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Study of spawning season and spawning ground of soboor (Tenualosa ilisha, Ham. Bunch., 1822) during its migration in Khuzestan rivers
J. Ghafleh Marammazi * , Gh.R. Eskandari , M. Almokhtar , B. Hasanzadeh Kiabi
, jmaramazi@yahoo.com
Abstract:   (484 Views)
During 12 months of sampling, from 17 stations, 327 specimens of Soboor fish Tenualosa ilisha, including 120 females, 113 males and 86 immature were caught. Total length (TL) of the fishes was 120-500mm. Maximum diameters of soboor ova 0.795mm and the ova with diameter more than 0.7 mm released at one spawning round. Temporal and spatial distribution of ova diameter corresponding to GSI changes showed that ova with diameters between 0.64 to 0.795 mm released spontaneously in many rounds along fish migration route during its spawning season. The results indicate that the spawning of soboor begins upon its entering to Bahmanshir and Arvand Rivers on April and continued up to Shushtar and Dezful cities on September where their migration route and season are ended.
Keywords: Tenualosa ilisha, Spawning season, Ova diameter, GSI
Full-Text [PDF 2509 kb]   (101 Downloads)    
Type of Study: Orginal research papers | Subject: Ecology
Received: 2017/12/11 | Accepted: 2017/12/11 | Published: 2017/12/11
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Ghafleh Marammazi J, Eskandari G, Almokhtar M, Hasanzadeh Kiabi B. Study of spawning season and spawning ground of soboor (Tenualosa ilisha, Ham. Bunch., 1822) during its migration in Khuzestan rivers. IJFS. 2004; 4 (1) :89-102
URL: http://jifro.ir/article-1-3153-en.html


Volume 4, Issue 1 (7-2004) Back to browse issues page
مجله علوم شیلاتی ایران Iranian Journal of Fisheries Sciences
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