Lay Summary In tropical nearshore habitats, thermal stressors may exacerbate existing stressors in sharks. Here, we investigated the mobilization of plasma corticosteroids and metabolites in response to a heatwave stress and air exposure in the blacktip ...
A. Schoen +6 more
semanticscholar +4 more sources
Overexploitation of sharks and the destruction of their habitat has led to severe population declines and the need for conservation and management actions.
J. Mourier +2 more
semanticscholar +3 more sources
Unusual occurrence of abnormal skin pigmentation in blacktip reef sharks (Carcharhinus melanopterus) [PDF]
A. Bruckner, G. Coward
semanticscholar +2 more sources
Defining ecological roles of sharks on coral reefs. [PDF]
ABSTRACT Sharks have often been perceived to play a critical role in the dynamics of coral reef ecosystems globally. Yet, there is relatively little evidence to support this idea across all but a limited set of species and contexts. Research on the roles and importance of reef sharks has been complicated by logistical challenges in collecting data on ...
Klinard NV +3 more
europepmc +2 more sources
Trouble in the Tank: A Case Report of Fatal Scuticociliate Encephalitis in a Whitetip Reef Shark (Triaenodon obesus). [PDF]
Abstract This case report presents a recent case of scuticociliatosis in a whitetip reef shark (Triaenodon obesus), housed at a zoo (Haus des Meeres Aqua Terra Zoo, Vienna, Austria). Clinical signs such as uncoordinated swimming and body tilt were observed prior to death.
Schwegler H +5 more
europepmc +2 more sources
Surface morphology and distribution of oropharyngeal taste papillae in sharks and rays (Elasmobranchii, Chondrichthyes): Implications for gustatory sensitivity. [PDF]
This study investigates the morphology, abundance, and distribution of taste papillae in the oropharyngeal cavity of a range of elasmobranchs using SEM, histology, and topographic analyses. The interspecific importance of gustation is reflected in quantitative differences in the size, density, and distribution of taste papillae, which have implications
Atkinson CJL, Collin SP.
europepmc +2 more sources
Olfaction Contributes to Pelagic Navigation in a Coastal Shark. [PDF]
How animals navigate the constantly moving and visually uniform pelagic realm, often along straight paths between distant sites, is an enduring mystery. The mechanisms enabling pelagic navigation in cartilaginous fishes are particularly understudied.
Chai, Fei +4 more
core +15 more sources
Long-term changes in species composition and relative abundances of sharks at a provisioning site. [PDF]
Diving with sharks, often in combination with food baiting/provisioning, has become an important product of today's recreational dive industry. Whereas the effects baiting/provisioning has on the behaviour and abundance of individual shark species are ...
Juerg M Brunnschweiler +2 more
doaj +1 more source
Shark Provisioning Influences the Gut Microbiota of the Black-Tip Reef Shark in French Polynesia
There is an increasing interest in touristic observations of top predators in the wild. Sharks are probably the most sought-after animal in marine ecosystems by divers.
Anaïs Esposito +4 more
doaj +1 more source
The shark assemblage at French Frigate Shoals atoll, Hawai'i: species composition, abundance and habitat use. [PDF]
Empirical data on the abundance and habitat preferences of coral reef top predators are needed to evaluate their ecological impacts and guide management decisions.
Jonathan J Dale +3 more
doaj +1 more source

