Results 21 to 30 of about 410 (131)

Vulnerability Assessment of Pelagic Sharks in the Western North Pacific by Using an Integrated Ecological Risk Assessment

Animals, 2021
The vulnerability of 11 pelagic shark species caught by the Taiwanese coastal and offshore longline fisheries in the western North Pacific were assessed by an ecological risk assessment (ERA) and 10 of the 11 species was assessed by using an integrated ...
Kwang-Ming Liu, Lung-Hsin Huang, Kuan-Yu Su, Shoou-Jeng Joung   +3 more
doaj   +1 more source

In Troubled Waters: Applying DNA Barcoding to Monitor Singapore's Shark Fin Trade. [PDF]

Ecol Evol
Bar chart detailing species or genus identification, occurrence and IUCN status. An asterisk (*) indicates CITES Appendix II listed species. An asterisk next to a genus level identification indicates that the species identified within this genus are listed on Appendix II.
Ramanan A, Quek KH, Chung Mae Sze N, Oo Xinyen NI, Kim Hyun Soo D, Sung C, Dimitrov V, Nix RP, Sng MHM, Lim PXJ, Lim EXY, Wainwright BJ.   +11 more
europepmc   +2 more sources

Thresher sharks (Alopiidae) catch in the pelagic fisheries of Western Indonesia

IOP Conference Series: Earth and Environmental Science, 2020
Abstract Thresher sharks (family Alopiidae) are an evolutionarily distinct and globally endangered species group. Indonesia is the world’s largest shark fishing nation, and a global priority for reducing the capture of threatened shark species.
M Ichsan, S Ula, B Simeon, E Muttaqin, H Booth   +4 more
openaire   +1 more source

Concentrations and stable isotopes of mercury in sharks of the Galapagos Marine Reserve: Human health concerns and feeding patterns

Ecotoxicology and Environmental Safety, 2021
The human ingestion of mercury (Hg) from sea food is of big concern worldwide due to adverse health effects, and more specifically if shark consumption constitutes a regular part of the human diet.
Laurence Maurice, Gaël Le Croizier, Gabriela Morales, Natalia Carpintero, Juan M. Guayasamin, Jeroen Sonke, Diego Páez-Rosas, David Point, Walter Bustos, Valeria Ochoa-Herrera   +9 more
doaj   +1 more source

Evidence of Fine-Scale Genetic Structure in Tiger Sharks (<i>Galeocerdo cuvier</i>) Highlights the Importance of Stratified Sampling Regimes. [PDF]

Evol Appl
ABSTRACT Understanding the biological connections between populations is essential to wildlife management and conservation. Genetic studies play a central role in characterizing these connections, but typically require stratified sampling regimes to assess the spatial extent and strength of gene flow, and the relative influences of sex and ontogeny on ...
Fish JJ, Dudgeon C, Barnett A, Butcher PA, Holmes BJ, Huveneers C, Meyer L, Vigliola L, Sherman CDH, Miller AD.   +9 more
europepmc   +2 more sources

Diel Vertical Habitat Use Observations of a Scalloped Hammerhead and a Bigeye Thresher in the Northern Gulf of Mexico

Fishes, 2022
Understanding habitat use of elasmobranchs in pelagic environments is complicated due to the mobility of these large animals and their ability to move great distances in a three-dimensional environment.
Taylor Anderson, Emily N. Meese, James Marcus Drymon, Gregory W. Stunz, Brett Falterman, Elias Menjivar, R. J. David Wells   +6 more
doaj   +1 more source

Shark conservation hindered by lack of habitat protection

Global Ecology and Conservation, 2020
Many of the world’s shark populations are in decline, indicating the need for improved conservation and management. Well managed and appropriately located marine parks and marine protected areas (MPAs) have potential to enhance shark conservation by ...
Charlotte A. Birkmanis, Julian C. Partridge, Leigh W. Simmons, Michelle R. Heupel, Ana M.M. Sequeira   +4 more
doaj   +1 more source

Thresher sharks use tail-slaps as a hunting strategy.

PLoS ONE, 2013
The hunting strategies of pelagic thresher sharks (Alopias pelagicus) were investigated at Pescador Island in the Philippines. It has long been suspected that thresher sharks hunt with their scythe-like tails but the kinematics associated with the ...
Simon P Oliver, John R Turner, Klemens Gann, Medel Silvosa, Tim D'Urban Jackson   +4 more
doaj   +1 more source

Feeding behavior and trophic interaction of three shark species in the Galapagos Marine Reserve [PDF]

PeerJ, 2018
There is great concern about the future of sharks in Ecuador because of the lack of biological knowledge of most species that inhabit the region. This paper analyzes the feeding behavior of the pelagic thresher shark (Alopias pelagicus), the blue shark ...
Diego Páez-Rosas, Paul Insuasti-Zarate, Marjorie Riofrío-Lazo, Felipe Galván-Magaña   +3 more
doaj   +2 more sources

Effects of protection on large-bodied reef fishes in the western Indian Ocean. [PDF]

Conserv Biol
Abstract Predatory and large‐bodied coral reef fishes have fundamental roles in the functioning and biodiversity of coral reef ecosystems, but their populations are declining, largely due to overexploitation in fisheries. These fishes include sharks, groupers, Humphead wrasse (Cheilinus undulatus), and Green Humphead parrotfish (Bolbometopon muricatum).
Samoilys M, Osuka KE, Roche R, Koldewey H, Chabanet P.   +4 more
europepmc   +2 more sources