Results 61 to 70 of about 1,071 (190)

The Neocolonial Tightening of CITES: How Northern Narratives Marginalize Southern Conservation

Conservation Letters, Volume 19, Issue 2, March/April 2026.
ABSTRACT CITES has demonstrated a persistent trend of regulatory tightening over five decades, raising critical questions about both equity and effectiveness in global conservation governance. This study examines how structural power imbalances and dominant Northern narratives within the Convention have systematically marginalized pluralistic ...
Youmin Lian, Md. Ziaul Islam
wiley   +1 more source

Volitional Swimming Kinematics of Blacktip Sharks, Carcharhinus limbatus, in the Wild

Drones, 2020
Recent work showed that two species of hammerhead sharks operated as a double oscillating system, where frequency and amplitude differed in the anterior and posterior parts of the body. We hypothesized that a double oscillating system would be present in
Marianne E. Porter, Braden T. Ruddy, Stephen M. Kajiura   +2 more
doaj   +1 more source

FIGURE 11 in A redescription of Carcharhinus dussumieri and C. sealei, with resurrection of C. coatesi and C. tjutjot as valid species (Chondrichthyes: Carcharhinidae) [PDF]

, 2012
FIGURE 11. Lateral view of Carcharhinus tjutjot: A. lectotype RMNH 7382 (subadult male 585 mm TL), preserved; B. CSIRO H 7293–07 (subadult male 712 mm TL), fresh.Published as part of White, William T., 2012, A redescription of Carcharhinus dussumieri and
White, William T.
core   +1 more source

Dental Morphology, Palaeoecology and Palaeobiogeographic Significance of a New Species of Requiem Shark (Genus Carcharhinus) from the Lower Miocene of Peru (East Pisco Basin, Chilcatay Formation)

Journal of Marine Science and Engineering, 2022
Nowadays, the requiem sharks comprise one of the most diverse and widespread families of selachians, i.e., Carcharhinidae. Among the carcharhinids, the genus Carcharhinus has the largest number of living species, namely, at least 35.
Alberto Collareta, René Kindlimann, Alessio Baglioni, Walter Landini, Giovanni Sarti, Alí Altamirano, Mario Urbina, Giovanni Bianucci   +7 more
doaj   +1 more source

Morphology and paleoecology of a hybodontiform with serrated teeth, Priohybodus arambourgi, from the Late Jurassic of northeastern Brazil

The Anatomical Record, Volume 309, Issue 1, Page 5-32, January 2026.
Abstract Hybodontiformes was a diverse, successful, and important group of shark‐like chondrichthyans known from a variety of ecosystems. Some representatives of the order had a wide palaeogeographic distribution, as is the case with Priohybodus arambourgi. With a multicuspidate crown, P. arambourgi was the first hybodontiform to develop fully serrated
Estevan Eltink, Kelly Roberta da Silva, Marco Aurélio Gallo de França, Débora Melo Ferrer de Morais, Matías Soto, Christopher J. Duffin   +5 more
wiley   +1 more source

Validating the occurrence of Caribbean reef sharks, Carcharhinus perezi (Poey), (Chondrichthyes: Carcharhiniformes) in the northern Gulf of Mexico, with a key for sharks of the family Carcharhinidae inhabiting the region [PDF]

, 2011
Driggers Iii, William B., Hoffmayer, Eric R., Hickerson, Emma L., Martin, Timothy L., Gledhill, Christopher T. (2011): Validating the occurrence of Caribbean reef sharks, Carcharhinus perezi (Poey), (Chondrichthyes: Carcharhiniformes) in the northern ...
Martin, Timothy L., Hickerson, Emma L., Gledhill, Christopher T., Driggers Iii, William B., Hoffmayer, Eric R.   +4 more
core   +1 more source

Hunting tactics of the lemon shark, Negaprion brevirostris, in shallow waters of an oceanic insular area in the western equatorial Atlantic

Neotropical Ichthyology, 2017
The hunting tactics of lemon sharks, Negaprion brevirostris, are described from underwater and cliff-top observations in the Fernando de Noronha Archipelago, western equatorial Atlantic, Brazil.
Ricardo C. Garla, Otto B. F. Gadig, José Garcia Junior, Leonardo B. Veras, Domingos Garrone-Neto   +4 more
doaj   +1 more source

Defining ecological roles of sharks on coral reefs

Biological Reviews, Volume 100, Issue 6, Page 2707-2725, December 2025.
ABSTRACT Sharks have often been perceived to play a critical role in the dynamics of coral reef ecosystems globally. Yet, there is relatively little evidence to support this idea across all but a limited set of species and contexts. Research on the roles and importance of reef sharks has been complicated by logistical challenges in collecting data on ...
Natalie V. Klinard, Christopher G. Mull, Michael R. Heithaus, M. Aaron MacNeil   +3 more
wiley   +1 more source

Average abundance (MaxN) and biomass of predator families sampled during stereo-BRUV deployments within the lagoon, north and south of Middleton Reef. [PDF]

, 2022
Three outliers were removed from this plot to improve clarity: A MaxN of 33 individuals for Lutjanidae and individuals of 1000 kg and 1147 kg for Carcharhinidae.
Joel Williams (6470594), Kristy Brown (3174363), Neville Barrett (652383), Jacquomo Monk (325755), David Harasti (351023), Andrew Carroll (760935)   +5 more
core   +1 more source

Insights Into the Ecomorphology of the Blue Shark (Prionace glauca) in the Adriatic Sea (Central Mediterranean Sea)

Ecology and Evolution, Volume 15, Issue 11, November 2025.
This study examines how the morphology of Mediterranean blue sharks (Prionace glauca ) changes throughout their development. Using linear and geometric morphometrics, it reveals that juveniles and adults differ in fin and head shape, reflecting adaptations to different ecological and swimming demands.
P. Carbonara, A. Bellodi, M. Bottaro, G. Deplano, A. Mulas, C. Neglia, S. Niedermüller, G. Prato, L. Toomey, M. C. Follesa   +9 more
wiley   +1 more source