Karyological analysis of Cyprinion macrostomum Heckel, 1843, from Godarkhosh River, Ilam Province, Iran
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Abstract:
In this study, for the first time in Iran, the karyotype of bigmouth Lotak, Cyprinion macrostomum Heckel, 1843, was investigated through examining metaphase chromosomes of seven fish with mean weight 30±5g caught by electrofishing from Godarkhosh River in Ilam Province. To stimulate cell divisions, fish were injected intraperitoneally two times by phytohemagglutinin (PHA). The cell divisions were arrested in metaphase stage by intraperitoneal injection of colchicine. Well-separated cells were obtained from kidney and gill filament and chromosome spreads were prepared and stained with giemsa. Karyotype was obtained as 2n=50. The karyotype consisted of 5 metacentric, 12 submetacentric and 8 telocentric chromosome pairs. Centromeric index, arm ratio and Fundamental Number (FN) were determined as 0-50, 1-∞, and 84, respectively.
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karyological analysis of cyprinion macrostomum heckel, 1843, from godarkhosh river, ilam province, iran
in this study, for the first time in iran, the karyotype of bigmouth lotak, cyprinion macrostomum heckel, 1843, was investigated through examining metaphase chromosomes of seven fish with mean weight 30±5g caught by electrofishing from godarkhosh river in ilam province. to stimulate cell divisions, fish were injected intraperitoneally two times by phytohemagglutinin (pha). the cell divisions we...
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full textReproductive biology of lotak, Cyprinion macrostomum Heckel, 1843 (Pisces: Cyprinidae), from the Tigris River drainage
Some reproduction aspects of the "doctor fish", Cyprinion macrostomum, were examined for the first time from the Tigris River drainage. A total of 316 specimens were caught from Gamasiab River in western Iran, at monthly intervals throughout the year from January to December 2013. Age, sex ratio, fecundity, oocytes diameter, gonado‑somatic (GSI), modified gonado‑somatic (MGSI) and Dobriyal (DI)...
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در تحقیق حاضر، تعداد 610 قطعه ماهی به وسیله تور پره جهت بررسی برخی پارامترهای رشد ماهی لوتک (C. macrostomum) از اسفند ماه 1390 تا تیر ماه 1391 صید گردید. نسبت جنسی نر به ماده مشاهداتی در جمعیت مورد مطالعه 1:1/19 بود. آنالیز آماری نشان داد که نسبت جنس های نر و ماده در جمعیت فوق یکسان است. بیشینه طول کل و وزن ماده ها 130 میلی متر و 25/94 گرم و برای نرها 115 میلی متر و 18/22 گرم ثبت گردید. رابطه ط...
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چکیده جنس cyprinion از خانواده cyprinidae تنها در آسیا پراکنش دارد. این جنس دارای نه گونه است که از بین آنها، پنج گونه در ایران گزارش شده است. گونه ی c. kais، c. macrostomum و c. tenuiradius در حوضه رودخانه های کرخه و کـارون، گزارش شده اند. بنابر گزارش های مختلف، وضعیت آرایه شناختی آنها در ابهام است. در این مطالعه تعداد 282 نمونه c. macrostomum و 24 نمونه c. kais با استفاده از تور پره، تور پرت...
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Journal title
volume 14 issue None
pages 786- 796
publication date 2015-07
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