| Autor: |
K.I. N. Uba, H. M. Monteclaro, M. M. P. Noblezada-Payne, et al. |
| Jazyk: |
angličtina |
| Rok vydání: |
2019 |
| Předmět: |
|
| Zdroj: |
Computational Ecology and Software, Vol 9, Iss 3, Pp 107-120 (2019) |
| Druh dokumentu: |
article |
| ISSN: |
2220-721X |
| Popis: |
The shell is the most conspicuous and variable part of a bivalve and is largely affected by environmental conditions. Thus, this study was conducted to describe the changes in the shell shape of the horse mussel Modiolus metcalfei from Dumangas, Iloilo. Allometric changes in shape, sex-induced shape differences, and asymmetry were investigated using geometric morphometric methods. A total of 12 landmarks where used to obtain biological shape information from 60 horse mussel individuals. Multivariate analysis of variance revealed significant differences of shell shapes between sexes (Wilk's λ=0.01, p=1.26E-219). Generally, males have an expanded shell but compressed mid-shell region while females have compressed shell but expanded mid- and postero-ventral region. Moreover, the multivariate regression of shape on centroid size was statistically significant (p |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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