BECAS
NIETO VILELA RocÍo AimÉ
artículos
Título:
Lethal Consequences and Embryo Shell Shape Alterations in the Marine Gastropod Trophon geversianus Due to Elevated Temperatures
Autor/es:
ROCIO NIETO VIELA; GIULIANELLI SEBASTIÁN; ZABALA, SOLEDAD; BIGATTI, GREGORIO; FEDERICO MÁRQUEZ
Revista:
ZOOLOGICAL STUDIES
Editorial:
ACAD SINICA INST ZOOLOGY
Referencias:
Lugar: Taiwan; Año: 2024 vol. 63
ISSN:
1021-5506
Resumen:
under new conditions, resulting in the expression of new phenotypic traits. Still, the links between thesenew environmental conditions and the subsequent phenotypic expressions are not fully explored. Here, weconducted manipulative experiments with the marine gastropod Trophon geversianus embryos to assessthe effects of warmer temperatures in shell form. We observed lethal effects together with alterations in theshell form (size + shape) of embryos exposed to 18°C compared to the control temperature (13°C). Ourresults reveal that T. geversianus from Patagonian coasts growing under warm temperatures will changetheir phenotype by selecting smaller and more elongated shells in the ontogeny, as well as an expansionof the shell aperture, increasing their predation vulnerability. Therefore, we considered that the embryonicshell shape change could be a good biomarker of thermal stress produced at early developmental stagesin marine gastropods.
