Results 11 to 20 of about 5,320 (221)

Global conservation status of the jawed vertebrate Tree of Life [PDF]

Nature Communications
Human-driven extinction threatens entire lineages across the Tree of Life. Here we assess the conservation status of jawed vertebrate evolutionary history, using three policy-relevant approaches.
Rikki Gumbs, Oenone Scott, Ryan Bates, Monika Böhm, Félix Forest, Claudia L. Gray, Michael Hoffmann, Daniel Kane, Christopher Low, William D. Pearse, Sebastian Pipins, Benjamin Tapley, Samuel T. Turvey, Walter Jetz, Nisha R. Owen, James Rosindell   +15 more
doaj   +2 more sources

Steroid hormones and chondrichthyan reproduction: physiological functions, scientific research, and implications for conservation [PDF]

PeerJ, 2020
The study of the reproductive aspects of chondrichthyans through the analysis of steroid hormones has been carried out for more than five decades in several species around the world.
Edgar Eduardo Becerril-García, Marcial Arellano-Martínez, Daniela Bernot-Simon, Edgar Mauricio Hoyos-Padilla, Felipe Galván-Magaña, Céline Godard-Codding   +5 more
doaj   +2 more sources

Mineralized Cartilage and Bone-Like Tissues in Chondrichthyans Offer Potential Insights Into the Evolution and Development of Mineralized Tissues in the Vertebrate Endoskeleton

Frontiers in Genetics, 2021
The impregnation of biominerals into the extracellular matrix of living organisms, a process termed biomineralization, gives rise to diverse mineralized (or calcified) tissues in vertebrates.
Oghenevwogaga J. Atake, B. Frank Eames
doaj   +1 more source

Leopard Seals (Hydrurga leptonyx) in New Zealand Waters Predating on Chondrichthyans

Frontiers in Marine Science, 2021
Leopard seals (Hydrurga leptonyx) are top-order predators that prey on a wide variety of species including crustaceans, cephalopods, fishes, birds, and pinnipeds.
Krista van der Linde, Krista van der Linde, Krista van der Linde, Ingrid N. Visser, Ingrid N. Visser, Ingrid N. Visser, Rick Bout, Chris Lalas, Lara Shepherd, David Hocking, David Hocking, Brittany Finucci, Jim Fyfe, Matthew Pinkerton   +13 more
doaj   +1 more source

Early Gnathostome Phylogeny Revisited: Multiple Method Consensus [PDF]

, 2016
This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.A series of recent ...
A Pradel, A Ritchie, A Ritchie, A Ritchie, A Stamatakis, A Warren, AG Kluge, AM Basden, AM Wright, Benedict King, BG Gardiner, C Tuffley, CH Pander, CJ Burrow, CW Cunningham, D Pol, DF Goujet, DF Goujet, DF Goujet, DF Goujet, DF Goujet, DH Rayner, E Jarvik, E Jarvik, E Jarvik, E Jarvik, E Rindal, E Stensiö, EI White, F Ronquist, G Clément, G Clément, GC Young, GC Young, H Botella, H-P Schultze, H-P Schultze, H-P Schultze, H-P Schultze, Hector Escriva, HL Jessen, HL Jessen, J Lu, J Müller, J Nylander, J Pan, J Pan, J Pan, J Rade, JA Long, JA Long, JA Long, JA Moy-Thomas, JA Moy-Thomas, JA Nylander, JE O’Reilly, JG Maisey, JL Thorne, John A. Long, JP Huelsenbeck, JP Huelsenbeck, JS Nelson, JV Rohon, K P'an, K Trinajstic, KM Pickett, L Taverne, LB Halstead, M Friedman, M Holder, M Otto, M Zhu, M Zhu, M Zhu, M Zhu, M Zhu, M Zhu, M Zhu, M Zhu, M Zhu, M Zhu, M Zhu, M Zhu, M Zhu, M-M Chang, M-M Chang, M-M Chang, M-M Chang, M-M Chang, M-M Chang, M-M Zhang, MD Brazeau, MD Brazeau, MD Brazeau, ME Anderson, MI Coates, Min Zhu, MS Lee, MSY Lee, MSY Lee, N-Z Wang, P de Villemereuil, P Janvier, P Janvier, P Janvier, PA Goloboff, PE Ahlberg, Per E. Ahlberg, PH Greenwood, PL Forey, PL Forey, PO Lewis, PO Lewis, Q-M Qu, R Cloutier, R Cloutier, RF Miller, RH Denison, RH Denison, RH Traquair, RJ Asher, RS Miles, RS Miles, RS Miles, RS Miles, RS Miles, S Duchêne, S Giles, S Giles, S Turner, SK Hemmings, SM Andrews, SP Davis, T Qiao, T-S Liu, Tuo Qiao, V Dupret, V Dupret, V Dupret, W Gross, W Gross, W Gross, X Ni, X Xu, X Xu, X-B Yu, Y-H Liu, Y-H Liu, Z Johanson, Z-K Gai   +149 more
core   +21 more sources

Elasmobranch Diversity at Reunion Island (Western Indian Ocean) and Catches by Recreational Fishers and a Shark Control Program

Diversity, 2023
Elasmobranchs are declining worldwide due to overfishing. In developing countries and island states in tropical regions, small-scale and recreational fisheries can significantly impact the dynamics of neritic species.
S. Jaquemet, N. Oury, T. Poirout, J. Gadenne, H. Magalon, A. Gauthier   +5 more
doaj   +1 more source

Decoding the Transcriptome of Sharks, Rays, and Chimaeras: Insights into Their Physiology, Morphology, Evolution, and Biomedical Applications

Fishes, 2023
Chondrichthyes (including sharks, rays, and chimaeras) are a class of jawed cartilaginous fishes (with skeletons composed primarily of cartilage), with major relevance to the marine ecosystems and to humanity.
Manuel J. Seixas, Rodrigo R. Domingues, Agostinho Antunes   +2 more
doaj   +1 more source

Diverse stem-chondrichthyan oral structures and evidence for an independently acquired acanthodid dentition

Royal Society Open Science, 2021
The teeth of sharks famously form a series of transversely organized files with a conveyor-belt replacement that are borne directly on the jaw cartilages, in contrast to the dermal plate-borne dentition of bony fishes that undergoes site-specific ...
Richard P. Dearden, Sam Giles
doaj   +1 more source

An identification key for Chondrichthyes egg cases of the Mediterranean and Black Sea

The European Zoological Journal, 2021
Chondrichthyan egg cases are important elements for species-specific identification and also provide a valuable aid in determining a species spatial distribution, as well as for defining spawning areas.
C. Mancusi, D. Massi, R. Baino, A. Cariani, V. Crobe, D. A. Ebert, A. Ferrari, C. A. Gordon, G. R. Hoff, S. P. Iglesias, A. Titone, F. Serena   +11 more
doaj   +1 more source

Distinct Responses of Elasmobranchs and Ray-Finned Fishes to Long-Term Global Change

Frontiers in Ecology and Evolution, 2020
Both biotic and abiotic factors likely played a role in influencing the diversification patterns of clades. Although the role of environmental forcing on the long-term evolution of biodiversity has been explored for invertebrate clades, little is known ...
Guillaume Guinot, Lionel Cavin
doaj   +1 more source