SOME BIOLOGICAL CHARACTERISTICS OF ROACH, RUTILUS RUTILUS CASPICUS, IN GOMISHAN WEFLAND

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NADDAFI R.; MOJAZI AMIRI B.; KARAMI M.; ABDOLI A.

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Journal: Iranian Scientific Fisheries Journal Year:2002 | Volume:11 | Issue:3 Page(s): 103-126

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Title

SOME BIOLOGICAL CHARACTERISTICS OF ROACH, RUTILUS RUTILUS CASPICUS, IN GOMISHAN WEFLAND

Author(s)

NADDAFI R. | MOJAZI AMIRI B. | KARAMI M. | ABDOLI A. | Issue Writer Certificate

Keywords

ROACHQ4

RUTILUS RUTILUS CASPICUSQ3

BIOLOGYQ3

GOMISHAN WETLANDQ2

IRANQ4

Abstract

This study was conducted to determine some biological characteristics of migration population of ROACH, RUTILUS RUTILUS CASPICUS, including age, growth and reproduction in GOMISHAN WETLAND from early November 1999 to early December 2000. The sampling were carried out monthly but in the peak of spawning period (late February to mid April) it was done weekly. The sex ratio was found M:F = 1.17:1.00 without any significant difference (even at 10% level); but the results of the sex ratio for each seperate age group showed significant difference (p < 0.0.5). A significant correlation was determined between total length, body weight, scale radius and age (p<0.001). Based on back calculation, the maximum growth ratewere found in ages 1+ and 2+. Gonadosmatic index (OSI) was age-dependent; with two peaks of late February and early March for males and late March and early April for females. The eggs diameter was measured with a range from 0.9 mm to 1.45 mm and the absolute fecundity was related to age.

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APA: Copy

NADDAFI, R., MOJAZI AMIRI, B., KARAMI, M., & ABDOLI, A.. (2002). SOME BIOLOGICAL CHARACTERISTICS OF ROACH, RUTILUS RUTILUS CASPICUS, IN GOMISHAN WEFLAND. IRANIAN SCIENTIFIC FISHERIES JOURNAL, 11(3), 103-126. SID. https://sid.ir/paper/4623/en

Vancouver: Copy

NADDAFI R., MOJAZI AMIRI B., KARAMI M., ABDOLI A.. SOME BIOLOGICAL CHARACTERISTICS OF ROACH, RUTILUS RUTILUS CASPICUS, IN GOMISHAN WEFLAND. IRANIAN SCIENTIFIC FISHERIES JOURNAL[Internet]. 2002;11(3):103-126. Available from: https://sid.ir/paper/4623/en

IEEE: Copy

R. NADDAFI, B. MOJAZI AMIRI, M. KARAMI, and A. ABDOLI, “SOME BIOLOGICAL CHARACTERISTICS OF ROACH, RUTILUS RUTILUS CASPICUS, IN GOMISHAN WEFLAND,” IRANIAN SCIENTIFIC FISHERIES JOURNAL, vol. 11, no. 3, pp. 103–126, 2002, [Online]. Available: https://sid.ir/paper/4623/en

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