A Study of Invertebrates Community in Lesser Zab River/ Kurdistan Region-Iraq
A study of invertebrates community has been carried out at three sites selected on Lesser Zab River. Monthly samples of water, zooplanktonic and benthic invertebrates were collected for the period of May to October 2014. Some physical and chemical properties of water were studied and the results showed that the water temperature ranged from 15-31 °C, hydrogen ion concentration of studied sites were found to lie in the alkaline side, it was ranged between 8.1-8.9, turbidity ranged from 14-105 NTU, salinity from 0.19 to 0.29 ppt, dissolved oxygen from 4 to 5.4mg.l-¹ and electrical conductivity from 316 to 454µs.cm¹. Concerning to the zooplankton, 29 species were identified which belonged to Copepod 76%, Cladocera 16% and Rotifera 8%. A total of 18 species of benthic invertebrate were identified dominated by Annelida 67%, followed by Nematodes 20%, Insects 8%, Mollusca 4.7%, Targigrada 0.2% and Decapoda 0.1%. According to Shanon-Weiner index, species diversity for zooplankton invertebrates was ranged from 0.067 to 0.90 bits/ind. While for benthic invertebrates was ranged from 0.025 to 1.31 bits/ind. Sorensen similarity index showed that the highest similarity was recorded between site (2) and site (3) with 87.17% and 69.56% for both of planktonic and benthic invertebrate communities respectively. Environmental Protection Agency standards revealed that Lesser Zab River was unpolluted in site1 and site2 and slightly polluted in site (3).
Copyright (c) 2017 ZANCO Journal of Pure and Applied Sciences
This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.
ZANCO Journal of Pure and Applied Sciences (print version: ISSN 2218-0230 online version: ISSN 2412-3986, DOI: 10.21271) is published by Salahaddin University-Erbil / Department of Scientific Publications. Responsibility for the contents rests upon the authors and not upon Salahaddin University-Erbil or the Journal Editorial and Advisory Boards.
Department of Scientific Publication Office: The Central Library of Salahaddin University-Erbil, Kirkuk Road, Erbil, Kurdistan, Iraq. Cell Phone: +964 (0)750 7761675, email: email@example.com. www.su.edu.krd, www.zancojournals.su.edu.krd
Copyright and Reprint Permission: It is the policy of ZANCO to own the copyright to the technical contributions it publishes and to facilitate the appropriate reuse of this material by others. Photocopying is permitted with credit to the source for individuals for individual use.
Copyright © 2017. All Rights Reserved. Salahaddin University-Erbil