Comparison relative of abundance of Capoeta capoeta gracilis in five streams of Gorganroud River Basin, Golestan Province, Northern Iran
Abstract
In this study 1705 individuals have sampled during spawning season in five streams of Gorganroud basin and investigated the lengths and relative abundance. The length varied from 4.1-23.2 cm.there were significant difference in length frequencies between male and female in each streams and length classes. Sex ratio was 1:1.78. Male dominance was observed in all population. Sixteen length classes were present. Maximum frequency was length class length 8.9-10.1 cm for males and 7.7-8.9 cm for females. Males were more frequent in medium size. Females were in varied size.
References
Kiabi BH, Abdoli A and Naderi M. 1999. Status of the fish fauna in the South Caspian Basin of Iran. Zoology in the Middle East 18:57-65.
Abdoli A. 2000. The Inland Water Fishes of Iran. Iranian Museum of Nature and Wildlife, Tehran.378.
Samaee SM, Majazi-Amiri B, Hosseini-Mazinani SM. 2006. Comparison of Capoeta capoeta gracilis (Cyprinidae. Teleostei), population in the South Caspian Sea River basin, using morphometric ratios and genetic markers. Folia Zool., 55:323-335.
Armantrout NB. 1980. The freshwater fishes of Iran. Ph.D. Thesis, Oregon State University, Corvallis, Oregon. XX:472.
Rezaei M, Kamali A, Hasanzadeh kiabi B and Shabani A. 2007. Investigation of age, growth and reproduction of Capoeta capoeta gracilis in the Madarsoo Stream in Golestan National Park in competition with studies before of 1380 year. Journal of science of Iran fisheries 16:63-73.
Gholizade M, Ghorbani R, Salman Mahini AR, Hajimoradloo AM, Rahmani H and Mollaei M. 2009. An Investigation on morphology, age and growth of Capoeta capoeta gracilis in Zarrin-Gol stream, Golestan Province of Iran. J. Agric. Sci. Natur. Resour., 16:Special issue 1-a.
Abdoli A. Rasooli P and Mostafavi H. 2008. Length-Weight relationships of Capoeta capoeta capoeta (Gueldenstaedt, 1772) in the Gorganrud River, South Caspian Basin. J. Appl. Ichthyol., 24:96-98.
Turkmen M, Erdoĝan O, Yildirim A and Akyurt I. 2002. Reproduction tactics, age and growth of Capoeta capoeta umbla Heckel 1843 from the Askale Region of Karasu River, Turkey. Fisheries Research 54:317-328.
Patimar R, Ownagh E, Jafari N and Hosseini M. 2009. Intrabssin variation in allometry coefficients of Lenkorn Capoeta capoeta gracilis (Keyserling, 1861) in the Gorganroud basin, southeast Caspian Sea, Iran. J. Appl. Ichthyol., 25:776-777.
