Results 51 to 60 of about 70,813 (251)

Development of an environmental DNA assay for detecting multiple shark species involved in human–shark conflicts in Australia

open access: yesEnvironmental DNA, 2021
The number of human–shark interactions has increased worldwide during the past decade resulting in injuries and fatalities. In Australia, the white shark (Carcharodon carcharias), tiger shark (Galeocerdo cuvier), and bull shark (Carcharhinus leucas) are ...
Anthony vanRooyen   +6 more
doaj   +1 more source

Field guide to requiem sharks (Elasmobranchiomorphi: Carcharhinidae) of the Western North Atlantic [PDF]

open access: yes, 2001
Identification problems are common for many sharks due to a general lack of meristic characteristics that are typically useful for separating species. Other than number of vertebrae and number and shape of teeth, identifications are frequently based on ...
Grace, Mark
core  

Great White Shark Vs Hippo

open access: yes, 2023
Curious about who would win in a fight between a great white shark and a hippo? Dive into this article as we compare the characteristics and abilities of these fearsome creatures. Both known for their strength and power, the great white shark and the hippo are formidable opponents.
openaire   +1 more source

A new species of Lonchidiidae (Hybodontiformes) from the Late Jurassic of Brazil (Aliança Formation, Jatobá Basin)

open access: yesThe Anatomical Record, EarlyView.
Abstract The Aliança Formation (Jatobá Basin) represents lacustrine deposits formed in oxygenated waters that hosted a diverse fauna, including Hybodontiform sharks. Within this group, the Family Lonchidiidae comprises 11 valid genera, with Parvodus previously reported in Brazilian deposits from the Brejo Santo Formation (Araripe Basin, Late Jurassic ...
Larissa de Souza Ribeiro   +1 more
wiley   +1 more source

Antibiotic sensitivity of bacteria isolated from the oral cavities of live white sharks (Carcharodon carcharias) in South African waters

open access: yesSouth 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
doaj   +1 more source

Sharks, bony fishes and endodental borings from the Miocene Montpelier Formation (White Limestone Group) of Jamaica [PDF]

open access: yes, 2004
Bulk samples of Miocene carbonate sediments (deep-water chalks and shallow-water-derived calcarenites) from the Montpelier Formation (White Limestone Group) in Duncans Quarry, Jamaica, have yielded a small, but diverse, fauna of disassociated fish ...
Mitchell, S.F., Underwood, Charlie J.
core  

A review of the historic and present ecological role of aquatic and shoreline wood, from forest to deep sea

open access: yesBiological Reviews, EarlyView.
ABSTRACT The ecology of forests, their losses, and terrestrial wood decomposition dynamics have been intensively studied and reviewed. In the aquatic realm, reviews have concentrated on large wood (LW) in rivers and the transition from freshwater to marine environments in the Pacific Northwest of North America. However, a comprehensive global synthesis
Jon Dickson   +9 more
wiley   +1 more source

“Uncertainty remains for white sharks in South Africa, as population stability and redistribution cannot be concluded by Bowlby et al. (2023): “Decline or shifting distribution? a first regional trend assessment for white sharks (Carcharodon carcharias) in South Africa”

open access: yesEcological Indicators
Bowlby et al. (2023) assessed spatio-temporal trends in South Africa’s white shark (Carcharodon carcharias) population using a range of different proxies of white shark occurrence.
Enrico Gennari   +5 more
doaj   +1 more source

Residency, habitat use and sexual segregation of white sharks, Carcharodon carcharias in False Bay, South Africa. [PDF]

open access: yesPLoS ONE, 2013
White sharks (Carcharodon carcharias) are threatened apex predators and identification of their critical habitats and how these are used are essential to ensuring improved local and ultimately global white shark protection.
Alison Kock   +5 more
doaj   +1 more source

Estimates of numbers of White sharks (Carcharodon carcharias) in Eastern and Southern South Africa : a post-moratorium assessment [PDF]

open access: yes, 2004
A moratorium was placed on fishing for white sharks (Carcharodon carcharias) in South Africa in 1991 prior to knowing the population status of this species.
Tress, Mary Elizabeth
core  

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