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Occurrence, taxonomical and ecological study of aquatic hyphomycetes in waters from Barada basin (Banias River) II - Water distribution

التوزع التصنيفي و البيئي للمجتمعات الفطرية الخيطية المائية في مياه من حوض بردى: نهر بانياس II الانتشار في المياه

1996   0   10   0 ( 0 )
 Publication date 1997
and research's language is العربية
 Created by Shamra Editor




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This study was carried out for three years (٣-٥ months every year) during maximum of aquatic hyphomycetes distribution ( in - Autumn and Winter), which related with the period of leaves-fall. We studied ٩٠ water samples taken from Banias River. We identified ٧٠ species of aquatic hyphomycetes by investigtion ٨٢٨ spore - isolates taken from water samples. The factors responsible for the occurrence of different patterns of their distribution have been determined. Therefore, this work is done for the first time in Syria and given an important side of ecological and botanical diversity in the waters of our country.


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Research summary
تتناول هذه الدراسة التوزع التصنيفي والبيئي للفطريات المائية في مياه نهر بانياس، أحد روافد حوض بردى في سوريا. أُجريت الدراسة على مدى ثلاث سنوات خلال فصلي الخريف والشتاء، حيث تم جمع عينات المياه وتحليلها لتحديد أنواع الفطريات المائية وتوزعها. تم تحديد 70 نوعًا من الفطريات المائية من خلال تحليل الأبواغ المعزولة من العينات. وقد بينت الدراسة أن توزيع الفطريات يتأثر بعوامل بيئية مثل درجة الحرارة، كمية المياه وسرعتها، وتوفر المواد العضوية من الأوراق المتساقطة والأغصان. أظهرت النتائج أن الفطريات المائية تلعب دورًا مهمًا في النظام البيئي من خلال تحلل المواد العضوية وتوفير الغذاء للكائنات الحية الأخرى في السلسلة الغذائية. كما أظهرت الدراسة أن هناك تباينًا في توزيع الأنواع وكثافتها بين المواقع المختلفة على طول النهر، مما يعكس تأثير العوامل البيئية المحلية على التنوع البيولوجي للفطريات المائية.
Critical review
تعد هذه الدراسة إضافة قيمة لفهم التنوع البيئي للفطريات المائية في سوريا، إلا أن هناك بعض النقاط التي يمكن تحسينها. أولاً، كان من الممكن أن تكون الدراسة أكثر شمولية إذا تم تضمين فصول أخرى من السنة لتحليل تأثير التغيرات الموسمية بشكل أوسع. ثانيًا، لم تتناول الدراسة بشكل كافٍ تأثير التلوث البيئي على توزيع الفطريات، وهو عامل مهم يجب أخذه في الاعتبار في الدراسات البيئية. ثالثًا، كان من الممكن أن تكون النتائج أكثر دقة إذا تم استخدام تقنيات تحليلية متقدمة مثل تحليل الحمض النووي لتحديد الأنواع بدقة أكبر. على الرغم من هذه النقاط، تقدم الدراسة معلومات قيمة حول التنوع البيئي للفطريات المائية وتفتح المجال لمزيد من الأبحاث في هذا المجال.
Questions related to the research
  1. ما هي العوامل البيئية التي تؤثر على توزيع الفطريات المائية في نهر بانياس؟

    تتأثر الفطريات المائية بعوامل مثل درجة الحرارة، كمية المياه وسرعتها، وتوفر المواد العضوية من الأوراق المتساقطة والأغصان.

  2. كم عدد أنواع الفطريات المائية التي تم تحديدها في الدراسة؟

    تم تحديد 70 نوعًا من الفطريات المائية من خلال تحليل الأبواغ المعزولة من العينات.

  3. ما هو الدور البيئي للفطريات المائية في النظام البيئي لنهر بانياس؟

    تلعب الفطريات المائية دورًا مهمًا في تحلل المواد العضوية وتوفير الغذاء للكائنات الحية الأخرى في السلسلة الغذائية.

  4. ما هي الفصول التي تم فيها جمع عينات المياه للدراسة؟

    تم جمع عينات المياه خلال فصلي الخريف والشتاء، حيث تكون ذروة توزيع الفطريات المائية مرتبطة بفترة سقوط الأوراق.


References used
Ali-Shtayeh, M.S. and Asad Al-Sheikh, B.S. (١٩٨٨): Isolation of keratinophilic fungi from the floor dust of arab kindergarten schools in the west Bank of Jordan. Mycopathologia
Archer,J. and Willoughby, L.G.(١٩٦٩): Wood as the growth substratum for a freshwater foam spora. Trans. Br. Mycol.Soc
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