Emanuel Lucas Bezerra Rocha, Lucas Gabriel Verissimo Pinheiro da Silva, Isadora Natália Rocha Barreto, Marcela Dos Santos Magalhães, Lucas Castanhola Dias, Radan Elvis Matias de Oliveira, Janine Karla França da Silva Braz, Moacir Franco de Oliveira, Carlos Eduardo Bezerra de Moura
This study aimed to investigate sexual dimorphism in stillborn hawksbill sea turtles (Eretmochelys imbricata) through gonadal morphological characterizations. Macroscopic, light microscopy, and transmission electron analyses were performed for 30 gonad-mesonephros complexes. Female gonads were spindle-shaped and present a translucent whitish appearance with a grainy texture. Male gonads were approximately ovoid with a smooth opaque white surface. A primary sexual difference concerns different marrow structures, with females presenting organized cellularity featuring oocytes, lacunae, and blood vessels, while males presented a distinct organizational medulla pattern marked by testicular cords extending throughout the gonad length...
January 22, 2024: Microscopy and Microanalysis