Results 31 to 40 of about 5,644 (225)

Fishers' interactions with endangered “rhinorays” in Karimunjawa National Park, and factors influencing willingness to engage in pro‐conservation behavior

Conservation Science and Practice
The “rhinorays” (giant guitarfish‐Glaucostegidae and wedgefish‐Rhinidae) are a critically endangered group of “shark‐like rays,” which have experienced steep global population declines in the past decade due to overfishing.
Faqih Akbar Alghozali, Ashma Hanifah, Muhammad Wiralaga Dwi Gustianto, Maula Nadia, Taufiq Qur'rohman, Kinanti Amalia Niloperbowo, Diah P. Suyanto, Muhammad Ichsan, Andhika Prasetyo, Mahardika Rizqi Himawan, Hollie Booth   +10 more
doaj   +1 more source

A Long-Term Overview of Elasmobranch Fisheries in an Oceanic Archipelago: A Case Study of the Madeira Archipelago

Fishes
Elasmobranch species are considered a global conservation priority due to their susceptibility to fishing pressure. In the Madeira Archipelago, Northeastern Atlantic, most elasmobranch species are caught as bycatch in artisanal drifting longline fishery ...
Mafalda Freitas, Filipa Pinho-Duarte, Madalena Gaspar, Pedro Ideia, João Delgado, Sara C. Cerqueira, Ricardo Sousa   +6 more
doaj   +1 more source

Functional anatomy, jaw mechanisms, and feeding behavior of Dunkleosteus terrelli (Placodermi, Arthrodira)

The Anatomical Record, EarlyView.
A new musculoskeletal reconstruction and revision of the cranio‐mandibular anatomy of the Devonian arthrodire placoderm Dunkleosteus terrelli from a comparative and functional anatomical perspective. Dunkleosteus is a specialized arthrodire with many specializations for feeding on large vertebrates, and many of its features are part of broader ...
Russell K. Engelman, Robert K. Carr, Kate Trinajstic, Zerina Johanson, Oleg A. Lebedev   +4 more
wiley   +1 more source

Regional hotspots and drivers of shark meat consumption in India

Conservation Science and Practice
Over one third of shark and ray (henceforth elasmobranch) species are threatened by global extinction. Overfishing, driven largely by human consumption of various products is a key threat to >95% of threatened elasmobranch species.
Divya Karnad, S. Narayani, Shruthi Kottillil, Sudha Kottillil, Trisha Gupta, Alissa Barnes, Andrew Dias, Y. Chaitanya Krishna   +7 more
doaj   +1 more source

Elasmobranch spatial segregation in the western Mediterranean

Scientia Marina, 2011
Basic information on the distribution and habitat preferences of ecologically important species is essential for their management and protection. This study focuses on the depth related trends and the geographic patterns that shape the community of the ...
Adam Gouraguine, Manuel Hidalgo, Joan Moranta, David M. Bailey, Francesc Ordines, Beatriz Guijarro, María Valls, Carmen Barberá, Aina De Mesa   +8 more
doaj   +1 more source

Seeing through sedimented waters: environmental DNA reduces the phantom diversity of sharks and rays in turbid marine habitats

BMC Ecology and Evolution, 2021
Background Sharks and rays are some of the most threatened marine taxa due to the high levels of bycatch and significant demand for meat and fin-related products in many Asian communities.
Yin Cheong Aden Ip, Jia Jin Marc Chang, Kelvin K. P. Lim, Zeehan Jaafar, Benjamin J. Wainwright, Danwei Huang   +5 more
doaj   +1 more source

Dental crown morphological variation and heterodonty in carcharhiniform sharks

The Anatomical Record, EarlyView.
Abstract Elasmobranch teeth are highly mineralized structures that constitute the majority of the fossil record for this group. Despite their taxonomic and evolutionary significance, detailed descriptions of dental morphology remain scarce. The order Carcharhiniformes, the most diverse among sharks, comprises 304 valid species that display remarkable ...
Flávia Zanini, Karla D. A. Soares
wiley   +1 more source

Beyond mammals: the evolution of chewing and other forms of oropharyngeal food processing in vertebrates

Biological Reviews, EarlyView.
ABSTRACT Oropharyngeal food processing exhibits a remarkable diversity among vertebrates, reflecting the evolution of specialised ‘processing centres’ associated with the mandibular, hyoid, and branchial arches. Although studies have detailed various food‐processing strategies and mechanisms across vertebrates, a coherent and comprehensive terminology ...
Daniel Schwarz, Maja Mielke, Stephan Handschuh, Anthony Herrel, Patrick Lemell, Léa Da Cunha, Nicolai Konow   +6 more
wiley   +1 more source

Metacestodes of Elasmobranch Tapeworms in Octopus vulgaris (Mollusca, Cephalopoda) from Central Mediterranean—SEM and Molecular Data

Animals, 2020
Cephalopods are intermediate/paratenic hosts in the life cycle of elasmobranch tapeworms, nevertheless most records of infection in this group of mollusks are outdated and fragmentary. The present work aimed to investigate the cestode fauna of the common
Perla Tedesco, Monica Caffara, Andrea Gustinelli, Graziano Fiorito, Maria Letizia Fioravanti   +4 more
doaj   +1 more source

Organic and Inorganic Pollutants, Oxidative Stress Biomarkers, and Electrophoretic Protein Profiles in an Endangered Thresher Shark (Alopias vulpinus) From Southeastern Brazil: A Case Study

Environmental Toxicology, EarlyView.
ABSTRACT A comprehensive screening of different environmental contaminants (total metals, thermostable metal fractions associated with detoxification, and persistent organic pollutants) was conducted in an endangered common thresher shark (Alopias vulpinus ) individual incidentally captured in southeastern Brazil.
Sidney Fernandes Sales Junior, Amanda Pontes Lopes, Heloíse Martins de Souza, Regina Fonseca, Enrico Mendes Saggioro, Francielli Monteiro Casanova, Kamila Cezar Gramlich, Tatiana Dillenburg Saint'Pierre, Carlos German Massone, Renato Carreira, Rachel Ann Hauser‐Davis   +10 more
wiley   +1 more source