Results 201 to 210 of about 70,813 (251)

Variability of environmental, contextual and individual factors in human-shark interactions in New Caledonia, 1980-2022, with some comparisons to Reunion Island. [PDF]

Sci Rep
Taglioni F, Guiltat S, Delsaut M, Tirard P, Payet D.   +4 more
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Expanded niche for white sharks

Nature, 2002
Until the advent of electronic tagging technology, the inherent difficulty of studying swift and powerful marine animals made ecological information about sharks of the family Lamnidae difficult to obtain. Here we report the tracking of movements of white sharks by using pop-up satellite archival tags, which reveal that their migratory movements, depth
Andre M, Boustany, Scott F, Davis, Peter, Pyle, Scot D, Anderson, Burney J, Le Boeuf, Barbara A, Block   +5 more
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Whale shark on a white shark’s menu

Marine Biodiversity, 2015
As the world’s largest fish, whale sharks Rhincodon typus could be assumed to be predator-free. Juvenile whale sharks are known to be preyed upon by sharks, marlin and orcas, and, although unconfirmed, bite marks on a sub-adult whale shark were attributed to white sharks Carcharodon carcharias (Department of the Environment and Heritage, DEH 2005 ...
G. I. Moore, M. G. Newbrey
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Dental ontogeny of a white shark embryo

Journal of Morphology, 2016
ABSTRACTUnlike most viviparous vertebrates, lamniform sharks develop functional teeth during early gestation. This feature is considered to be related to their unique reproductive mode where the embryo grows to a large size via feeding on nutritive eggs in utero. However, the developmental process of embryonic teeth is largely uninvestigated.
Taketeru, Tomita, Kei, Miyamoto, Akira, Kawaguchi, Minoru, Toda, Shin-Ichiro, Oka, Ryo, Nozu, Keiichi, Sato   +6 more
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Mode of uterine milk secretion in the white shark

The Anatomical Record, 2022
AbstractExamination of the uterus of a dead female white shark (Carcharodon carcharias), which contained the earliest known white shark embryos, revealed that the uterine wall produces lipid‐rich secretion (histotroph or “uterine milk”) for embryonic nutrition.
Taketeru Tomita, Masaru Nakamura, Ryo Nozu, Nobuhiro Ogawa, Minoru Toda, Keiichi Sato   +5 more
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Counterillumination reduces bites by Great White sharks

Current Biology
In the open ocean, achieving camouflage is complicated by the fact that the downwelling light is generally much brighter than the upwelling light, which means that any object, even if its ventral surface is white due to countershading, will appear as a dark silhouette when viewed from below.1,2,3 To overcome this, many marine species employ ...
Laura A. Ryan, Enrico Gennari, David J. Slip, Shaun P. Collin, Victor M. Peddemors, Charlie Huveneers, Lucille Chapuis, Jan M. Hemmi, Nathan S. Hart   +8 more
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Iconic species: great white sharks, basking sharks and whale sharks

2014
Sharks are a group of fishes that have captivated human attention throughout history. They comprise more than 400 species that have evolved for over 400 million years, making them one of the oldest living vertebrate groups (Compagno et al., 2004). Over their long evolutionary history, sharks have diversified to become essential components of almost ...
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Effect of fear and representations of great white sharks on great white shark conservation behavior

Great white sharks are listed as a vulnerable species under the International Union for Conservation of Nature (IUCN) red list. This study uses the theory of planned behavior (TPB) to test how different factors such as attitudes, subjective norms, perceived behavioral control along with representations and fear of great white sharks affect great white ...
Montgomery, Emily, Tham, Samuel M., Champ, Joseph, Aubry, Lise M.   +3 more
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Mechanics of biting in great white and sandtiger sharks

Journal of Biomechanics, 2011
Although a strong correlation between jaw mechanics and prey selection has been demonstrated in bony fishes (Osteichthyes), how jaw mechanics influence feeding performance in cartilaginous fishes (Chondrichthyes) remains unknown. Hence, tooth shape has been regarded as a primary predictor of feeding behavior in sharks.
Ferrara, T. L., Clausen, P., Huber, D. R., McHenry, C. R., Peddemors, V., Wroe, S.   +5 more
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Size of the Great White Shark ( Carcharodon )

Science, 1973
The maximum length of 36.5 feet (11.1 meters) attributed to the white shark ( Carcharodon carcharias ) by Günther and others is a mistake. Examination of the jaws and teeth of the specimen referred to by Günther and comparison with the jaws of white sharks of known length revealed a length of about 17 feet (∼5 ...
openaire   +2 more sources