The electrosense of sharks and rays is used to detect weak dipole-like bioelectric fields of prey, mates and predators, and several models propose a use for the detection of streaming ocean currents and swimming-induced fields for geomagnetic orientation. We assessed pore distributions, canal vectors, complementarity and possible evolutionary divergent functions for ampullary clusters in two sh...

At the Ninth Session of the Indian Ocean Tuna Commission in 2005, the commission adopted the resolution 05/05 , arising from the work of the Compliance Committee, concerning the conservation of sharks caught in association with fisheries managed by IOTC. It is stipulated that Contracting Parties and Cooperating non-Contracting Parties (CPCs) shall annually report their data for shark catches, r...

The Eastern Tropical Pacific (ETP) comprising the coasts of Costa Rica, Panama, Colombia and Ecuador, represents an area high marine biodiversity that supports productive fisheries acts as important migratory corridor for many species. Despite its biological importance, ETP is understudied lacks sufficient data science-based management conservation decision-making. This study aims to consolidat...

Abstract Background The Northwestern Pacific is a data-poor region for studies into the movements and habitat use of open ocean pelagic sharks. However, this experiences considerable pressure from commercial fishing. Therefore, shark movement data carry significant implications conservation management, particularly threatened species. Here, we provide first on seasonal residency scalloped hamme...

We investigated drivers of reef shark demography across a large and isolated marine protected area, the British Indian Ocean Territory Marine Reserve, using stereo baited remote underwater video systems. We modelled shark abundance against biotic and abiotic variables at 35 sites across the reserve and found that the biomass of low trophic order fish (specifically planktivores) had the greatest...