predatory behaviour of white sharks (carcharodon carcharias) at seal island, south africa

  title={predatory behaviour of white sharks (carcharodon carcharias) at seal island, south africa},
  author={R. Aidan Martin and Neil Hammerschlag and Ralph S. Collier and Chris Fallows},
  journal={Journal of the Marine Biological Association of the United Kingdom},
  pages={1121 - 1135}
between 1997 and 2003, there were 2088 natural predations by white sharks (carcharodon carcharias) on cape fur seals (arctocephalus pusillus pusillus) and 121 strikes on towed seal-shaped decoys were documented from observation vessels at seal island, south africa. white sharks at seal island appear to selectively target lone, incoming young of the year cape fur seals at or near the surface. most attacks lasted <1 min and consisted of a single breach, with predatory success rate decreasing… 

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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.

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The increase in population size of the grey seal off eastern Canada over the past 20 years may be attributed to a decrease in shark stocks, their supposed predators, which is reflected in greater infestation of commercially important fish species by the codworm.

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Estimates from the number of sharks caught annually and the frequency of occurrence of dolphin flukes and vertebrae in their stomachs suggest that a mininum of 20 bottlenose dolphins or 2% of the estimated population in southern Natal coastal waters are killed each year by sharks.

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Diamond pythons (Morelia s. spilota) are large (to 3 m) snakes of temperate-zone coastal eastern Australia. Foraging behavior was studied by observation of telemetered snakes, and diets determined by

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This study tests the hypothesis that preparatory, expansive, compressive and recovery phases of biting behavior known for aquatically feeding anamniotes are conserved among extant elasmobranch fishes and proposes a model for the feeding mechanism in carcharhinid sharks, including upper jaw protrusion.