Results 31 to 40 of about 5,320 (221)

Integrating Literature, Biodiversity Databases, and Citizen-Science to Reconstruct the Checklist of Chondrichthyans in Cyprus (Eastern Mediterranean Sea)

Fishes, 2021
Chondrichthyans are apex predators influencing the trophic web through a top-down process thus their depletion will affect the remaining biota. Notwithstanding that, research on chondrichthyans is sparse or data-limited in several biogeographic areas ...
Ioannis Giovos, Fabrizio Serena, Dimitra Katsada, Athanasios Anastasiadis, Adi Barash, Charis Charilaou, Jason M. Hall-Spencer, Fabio Crocetta, Alexander Kaminas, Demetris Kletou, Mary Maximiadi, Vasileios Minasidis, Dimitrios K. Moutopoulos, Roxani Naasan Aga-Spyridopoulou, Ioannis Thasitis, Periklis Kleitou   +15 more
doaj   +1 more source

Foliculogénesis Ovárica en la Raya Marmorada, Sympterygia bonapartii (Müller & Henle, 1841) (Chondrichthyes, Rajidae) [PDF]

, 2011
Los Condrictios se han convertido en un recurso económico importante en las últimas décadas, siendo Argentina uno de los países que más explota tiburones y rayas, incluso a niveles que exceden los límites de varias especies.
Díaz Andrade, María Constanza, Estecondo, Silvia, Galíndez, Elena Juana, Lopez Cazorla, Andrea Cecilia   +3 more
core   +1 more source

Filling the Gap and Improving Conservation: How IUCN Red Lists and Historical Scientific Data Can Shed More Light on Threatened Sharks in the Italian Seas

Diversity, 2020
Chondrichthyans are one of the most threatened marine taxa worldwide. This is also the case in the Mediterranean Sea, which is considered an extinction hotspot for rays and sharks.
Francesco Luigi Leonetti, Emilio Sperone, Andrea Travaglini, Angelo R. Mojetta, Marco Signore, Peter N. Psomadakis, Thaya M. Dinkel, Massimiliano Bottaro   +7 more
doaj   +1 more source

First report of four deep-sea chondrichthyans (Elasmobranchii and Holocephali) from Andaman waters, India with an updated checklist from the region [PDF]

Acta Ichthyologica et Piscatoria, 2018
This paper confirms the new distributional records of four rare deep-water chondrichthyans viz. sharpnose sevengill shark, Heptranchias perlo (Bonnaterre, 1788); bluntnose sixgill shark, Hexanchus griseus (Bonnaterre, 1788); bramble shark, Echinorhinus ...
R.R. Kumar, S. Venu, K.V. Akhilesh, K.K. Bineesh, P.T. Rajan   +4 more
doaj   +3 more sources

Imaging With the Past: Revealing the Complexity of Chimaeroid Pelvic Musculature Anatomy and Development

Frontiers in Ecology and Evolution, 2022
Chondrichthyans are now widely adopted as models for examining the development and evolution of the stem gnathostome body plan. The fins of some cartilaginous fish are recognized for their plesiomorphic form and mode of muscular development, i.e ...
Jacob B. Pears, Jacob B. Pears, Carley Tillett, Rui Tahara, Hans C. E. Larsson, Catherine A. Boisvert, Catherine A. Boisvert   +6 more
doaj   +1 more source

High post-capture survival for sharks, rays and chimaeras discarded in the main shark fishery of Australia? [PDF]

PLoS ONE, 2012
Most sharks, rays and chimaeras (chondrichthyans) taken in commercial fisheries are discarded (i.e. returned to the ocean either dead or alive). Quantifying the post-capture survival (PCS) of discarded species is therefore essential for the improved ...
Matias Braccini, Jay Van Rijn, Lorenz Frick   +2 more
doaj   +1 more source

Reproductive biology of the eyespot skate atlantoraja cyclophora (Elasmobranchii: Arhynchobatidae) an endemic species of the southwestern atlantic ocean (34ºs - 42ºS) [PDF]

, 2018
Atlantoraja cyclophora is an endemic skate to the continental shelf of the Southwestern Atlantic Ocean (22ºS-47ºS) and a bycatch species in commercial bottom trawl fisheries. The morphometric relationships, the size at maturity and the reproductive cycle
Colonello, Jorge Horacio, Galíndez, Elena Juana, Macchi, Gustavo Javier, Wehitt, Anahi   +3 more
core   +3 more sources

Spatial distribution of the demersal chondrichthyan community from the western Mediterranean trawl bycatch

Frontiers in Marine Science, 2023
IntroductionChondrichthyans (sharks, batoids and chimaeras) play key roles in the regulation of marine food webs dynamics. However, more than half of the assessed species in the Mediterranean are threatened, primarily by fishing pressure and compounded ...
David Ruiz-García, Juan A. Raga, David March, David March, Ana I. Colmenero, Federico Quattrocchi, Joan B. Company, Laura Recasens, Claudio Barría   +8 more
doaj   +1 more source

Temporal dynamics of demersal chondrichthyan species in the central western Mediterranean

Frontiers in Marine Science, 2015
The rapid expansion of fisheries and globalized trade are emerging as the principal drivers of coastal and ocean threat. Considering the important role of Chondrichthyes as predators at the top of food chain in marine ecosystems, knowledge on their ...
Antonello Mulas
doaj   +1 more source

Contemporary Ichthyological and Fisheries Research of Deepwater Fish: New Advances, Current Challenges, and Future Developments

Journal of Marine Science and Engineering, 2022
Deepwater fishes are a very diverse group of chondrichthyans and teleosts widely distributed in the world ocean from the Arctic to the Antarctic and inhabiting the water column and seabed of continental slopes, seamounts, and high seas usually at depths ...
Alexei M. Orlov
doaj   +1 more source