September 25th, 2022

Growth, reproduction, and age at maturity of Lessa’s butterfly ray

Growth, reproduction, and age at maturity of Lessa’s butterfly ray

Growth, reproduction, and age at maturity of Lessa’s butterfly ray Gymnura lessae in the northern Gulf of Mexico Matthew B. Jargowsky, Bryan L. Huerta-Beltrán, Matthew J. Ajemian, Michael E. Colvin, J. Marcus Drymon ABSTRACT: In the northern Gulf of Mexico, batoids are caught as bycatch in the shrimp trawl fishery and targeted by recreational bowfishers.

Placoid scales in bioluminescent sharks

Placoid scales in bioluminescent sharks

Placoid scales in bioluminescent sharks: Scaling their evolution using morphology and elemental composition Alexia Lourtie, Laurent Duchatelet, Nicolas Straube, Nathan Puozzo, Mark A. Grace, Gavin J. P. Naylor, Jérôme Delroisse ABSTRACT: Elasmobranchs are characterised by the presence of placoid scales on their skin. These scales, structurally homologous to gnathostome teeth, are thought to have various