|
Study of relative growth pattern, sexual dimorphism, and morphometric maturity of two species crabs Ocypode rotundata (Miers, 1882) and Austruca iranica (Pretzmann, 1971) on the coasts of Qeshm Island, Persian Gulf
|
Mojtaba Naderi1   , Yeganeh Darvish Oladi1 , Parviz Zare2 |
1- payam noor university
2- Gorgan university |
|
|
Abstract: (971 Views) |
| In this study, relative growth, sexual dimorphism, and morphometric maturity of Ocypode rotundata and Austruca iranica were investigated on western south and northern of Qeshm Island. The samples were collected in February 2021. Based on the carapace width, the males of O. rotundata (33.1 mm) and males of A. iranica (12.4 mm) had average carapace width more than female crabs (32.2 mm and 11.2 mm). The male and female of A. iranica and O. rotundata had significantly different between three (first part of abdomen width, fourth part of abdomen width, and sixth part of abdomen width) and four (abdomen length, first part of abdomen width, and fourth part of abdomen width, sixth part of abdomen width) traits, respectively (p< 0.05). The calculated values of CW50 based on the morphometric maturity for O. rotundata males with three methods of common, Bootstrap and Bayesian were 33.02 mm, 32.82 mm, and 33.05 mm, respectively. This value was 29 mm for female crabs with three methods. Also, the morphometric maturity values for males and females of A. iranica were similar to the three performed methods. The values in the male and female were obtained 11.61 mm and 9.15 mm, respectively. Based on the results, the CW50 value in the male crabs for both studied species was more than the female crabs. |
|
| Keywords: Morphometric maturity, Relative growth, Sexual dimorphism, Abdomen |
|
|
Full-Text [PDF 1239 kb]
(784 Downloads)
|
Type of Study: Research |
Subject:
بيولوژي آبزيان
Received: 2022/11/9 | Accepted: 2023/07/1 | Published: 2023/07/1
|
|
|
|
|
|
|
| Send email to the article author |
|
|
|
| Add your comments about this article |
|
|
|
