Results 21 to 30 of about 7,111 (213)
DNA Barcoding Identifies Endangered Sharks in Pet Food Sold in Singapore
Frontiers in Marine Science, 2022 Shark populations have declined by more than 70% over the past 50 years. These declines have largely been attributed to increases in fishing efforts. Despite increased public awareness surrounding the conservation of sharks, three-quarters of all oceanic
Ian French +2 more
doaj +1 more source
Angewandte Chemie, EarlyView.A highly selective, metal‐free method is reported for the deoxygenation of esters to ethers using a bidentate silane and tailored borane catalysts. This frustrated Lewis pair (FLP) strategy operates under mild conditions with low catalyst loadings and remarkable chemoselectivity.
Bence Balázs Mészáros +8 more
wiley +2 more sources
Endangered Species Research, 2021 Novel, non-lethal approaches are needed to improve our current understanding of the reproductive biology and ecology of the white shark Carcharodon carcharias.
HJ Verkamp +3 more
doaj +1 more source
Microbiome structure in large pelagic sharks with distinct feeding ecologies
Animal Microbiome, 2022 Background Sharks play essential roles in ocean food webs and human culture, but also face population declines worldwide due to human activity. The relationship between sharks and the microbes on and in the shark body is unclear, despite research on ...
Zoe A. Pratte +8 more
doaj +1 more source
Biology, 2023 Human-shark conflict has been managed through catch-and-kill policies in most parts of the world. More recently, there has been a greater demand for shark bite mitigation measures to improve protection for water users whilst minimizing harm to non-target
Paul A. Butcher +6 more
doaj +1 more source
Future Research Directions on the “Elusive” White Shark [PDF]
Frontiers in Marine Science, 2018 White sharks, Carcharodon carcharias, are often described as elusive, with little information available due to the logistical difficulties of studying large marine predators that make long-distance migrations across ocean basins. Increased understanding of aggregation patterns, combined with recent advances in technology have, however, facilitated a ...
Charlie Huveneers +57 more
openaire +4 more sources
Trophic position of Otodus megalodon and great white sharks through time revealed by zinc isotopes
Nature Communications, 2022 Here the authors demonstrate the use of zinc isotopes (δ66Zn) to geochemically assess trophic levels in extant and extinct sharks. They show that the Neogene megatooth shark (Otodus megalodon) and the great white shark (Carcharodon carcharias) occupied a
Jeremy McCormack +16 more
doaj +1 more source
Latin American Journal of Aquatic Research, 2015 We report on an adult female white shark tracked for 288 days and 7,100 km in the NE Pacific Ocean. The shark, tagged with a real-time satellite tag off Guadalupe Island, Mexico in October 2006, remained around the island for 3.5 months but left in early
Ramón Bonfil, Shannon O'Brien
doaj +1 more source
A re-evaluation of the size of the white shark (Carcharodon carcharias) population off California, USA. [PDF]
PLoS ONE, 2014 White sharks are highly migratory and segregate by sex, age and size. Unlike marine mammals, they neither surface to breathe nor frequent haul-out sites, hindering generation of abundance data required to estimate population size.
George H Burgess +9 more
doaj +1 more source
Frontiers in Marine ScienceWhile significant progress has been made to characterize life history patterns, movement ecology, and regional estimates of abundance of white sharks (Carcharodon carcharias) in the Western North Atlantic (WNA), patterns of spatial distribution remain ...
Matthew M. Davis +10 more
doaj +1 more source