Results 51 to 60 of about 3,346 (204)

Descriptive and spatial analysis of bycatch in tuna purse-seine fishery in the colombian Pacific Ocean, with an elasmobranch approach

Ocean and Coastal Research
Bycatch species are as important as target species in the challenge of comprehensive fishery management. This is especially the case for vulnerable species such as elasmobranchs in offshore areas of the Colombian Pacific Ocean (CPO), for which ...
Vladimir Puentes, Dalia C. Barragán-Barrera, Karina Bohrer Do Amaral, Fabian D. Escobar, Luis A. Zapata, Emiliano Zambrano, Carlos G. Barreto, José Tavera, Carlos J. Polo, Jairo Altama, Angelica S. Moreno, Iván F. Benavides   +11 more
doaj   +1 more source

Taxonomic reports of Otobothrioidea (Eucestoda, Trypanorhyncha) from elasmobranch fishes of the southern coast off Brazil

Memorias do Instituto Oswaldo Cruz, 2004
Specimens of elasmobranch fishes, captured in the states of Paraná and Santa Catarina, of the southern coast off Brazil, represented by three families, four genera, and four species, were parasitized with otobothrioid trypanorhynch cestodes: Heptranchias
Marcelo Knoff, Sérgio Carmona de São Clemente, Roberto Magalhães Pinto, Reinalda Marisa Lanfredi, Delir Corrêa Gomes   +4 more
doaj   +1 more source

Evolution and ecology of feeding in elasmobranchs [PDF]

Integrative and Comparative Biology, 2007
Paleozoic chondrichthyans had a large gape, numerous spike-like teeth, limited cranial kinesis, and a non-suspensory hyoid, suggesting a feeding mechanism dominated by bite and ram. Modern sharks are characterized by a mobile upper jaw braced by a suspensory hyoid arch that is highly kinetic.
Cheryl D, Wilga, Philip J, Motta, Christopher P, Sanford   +2 more
openaire   +2 more sources

Trace Element Contamination in Top Predatory Elasmobranchs From the Southern Black Sea: Implications for Ecosystem Health and Risk Assessment

Environmental Toxicology, EarlyView.
ABSTRACT Environmental pollution resulting from the rapid increase in human population, urbanization, intensive use of chemicals in agriculture, and industrial development has reached a level that threatens natural life today. Trace elements are one of the most important factors causing significant levels of pollution in the environment and are added ...
Levent Bat, Süleyman Özdemir, Zekiye Birinci Özdemir, Ayşah Öztekin   +3 more
wiley   +1 more source

When is the bait worth the risk? A mechanistic model of a compensatory ecological trap in seabirds

Functional Ecology, EarlyView.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Ecological traps occur when organisms preferentially select habitats that reduce fitness. In seabird–fishery systems, fishery‐derived trophic subsidies can increase foraging success, reinforce habitat preference and indirectly enhance reproductive output or recruitment,
Cristóbal Anguita, Alejandro Simeone, Cristián F. Estades   +2 more
wiley   +1 more source

Olfactory morphology and physiology of elasmobranchs [PDF]

Journal of Experimental Biology, 2010
SUMMARYElasmobranch fishes are thought to possess greater olfactory sensitivities than teleost fishes due in part to the large amount of epithelial surface area that comprises their olfactory organs; however, direct evidence correlating the size of the olfactory organ to olfactory sensitivity is lacking. This study examined the olfactory morphology and
Tricia L, Meredith, Stephen M, Kajiura
openaire   +2 more sources

Maximizing eDNA detections of rare marine organisms: A case study of a delphinid species

Methods in Ecology and Evolution, EarlyView.
Abstract Environmental DNA (eDNA) is an emerging tool for surveying marine organisms. Advances in molecular assay designs and bioinformatic methods provide new opportunities for detecting rare species; however, overcoming methodological challenges of rare species detection remains an important obstacle for the widespread deployment of eDNA methods for ...
Nastassia V. Patin, Eiren K. Jacobson, Zachary Gold, Amy M. Van Cise, Julie Dinasquet, Bryce Ellman, Robert H. Lampe, Anne Schulberg, Noelle Bowlin, Ryan Freedman, Erin Satterthwaite, Andrew E. Allen, Brice X. Semmens   +12 more
wiley   +1 more source

Elasmobranchs small-scale fishery in Guatemala: Socioeconomic aspects and value chain structure

Social Sciences and Humanities Open
Small-scale fishing (SSF) stands as a cornerstone of economic activity along Guatemala's coastlines. Fisheries products, including those derived from elasmobranchs, serve as vital sources of income for fishers and dealers.
María de los Angeles Rosales-Melgar, Omar Santana-Morales, Marian Rodríguez-Fuentes, José Alberto Zepeda-Domínguez, Juan Carlos Pérez-Jiménez, Elisa Areano-Barillas   +5 more
doaj   +1 more source

Integrating migratory connectivity data into the conservation of Australian sharks and rays

Conservation Biology, EarlyView.
Abstract Understanding migratory connectivity is important for conserving highly mobile marine species facing escalating threats. Establishing baseline information on migratory connectivity is necessary for identifying species and regions requiring transboundary cooperation for their conservation.
Diego F. Bezerra, Lily K. Bentley, Ross G. Dwyer, Dina Nisthar, Anthony J. Richardson, Colin A. Simpfendorfer, Michelle R. Heupel, Christoph A. Rohner, Simon J. Pierce, Daniel C. Dunn   +9 more
wiley   +1 more source

To release or not to release? Understanding sawfish release behavior in a global south complex fishery

Conservation Science and Practice, EarlyView.
This demonstrates the gap between existing top‐down laws and strategies (Current Approach) and the barriers fishers face while proposing an alternative pathway (Proposed Approach) based on collaboration, capacity building, and addressing socio‐economic factors.
Shashowti Chowdhury Riya, Alifa Bintha Haque, Nidhi G. D'Costa, Gawsia Wahidunnessa Chowdhury, Francoise Cabada‐Blanco   +4 more
wiley   +1 more source