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2012 (Vol. 4, Issue: 1)
Article Information:

The Influence of Marine Pollution on Distribution and Abundance of Polychaetes

A. El-Gendy, S. Al-Farraj, S. Al-Kahtani and M. El-Hedeny
Corresponding Author:  A. El-Gendy 

Key words:  Abundance, Alexandria, distribution, Egypt, pollution, polychaetes,
Vol. 4 , (1): 40-47
Submitted Accepted Published
2011 October, 10 2011 October, 31 2012 January, 20

Polychaetes are the most abundant taxon recorded in benthic communities of many habitats of Alexandria, Egypt. In the study, six stations were chosen along the Mediterranean coast of Alexandria. In each station water quality variables were measured. A total of 25 polychaete species were encountered. The most common families were Capitellidae and Spionidae both in term of abundance and species richness. Capitella capitata, Minuspio cirrifera, Polydora capensis and Heteromastus filiformis were the most abundant and omnipresent polychaete species in the study area, indicating their tolerance and adaptability to various degrees of pollution. Statistical analyses of polychaete data were used to determine the level of environmental degradation in various stations of coast. Shannon’s index (H') varied spatially from 1.43 to 2.52, Margalef richness index (d) from 0.50 to 2.59, and evenness index (J) from 0.81 to 0.97 indicating poor polychaete diversity. Comparing with control sites, the impacted stations (1-4) had lower species richness and diversity indicating poor environment that is confirmed with low pH and dissolved oxygen values. Moreover, they displayed high nutrient levels due to the high organic matter input in the area. The poorest environment for polychaetes was in the Eastern Abu Quir "station #1" (S = 5, N = 2275, H' = 1.50, d = 0.51 and J = 0.93). The present data can form a baseline for future monitoring programmers in the area.
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  Cite this Reference:
A. El-Gendy, S. Al-Farraj, S. Al-Kahtani and M. El-Hedeny, 2012. The Influence of Marine Pollution on Distribution and Abundance of Polychaetes.  Current Research Journal of Biological Sciences, 4(1): 40-47.
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ISSN (Online):  2041-0778
ISSN (Print):   2041-076X
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