February 16th, 2020

First Record of the Longfin Mako Shark for Puerto Rico

First Record of the Longfin Mako Shark for Puerto Rico

First Confirmed Record of the Longfin Mako Shark (Isurus paucus) for Puerto Rico Mignucci-Giannoni AA, Cintrón-Nieves D, Franqui-Rivera G, Espinoza R, Orcera-Iglesias JM, Rivera-Ilarraza PJ, Rivera-Pérez CI, Rodríguez-Ferrer G. ABSTRACT: Isurus paucus (Longfin Mako) is a mesopelagic shark inhabiting tropical and subtropical waters. While records of Longfin Makos have been documented for the Western North

Performance of Two Survey Gears Targeting Elasmobranchs

Performance of Two Survey Gears Targeting Elasmobranchs

Performance of Two Survey Gears Targeting Elasmobranchs in a Shallow, Subtropical Estuary Grace Roskar, Michael P. McCallister, Matthew J. Ajemian ABSTRACT: Fishery‐independent surveys have become increasingly prevalent in recent decades for monitoring the population trends of highly mobile species like elasmobranchs (sharks and rays). Despite the utility of gear evaluations for streamlining costs and increasing

First study on age and growth of the deep-water Goblin Shark

First study on age and growth of the deep-water Goblin Shark

First study on age and growth of the deep-water Goblin Shark, Mitsukurina owstoni (Jordan, 1898) Fabio P. Caltabellotta, Zachary A. Siders, Gregor Cailliet, Fabio S. Motta, Otto B. F. Gadig ABSTRACT: Due to poorly mineralizing structures, ageing deep-water elasmobranchs requires nonconventional techniques. The aim of the present study was to develop a reliable ageing technique

Tourism-driven ocean science for sustainable use: A case study of sharks in Fiji

Tourism-driven ocean science for sustainable use: A case study of sharks in Fiji

Tourism-driven ocean science for sustainable use: A case study of sharks in Fiji C A Ward-Paige, J Brunnschweiler, H Sykes ABSTRACT: The oceans are in a state of rapid change – both negatively, due climate destabilization and misuse, and positively, due to strengthening of policies for sustainable use combined with momentum to grow the blue

Morphological deformities in the pelvic fin and clasper in Potamotrygon marquesi

Morphological deformities in the pelvic fin and clasper in Potamotrygon marquesi

Morphological deformities in the pelvic fin and clasper in specimens of Potamotrygon marquesi (Chondrichthyes: Myliobatiformes: Potamotrygoninae) João Paulo Capretz, Batista da Silva, André Luis da Silva Casas ABSTRACT: We report deformities in the pelvic fin and clasper skeleton in specimens of Potamotrygon marquesi from Acre, Northwestern Brazil. The malformations involve skeletal deformities in the pelvic