| تعداد نشریات | 286 |
| تعداد نشریات سازمان | 84 |
| تعداد شمارهها | 2,828 |
| تعداد مقالات | 32,031 |
| تعداد مشاهده مقاله | 40,821,152 |
| تعداد دریافت فایل اصل مقاله | 18,073,791 |
A prelimenary study on fecundity of fresh water crayfish (Astacus leptodactylus) in Arass water reservior, I.R. Iran | ||
| Iranian Journal of Fisheries Sciences | ||
| مقاله 1، دوره 1، شماره 2، مهر 1999، صفحه 1-9 اصل مقاله (1.49 M) | ||
| شناسه دیجیتال (DOI): 10.22092/ijfs.2018.114867 | ||
| نویسندگان | ||
| N. Hosseinpour* ؛ M. Karimpour | ||
| چکیده | ||
| A research study was conducted to investigate the number of ovarian eggs and estimate potential egg production of A. leptodactylus. In this study, mean number ovarian eggs 420.41±42.51 with the average total length to 121.93±4.27 mm (n=58). The mean pleopodal eggs were 322.04±29.61 with average total length of 119.14±3.94 mm (n=67). Comparison of the fecundity rate in different population of A. leptodactylus in different areas revealed that the Arass crayfish has a greater fecundity rate than others. The discrepancy between ovarian eggs and pleopodal eggs were 21% in Arass reservoir. | ||
| کلیدواژهها | ||
| CRAYFISH؛ ASTACUS LEPTODACTYLUS؛ fecundity؛ Monitoring programms | ||
|
آمار تعداد مشاهده مقاله: 175 تعداد دریافت فایل اصل مقاله: 130 |
||