Results 51 to 60 of about 1,562 (195)

A Review of the Paleobiology of Some Neogene Sharks and the Fossil Records of Extant Shark Species

Diversity
In recent years, new findings and new methods (stable isotopes of oxygen, zinc, and nitrogen; 2D and 3D modeling; and geometric morphometric analyses of the teeth) have enhanced our knowledge of the Neogene shark fauna and its paleobiology.
Olaf Höltke, Erin E. Maxwell, Michael W. Rasser   +2 more
doaj   +1 more source

Unravelling the skin of the nurse shark: A morphological description of the placoid scales of Ginglymostoma cirratum

Journal of Fish Biology, EarlyView.
Abstract Ginglymostoma cirratum, commonly known as the nurse shark, is a nocturnally active benthic shark, often found in western and eastern Atlantic waters. Although this shark has been well explored in many biological aspects, few studies have thoroughly examined the morphology of its dermal denticles (or placoid scales).
Danilo P. Lima, Aline. N. Poscai, Laura F. Mianutti, Nathalie. M. R. de Abreu, Jade Medeiros, Marcus V. G. Araújo, Frederico. B. de Sousa, João Paulo C. B. da Silva   +7 more
wiley   +1 more source

Pokušaji lociranja i uzorkovanja velike bijele psine, Carcharodon carcharias (Lamniformes: Lamnidae), uz talijansku obalu u Sredozemnom moru

, 2023
Described in the present report are documented attempts to tag and sample the white shark, Carcharodon carcharias (Linnaeus, 1758), along Italian coasts in the Mediterranean Sea, which took place near the Lampedusa Island in the lower Tyrrhenian Channel ...
Tinti, Fausto, Francesca Romana Reinero, Primo Micarelli, Vailati, Matteo, Letizia Marsili, Micarelli, Primo, Vittorini, Enrico, Enrico Vittorini, Luca Monteleone, Emilio Sperone, Reinero, Francesca Romana, Vernelli, Enrico, Fausto Tinti, Monteleone, Luca, Marsili, Letizia, Andrea Marsella, Matteo Vailati, Sperone, Emilio, Marsella, Andrea, Enrico Vernelli   +19 more
core   +1 more source

Assessing White Shark (Carcharodon carcharias) Behavior Along Coastal Beaches for Conservation-Focused Shark Mitigation

Frontiers in Marine Science, 2020
Many large coastal sharks are vulnerable to population declines, however, conflict with human activities often results in unselective culls. Successfully and non-destructively, addressing human-wildlife conflicts requires understanding of animal behavior.
Andrew P. Colefax, Brendan P. Kelaher, Daniel E. Pagendam, Paul A. Butcher, Paul A. Butcher   +4 more
doaj   +1 more source

Lively Transgressions at the Urban–Ocean Edge: Conflict, Coexistence and Animals on the Move

Transactions of the Institute of British Geographers, Volume 51, Issue 2, June 2026.
Short Abstract The paper intervenes in recent debates on human–wildlife conflict and ‘Species on the Move’, drawing on cases of urban gulls in Northern Europe and sharks at Australian city beaches. The paper interrogates: representations of conflict and the interplay between media and policy; the relationship between mobility and the articulation of ...
Leah Gibbs, Helen F. Wilson
wiley   +1 more source

When Citizen Science Becomes Speculation: Evaluating the Reliability of Lamnid Shark Identification from Photographic Records in the Mediterranean

Journal of Marine Science and Engineering
Reports of great white sharks (Carcharodon carcharias) in the Mediterranean Sea attract strong scientific and public attention but are frequently based on limited or unverified evidence. This study evaluates the reliability of citizen-science imagery for
Alen Soldo
doaj   +1 more source

Not all electric shark deterrents are made equal: Effects of a commercial electric anklet deterrent on white shark behaviour.

PLoS ONE, 2019
Personal shark deterrents offer the potential of a non-lethal solution to protect individuals from negative interactions with sharks, but the claims of effectiveness of most deterrents are based on theory rather than robust testing of the devices ...
Channing A Egeberg, Ryan M Kempster, Nathan S Hart, Laura Ryan, Lucille Chapuis, Caroline C Kerr, Carl Schmidt, Enrico Gennari, Kara E Yopak, Shaun P Collin   +9 more
doaj   +1 more source

Brain Morphology and Quantitative Assessment of Sensory Brain Areas in Southern Bluefin Tuna, Thunnus maccoyii (Scombridae, Teleostei)

Journal of Comparative Neurology, Volume 534, Issue 4, April 2026.
The absolute and relative volume of major sensory and integrative brain regions of the southern bluefin tuna Thunnus maccoyii are examined using magnetic resonance imaging (MRI). A dominant cerebellum projects into the midbrain ventricular space, while the optic tectum represents a smaller proportion of total brain volume than previously estimated ...
Myoung Hoon Ha, Lucille Chapuis, Rebecca Glarin, Bradford Moffat, David K. Wright, Travis L. Dutka, Julian Pepperell, Caroline C. Kerr, Kara E. Yopak, Shaun P. Collin   +9 more
wiley   +1 more source

A new record of a great white shark, Carcharodon carcharias(Chondrichthyes: Lamnidae) in the Strait of Sicily, Central Mediterranean Sea [PDF]

, 2020
In November 2015 an immature male individual of great white shark, Carcharodon carcharias (Linnaeus 1758), was caught as by-catch by a bottom trawler in the Strait of Sicily, in the Central Mediterranean Sea.
Falsone, Fabio, Serena, Fabrizio, Di Maio, Federico, Vitale, Sergio, Geraci, Michele Luca, Zava, Bruno, Colloca, Francesco, Scannella, Danilo   +7 more
core   +1 more source

First Paleogene selachifauna of the middle American-Caribbean Antillean region, La Mesa de Copoya, west-central Chiapas, Mexico—systematics and paleontological significance

Revista Mexicana de Ciencias Geológicas, 2018
La Mesa Central de Copoya, Selachifauna, middle Eocene San Juan Formation, the Tuxtla Gutiérrez-Chiapas de Corzo-Suchiapa area, west-central Chiapas, southeastern Mexico, consists of these taxa: Nebrius sp., Strilatolamnia macrota, Carcharias sp ...
Ismael Ferrusquia-Villafranca, Shelton P. Applegate, Luis Espinosa-Arrubarrena   +2 more
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