SURVEY ON FECUNDITY AND REPRODUCTIVE INDICES OF THE FEMALE NARROW-CLAWED CRAYFISH (ASTACUS LEPTODACTYLUS) IN ARAS DAM LAKE UNDER NATURAL CONDITIONS

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MIRHEYDARI SEYED MEHDI; MATINFAR ABBAS; SOLTANI MEHDI; KAMALI ABOLGHASEM; ASADPOUR OUSALOU YOUSEFALI

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Journal: JOURNAL OF MARINE BIOLOGY Year:2013 | Volume:5 | Issue:17 Page(s): 1-14

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Title

SURVEY ON FECUNDITY AND REPRODUCTIVE INDICES OF THE FEMALE NARROW-CLAWED CRAYFISH (ASTACUS LEPTODACTYLUS) IN ARAS DAM LAKE UNDER NATURAL CONDITIONS

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Keywords

ASTACUS LEPTODACTYLUSQ2

PLEOPODAL FECUNDITYQ3

OVARIAN FECUNDITYQ2

EGG WEIGHTQ2

EGG DIAMETERQ2

ARAS DAMQ2

Abstract

This study was carried out with the aim of examining the seasonal fecundity and developmental characteristics of the eggs of the female narrow-clawed Crayfish (ASTACUS LEPTODACTYLUS) from ARAS DAM Lake, Western-Azerbaijan during 2011. A positive correlation was found between both ovarian and PLEOPODAL FECUNDITY and female size. The mean value of ovarian eggs and PLEOPODAL FECUNDITY was 206.55 and 129.5, respectively. PLEOPODAL FECUNDITY was 37.3% lower than OVARIAN FECUNDITY. The value of the gonadosomatic index (GSI) in females sampled on November was 13.53% (11.63-15.91%). The average size of pleopodal eggs diameter was 2.2 mm (1.07-6.59 mm). The number of eggs attached to 3rd and 4th pairs of pleopods was significantly higher than other pleopods. The egg number and gonadosomatic index increased significantly with female size (P<0.05). Histological analysis showed the ovarian oocytes of A.leptodactylus developed as asynchronous form.

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APA: Copy

MIRHEYDARI, SEYED MEHDI, MATINFAR, ABBAS, SOLTANI, MEHDI, ASADPOUR OUSALOU, YOUSEFALI, & KAMALI, ABOLGHASEM. (2013). SURVEY ON FECUNDITY AND REPRODUCTIVE INDICES OF THE FEMALE NARROW-CLAWED CRAYFISH (ASTACUS LEPTODACTYLUS) IN ARAS DAM LAKE UNDER NATURAL CONDITIONS. JOURNAL OF MARINE BIOLOGY, 5(17), 1-14. SID. https://sid.ir/paper/174652/en

Vancouver: Copy

MIRHEYDARI SEYED MEHDI, MATINFAR ABBAS, SOLTANI MEHDI, ASADPOUR OUSALOU YOUSEFALI, KAMALI ABOLGHASEM. SURVEY ON FECUNDITY AND REPRODUCTIVE INDICES OF THE FEMALE NARROW-CLAWED CRAYFISH (ASTACUS LEPTODACTYLUS) IN ARAS DAM LAKE UNDER NATURAL CONDITIONS. JOURNAL OF MARINE BIOLOGY[Internet]. 2013;5(17):1-14. Available from: https://sid.ir/paper/174652/en

IEEE: Copy

SEYED MEHDI MIRHEYDARI, ABBAS MATINFAR, MEHDI SOLTANI, YOUSEFALI ASADPOUR OUSALOU, and ABOLGHASEM KAMALI, “SURVEY ON FECUNDITY AND REPRODUCTIVE INDICES OF THE FEMALE NARROW-CLAWED CRAYFISH (ASTACUS LEPTODACTYLUS) IN ARAS DAM LAKE UNDER NATURAL CONDITIONS,” JOURNAL OF MARINE BIOLOGY, vol. 5, no. 17, pp. 1–14, 2013, [Online]. Available: https://sid.ir/paper/174652/en

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