Dermal Microstructural Morphology in Juveniles of Two Sister Species of Bonnethead Shark, Sphyrna tiburo and S. vespertina
Por:
Brain Carrasco-Martinez, Luis, Fernando Del-Moral-Flores, Luis, Emiliano Quintanar-Zuniga, Rafael, Sancho-Vazquez, Francisco
Publicada:
1 ago 2021
Categoría:
Anatomy
Resumen:
The dermal denticles are dermal structures present in the group of
chondrichthyans, they have a very important role in their biology and
they have been used as a taxonomic character that allows to recognize
groups or species. Therefore, in the present work, the dermal morphology
of the juveniles of two species of shovel sharks, Sphyrna tiburo and S.
vespertina, whose evolutionary origin is related to the closure of the
Central American isthmus, is compared. For this, dermal samples (1
cm(2)) from three body regions were obtained and processed to obtain
high resolution images by means of scanning electron microscopy (SEM).
The denticles of both species have a common morphological pattern, with
variations in the length of the ridge extensions, free area and
overlapping of the denticles, and the degree of notoriety of the
microstructural ornamentation.
Filiaciones:
Brain Carrasco-Martinez, Luis:
Del-Moral-Flores, LF (Corresponding Author), Univ Nacl Autonoma Mexico, Fac Estudios Super Iztacala, Lab Zool, Av de los Barrios 1, Tlalnepantla 54090, Estado De Mexic, Mexico. Brain Carrasco-Martinez, Luis
Fernando Del-Moral-Flores, Luis:
Del-Moral-Flores, LF (Corresponding Author), Univ Nacl Autonoma Mexico, Fac Estudios Super Iztacala, Lab Zool, Av de los Barrios 1, Tlalnepantla 54090, Estado De Mexic, Mexico. Brain Carrasco-Martinez, Luis
Emiliano Quintanar-Zuniga, Rafael:
Del-Moral-Flores, LF (Corresponding Author), Univ Nacl Autonoma Mexico, Fac Estudios Super Iztacala, Lab Zool, Av de los Barrios 1, Tlalnepantla 54090, Estado De Mexic, Mexico. Brain Carrasco-Martinez, Luis
Sancho-Vazquez, Francisco:
Del-Moral-Flores, LF (Corresponding Author), Univ Nacl Autonoma Mexico, Fac Estudios Super Iztacala, Lab Zool, Av de los Barrios 1, Tlalnepantla 54090, Estado De Mexic, Mexico. Brain Carrasco-Martinez, Luis
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