Results 31 to 40 of about 34,984 (290)

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

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

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

Estimates of numbers of White sharks (Carcharodon carcharias) in Eastern and Southern South Africa : a post-moratorium assessment [PDF]

, 2004
A moratorium was placed on fishing for white sharks (Carcharodon carcharias) in South Africa in 1991 prior to knowing the population status of this species.
Tress, Mary Elizabeth
core   +1 more source

Jumping the shark [PDF]

Genome Biology, 2007
In popular-culture, 'jumping the shark' refers to an abandoning of core values in an attempt to appeal to dwindling audiences, a metaphor that might be reasonably be applied to some areas of genomics-based research.
openaire   +2 more sources

A Mozambican marine protected area provides important habitat for vulnerable pelagic sharks [PDF]

, 2023
Pelagic sharks play key roles in marine ecosystems, but are increasingly threatened by human extraction, habitat degradation and mismanagement. We investigated the use of protected and unprotected coastal habitats by bull (Carcharhinus leucas) and ...
Murie, Calum, Brown, James, Jije, Mauro G., Dicken, Matt, Gavard, Livia, Bowles, Karen R., Oliver, Simon P., Lawrence, Andrew, Lebrato, Mario   +8 more
core   +1 more source

Behavioural ecology of white sharks carcharodon carcharias in False Bay, South Africa: towards improved management and conservation of a threatened apex predator [PDF]

, 2014
Includes bibliographical references.The coastal waters off South Africa support a significant proportion of the global white shark population, with at least four well-established coastal aggregation sites.
Kock, Alison Ann
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   +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

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