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Observations on the Frequency of Sightings of White Sharks in the Population of Gansbaai, South Africa, in the Presence of Cage Diving [PDF]

open access: yesBiology
Shark ecotourism is an ever-expanding reality, with hundreds of thousands of tourists involved annually. Although it represents a fundamental tool for sharing the urgent need to safeguard sharks with the public, the implications for the health and well ...
Primo Micarelli   +5 more
doaj   +2 more sources

Inferring leader-follower dynamics in three shark species using acoustic telemetry data [PDF]

open access: yesMovement Ecology
Background Understanding collective behaviours and interactions in sharks is still in its infancy. Although recent studies have revealed some social structures in several shark species, little is known about complex interactions and social processes such
Nils Kreuter   +3 more
doaj   +2 more sources

An integrated baseline assessment of reef-associated sharks around Saba (Dutch Caribbean), combining three methods: stereo-BRUVs, telemetry and citizen science [PDF]

open access: yesRoyal Society Open Science
The Exclusive Economic Zone of Saba (Dutch Windward Islands) has been designated Yarari Marine Mammal and Shark Sanctuary. However, to effectively conserve sharks, a baseline on their diversity and spatiotemporal distribution is required.
Guido Leurs   +8 more
doaj   +2 more sources

Species associated with whale sharks Rhincodon typus (Orectolobiformes, Rhincodontidae) in the Galapagos Archipelago [PDF]

open access: yesBiodiversity Data Journal, 2023
Whale sharks Rhincodon typus frequently appear to interact or associate with other species, which vary depending on the community structure and the demographic of the whale sharks at each location globally. Here, we present the species sighted frequently
Sofia Green, Alex Hearn, Jonathan Green
doaj   +3 more sources

Passive Prey Discrimination in Surface Predatory Behaviour of Bait-Attracted White Sharks from Gansbaai, South Africa

open access: yesAnimals, 2021
Between the years 2008 and 2013, six annual research expeditions were carried out at Dyer Island (Gansbaai, South Africa) to study the surface behaviour of white sharks in the presence of two passive prey: tuna bait and a seal-shaped decoy.
Primo Micarelli   +4 more
doaj   +1 more source

Impacts of trophy collection and commercial fisheries on sawfishes in Queensland, Australia

open access: yesEndangered Species Research, 2023
Globally, populations of sawfishes (Batoidea: Pristidae) have declined due to directed fishing and bycatch. Before international trade protection, sawfish rostra were often collected as trophies, and sawfish fins could fetch some of the highest prices in
BE Wueringer, VN Biskis, GA Pinkus
doaj   +1 more source

Evidence of Non-Random Social Interactions between Pairs of Bait-Attracted White Sharks in Gansbaai (South Africa)

open access: yesDiversity, 2023
Knowledge about the social behavior of sharks is a growing research field, but not many observations are available on the social interactions between pairs of sharks in the presence of passive surface bait and mainly related to aggregations. Between 2009
Primo Micarelli   +5 more
doaj   +1 more source

Analysis of sightings of white sharks in Gansbaai (South Africa)

open access: yesThe European Zoological Journal, 2021
In Gansbaai (South Africa), at Dyer Island Nature Reserve, a large White shark population is present and can be observed due to the support of local ecotourism operators authorised to reach the field observation sites.
P. Micarelli   +5 more
doaj   +1 more source

Influence of Environmental Factors on Prey Discrimination of Bait-Attracted White Sharks from Gansbaai, South Africa

open access: yesAnimals, 2022
The influence of environmental factors on prey discrimination of bait-attracted white sharks was studied over a six-year period (2008–2013) at Dyer Island Nature Reserve (Gansbaai, South Africa).
Francesca Romana Reinero   +5 more
doaj   +1 more source

Sharks senses and shark repellents [PDF]

open access: yesIntegrative Zoology, 2015
AbstractDespite over 70 years of research on shark repellents, few practical and reliable solutions to prevent shark attacks on humans or reduce shark bycatch and depredation in commercial fisheries have been developed. In large part, this deficiency stems from a lack of fundamental knowledge of the sensory cues that drive predatory behavior in sharks.
Nathan S, Hart, Shaun P, Collin
openaire   +2 more sources

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