Results 21 to 30 of about 99,750 (176)

First Report of Echthrogaleus denticulatus (Smith 1874) on the Pelagic Thresher Shark (Alopias pelagicus Nakamura 1935) from Indian EEZ of Andaman Sea

Sains Malaysiana, 2017
The present study reports the occurrence of the pandarid parasite, Echthrogaleus denticulatus as an ectoparasite on the pelagic thresher shark (Alopias pelagicus) from the Indian EEZ of Andaman Sea. A total of 36 parasite specimens were found aggregated near the cloacal aperture of eight pelagic thresher sharks caught as bycatch by multifilament tuna ...
Pradeep H.D., Arun Kumar M., Swapnil S.S.   +2 more
openaire   +2 more sources

Oceanic sharks clean at coastal seamount. [PDF]

PLoS ONE, 2011
Interactions between pelagic thresher sharks (Alopias pelagicus) and cleaner wrasse were investigated at a seamount in the Philippines. Cleaning associations between sharks and teleosts are poorly understood, but the observable interactions seen at this ...
Simon P Oliver, Nigel E Hussey, John R Turner, Alison J Beckett   +3 more
doaj   +1 more source

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

Quantifying maternal transfer of trace elements and stable isotopes in the endangered pelagic thresher shark (Alopias pelagicus)

Chemosphere, 2022
To quantify maternal provisioning of nutrients in the pelagic thresher shark (Alopias pelagicus) and the potential for negative impacts, the concentrations of trace elements (essential: Co, Cr, Cu, Mn, Ni, Se, and Zn; nonessential: As, Ba, Cd, Hg, and Pb) and fractionation of stable isotopes (13C and 15N) were analyzed in the muscle and liver of 10 ...
Zezheng Li, Nigel E. Hussey, Yunkai Li
openaire   +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

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

Characteristics of the shark fisheries of Fiji [PDF]

, 2015
Limited information is available on artisanal and subsistence shark fisheries across the Pacific. The aim of this study was to investigate Fiji’s inshore fisheries which catch sharks.
Adrian-Kalchhauser, I., Brunnschweiler, J. M., Burkhardt-Holm, P., White, W. T., Glaus, K. B. J.   +4 more
core   +1 more source

SHARK - National environmental monitoring of Grey seal in Sweden since 1989

, 2022
The national monitoring program was initiated by the Swedish Environmental Protection Agency and is now financed by the Swedish Agency for Marine and Water Management. The monitoring is performed by the Swedish Museum of Natural History. Data is stored
SHARK
core   +1 more source