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predatory behaviour of white sharks (carcharodon carcharias) at seal island, south africa
- R. Martin, N. Hammerschlag, Ralph S. Collier, C. Fallows
- Environmental ScienceJournal of the Marine Biological Association of…
- 1 October 2005
Analysis of white shark upper tooth morphology and spacing suggest the reversed intermediate teeth of white sharks occur at the strongest part of the jaw and produce the largest wound, which is the first evidence of social influence on predation in any elasmobranch.
Cyanobacterial Blooms and the Occurrence of the neurotoxin beta-N-methylamino-L-alanine (BMAA) in South Florida Aquatic Food Webs.
Global shark currency: the distribution, frequency, and economic value of shark ecotourism
Ecotourism represents a highly popularised activity which has exhibited global growth in recent years. In the present paper, we examine the distribution, frequency, and economic value of shark-based…
Physiological stress response, reflex impairment, and survival of five sympatric shark species following experimental capture and release
The results show that certain species of coastal sharks are inherently vulnerable to capture stress and mortality resulting from fisheries interactions and should receive additional attention in future conservation strategies.
Don't bite the hand that feeds: assessing ecological impacts of provisioning ecotourism on an apex marine predator
This is the first satellite telemetry study and movement analysis to explicitly examine the long-range migrations and habitat utilization of tiger sharks originating in the Bahamas and Florida, two areas that differ significantly with regards to the presence of provisioning ecotourism.
Ocean-wide tracking of pelagic sharks reveals extent of overlap with longline fishing hotspots
- N. Queiroz, N. E. Humphries, D. W. Sims
- Environmental ScienceProceedings of the National Academy of Sciences
- 25 January 2016
The need for international catch limits for pelagic sharks is argued and a future role of combining fine-scale fish and vessel telemetry to inform the ocean-scale management of fisheries is identified.
Effects of environmental conditions on predator–prey interactions between white sharks (Carcharodon carcharias) and Cape fur seals (Arctocephalus pusillus pusillus) at Seal Island, South Africa
- N. Hammerschlag, R. Martin, C. Fallows
- Environmental ScienceEnvironmental Biology of Fishes
- 3 June 2006
Effects of environmental factors on frequency and success rate of natural predatory attacks by white sharks, Carcharodon carcharias, on Cape fur seals, were studied over an 8-year period at Seal Island, South Africa.
Hunting patterns and geographic profiling of white shark predation
It is found that spatial patterns of shark predation at this site are nonrandom, and smaller sharks exhibit more dispersed prey search patterns and have lower predatory success rates than larger conspecifics, suggesting possible refinement of hunting strategy with experience or competitive exclusion of smaller sharks from the most profitable hunting locations.
Vulnerability of oceanic sharks as pelagic longline bycatch