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العنوان
ECOLOGICAL STUDIES ON BENTHIC
INVERTEBRATES COMMUNITIES OF LAKE
BARDAWIL, EGYPT/
المؤلف
Bedir, Tadros Zakaria .
هيئة الاعداد
باحث / Tadros Zakaria Bedir
مشرف / Ahmed Moustafa
مشرف / Magdy Tawfik Khalil
مشرف / Abd El-Halim A. Saad
مشرف / Mohamed Reda Fishar
الموضوع
الحيوانات البحرية
تاريخ النشر
2011 .
عدد الصفحات
700 mg :
اللغة
الإنجليزية
الدرجة
الدكتوراه
التخصص
العلوم البيئية (متفرقات)
تاريخ الإجازة
1/1/2011
مكان الإجازة
جامعة المنوفية - كلية العلوم - Zoology Department
الفهرس
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Abstract

Species composition, distribution of benthic organisms (meioand
macrobenthic) in lake Baradwil were studied during 2006-2007.
Seasonal samples were collected from 12 stations representing
different habitats of the lake. The average standing crop of
meiofauna in whole invested area of was 1820 Org/10cm2.
Ostracoda was the dominant group contributing about 42.8 % of
total population density followed by Foraminifera 32.7% and
Nematoda (14.1 %). Winter was the most productive season.
Macrobenthic community consists of 51 species belonging to
phyla; Coelentrata, Nemertina Annelida, Arthropoda, Mollusca, and
Echinodermata. The abundance of benthic invertebrate species were
closely correlated with nature of bottom sediments, organic matter,
salinity and anthropogenic activities (intensive fish trawling and
artificial inlets).
The standing crop of benthos was decreased during the last
two decades from one year to another due to changes in fish
community structure. In the present study a remarkable increase in
the population density of Mollusca was noticed because of the
declining of the fish, Sparus aurata which is mainly a bottom feeder
depends on Molluscan animals in its diets.