المغذيات المنحلة في الماء على طول تدرج الملوحة لمصب نهر الكبير الشمالي (البحر الأبيض المتوسط – سوريا)

1162   4   25   0.0 ( 0 )
 Publication date 2018
  fields marine Chemistry
and research's language is العربية
 Created by Shamra Editor




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The study, has Focused on determination of the most important hydrochemical characteristics of water at AL-kabir alshemali estuary area by determination the concentration of nutrient ions (nitrate, nitrite, ammonia, phosphates and silicates) and the factors affecting them. Water samples were collected from several stations of that area between March 2017 and January 2018. The highest concentrations of nutrient throughout the year were reported at river estuary point (K0), a depression in their concentrations was observed in the station distanced away from the river estuary point, compatible with salinity gradient. River estuary point (K0) formed the main source of nutrients that are distributed to other stations. Nutrient concentrations showed clear gradual depression in winter down to more than 1,000 meters from the estuary point, while the gradient in summer has less extension, It was within the first 50 meters in some monthes.


Artificial intelligence review:
Research summary
تركزت الدراسة على تحديد الخصائص الهيدروكيميائية لمياه منطقة مصب نهر الكبير الشمالي في البحر الأبيض المتوسط بسوريا. تم جمع عينات مائية نصف فصلية من عدة مواقع بين مارس 2017 ويناير 2018 لتحديد تركيز الشوارد المغذية مثل النترات، النتريت، الأمونيوم، الفوسفات، والسيليكات، إضافة إلى العوامل المؤثرة عليها مثل درجة الحرارة والملوحة. أظهرت النتائج أن أعلى تركيزات للشوارد المغذية كانت عند نقطة المصب، وتناقصت مع الابتعاد عنها متوافقة مع تدرج الملوحة. امتد تدرج تركيز الشوارد المغذية لأكثر من 1000 متر في الشتاء، بينما كان أقل امتداداً في الصيف حيث انحصر ضمن الـ 50 متر الأولى. تم تنفيذ الدراسة في مخابر المعهد العالي للبحوث البحرية بجامعة تشرين، وأظهرت النتائج توافق سلوك الشوارد المغذية مع دراسات محلية وعالمية مشابهة.
Critical review
دراسة نقدية: تعتبر هذه الدراسة مهمة لفهم الخصائص الهيدروكيميائية لمياه مصب نهر الكبير الشمالي وتأثيرها على توزيع الشوارد المغذية. ومع ذلك، يمكن تحسين الدراسة من خلال توسيع نطاق العينة لتشمل فترات زمنية أطول ومواقع إضافية على طول النهر. كما يمكن تعزيز التحليل باستخدام تقنيات متقدمة مثل النمذجة الرياضية لتحليل البيانات بشكل أكثر دقة. بالإضافة إلى ذلك، يمكن أن تكون الدراسة أكثر شمولية إذا تضمنت تأثير الأنشطة البشرية مثل الزراعة والصناعة على تركيز الشوارد المغذية.
Questions related to the research
  1. ما هي العوامل المؤثرة على توزيع الشوارد المغذية في مياه مصب نهر الكبير الشمالي؟

    العوامل المؤثرة تشمل درجة الحرارة، الملوحة، ومدخلات المياه العذبة من النهر.

  2. كيف يتغير تركيز الشوارد المغذية مع تدرج الملوحة؟

    يتناقص تركيز الشوارد المغذية مع زيادة الملوحة والابتعاد عن نقطة المصب.

  3. ما هي الفترات الزمنية التي تم فيها جمع العينات المائية؟

    تم جمع العينات نصف فصلية بين مارس 2017 ويناير 2018.

  4. ما هي أهمية دراسة النظام الهيدروكيميائي لمصب نهر الكبير الشمالي؟

    تساعد الدراسة في فهم توزيع المغذيات وتأثيرها على البيئة البحرية، مما يمكن من تحسين إدارة الموارد المائية والتخطيط البيئي.


References used
BALLS, P. W. Nutrient inputs to estuaries from nine Scottish East Coast rivers: influence of estuarine processes on inputs to the North Sea. Estuarine Coastal Shelf Sci, Vol. 39, 1994, 329 – 352
BENOVIC, A. Zooplankton biomass of the Adriatic sea – present status and proplems. Nova Thalassia, Vol. 3, 1979, 137-149. 12. BOUGIS, P. Ecologie du plankton marin 1-le phytoplankton. Masson, Paris, 1974, 196
GLIBERT, P.M.; BURKHOLDER, J.M.; PARROW, M.W.; LEWITUS, A.J.; GUSTAFSON, D.E. Direct uptake of nitrogen by Pfiesteria piscicida and Pfiesterias humwayae and nitrogen nutritional preferences. Harmful Algae, Vol. 5, No. 4, 2006, 380– 394
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