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Article
Species Composition and Ecological indices of Fishes in the restored marshes of Southern Mesopotamia

Author: N.A. Hussain ;H.A. Saoud and E. j. Al shami
Journal: Marsh Bulletin مجلة الاهوار ISSN: 18169848 Year: 2008 Volume: 3 Issue: 1 Pages: 17-31
Publisher: Basrah University جامعة البصرة

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Abstract

Fish species composition and ecological indices were monitored in three restored southern marshes(Suq Al-Shuyukh, Al- Huwayzah and East Hammar ),during the period June 2004 to July 2005. 18 freshwater and seven marine species were collected in total from Al- Huwayza, Suq Al-Shuyuakh and East Hammar. The fish composition of each marsh exhibit certain differences . In Al- Huwayzah the fish assemblage dominated by native species formed of 70.6 % . In Suq Al-Shuyukh 64.7% ,in East Hammar consisted of 47.8%.The highest alien and marine constituents was in Al- Huwayzah and East Hammar 29.4% and 30.4%respectively. The dominant species in the three monitored marshes was Liza abu and in the second rank was Carassius carassius.Diversity and Richness were higher in East Hammar than other marshes, Evenness generally the same in all marshes. Higher value of Similarity between Suq Al- Shuyukh and East Hammar 73.9%, between Al- Huwazah and Suq Al- Shuyukh 70%, in comparison with 68.1% between Al- Huwazah and East Hammar. The recovery index were higher in East Hammar( 71.8%), in compared with 69.5 % and 65.2 % in Suq Shuyukh andHuwazah respectively.


Article
Seasonal Patterns of Ecological Indices For Keystone Animals Groups In Three Types of Iraqi Marshes During 2005 -2007

Authors: Najah A. Hussain --- Atheer, H. Ali --- H. A. Hamzah --- Laith F. Lazem
Journal: Mesopotamia Environmental Journal بيئة وادي الرافدين ISSN: 24102598 Year: 2014 Volume: 1 Issue: 1 Pages: 7-17
Publisher: Babylon University جامعة بابل

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Abstract

Seasonal ecological indices were calculated for three keystone biological groups (macroinvertebrates, fishes and aquatic birds) during the period 2005-2007 in three types of restored southern Iraqi marshes freshwater non-tidal (Huwaiza), oligosaline non-tidal (West Hammar) and mesosaline tidal (East Hammar). It seem that each marsh have its own timing for increase or decrease of diversity, richness and evenness. In general high modes for ecological indices appeared in summer and spring for macroinvertebrates and fishes lower ones in autumn and winter respectively, aquatic birds have high score in winter–spring period and low one in summer. Differences did existed in styles and timing of highest and lowest values in three types of marshes due to different prevailing ecological situation. Summer was the time for higher score for ecological indices for macroinvertebrates and fishes, winter recorded the lowest values. Aquatic birds have different mode. Non-tidal freshwater marsh was similar to non-tidal oligosaline marsh especially in timing of high mode of ecological indices. Tidal mesosaline marsh partly similar to non-tidal oligosaline and wildly different to that non-tidal freshwater marsh. The ecological indices of aquatic birds improved gradually to reach integrated status. The improvement of hydrological situation of the restored marshes led to improve of ecological indices especially those of aquatic birds.


Article
Abundance and ecological indices of mammals at east hammar marsh, Basrah ,southern Iraq

Authors: Adil F. Abbas --- Najah A. Hussain
Journal: Mesopotamia Environmental Journal بيئة وادي الرافدين ISSN: 24102598 Year: 2015 Volume: 2 Issue: 1 Pages: 12-23
Publisher: Babylon University جامعة بابل

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Abstract

Abundance and ecological indices were evaluated for the terrestrial mammals at East Hammar marsh. Sixteen species were recognized and 236 individuals were recorded during the period from May 2012 to May 2013. The most abundant species were Canis aureus followed by Herpestes javanicus. C. aureus consider as the only resident species and scored the highest dominance value ( 23%).The highest Species diversity by Shannon and Wiener and Simpson indices were in October (1.72 and 0.79), the lowest value were in September,( 0.93 and 0.55 ) respectively. The highest richness values by Margalef and Menhinick indices were in August( 2.17 and 1.89), the lowest values were in September (0.66 and 0.67 ) respectively. The highest values of similarity by Jaccard and Sørensen indices were between March – April (85.71% and 83.3%), the lowest values were between June – July and July – August 20% and 33.3% respectively. Four monthly groups appeared to match with cold ,spring ,warm and hot season. Strong correlation existed between H. javanicus,C. aureus and Hemichinus auritus with moderate temperature at spring season.

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