Morphofunctional variations of the Echinometra lucunter (Echinoidea) on Bahia Coast, Brazil
This study analyzes the morphometric aspects of two populations of Echinometra lucunter (Linnaeus, 1758) on Pituba and Itapuã beaches (Salvador, Bahia). Linear and volumetric measurements were performed on 117 specimens (test diameter > 40 mm) and the ratios between them were analyzed...
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Academia.edu Journals
2023-09-01
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| Series: | Academia Biology |
| Online Access: | https://www.academia.edu/106395370/Morphofunctional_variations_of_the_Echinometra_lucunter_Echinoidea_on_Bahia_Coast_Brazil |
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| author | Walter Ramos Pinto Cerqueira Yara Aparecida Garcia Tavares Natalie Petrovna Semanovschi Daniele Nascimento de Jesus |
| author_facet | Walter Ramos Pinto Cerqueira Yara Aparecida Garcia Tavares Natalie Petrovna Semanovschi Daniele Nascimento de Jesus |
| author_sort | Walter Ramos Pinto Cerqueira |
| collection | DOAJ |
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This study analyzes the morphometric aspects of two populations of Echinometra lucunter (Linnaeus, 1758) on Pituba and Itapuã beaches (Salvador, Bahia). Linear and volumetric measurements were performed on 117 specimens (test diameter > 40 mm) and the ratios between them were analyzed along with Aristotle’s lantern weight participation (AL index). The potential model was tested between AL wet weight and tooth height (log data), estimating the coefficients by linear regression. Echinoid specimens from Pituba (n = 57) manifested a higher average degree of sphericity and test thickness. Proportionally, this population also showed higher AL and tooth height, indicating that the dimensions of this structure exhibit particularities in the spatial arrangement along the oral-aboral axis of the echinoids. Negative allometric relationships (β < 1) were observed in all specimens. The environments with distinct characteristics and wide food availability associated with a broad spectrum of the trophic niche occupied by the populations point out modulations and specializations of morphofunctional strategies and the expression of phenotypes. |
| format | Article |
| id | doaj-art-ab0f78d3679c4460ad79be1b1c02bb9b |
| institution | Kabale University |
| issn | 2837-4010 |
| language | English |
| publishDate | 2023-09-01 |
| publisher | Academia.edu Journals |
| record_format | Article |
| series | Academia Biology |
| spelling | doaj-art-ab0f78d3679c4460ad79be1b1c02bb9b2025-02-11T00:36:39ZengAcademia.edu JournalsAcademia Biology2837-40102023-09-011310.20935/AcadBiol6128Morphofunctional variations of the Echinometra lucunter (Echinoidea) on Bahia Coast, BrazilWalter Ramos Pinto Cerqueira0Yara Aparecida Garcia Tavares1Natalie Petrovna Semanovschi2Daniele Nascimento de Jesus3Department of Biological Sciences, Zoology Museum, Aquatic Invertebrates Division, State University of Feira de Santana, Avenida Transnordestina, s/n - Novo Horizonte, CEP 44036-900, Feira de Santana, Bahia, Brazil.Center of Education, Humanities and Biological Sciences, Paranaguá Campus, Biological Sciences College, State University of Paraná, Rua Comendador Correa Junior, 117 - Centro, 83203-560, Paranaguá, Paraná, Brazil.Sector of Biological Sciences, Federal University of Paraná, Avenida Francisco H. dos Santos, 100, Jardim das Américas, CEP 81531-980, Curitiba, Paraná, Brazil.Department of Biological Sciences, Zoology Museum, Aquatic Invertebrates Division, State University of Feira de Santana, Avenida Transnordestina, s/n - Novo Horizonte, CEP 44036-900, Feira de Santana, Bahia, Brazil. This study analyzes the morphometric aspects of two populations of Echinometra lucunter (Linnaeus, 1758) on Pituba and Itapuã beaches (Salvador, Bahia). Linear and volumetric measurements were performed on 117 specimens (test diameter > 40 mm) and the ratios between them were analyzed along with Aristotle’s lantern weight participation (AL index). The potential model was tested between AL wet weight and tooth height (log data), estimating the coefficients by linear regression. Echinoid specimens from Pituba (n = 57) manifested a higher average degree of sphericity and test thickness. Proportionally, this population also showed higher AL and tooth height, indicating that the dimensions of this structure exhibit particularities in the spatial arrangement along the oral-aboral axis of the echinoids. Negative allometric relationships (β < 1) were observed in all specimens. The environments with distinct characteristics and wide food availability associated with a broad spectrum of the trophic niche occupied by the populations point out modulations and specializations of morphofunctional strategies and the expression of phenotypes.https://www.academia.edu/106395370/Morphofunctional_variations_of_the_Echinometra_lucunter_Echinoidea_on_Bahia_Coast_Brazil |
| spellingShingle | Walter Ramos Pinto Cerqueira Yara Aparecida Garcia Tavares Natalie Petrovna Semanovschi Daniele Nascimento de Jesus Morphofunctional variations of the Echinometra lucunter (Echinoidea) on Bahia Coast, Brazil Academia Biology |
| title | Morphofunctional variations of the Echinometra lucunter (Echinoidea) on Bahia Coast, Brazil |
| title_full | Morphofunctional variations of the Echinometra lucunter (Echinoidea) on Bahia Coast, Brazil |
| title_fullStr | Morphofunctional variations of the Echinometra lucunter (Echinoidea) on Bahia Coast, Brazil |
| title_full_unstemmed | Morphofunctional variations of the Echinometra lucunter (Echinoidea) on Bahia Coast, Brazil |
| title_short | Morphofunctional variations of the Echinometra lucunter (Echinoidea) on Bahia Coast, Brazil |
| title_sort | morphofunctional variations of the echinometra lucunter echinoidea on bahia coast brazil |
| url | https://www.academia.edu/106395370/Morphofunctional_variations_of_the_Echinometra_lucunter_Echinoidea_on_Bahia_Coast_Brazil |
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