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: 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