Results 51 to 60 of about 3,935 (204)

Miocene Shark and Batoid Fauna from Nosy Makamby (Mahajanga Basin, Northwestern Madagascar) [PDF]

open access: yes, 2015
published_or_final_versio
Ali, JR   +5 more
core   +1 more source

The Unseen Crisis of Sharks and Rays in Senegal

open access: yesEcology and Evolution, Volume 16, Issue 4, April 2026.
This study presents a conservative quantitative assessment of shark and ray landings and trade in Senegal, revealing extensive exploitation of threatened species. Surveys at two major artisanal processing sites in the Casamance region recorded over 170,000 individuals, mostly rays, with nearly all biomass comprising species at risk of extinction, and ...
Rima W. Jabado   +3 more
wiley   +1 more source

The taxonomic value of rostral nodes of extinct sharks, with comments on previous records of the genus Lamna (Lamniformes, Lamnidae) from the Pliocene of Lee Creek Mine, North Carolina (USA) [PDF]

open access: yes, 2012
Shark rostral nodes from the Yorktown Formation (Zanclean, early Pliocene) of Lee Creek Mine, North Carolina (USA), previously assigned to the genus Lamna Cuvier, 1816, have been reinterpreted using a preliminary identification key for extant Lamniformes
Jagt, J.W.M., Mollen, F.H.
core  

The Dynamic Nature of Nearshore Shark Nurseries in the Northern Gulf of Mexico

open access: yesJournal of Biogeography, Volume 53, Issue 4, April 2026.
ABSTRACT Aim Some habitats serve particularly important functions for wildlife. Identifying and appropriately managing these ‘essential habitats’ is critical, especially for wildlife that have faced severe population declines like sharks. Nursery habitats aid in the survival and development of juvenile sharks, which until recently were not formally ...
Philip Matich   +5 more
wiley   +1 more source

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

open access: yesFrontiers 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   +4 more
doaj   +1 more source

Adriatic sea sharks [PDF]

open access: yes, 2011
Morski psi spadaju u razred hrskavičnjača (Selachii, Chondrichthyes). Postoje već 400 milijuna godina i gotovo nepromijenjeni plivaju svjetskim morima, pa tako i Jadranom. Danas u hranidbenom lancu zauzimaju mjesto vodećeg predatora.
Šimunović, Ivana
core   +2 more sources

Genome‐Wide DNA Methylation Patterns Predict Age in the Zebra Shark (Stegostoma tigrinum) and Provide Insight Into the Evolution of Vertebrate Aging

open access: yesMolecular Ecology, Volume 35, Issue 7, April 2026.
ABSTRACT Epigenomic changes are a hallmark of aging, and DNA methylation (DNAm) has emerged as the most reliable molecular marker of an individual's age. Genome‐wide patterns of age‐associated hypo‐ and hypermethylation have been applied to generate predictive models (i.e., “epigenetic clocks”) capable of estimating chronological age in an increasingly
Samantha L. Bock   +25 more
wiley   +1 more source

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

open access: yesJournal 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.

open access: yesPLoS 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   +9 more
doaj   +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

open access: yesRevista 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   +2 more
doaj  

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