Results 11 to 20 of about 389 (135)

Microsatellite Analyses of Blacktip Reef Sharks (Carcharhinus melanopterus) in a Fragmented Environment Show Structured Clusters [PDF]

PLoS ONE, 2013
The population dynamics of shark species are generally poorly described because highly mobile marine life is challenging to investigate. Here we investigate the genetic population structure of the blacktip reef shark (Carcharhinus melanopterus) in French
Eric Clua, Johann Mourier, Jeffrey Maynard   +2 more
exaly   +6 more sources

Sex-based differences in movement and space use of the blacktip reef shark, Carcharhinus melanopterus. [PDF]

PLoS ONE, 2020
Information on the spatial ecology of reef sharks is critical to understanding life-history patterns, yet gaps remain in our knowledge of how these species move and occupy space.
Audrey M Schlaff, Michelle R Heupel, Vinay Udyawer, Colin A Simpfendorfer   +3 more
doaj   +6 more sources

Microbothriid (Monogenean) Infection and Treatment in Captive Blacktip Reef Shark (Carcharhinus melanopterus) [PDF]

Microorganisms
Unlike other microbothriid monogenean infections in elasmobranchs, limited information is available on the biology and treatment of Dermophthirius melanopteri. As parasitic infection with D.
Hee Jun Ko, Sung Bin Lee, Kee Hoon Kim, So Young Jeon, Ji Yun Jung, Yun Mi Choi, Se Chang Park   +6 more
doaj   +4 more sources

A blacktip's black tip: The reliability of using dorsal-fin patterns for photo identification of blacktip reef sharks (Carcharhinus melanopterus). [PDF]

J Fish Biol
Abstract Photo identification (photo ID) has increasingly become a valuable technique serving not only to identify individual animals but also to monitor populations, track migration patterns and assess wildlife health, among others uses. Various species of sharks are amenable to photo ID, among which the blacktip reef shark (Carcharhinus melanopterus)
Lionnet LAMG, Debaere SF, Heuls H, Mourier J, Planes S, Rummer JL.   +5 more
europepmc   +7 more sources

Genetic evidence for plastic reproductive philopatry and matrotrophy in blacktip reef sharks (Carcharhinus melanopterus) of the Moorea Island (French Polynesia) [PDF]

Scientific Reports, 2023
The exploitation of sharks and the degradation of their habitats elevate the urgency to understand the factors that influence offspring survival and ultimately shark reproductive success.
Kim B. Eustache, Émilie Boissin, Céline Tardy, Ian A. Bouyoucos, Jodie L. Rummer, Serge Planes   +5 more
doaj   +2 more sources

Insights into the structure of grey reef shark aggregation, Carcharhinus amblyrhynchos (Bleeker, 1856), in two distinct channels of the Maldivian archipelago, Indian Ocean. [PDF]

J Fish Biol
Abstract The grey reef shark Carcharhinus amblyrhynchos is one of the most frequently encountered reef‐associated shark species in the Maldives, yet very little is known about its local size structure or population dynamics. This study provides new insights into two aggregations of C.
Parmegiani A, Gobbato J, Yoosuf R, Seveso D, Galli P, Whitehead AD, Ismail Y, Montano S.   +7 more
europepmc   +2 more sources

Observations of sharks (Elasmobranchii) at Europa Island, a remote marine protected area important for shark conservation in the southern Mozambique Channel. [PDF]

PLoS ONE, 2021
Sharks have declined worldwide and remote sanctuaries are becoming crucial for shark conservation. The southwest Indian Ocean is a hotspot of both terrestrial and marine biodiversity mostly impacted by anthropogenic damage.
Mireille M M Guillaume, Bernard Séret
doaj   +2 more sources

Potential metabolic records in isotope signals of chondrichthyan hard tissues. [PDF]

J Fish Biol
Abstract Recent advances have demonstrated that the field metabolic rates (FMRs) of teleost fishes can be quantified from stable isotope compositions of carbonate‐biomineralized otoliths. Bones and teeth, in addition to bioapatite, contain carbonate and should retain a similar isotopic expression of metabolic rate.
Díaz-Delgado E, Chung MT, Magozzi S, Willis TJ, Trueman CN.   +4 more
europepmc   +2 more sources

Surface morphology and distribution of oropharyngeal taste papillae in sharks and rays (Elasmobranchii, Chondrichthyes): Implications for gustatory sensitivity. [PDF]

J Anat
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

Trouble in the Tank: A Case Report of Fatal Scuticociliate Encephalitis in a Whitetip Reef Shark (Triaenodon obesus). [PDF]

J Fish Dis
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, Schreiner J, Prüllage M, Lipnik K, Holzer AS, Lewisch E.   +5 more
europepmc   +2 more sources