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First description of the embryos of the stingray Gymnura altavela (Linnaeus, 1758) (Myliobatiformes: Gymnuridae), a species at risk of extinction
Author(s) -
Paiva L. G.,
Julio T. G.,
Marques R. A.,
Vianna M.
Publication year - 2018
Publication title -
journal of applied ichthyology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.392
H-Index - 62
eISSN - 1439-0426
pISSN - 0175-8659
DOI - 10.1111/jai.13711
Subject(s) - biology , stingray , ontogeny , embryo , zoology , extinction (optical mineralogy) , anatomy , fishery , paleontology , genetics
Summary This contribution presents a brief morphometric description of adult females and embryos of the ray Gymnura altavela. Two females, pregnant with a total of five embryos, were captured in Rio de Janeiro, southeastern Brazil, and their morphometry was compared to their respective embryos. The embryos showed higher body proportions (%DW) than adults, regardless of sex, which may be an effect of ontogeny.