Results 31 to 40 of about 3,935 (204)
South African Journal of Science, 2019 The white shark (Carcharodon carcharias) is responsible for 49% of shark-related injuries in South Africa, yet no information currently exists on the composition or antibiotic resistance of bacteria hosted by these apex predators in South African waters.
Enrico Gennari +9 more
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The European Zoological Journal, 2021 The white shark Carcharodon carcharias has been present in the Mediterranean Sea since 3.2 million years ago. Nevertheless, the current population shows a low genetic variability suggesting an endangered small population, on which there is scarce ...
L. Bevacqua +11 more
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Shark–seal interaction off South Africa’s west coast during the early Pliocene (5 Ma)
South African Journal of Science, 2021 A study of the Mio-Pliocene marine palaeoenvironment on South Africa’s west coast revealed aspects of the biology and behaviour of fossil marine mammals.
Romala Govender
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Megalodon, mako shark and planktonic foraminifera from the continental shelf off Portugal and their age [PDF]
, 2015 Turbidite fragments collected by a fishing net off the central Portuguese coast (Peniche) present some fossils. The matrix is phosphatized and iron-rich with small quantities of manganese, zinc and copper.
Antunes, Miguel Telles +2 more
core +3 more sources
Acta Palaeontologica PolonicaRecent isotopic analyses of the teeth of the extinct lamnid Carcharodon hastalis showed that it fed at a comparable trophic level as was the fossil and modern great white shark, Carcharodon carcharias. Although there are many examples of shark bite marks
Stephen J. Godfrey +5 more
doaj +1 more source
Detecting Southern California’s White Sharks With Environmental DNA
Frontiers in Marine Science, 2018 To improve ability to detect white sharks without the need for tags, or visual census, we developed a species-specific environmental DNA (eDNA) assay that targets a 163 bp fragment of the white shark (Carcharodon carcharias) mitochondrial cytochrome B ...
Kevin D. Lafferty +5 more
doaj +1 more source
Chondrichthyan Fauna from the Pirabas Formation, Miocene of Northern Brazil, with Comments on Paleobiogeography [PDF]
Anuário do Instituto de Geociências, 2005 The chondrichthyan fauna from the Pirabas Formation is redescribed. Only thirteen nominal taxa are considered valid. From these taxa, ten were reassigned to extant taxa (Carcharhinus sorrah, Carcharhinus perezii, Galeocerdo cuvier, Rhizoprionodon ...
Márcia Aparecida Fernandes dos Reis
doaj
Diving behaviour of whale sharks in relation to a predictable food pulse [PDF]
, 2005 We present diving data for four whale sharks in relation to a predictable food pulse (reef fish spawn) and an analysis of the longest continuous fine-resolution diving record for a planktivorous shark.
Callum M Roberts +4 more
core +2 more sources
White sharks exploit the sun during predatory approaches
, 2015 There is no conclusive evidence of any nonhuman animal using the sun as part of its predation strategy. Here, we show that the world\u27s largest predatory fish-the white shark (Carcharodon carcharias)-exploits the sun when approaching baits by ...
Endler, John A. +5 more
core +2 more sources
Shark incidents in California 1950-2021; frequency and trends
Frontiers in Marine Science, 2022 Many reports have categorized the frequency, circumstances, and causes for interactions between sharks and humans, often using the behaviorally inaccurate term “attack.” The California Department of Fish and Wildlife (Department) instead uses the term ...
John Ugoretz +2 more
doaj +1 more source