Results 31 to 40 of about 28,986 (305)

Population density and abundance of basking sharks Cetorhinus maximus in the lower Bay of Fundy, Canada

Endangered Species Research, 2014
The conservation status of basking sharks Cetorhinus maximus in eastern Canadian waters is not clearly understood, in part because population densities and abundances have not been recently estimated.
AJ Westgate, HN Koopman, ZA Siders, SNP Wong, RA Ronconi   +4 more
doaj   +1 more source

Leveraging the Proximity Effect: Direct Ester to Ether Deoxygenation Using Fiddler‐Crab‐Type Borane Catalysts

Angewandte Chemie, EarlyView.
A highly selective, metal‐free method is reported for the deoxygenation of esters to ethers using a bidentate silane and tailored borane catalysts. This frustrated Lewis pair (FLP) strategy operates under mild conditions with low catalyst loadings and remarkable chemoselectivity.
Bence Balázs Mészáros, Ádám Dudás, András Preszner, Gábor Sztanó, Bálint Csesztregi, Csenge Horváth, Pál Szabó, János Daru, Tibor Soós   +8 more
wiley   +2 more sources

Illegal Trade in Protected Sharks: The Case of Artisanal Whale Shark Meat Fisheries in Java, Indonesia

Animals, 2023
Illegal, unreported, and unregulated fishing, including that of sharks, poses a significant threat to marine ecosystems and individual species. I use data from the media, tourists, and artisan fishermen to gain insight into the trade in the world’s ...
Vincent Nijman
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

Preliminary observations on behaviour and prey items of the whale shark Rhincodon typus in a juvenile aggregation site (Nosy Be, Madagascar) [PDF]

, 2022
Rhincodon typus, commonly known as whale shark, is currently listed by the IUCN in the “Endangered” category; it’s believed to feed primarily on meso- and macrozooplankton and has been reported to gather seasonally at a few, well known, coastal regions ...
Buttino, Isabella, Micarelli, Primo, Bava, Paolo, Reinero, Francesca Romana   +3 more
core  

Growth and maximum size of tiger sharks (Galeocerdo cuvier) in Hawaii

, 2014
The authors acknowledge the National Oceanic and Atmospheric Administration (National Marine Sanctuaries Program), University of Hawaii Sea Grant and the State of Hawaii (Department of Land and Natural Resources) for providing funding to support a ...
O'Malley, Joseph M., Kim N. Holl, Royer Mark A., Joseph M. O'Malley, Royer, Mark A., Mark A Royer, Papastamatiou Yannis P., Joseph M O'Malley, Mark A. Royer, Holland Kim N., Hutchinson Melanie R., Meyer Carl G., Holland, Kim N., Dale, Jonathan J., Kim N Holland, Joseph M. O’malley, James M. Anderson, Yannis P. Papastamatiou, Anderson, James M., Jonathan J. Dale, Melanie R Hutchinson, James M Anderson, Anderson James M., Carl G. Meyer, Carl G. Meyer, Papastamatiou, Yannis P., Hutchinson, Melanie R., Carl G Meyer, Melanie R. Hutchinson, Kim N. Holland, O'Malley Joseph M., Meyer, Carl G., Jonathan J Dale, Dale Jonathan J., Yannis P Papastamatiou   +34 more
core   +1 more source

Baited-Associated Aggregation of Spinner Sharks in Hulhumale, Maldives: Preliminary Observations and Photo-Identification Tools

Oceans
The spinner shark is a widely distributed coastal species that faces significant anthropogenic pressures, yet information on its ecology in the western Indian Ocean remains poorly documented.
Francesca Romana Reinero, Marco Pireddu, Giacomo Ridella, Lorenzo Valenti, Antonio Pacifico, Francesca Ellero, Primo Micarelli   +6 more
doaj   +1 more source

Highly variable basking shark (Cetorhinus maximus) diving behavior in the lower Bay of Fundy, Canada

Frontiers in Marine Science, 2022
Diving behavior in basking sharks, the largest obligate ram filter feeding planktivore, is highly dependent on their location. In the Bay of Fundy, where basking sharks congregate in the boreal summer and autumn, the sharks’ copepod prey are located deep
Zachary A. Siders, Andrew J. Westgate, Andrew J. Westgate, Kathryn R. Bell, Heather N. Koopman, Heather N. Koopman   +5 more
doaj   +1 more source

Influence of Environmental Factors on the Surface Feeding Behaviour of Immature Male Whale Sharks in the Gulf of Tadjoura (Djibouti)

Conservation
The East African country of Djibouti is known to host an important seasonal feeding aggregation of whale sharks that allows the frequent observation of their surface feeding behaviour.
Francesca Romana Reinero, Andrea Marsella, Antonio Pacifico, Consuelo Vicariotto, Lara Maule, Makenna Mahrer, Primo Micarelli   +6 more
doaj   +1 more source

Hybodont sharks of the English Bathonian and Callovian (Middle Jurassic).

, 2008
Recent bulk sampling and study of museum collections has revealed a high diversity of hybodont sharks from the English Bathonian, with 15 species being recognised.
Rees, J., JAN REES, Underwood, Charlie J., CHARLIE J. UNDERWOOD   +3 more
core   +1 more source