Results 11 to 20 of about 99,750 (176)

Stereo videography reveals fragility in a high value thresher shark population [PDF]

Frontiers in Marine Science
Population risk assessments are important tools for understanding the sustainability of shark populations and informing their conservation. In the Philippines, policy makers have made inroads to progress legislative protection for sharks in recent years,
Simon P Oliver
exaly   +4 more sources

Exploring practical conservation measures for pelagic thresher sharks using local knowledge in Sunda Banda seascape [PDF]

Frontiers in Ocean Sustainability
The pelagic thresher shark (Alopias pelagicus) is an evolutionarily distinct and globally endangered species, with population declines primarily attributed to targeted fishing and bycatch in both small-scale and industrial fisheries. As the world's largest shark fishing nation, Indonesia is a global priority for pelagic thresher shark conservation ...
Hollie L. Booth
exaly   +4 more sources

Habitat use and diel vertical migration of bigeye thresher shark: Overlap with pelagic longline fishing gear [PDF]

Marine Environmental Research, 2015
Pelagic longliners targeting swordfish and tunas in oceanic waters regularly capture sharks as bycatch, including currently protected species as the bigeye thresher, Alopias superciliosus. Fifteen bigeye threshers were tagged with pop-up satellite archival tags (PSATs) in 2012-2014 in the tropical northeast Atlantic, with successful transmissions ...
Coelho, Rui, Fernandez-Carvalho, Joana, Santos, Miguel N.   +2 more
openaire   +5 more sources

Parasite community of the pelagic thresher Alopias pelagicus (Lamniformes) as additional indicator of trophic network status and functioning [PDF]

Scientific Reports
The majority of marine parasites are trophically transmitted, exhibiting a complex life cycle, thus, parasite communities investigation is a valuable source of information on trophic network status.
Mario Santoro, Flavia Occhibove, Luigi Maria Cusano, Marialetizia Palomba, Bernald Pacheco-Chaves, José Miguel Carvajal-Rodríguez, Monica Monge-Amador, Alicia Rojas, Alberto Solano-Barquero   +8 more
doaj   +2 more sources

The denticle surface of thresher shark tails: Three-dimensional structure and comparison to other pelagic species

Journal of Morphology, 2020
AbstractShark skin denticles (scales) are diverse in morphology both among species and across the body of single individuals, although the function of this diversity is poorly understood. The extremely elongate and highly flexible tail of thresher sharks provides an opportunity to characterize gradients in denticle surface characteristics along the ...
Connor F White, Diego Bernal, Meagan Popp   +2 more
exaly   +4 more sources

Predictions of southern migration timing in coastal sharks under future ocean warming. [PDF]

Conserv Biol
Abstract Projected redistribution of marine species due to ocean warming may undermine current conservation efforts. Yet, there have been few studies on how ocean warming may alter migration timing. Across 5 years of acoustic telemetry data (2018–2022), we determined environmental drivers of southward migration timing for 6 migratory shark species from
Manz MH, Shipley ON, Cerrato RM, Hueter RE, Newton AL, Tyminski JP, Franks BR, Curtis TH, Fischer C, Zacharias JP, Scott C, Dunton KJ, Kneebone J, Peterson BJ, Scannell BJ, Dodd JF, Frisk MG.   +16 more
europepmc   +2 more sources

Growth estimates of pelagic thresher shark (Alopias pelagicus Nakamura, 1935) in the Indian Ocean Southern Java waters

IOP Conference Series: Earth and Environmental Science, 2021
Abstract Alopias pelagicus were highly migratory species, oceanic and almost always found in tropical and temperate seas. This species was particularly vulnerable to exploitation of both targets and side catches. Research was conducted in May 2015 to November 2016 at the landing site of the Cilacap Fishing Port.
U Chodrijah, P Lestari, null Prihatiningsih, null Tirtadanu   +3 more
exaly   +2 more sources

Genetic identification of three CITES-listed sharks using a paper-based Lab-on-a-Chip (LOC). [PDF]

PLoS ONE
Threatened shark species are caught in large numbers by artisanal and commercial fisheries and traded globally. Monitoring both which shark species are caught and sold in fisheries, and the export of CITES-restricted products, are essential in reducing ...
Guuske P Tiktak, Alexandria Gabb, Margarita Brandt, Fernando R Diz, Karla Bravo-Vásquez, César Peñaherrera-Palma, Jonathan Valdiviezo-Rivera, Aaron Carlisle, Louise M Melling, Bradley Cain, David Megson, Richard Preziosi, Kirsty J Shaw   +12 more
doaj   +2 more sources

Designing and evaluating alternative livelihoods for shark conservation: a case study on thresher sharks in Alor Island, Indonesia [PDF]

Oryx
The pelagic thresher shark Alopias pelagicus is an Evolutionarily Distinct and Globally Endangered species primarily threatened by overfishing. Indonesia is the world's largest shark fishing nation, and in Alor Island, thresher sharks have been a primary
Rafid A. Shidqi, Dewi R. Sari, Jeheskiel Alopen, Yodhikson M. Bang, Igo Arianto, Primiaty N. S. Kopong, Vivekananda Gitandjali TD, Etoile Smulders, Hollie Booth   +8 more
doaj   +2 more sources

Mitigating catches of endangered sharks species in small-scale fisheries: a case study on pelagic thresher sharks (Alopias pelagicus Nakamura, 1935) in the eastern Indian Ocean

, 2022
Many shark species (Class Chondrichthyes) are threatened with extinction due to overfishing. Of the >1,000 described Chondrichthyan species, the pelagic thresher sharks (Alopias pelagicus) are of particular conservation priority since they are evolutionarily distinct and globally endangered.
Muhammad Ichsan, Shoimatul Ula, Hollie Booth, null Herman, null Dharmadi   +4 more
openaire   +2 more sources