ABOUNDANCE, SPAWNING SEASON AND TYPE OF GATTAN (BARB US XANTHOPTERUS HECKEL, 1843) IN SOUTH OF KARKHEH RIVER AND HOUR-AI-AZIM MARSH (KHOUZESTAN PROVINCE)

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ESKANDARI GH.; SAFIKHANI H.; DEHGHAN S.; ESMAEILY F.; AMIRINEYA S.

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Journal: Iranian Scientific Fisheries Journal Year:2000 | Volume:9 | Issue:2 Page(s): 1-26

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Title

ABOUNDANCE, SPAWNING SEASON AND TYPE OF GATTAN (BARB US XANTHOPTERUS HECKEL, 1843) IN SOUTH OF KARKHEH RIVER AND HOUR-AI-AZIM MARSH (KHOUZESTAN PROVINCE)

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Keywords

SPAWNINGQ3

ABOUNDANCEQ2

BARBUS XANTHOPTERUSQ4

KHOUZESTAN PROVINCEQ3

IRANQ3

Abstract

In this study 401 specimens of Gattan (Barbus xanthopterus) caught by drifting and set gillnets, cast nets and forks were studied. Samples were collected monthly (October 1996 to September 1997) from Hamidieh Dam to Hour-AI-Azim Lagoon. Morphometric and meristic parameters and biological characteristics were studied in the laboratory. The Highest frequency of Gattan in the river was in March and in Hour-AI-Azim was in December. The length range of the fish in the river was broader than in the hour, and fishes with lengths more than 700mm were only observed in the river. Sharp decrease in GSI in May and occurence of SPAWNING in May and June showed that reproduction of this species occurs in spring (in a two month period) and is relativery short. Minimum and maximum ova diameter were 0.01 mm and 2.25mm in stages II and IV of gonad maturity respectively. An increasing trend in ova diameter up to April and decreasing in June showed one time SPAWNING of this species. Surface water temperature in the SPAWNING season was between 25.5OC and 28.65OC and turbidity was in its lowest level in this period. Sex maturation in males occurred in length of 151-200mm (one year old), and in females in 501-550mm (3 years old). Average sex ratio (male to female) was 1:1.31 which is not significantly different from 1:1 (95% confidence limit).

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تنوع زیستی ماهیان آب شیرین ایران

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APA: Copy

ESKANDARI, GH., SAFIKHANI, H., DEHGHAN, S., ESMAEILY, F., & AMIRINEYA, S.. (2000). ABOUNDANCE, SPAWNING SEASON AND TYPE OF GATTAN (BARB US XANTHOPTERUS HECKEL, 1843) IN SOUTH OF KARKHEH RIVER AND HOUR-AI-AZIM MARSH (KHOUZESTAN PROVINCE). IRANIAN SCIENTIFIC FISHERIES JOURNAL, 9(2), 1-26. SID. https://sid.ir/paper/4737/en

Vancouver: Copy

ESKANDARI GH., SAFIKHANI H., DEHGHAN S., ESMAEILY F., AMIRINEYA S.. ABOUNDANCE, SPAWNING SEASON AND TYPE OF GATTAN (BARB US XANTHOPTERUS HECKEL, 1843) IN SOUTH OF KARKHEH RIVER AND HOUR-AI-AZIM MARSH (KHOUZESTAN PROVINCE). IRANIAN SCIENTIFIC FISHERIES JOURNAL[Internet]. 2000;9(2):1-26. Available from: https://sid.ir/paper/4737/en

IEEE: Copy

GH. ESKANDARI, H. SAFIKHANI, S. DEHGHAN, F. ESMAEILY, and S. AMIRINEYA, “ABOUNDANCE, SPAWNING SEASON AND TYPE OF GATTAN (BARB US XANTHOPTERUS HECKEL, 1843) IN SOUTH OF KARKHEH RIVER AND HOUR-AI-AZIM MARSH (KHOUZESTAN PROVINCE),” IRANIAN SCIENTIFIC FISHERIES JOURNAL, vol. 9, no. 2, pp. 1–26, 2000, [Online]. Available: https://sid.ir/paper/4737/en

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