Results 61 to 70 of about 1,261 (186)

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

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

Stock assessment of whaler and hammerhead sharks (Carcharhinidae and Sphyrnidae) in Queensland [PDF]

, 2015
This stock assessment provides detailed results for the most common sharks encountered by Queensland commercial fishers. These sharks come from the whaler (Carcharhinidae) and hammerhead (Sphyrnidae) families and comprise sharpnose sharks (Rhizoprionodon
Leigh, George M.
core   +4 more sources

Assessment of shark catches landed at PPI Ujung Serangga, Southwest Aceh

Depik Jurnal
This study aimed to assess shark catches at PPI Ujung Serangga, Southwest Aceh, focusing on species composition, size and conservation status. Data were collected through field surveys and direct measurements of sharks landed by fishers.
Nur Zulurrahmi, Ilham Fajri, Ratna Mutia Aprilla, Herman Herman, Rada Febriyanti, Riska Diajeng Putri   +5 more
doaj   +1 more source

Cartilaginous fish diversity in the Western Visayas, Philippines, including two putative unidentified species and the first record of Carcharhinus plumbeus (Elasmobranchii: Carcharhiniformes: Carcharhinidae) [PDF]

Acta Ichthyologica et Piscatoria
This annotated checklist documents the diversity of cartilaginous fishes, including sharks, batoids (rays and skates), and chimaeras, from Panay and Guimaras islands, Western Visayas, Philippines, through surveys at fish markets and ports.
Roxanne Cabebe-Barnuevo, Dianne Frances Penuela, Emmanuel S. Delloro Jr., Ricardo P. Babaran, Hiroyuki Motomura, Maria Celia D. Malay   +5 more
doaj   +3 more sources

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

Descrição anatômica do esqueleto de Isogomphodon oxyrhynchus (Müller & Henle, 1839) e discussão sobre seu posicionamento filogenético dentro de Carcharhinidae (Chondrichthyes, Carcharhiniformes)

, 2021
The Daggernose shark Isogomphodon oxyrhynchus (Müller & Henle, 1839), sole species in its genus, is endemic to northern South America, from Southern Maranhão State in Brazil to Trinidad and Tobago.
Silva, Arthur de Lima Oliveira e
core   +1 more source

Seasonal variations of catch composition of drift nets in Hormozgan waters (Persian Gulf) [PDF]

بوم‌شناسی آبزیان, 2017
The study was conducted to obtain some information about temporal and spatial variations of multifilament drift gillnet catch communities in coastal waters of Hormozgan Province (Persian Gulf) from October to March 2014.
Mohammadreza Alimirzaei, Saeid Gorgin, Ehsan Kamrani, Rasoul Ghorbani   +3 more
doaj  

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

On the Systematics and identity of four pelagic Sharks of the family Carcharhinidae from Indian region [PDF]

, 1974
Four species of pelagic sharks of the family Carcharhinidae belonging to the genera ScoUodon, Loxodon and Rhizoprionodon viz., ScoUodon laticauJus MuUer and Henle, Loxodon macrorhinus MuUer and Henle, Rhizoprionodon (Rhizoprionodon) acutus RuppeJl and
Nair, R V, Appukuttan, K K, Rajapandian, M E   +2 more
core   +1 more source