Observations on the age and growth of Varicorhinus amascinus (Val.) in Tigris river at Salahuldin province-Iraq
Other Title(s)
ملاحظات عن العمر و النمو في سمكة التيلة الدمشقية Varicorhinus damascinus (Val.) في نهر دجلة عن محافظة صلاح الدين-العراق
Joint Authors
Dawud, Husayn Abd al-Munim
Abd al-Jabbar, Riyad Abbas
al-Abbadi, Qatar al-Nada Ali Ghanim
Source
Issue
Vol. 5, Issue 2 (30 Jun. 2008), pp.243-248, 6 p.
Publisher
University of Baghdad College of Science for Women
Publication Date
2008-06-30
Country of Publication
Iraq
No. of Pages
6
Main Subjects
Abstract EN
Age and growth of Varicorhinus damascinus (Val.) in Tigris river at Salahuldin province have been investigated.
Monthly samples were taken during the period from September 1999 to August 2000, using small-meshed gill nets.
The age data showed that there were six age groups and the dominant age groups were (III – IV) for both sexes.
The results of the present study revealed that the increment in length of V.
damascinus at the sites of study showed a tendency to decrease with the increase in age, after the third year of life in both sexes.
The length-weight relationship of males and females were calculated and demonstrated in a straight line logarithmic formula, as follows: Log W = 1.5404 + 2.6885 log L for males r = 0.95 (P > 0.05) Log W = 1.6723 + 2.7877 log L for females r = 0.77 (P > 0.05) The values of the regression coefficient (b) indicated that the growth of both sexes of V.
damascinus was allometric..
American Psychological Association (APA)
Dawud, Husayn Abd al-Munim& al-Abbadi, Qatar al-Nada Ali Ghanim& Abd al-Jabbar, Riyad Abbas. 2008. Observations on the age and growth of Varicorhinus amascinus (Val.) in Tigris river at Salahuldin province-Iraq. Um-Salama Science Journal،Vol. 5, no. 2, pp.243-248.
https://search.emarefa.net/detail/BIM-367878
Modern Language Association (MLA)
Dawud, Husayn Abd al-Munim…[et al.]. Observations on the age and growth of Varicorhinus amascinus (Val.) in Tigris river at Salahuldin province-Iraq. Um-Salama Science Journal Vol. 5, no. 2 (2008), pp.243-248.
https://search.emarefa.net/detail/BIM-367878
American Medical Association (AMA)
Dawud, Husayn Abd al-Munim& al-Abbadi, Qatar al-Nada Ali Ghanim& Abd al-Jabbar, Riyad Abbas. Observations on the age and growth of Varicorhinus amascinus (Val.) in Tigris river at Salahuldin province-Iraq. Um-Salama Science Journal. 2008. Vol. 5, no. 2, pp.243-248.
https://search.emarefa.net/detail/BIM-367878
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references : p. 247-248
Record ID
BIM-367878