Results 21 to 30 of about 94,183 (300)

At-vessel fishing mortality for six species of sharks caught in the northwest Atlantic and Gulf of Mexico [PDF]

, 2007
From 1994-2005 the Commercial Shark Fishery Observer Program (CSFOP) placed fishery observers aboard US bottom longline vessels engaged in directed fishing for sharks in the region from New Jersey to Louisiana, USA.
Burgess, George H., Morgan, Alexia
core   +2 more sources

Connecting post-release mortality to the physiological stress response of large coastal sharks in a commercial longline fishery.

PLoS ONE, 2021
Bycatch mortality is a major factor contributing to shark population declines. Post-release mortality (PRM) is particularly difficult to quantify, limiting the accuracy of stock assessments.
Nicholas M Whitney, Karissa O Lear, John J Morris, Robert E Hueter, John K Carlson, Heather M Marshall   +5 more
doaj   +1 more source

Stable Isotope Analysis of Juvenile White Sharks Inside a Nursery Area Reveals Foraging in Demersal-Inshore Habitats and Trophic Overlap With Sympatric Sharks

Frontiers in Marine Science, 2021
Knowledge about top predators’ trophic ecology is crucial for defining their role in ecosystems, understanding habitat preferences, characterizing life stage-specific feeding habits, and evaluating their interaction with fisheries.
Emiliano García-Rodríguez, Sharon Z. Herzka, Oscar Sosa-Nishizaki, Christopher G. Lowe, John B. O’Sullivan   +4 more
doaj   +1 more source

Diving behaviour of whale sharks in relation to a predictable food pulse [PDF]

, 2005
We present diving data for four whale sharks in relation to a predictable food pulse (reef fish spawn) and an analysis of the longest continuous fine-resolution diving record for a planktivorous shark.
Callum M Roberts, Finstad W.O, Gudger E.W, James C.R Smart, Rachel T Graham   +4 more
core   +2 more sources

Comparative feeding ecology of bull sharks (Carcharhinus leucas) in the coastal waters of the southwest Indian Ocean inferred from stable isotope analysis. [PDF]

PLoS ONE, 2013
As apex predators, sharks play an important role shaping their respective marine communities through predation and associated risk effects. Understanding the predatory dynamics of sharks within communities is, therefore, necessary to establish effective ...
Ryan Daly, Pierre W Froneman, Malcolm J Smale   +2 more
doaj   +1 more source

Capture Response and Long-Term Fate of White Sharks (Carcharodon carcharias) after Release from SMART Drumlines

Biology, 2023
Human-shark conflict has been managed through catch-and-kill policies in most parts of the world. More recently, there has been a greater demand for shark bite mitigation measures to improve protection for water users whilst minimizing harm to non-target
Paul A. Butcher, Kate A. Lee, Craig P. Brand, Christopher R. Gallen, Marcel Green, Amy F. Smoothey, Victor M. Peddemors   +6 more
doaj   +1 more source

Barremian and Aptian (Cretaceous) sharks and rays from Speeton, Yorkshire, north-east England [PDF]

, 2004
Bulk sampling of a number of horizons within the upper part of the Speeton Clay Type section has produced teeth and other remains of sharks and rays from several poorly studied horizons.
Applegate, Ayres, Batchelor, Berg, Biddle, Biddle, Bonaparte, C. J. Underwood, Cappetta, Cappetta, Cappetta, Cappetta, Casier, Compagno, de Blainvile, Duffin, Gill, Glickman, Herman, Herman, Kriwet, Müller, Pictet, Regan, Schmitz, Siverson, Siverson, Stinton, Thies, Thies, Thiolliere, Underwood, Underwood, Ward, Woodward   +34 more
core   +1 more source

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

Ecological impact of the end-Cretaceous extinction on lamniform sharks. [PDF]

PLoS ONE, 2017
Lamniform sharks are apex marine predators undergoing dramatic local and regional decline worldwide, with consequences for marine ecosystems that are difficult to predict. Through their long history, lamniform sharks have faced widespread extinction, and
Rachel A Belben, Charlie J Underwood, Zerina Johanson, Richard J Twitchett   +3 more
doaj   +1 more source

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