R. Philip Henderson’s scientific contributions

... During high tide, the minimum depth from which sharks could approach seals was closer to shore, increasing the availability of prey and the possibility of predation. Additionally, at the Farallon Islands in California, WSs' attacks increased with high tide that reduced the haul-out area for elephant seals, forcing them into the water and increasing predation events [11,16,27]. In fact, during high tide events, the number of Cape fur seals around our boat anchored at 100-150 m from Dyer Island increased, inducing sharks to use their visual acuity both to attack them and our seal-shaped decoy. ...

Reference:

Influence of Environmental Factors on Prey Discrimination of Bait-Attracted White Sharks from Gansbaai, South Africa

... raggedtooth sharks Carcharias taurus in South Africa [Wintner & Kerwath 2018]), new moon (e.g. several Carcharhinus spp. in Australia [Lee et al. 2018] and South Africa [Wintner & Kerwath 2018]; blue sharks Prionace glauca in Australia [Lowry et al. 2007]; and white sharks C. carcharias in Australia [Werry et al. 2012], California [Pyle et al. 1996], and South Africa [Weltz et al. 2013;Wintner & Kerwath 2018]) or bimonthly, around the first and third quarters (e.g. copper sharks C. brachyurus and tiger sharks G. cuvier in South Africa [Wintner & Kerwath 2018]). ...

Reference:

The lunar cycle does not influence catch rates or foraging success of neonatal reef sharks in an amphidromic nursery system

... Teenage boys are biologically predisposed to defy authority, especially when it 56 involves risky behaviour. Moreover, children are at greater risk of attack, since sharks tend to 57 go for the smaller of two objects presented to them (Anderson 1996). Other devices are 58 available, but none is as effective as Shark Shield™. ...

Reference:

Shark Mitigation for Surfing: Science, Technology, and Praxis