Results 41 to 50 of about 3,337 (198)

Identification and phylogenetic inferences on stocks of sharks affected by the fishing industry off the Northern coast of Brazil [PDF]

, 2009
The ongoing decline in abundance and diversity of shark stocks, primarily due to uncontrolled fishery exploitation, is a worldwide problem. An additional problem for the development of conservation and management programmes is the identification of ...
ROCHA, Tainá Carreira da, RODRIGUES-FILHO, Luis Fernando da Silva, RÊGO, Péricles Sena do, SAMPAIO, Maria Iracilda da Cunha, SCHNEIDER, Horacio, SOUZA, Marcelo Nazareno Vallinoto de   +5 more
core   +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

Rayas y tiburones como fauna acompañante en las pesquerías de camarón: una revisión.

Revista de Investigaciones Marinas, 2023
Se presenta una revisión sobre los elasmobranquios en la pesquería de arrastre de camarón. La fauna acompañante de camarón (FAC) está compuesta por una gran diversidad de especies en la que predominan los peces.
Alejandra Briones Bell-lloch, Consuelo Aguilar Betancourt, Gaspar González Sansón   +2 more
doaj  

Sustainability of elasmobranchs caught as bycatch in a tropical prawn (shrimp) trawl fishery [PDF]

, 2002
The bycatch of Australia’s northern prawn fishery (NPF) comprises 56 elasmobranch species (16 families). The impact of this fishery on the sustainability of these species has not been addressed.
Brewer, David T., Heales, Don S., Miller, Margaret J., Stobutzki, Ilona C.   +3 more
core  

The Unseen Crisis of Sharks and Rays in Senegal

Ecology and Evolution, Volume 16, Issue 4, April 2026.
This study presents a conservative quantitative assessment of shark and ray landings and trade in Senegal, revealing extensive exploitation of threatened species. Surveys at two major artisanal processing sites in the Casamance region recorded over 170,000 individuals, mostly rays, with nearly all biomass comprising species at risk of extinction, and ...
Rima W. Jabado, Luc Badji, Ryan Charles, Christoph A. Rohner   +3 more
wiley   +1 more source

Phage Diving: An Exploration of the Carcharhinid Shark Epidermal Virome

Viruses, 2022
The epidermal microbiome is a critical element of marine organismal immunity, but the epidermal virome of marine organisms remains largely unexplored. The epidermis of sharks represents a unique viromic ecosystem.
Ryan D. Hesse, Michael Roach, Emma N. Kerr, Bhavya Papudeshi, Laís F. O. Lima, Asha Z. Goodman, Lisa Hoopes, Mark Scott, Lauren Meyer, Charlie Huveneers, Elizabeth A. Dinsdale   +10 more
doaj   +1 more source

Incidental catches of pelagic megafauna by the EU pelagic fleet in the Mauritanian exclusive economic zone during the year 2001 : results extracted from the scientific observer program [PDF]

, 2003
The joint project between the Netherlands Institute for Fisheries Research (RIVO) and the Mauritanian Institute for Oceanography and Fisheries Research (IMROP) has been initiated in 1998 in order to strengthen Mauritania’s capacity for research on stocks
Hofstede, R., ter
core   +1 more source

Optimizing a Novel eDNA‐Based Framework for Reef Fish Biodiversity Monitoring Using an Autonomous Filtration System and in situ Nanopore Sequencing

Ecology and Evolution, Volume 16, Issue 3, March 2026.
This study presents a comprehensive eDNA metabarcoding protocol optimized for monitoring fish biodiversity in coral reefs and other remote marine environments. By combining an autonomous underwater filtration system, Oxford Nanopore sequencing, and a 12S reference database specifically developed for French Polynesia, the method enables efficient and ...
Lucie Cartairade, Julie Poulain, Quentin Carradec, Sophie Mangenot, Patrick Wincker, Serge Planes   +5 more
wiley   +1 more source

The repulsive and feeding-deterrent effects of electropositive metals on juvenile sandbar sharks (Carcharhinus plumbeus) [PDF]

, 2009
Reducing shark bycatch and depredation (i.e., damage caused by sharks to gear, bait, and desired fish species) in pelagic longline fisheries targeting tunas and swordfish is a priority. Electropositive metals (i.e., a mixture of the lanthanide elements
Brill, Richard, Bushnell, Peter, Smith, Leonie, Speaks, Coley, Stroud, Eric, Sundaram, Rumya, Wang, John   +6 more
core   +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