- All Journals
- Al-Qadisiyah University
- Basrah University
- Kirkuk University
- Mosul University
- The Iraqi Borad for Medical Specialization
- University of Anbar
- University of Technology
- Al Mustafa University
- Al-Zahraa University for Women
- Alnoor University
- Kunooz University
- Misan University
- Ninevah University
- Tikrit University
- University of Al-Hamdaniya
- University of Kerbala
DISTRIBUTION AND ECOLOGY OF RECENT MOLLUSKS IN THE EUPHRATES RIVER – IRAQ | ||
| Iraqi Bulletin of Geology and Mining | ||
| Article 1, Volume 2, Issue 1, 2006, Pages 57-66 | ||
| Authors | ||
| Karim M. Hassan; Khaldoun S. Al-Bassam | ||
| Abstract | ||
| A reconnaissance survey in the Euphrates River from Al–Qaim to Nassiriya showed the following types of mollusks: Corbicula (Corbicula) fluminalis MULLER, Unio tigridis BOURGUIGNAT, Mytilus sp., bellamya cf. bengalensis LAMARK, Melanoides sp. and Melanopsis nodosa FERUSSAC. The distribution of these mollusks is variable in the river basin; generally the pelecypods are common in the northern sector whereas the gastropods are found in the southern sector only. The most common species in the whole river is C. (Corbicula) fluminalis MULLER, followed by Unio tigridis BOURGUIGNAT. On the other hand, Bellamya cf. bengalensis LAMARK is the commonest species in the southern sector. The distribution of these mollusks in the Euphrates River seems to be controlled by water salinity, type of dissolved salts, speed of water flow, TSS, BOD and COD contents of the river water. The northern sector of the Euphrates River is characterized by faster flow, lower salinity, better aeration, lower TSS, TDS, BOD and COD concentrations and an HCO3, SO4, Ca, Mg water type. In the southern sector the river flow is slower and remarkably higher in TSS, TDS, COD and BOD concentrations relative to the northern sector. | ||
|
Statistics Article View: 175 PDF Download: 116 |
||