STUDY OF SOME MORPHOMETRIC MEASUREMENTS, MERISTIC TRAITS, AGE AND GROWTH STRUCTURE OF BARBUS GRYPUS IN DALAKI RIVER

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BAGHERI T.; HEDAYATI A.A.; ABDOLI A.

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Journal: IRANIAN JOURNAL OF BIOLOGY Year:2010 | Volume:23 | Issue:3 Page(s): 389-396

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Title

STUDY OF SOME MORPHOMETRIC MEASUREMENTS, MERISTIC TRAITS, AGE AND GROWTH STRUCTURE OF BARBUS GRYPUS IN DALAKI RIVER

Author(s)

BAGHERI T. | HEDAYATI A.A. | ABDOLI A. | Issue Writer Certificate

Keywords

BARBUSQ2

GROWTHQ3

MERISTICQ2

MORPHOMETRICQ2

Abstract

Shirbot is a commercially valuable fish and biological attributes of it is crucial for achieving a suitable technique of breeding, so a survey was conducted on spring of 1999 upon 72 specimens in Dalaki River, located on Boushehr province (south of Iran).Specimens belonged to three age group: 1+, 2+, 3+, and in both sexes, 2+ was the most abundant. MERISTIC traits including dorsal fin ray, anal fin ray pectoral fin ray, ventral fin ray, anterior gill rakers, posterior gill rakers, number of barbels and the average length of one of them, the number of lateral line scales, the number of predorsal scale, the number of caudal peduncle scale were examined. MORPHOMETRIC measurements was calculated as the ratio of standard length including: The ratio of standard length to head length, to body depth, to pectoral fin length, to ventral fin length, to predorsal length and the ratio of head length to snout length, to pectoral fin length, to ventral fin length.The smallest as well as the largest specimen were males with the length of 68 and 264 mm respectively. GROWTH model studied separately among females and males. In females GROWTH was positive allometric, (b=3.27), and in males GROWTH was negative allometric, (b=1.7). RLG indicates the feeding regimes of fishes and was estimated in this survey. BARBUS is an omnivorous fish with regard to the result of RLG and this indicator reduced in both sexes as long as they were growing and reflects changes in the feeding strategy into carnivorous. GSI was increased as the age goes up, but the rate of increasing was higher in males. In contrast to males, females were getting mature in age 3+. Condition factor was increased in males and no change in females. Moment GROWTH coefficient was higher in females and in both groups of ages, 2+ & 3+ was higher than in 1+ & 2+.

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APA: Copy

BAGHERI, T., HEDAYATI, A.A., & ABDOLI, A.. (2010). STUDY OF SOME MORPHOMETRIC MEASUREMENTS, MERISTIC TRAITS, AGE AND GROWTH STRUCTURE OF BARBUS GRYPUS IN DALAKI RIVER . IRANIAN JOURNAL OF BIOLOGY, 23(3), 389-396. SID. https://sid.ir/paper/21120/en

Vancouver: Copy

BAGHERI T., HEDAYATI A.A., ABDOLI A.. STUDY OF SOME MORPHOMETRIC MEASUREMENTS, MERISTIC TRAITS, AGE AND GROWTH STRUCTURE OF BARBUS GRYPUS IN DALAKI RIVER . IRANIAN JOURNAL OF BIOLOGY[Internet]. 2010;23(3):389-396. Available from: https://sid.ir/paper/21120/en

IEEE: Copy

T. BAGHERI, A.A. HEDAYATI, and A. ABDOLI, “ STUDY OF SOME MORPHOMETRIC MEASUREMENTS, MERISTIC TRAITS, AGE AND GROWTH STRUCTURE OF BARBUS GRYPUS IN DALAKI RIVER ,” IRANIAN JOURNAL OF BIOLOGY, vol. 23, no. 3, pp. 389–396, 2010, [Online]. Available: https://sid.ir/paper/21120/en

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