نوع مقاله : مقاله پژوهشی
نویسندگان
1 گروه کشاورزی، دانشگاه پیام نور، تهران، ایران
2 گروه زیست شناسی، دانشگاه پیام نور، تهران، ایران
چکیده
کلیدواژهها
موضوعات
عنوان مقاله [English]
نویسندگان [English]
This study was done monthly on sandy coast of Gehrdo located in southwest of Sirik city from December 2019 to November 2020 using net, randomly. Overall, 310 individuals of M. victor were collected which distinguished 181 male and 129 female. Carapace width range of male and female crabs were obtained 16.4-44.3 mm and 19.3-36.9 mm respectively. Also, weight range of male and female crabs were obtained 1.75-37.83 mm and 3.22-16.79 mm respectively. In this study, maximum collected male and female crabs were observed in length range of 19.8-23.2 mm and 26.6-30 mm respectively. There were not any female crabs in length range of 40.2-43.6 mm and 43.6-47 mm. The positive and negative allometric growth were observed for male and female crabs respectively. Also, exponential value (b) estimated of male crab (3.11) was significantly more than of female crab (2.75) (P<0.05). Regression analysis of relative growth between carapace length and carapace width showed significant difference between males and females. Among the studied parameters, proportion of Sternum width, distance between two spines, first abdomen width was significantly more in females (P<0.05). On the other hand, proportion of chela length was significantly more in males (P<0.05). The results derived of this study can useful for conservation of M. victor with aimed to preserve the biodiversity.
کلیدواژهها [English]