A SURVEY OF BIOLOGICAL CHARACTERISTICS OF VIMBA VIMBA IN GORGANRUD RIVER AND COASTAL WATERS OF THE CASPIAN SEA IN MAHMOUDABAD

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RAHMANI H.; KAMALI PASHAKOLAI E.; PATIMAR R.

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Journal: Journal of Fisheries Year:2011 | Volume:64 | Issue:3 Page(s): 259-268

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Information Journal Paper

Title

A SURVEY OF BIOLOGICAL CHARACTERISTICS OF VIMBA VIMBA IN GORGANRUD RIVER AND COASTAL WATERS OF THE CASPIAN SEA IN MAHMOUDABAD

Author(s)

RAHMANI H. | KAMALI PASHAKOLAI E. | PATIMAR R. | Issue Writer Certificate

Keywords

VIMBA VIMBAQ2

BIOLOGYQ2

GORGANRUDQ3

MAHMOUDABADQ2

Abstract

In this study, some of biological parameters of VIMBA VIMBA from February 2009 to June 2010 were examined. In total, 281 fish samples were caught by gill- net. In two regions had of five age groupsthat, the most frequent age groups were related to 2+. Sex ratio of male to female were in GORGANRUD population 67% to 33% and in MAHMOUDABAD population 57% to 43% (p£0.05). There were no significant differences (p>0.05) between the average length and weight of the two populations. Growth pattern for populations of GORGANRUD and MAHMOUDABAD were negative allometric and isometric, respectively. Within the two populations, the asymptotic length (L¥) in males was higher than females, but the growth rates (K) in females were relatively higher. Mean absolute fecundity in GORGANRUD and MAHMOUDABAD populations were 11970.8±8381.03 and 6728.49±2488.5 eggs per fish, respectively. There was significant difference between the two populations (p£0.05) in mean absolute fecundity, average egg diameter and condition factor. The results showed that, in many biological parameters, there were significant differences between the two populations due to environmental differences in two regions.

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APA: Copy

RAHMANI, H., KAMALI PASHAKOLAI, E., & PATIMAR, R.. (2011). A SURVEY OF BIOLOGICAL CHARACTERISTICS OF VIMBA VIMBA IN GORGANRUD RIVER AND COASTAL WATERS OF THE CASPIAN SEA IN MAHMOUDABAD. JOURNAL OF FISHERIES (IRANIAN JOURNAL OF NATURAL RESOURCES), 64(3), 259-268. SID. https://sid.ir/paper/162091/en

Vancouver: Copy

RAHMANI H., KAMALI PASHAKOLAI E., PATIMAR R.. A SURVEY OF BIOLOGICAL CHARACTERISTICS OF VIMBA VIMBA IN GORGANRUD RIVER AND COASTAL WATERS OF THE CASPIAN SEA IN MAHMOUDABAD. JOURNAL OF FISHERIES (IRANIAN JOURNAL OF NATURAL RESOURCES)[Internet]. 2011;64(3):259-268. Available from: https://sid.ir/paper/162091/en

IEEE: Copy

H. RAHMANI, E. KAMALI PASHAKOLAI, and R. PATIMAR, “A SURVEY OF BIOLOGICAL CHARACTERISTICS OF VIMBA VIMBA IN GORGANRUD RIVER AND COASTAL WATERS OF THE CASPIAN SEA IN MAHMOUDABAD,” JOURNAL OF FISHERIES (IRANIAN JOURNAL OF NATURAL RESOURCES), vol. 64, no. 3, pp. 259–268, 2011, [Online]. Available: https://sid.ir/paper/162091/en

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