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The Impacts of Elasmobranch Provisioning on the Behavior of Blacktip Reef Sharks (Carcharhinus melanopterus)

Authors: Paradise, Jemma;

The Impacts of Elasmobranch Provisioning on the Behavior of Blacktip Reef Sharks (Carcharhinus melanopterus)

Abstract

On the island of Moorea, French Polynesia, tourism operators have engaged in consistent elasmobranch provisioning at specific sites since the 1990s, conditioning the area’s shark and ray populations to human feeding and developing profitable lagoon tours based on close-contact elasmobranch encounters. Over the years, various scientific studies have established that this provisioning significantly increases the density of elasmobranch populations at such feeding sites, with potential repercussions for the behavior of these species and the health of the ecosystem as a whole. However, the impacts of provisioning on individual, interaction-level elasmobranch behavior remains largely unexamined. Focusing on Moorea’s blacktip reef shark (Carcharhinus melanopterus) populations, this study will investigate whether elasmobranch provisioning impacts the species’ levels of aggression and/or territorial behaviors, comparing observed behaviors at comparable feeding and non-feeding sites. Using a combination of in-the-field observations and photographic methods, I will specifically examine 1) the presence of aggressive or territorial interactions between individual blacktip sharks and 2) the presence of over-confident or aggressive behaviors towards people within the provisioning areas. In doing so, I hope to gain a greater understanding of possible impacts on shark behavioral dynamics or health, so as to inform any measures that shark operators should take to enhance both shark health and human safety.

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
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