Fish assemblage and impact of oscillation between drowning and droughton fish size-spectrum in the al-Chibyaish Marsh, Southern Iraq
Other Title(s)
التجمع السمكي و تأثير التذبذب بين الأغمار و الجفاف على تردد أحجام الأسماك في أهوار الجبايش جنوبي العراق
Author
Abd Allah, Abd al-Husayn Jafar
Source
Issue
Vol. 60, Issue 1 (31 Mar. 2019), pp.18-28, 11 p.
Publisher
University of Baghdad College of Science
Publication Date
2019-03-31
Country of Publication
Iraq
No. of Pages
11
Main Subjects
Abstract EN
The present study was implemented in the period from January to December 2017, to assess the assemblage of fish, with the effects of some environmental factors and knowledge the impacts of annual periodic fluctuations between drowning and drought on the abundance and size-spectrum on the fish community in Al-Cibyaish marsh.
Water temperature ranged between July, salinity from 2.90 PSU (Practical salinity unite) in February to 4.14 PSU in August.
Hydrogen ion ranged between 7.60 in July to 8.30 in February.
The present study appears contribution of environmental variables in the distribution, widespread and occurrence of fish assemblage in the Al-Chibyaish marsh.
A total of 3294 specimens were collected represented 15 fish species affiliated to 15 genera, six families and five orders.
Three fish species in present area were formed 72.38% of the total number of species in the marsh.
Planiliza abu was the most abundant species formed 35.43%, Alburnus mossulensis, 19.22% and Oreochromis aureus, 17.73%.
The ecological indices were within the range of previous studies and described as poor for diversity index ranged between1.38 in June to 1.96 in November.
Richness index fluctuated from 0.96 in May and July to 1.96 in April and can express as half integrated.
The evenness index values ranged from 0.68 in September to 0.85 in November and December indicate to semi-balanced or slightly balanced.
Fish size revealed dominance of the small size due to high mortality in the dry season.
The present study affirms prevalence and dominates of historical small native species P.
abu and some of the small invasive species, which possess various functional characteristics, enable it to inhabit the marsh
American Psychological Association (APA)
Abd Allah, Abd al-Husayn Jafar. 2019. Fish assemblage and impact of oscillation between drowning and droughton fish size-spectrum in the al-Chibyaish Marsh, Southern Iraq. Iraqi Journal of Science،Vol. 60, no. 1, pp.18-28.
https://search.emarefa.net/detail/BIM-892025
Modern Language Association (MLA)
Abd Allah, Abd al-Husayn Jafar. Fish assemblage and impact of oscillation between drowning and droughton fish size-spectrum in the al-Chibyaish Marsh, Southern Iraq. Iraqi Journal of Science Vol. 60, no. 1 (2019), pp.18-28.
https://search.emarefa.net/detail/BIM-892025
American Medical Association (AMA)
Abd Allah, Abd al-Husayn Jafar. Fish assemblage and impact of oscillation between drowning and droughton fish size-spectrum in the al-Chibyaish Marsh, Southern Iraq. Iraqi Journal of Science. 2019. Vol. 60, no. 1, pp.18-28.
https://search.emarefa.net/detail/BIM-892025
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references : p. 27-28
Record ID
BIM-892025