The response to capture is important in fisheries because it can reveal potential threats to species beyond fishing mortalities resulting from direct harvest. To date, the vast majority of studies assessing shark stress responses have used physiology or biotelemetry to look at sensitivity after capture, leaving a gap in our understanding of the behaviours of sharks during capture. We examined t...

One key issue for standardizing catch per unit effort (CPUE) of bycatch species is how to model observations of zero catch per fishing operation. Typically, the fraction of zero catches is high, and catch counts may be overdispersed. In this study, we develop a model selection andmultimodel inference approach to standardize CPUE in a case study of oceanic whitetip shark (Carcharhinus longimanus...

Sharks and rays are a global conservation concern with an increasing number of species considered at risk extinction, mostly due to overfishing. Although the recreational harvest sharks is poorly documented generally minimal, it can be comparable commercial harvest. In this study, we quantified in Western Australia, region marine coastline greater than 20,000 km. A total 33 species/taxonomic gr...

Rare appearances of bull sharks (Carcharhinus leucas) in river systems and other freshwater ecosystems have been reported from five continents. The wide geographic range this phenomenon, the physiological adaptations species to allow for movement into rivers, a fossil record Miocene Epoch, all imply that behavior has long history. In Mississippi River basin, however, only two specimens were cap...

Abstract Reef sharks, including blackfins ( Carcharhinus melanopterus ) reside in the lagoons and on outer slopes of barrier reefs Mo’orea Island, French Polynesia. In general are shallow enough to permit underwater observation, while dive clubs hold shark dives at different sites ocean. Thus, presence blackfin sharks especially, other species times, is confirmed daily. Between about 21 July 2 ...