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Article
Distribution of zooplankton in the Al-Hawizah, Al-Hammar marshes and Al-Izze river South of Iraq

Author: S. G. Ajeel, T.A.Khalaf, H. H. Mohammad and M.F.Abbas
Journal: Marsh Bulletin مجلة الاهوار ISSN: 18169848 Year: 2006 Volume: 1 Issue: 2 Pages: 140-153
Publisher: Basrah University جامعة البصرة

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Abstract

Samples of zooplankton were collected seasonally from seven stations in the marshes South of Iraq. For the period from December 2003 to November 2004, by plankton net 120 micron mish-size. Water temperature, salinity and pH were recorded at each station. The population density of zooplankton ranged between 52 ind./ m3 at station 5 (Al-Barga region) during Autumn, to 3309 ind /m3 at station 2 (Al-Turaba region) during Spring2004. Crustacea was the dominated group in all stations because the Copepoda was very abundant and its comprised 62.4%, 67%, 89.9%, 62.5%, 31.5%, 49.9%, and 64.9%, in stations (1,2,3,4,5,6,7)respectively. The density of zooplankton is governed inversely by water temperature and to lesser extent by salinity. A total of 18 species of Cladocera belonging to 12 genera were identified in the area, 5 species are new records to the Iraqimarshes.

Keywords

marshes --- ranged --- zooplankton --- Al-Hawizah --- Al-Hammar


Article
Concentrations of Trace Metals in Aquatic Plants and sediments of the Southern Marshes of Iraq (Al-Hawizah and Al-Hammar)

Author: N.A.N. Awad ; H.T. Abdulsahib andA.A. Jaleel
Journal: Marsh Bulletin مجلة الاهوار ISSN: 18169848 Year: 2008 Volume: 3 Issue: 1 Pages: 57-66
Publisher: Basrah University جامعة البصرة

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Abstract

The analysis of trace metals Cd, Pb, Cu, Zn, Mn and Fe in six species of aquatic plant species and sediments of Al-Hawizah and Al-Hammar marshes were investigated . It was found that the nature of the region is unpolluted with the trace metals. The ability of these plants to accumulate and eliminate trace metals in relation to their concentrations in ambient led to the observed variations in metal concentrations in plants. The results showed higher concentration of trace metals in sediment than in plants. No significant difference were observed in trace metals concentrations in aquatic plants and sediment samples for both Al-Hawizah and Al- Hammar marshes .Generally , the levels of the studied metals in plants and sediments of region were lower thanthe other compared areas of the world

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