Metabolic organization of pregnant freshwater stingray and their offspring.
J Fish Biol
; 2024 May 27.
Article
en En
| MEDLINE
| ID: mdl-38800844
ABSTRACT
The elucidation of energetic patterns in adult viviparous elasmobranchs and their offspring can contribute to understanding ecophysiological questions, such as maternal-fetal metabolism and group life-history traits. We characterized the energetic substrates in pregnant individuals and stages of offspring development in the freshwater stingray Potamotrygon amandae. Our results show that the energetic distribution of the yolk is composed of more lipids than proteins, whereas the inverse pattern is observed in the egg and uterus, proving the plasticity of the energy provision of the species. As a novelty, we describe that yolk/intestine transfer occurs in this species.
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MEDLINE
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En
Revista:
J Fish Biol
Año:
2024
Tipo del documento:
Article
País de afiliación:
Brasil