A STUDY OF SOME BIOLOGICAL ASPECTS OF NEMACHEILUS MALAPTERURUS, ZARRINGOL RIVER, GOLESTAN PROVINCE

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TABIEI OMID; ABDOLI A.

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Journal: IRANIAN JOURNAL OF NATURAL RESOURCES Year:2005 | Volume:57 | Issue:4 Page(s): 715-728

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Title

A STUDY OF SOME BIOLOGICAL ASPECTS OF NEMACHEILUS MALAPTERURUS, ZARRINGOL RIVER, GOLESTAN PROVINCE

Author(s)

TABIEI OMID | ABDOLI A. | Issue Writer Certificate

Keywords

LOACHESQ4

GROWTHQ4

RLGQ3

CONDITION FACTORQ4

FOOD HABITSQ4

FOOD SELECTIVITYQ4

Abstract

This study was conducted to determine some of the biological aspects, namely weight, total length, relative gut length (RLG/Index), GROWTH, CONDITION FACTOR, FOOD HABITS and FOOD SELECTIVITY of river LOACHES, Nemacheilus malapterurus, in Zarringol river, Golestan province, northern Iran. A total of 149 specimens were caught using an Electro-shocker and immediately fixed in 10% formalin. The frequency for males, females and immature was 37.5, 9.3 and 35.5% respectively. Sex ratio was 4:1 (male: female). Statistical means for total length and body weight were significantly different for males and females (P<0.01). Average total length and body weights were 59.07 (14.8); 82.42(28.86); 39.73(6.27) mm; and 1.89 (1.8); 5.31 (4.98); 0.53 (0.21) g for males, females and immature, respectively. CONDITION FACTOR was 2.6 for females and 1.97 for males. The regression coefficient for tales and females is less than 3 indicating the length to weight GROWTH to be algometric. The low RLG index (RLG<I) shows that N.malapterurus is carnivore. In this study FOOD SELECTIVITY (IvIev Index) was mainly for family Blood worm (Chironomidae) with a frequency of 65.3% in the diet.

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APA: Copy

TABIEI, OMID, & ABDOLI, A.. (2005). A STUDY OF SOME BIOLOGICAL ASPECTS OF NEMACHEILUS MALAPTERURUS, ZARRINGOL RIVER, GOLESTAN PROVINCE. IRANIAN JOURNAL OF NATURAL RESOURCES, 57(4), 715-728. SID. https://sid.ir/paper/22831/en

Vancouver: Copy

TABIEI OMID, ABDOLI A.. A STUDY OF SOME BIOLOGICAL ASPECTS OF NEMACHEILUS MALAPTERURUS, ZARRINGOL RIVER, GOLESTAN PROVINCE. IRANIAN JOURNAL OF NATURAL RESOURCES[Internet]. 2005;57(4):715-728. Available from: https://sid.ir/paper/22831/en

IEEE: Copy

OMID TABIEI, and A. ABDOLI, “A STUDY OF SOME BIOLOGICAL ASPECTS OF NEMACHEILUS MALAPTERURUS, ZARRINGOL RIVER, GOLESTAN PROVINCE,” IRANIAN JOURNAL OF NATURAL RESOURCES, vol. 57, no. 4, pp. 715–728, 2005, [Online]. Available: https://sid.ir/paper/22831/en

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