Marine Biology

, Volume 160, Issue 4, pp 889–907 | Cite as

The effects of shark cage-diving operations on the behaviour and movements of white sharks, Carcharodon carcharias, at the Neptune Islands, South Australia

Original Paper

Abstract

The attraction or provisioning of sharks for the purpose of tourism is a lucrative and popular industry that remains controversial regarding its possible risks to target species and impacts on local ecosystems. The long-term impacts of such activities on the behaviour and movement patterns of sharks have typically been difficult to establish as most studies investigate contemporary behaviour concurrent with existing operations and thus have no comparative base from which to compare effects. We compared patterns of residency and behaviour of acoustic-tagged white sharks at the Neptune Islands in South Australia between periods before and after an abrupt and sustained doubling of cage-diving effort that occurred in 2007. The number of sharks reported by cage-dive operators significantly increased after 2007. Comparisons also revealed there were significant increases in sharks’ periods of residency, the periods spent within areas where shark cage-diving operations occur and changes in sharks’ diel pattern of habitat use. Changes were site-specific with no significant differences in shark behaviour revealed over the same period at an island group 12 km from regular shark cage-dive sites. The results suggest that cage-diving operations can lead to long-term changes in the site-specific behaviour of a highly vagile shark species which may need to be considered in the context of their conservation and in managing the impacts of the industry.

References

  1. Altmann J, Muruthi P (1988) Differences in daily life between semi-provisioned and wild feeding baboons. Am J Primatol 15:213–221CrossRefGoogle Scholar
  2. Amo L, Lopez P, Martin J (2006) Nature-based tourism as a form of predation risk affects body condition and health state of Podarcis muralis lizards. Biol Conserv 131:402–409CrossRefGoogle Scholar
  3. Anderson SD, Chapple TK, Jorgensen SJ, Klimley AP, Block BA (2011) Long-term individual identification and site fidelity of white sharks, Carcharodon carcharias, off California using dorsal fins. Mar Biol 158:1233–1237CrossRefGoogle Scholar
  4. Berens P (2009) CircStat: a Matlab toolbox for circular statistics. J Stat Softw 31:1–29Google Scholar
  5. Bonfil R, Meyer M, Scholl MC, Johnson R, O’Brien S, Oosthuizen H, Swanson S, Kotze D, Paterson M (2005) Transoceanic migration, spatial dynamics, and population linkages of white sharks. Science 310:100–103CrossRefGoogle Scholar
  6. Bookbinder MP, Dinerstein E, Rijal A, Cauley H, Rajouria A (1998) Ecotourism’s support of biodiversity conservation. Conserv Biol 12:1399–1404CrossRefGoogle Scholar
  7. Bradford RW, Bruce BD, McAuley RB, Robinson G (2011) An evaluation of passive acoustic monitoring using satellite communication technology for near real-time detection of tagged animals in a marine setting. Open Fish Sci J 4:10–20CrossRefGoogle Scholar
  8. Bradshaw CJA, Boutin S, Hebert DM (1998) Energetic implications of disturbance caused by petroleum exploration to woodland caribou. Can J Zool 76:1319–1324CrossRefGoogle Scholar
  9. Bruce BD, Bradford RW (2012) Spatial dynamics and habitat preferences of juvenile white sharks in eastern Australia. In: Domeier M (ed) Global perspectives on the biology and life history of the Great White Shark. CRC Press, Boca Raton, pp 225–253CrossRefGoogle Scholar
  10. Bruce BD, Stevens JD, Bradford RW (2005) Site fidelity, residence times & home range patterns of white sharks around pinniped colonies. Final Report to the Australian Government Department of the Environment and Heritage. CSIRO Marine and Atmospheric Research, HobartGoogle Scholar
  11. Bruce BD, Stevens JD, Malcolm H (2006) Movements and swimming behaviour of white sharks (Carcharodon carcharias) in Australian waters. Mar Biol 150:161–172CrossRefGoogle Scholar
  12. Burgess GH (1998) Diving with elasmobranchs: a call for restraint. IUCN Shark Specialist Group. Shark News 11:1–4Google Scholar
  13. Case TJ, Gilpin ME (1974) Interference competition and niche theory. Proceedings of the National Academy of Science USA 71:3073–3077CrossRefGoogle Scholar
  14. Clarke C, Lea JSE, Ormond RFG (2011) Reef-use and residency patterns of a baited population of silky sharks, Carcharhinus falciformis, in the Red Sea. Mar Freshw Res 62:668–675CrossRefGoogle Scholar
  15. Clua E, Buray N, Legendre P, Mourier J, Planes S (2010) Behavioural response of sicklefin lemon sharks Negaprion acutidens to underwater feeding for ecotourism purposes. Mar Ecol Prog Ser 414:257–266CrossRefGoogle Scholar
  16. Conover WJ (1999) Practical non-parametric statistics (3rd edition). Wiley, New YorkGoogle Scholar
  17. Curtis TH, Kelly JT, Menard KL, Laroche RK, Jones RE, Klimley AP (2006) Observations on the behaviour of white sharks scavenging from a whale carcass at Point Reyes, California. California Fish and Game 92:113–124Google Scholar
  18. DENR (2010) Environmental, Economic and Social Values of the Neptune Islands Group Marine Park, Department of Environment and Natural Resources, South AustraliaGoogle Scholar
  19. Domeier ML (2012) A new life-history hypothesis for white sharks, Carcharodon carcharias, in the northeast Pacific. In: Domeier M (ed) Global perspectives on the biology and life history of the Great White Shark. CRC Press, Boca Raton, pp 199–223CrossRefGoogle Scholar
  20. Domeier ML, Nasby-Lucas N (2008) Migration patterns of white sharks Carcharodon carcharias tagged at Guadalupe Island, Mexico, and identification of an eastern Pacific shared offshore foraging area. Mar Ecol Prog Ser 370:221–237CrossRefGoogle Scholar
  21. Fitzpatrick R, Abrantes KG, Seymour J, Barnett A (2011) Variation in depth of whitetip reef sharks: does provisioning ecotourism change their behaviour? Coral Reefs. doi:10.1007/s00338-011-0769-8 Google Scholar
  22. Gallagher AJ, Hammerschlag N (2011) Global shark currency: the distribution and frequency, and socio-economics of shark ecotourism. Current Issues in Tourism 14:797–812CrossRefGoogle Scholar
  23. Gutteridge TL, Myrberg A, porcher IF, Sims DW, Krause J (2009) The role of learning in shark behaviour. Fish Fish 10:450–469CrossRefGoogle Scholar
  24. Hammerschlag N, Gallagher AJ, Wester J, Luo J, Ault JS (2012) Don’t bite the hand that feeds: assessing the ecological impacts of provisioning ecotourism on an apex marine predator. Funct Ecol. doi:10.1111/j.1365-2435.2012.01973.x Google Scholar
  25. Holland KN, Wetherbee BM, Peterson JD, Lowe CG (1993) Movements and distribution of hammerhead shark pups on their natal grounds. Copeia 1993:495–502CrossRefGoogle Scholar
  26. Johnson R, Bester MN, Dudley SFJ, Oosthuizen WH, Meyer M, Hancke L, Gennari E (2009) Coastal swimming patterns of white sharks (Carcharodon carcharias) at Mossel Bay, South Africa. Environ Biol Fishes 85:189–200CrossRefGoogle Scholar
  27. Jorgensen SJ, Reeb CA, Chapple TK, Anderson S, Perle C, Sommeran SR, Fritz-Cope C, Brown AC, Klimley AP, Block BA (2009) Philopatry and migration of Pacific white sharks. Proc R Soc B. doi:10.1098/rspb.2009.1155
  28. Klimley AP, Anderson SD (1996) Residency patterns of white sharks at the South Farallon Islands, California. In: Klimley AP, Ainley DG (eds) Great White Sharks: The Biology of Carcharodon carcharias. Academic Press, San Diego, pp 365–374Google Scholar
  29. Klimley AP, Butler SB, Nelson DR, Stull AT (1988) Diel movements of scalloped hammerhead sharks, Sphyrna lewini Griffith and Smith, to and from a seamount in the Gulf of California. J Fish Biol 33:751–761CrossRefGoogle Scholar
  30. Krause J, Ruxton GD (2002) Living in groups. Oxford University Press, OxfordGoogle Scholar
  31. Kruger O (2005) The role of ecotourism in conservation: panacea or Pandora’s box? Biodivers Conserv 14:579–600CrossRefGoogle Scholar
  32. Laroche RK, Kock AA, Dill LM, Oosthuizen WH (2007) Effects of provisioning ecotourism activity on the behaviour of white sharks, Carcharodon carcharias. Mar Ecol Prog Ser 338:199–209CrossRefGoogle Scholar
  33. Malcolm H, Bruce BD, Stevens JD (2001) A review of the biology and status of white sharks in Australian waters. Report to Environment Australia, Marine Species Protection Program. CSIRO Marine Research, Hobart, p 113Google Scholar
  34. Maljković A, Côté I (2011) Effects of tourism-related provisioning on the trophic signatures and movement patterns of an apex predator, the Caribbean reef shark. Biol Conserv 144:859–865CrossRefGoogle Scholar
  35. Marshall AD, Dudgeon CL, Bennett MB (2011) Size and structure of a photographically identified population of manta rays Manta alfredi in southern Mozambique. Mar Biol 158:1111–1124CrossRefGoogle Scholar
  36. Martin RA, Hammerschlag N, Collier RS, Fallows C (2005) Predatory behaviour of white sharks (Carcharodon carcharias) at Seal Island, South Africa. J Mar Biol Assoc UK 85:1121–1135CrossRefGoogle Scholar
  37. Meyer CG, Dale JJ, Papastamatiou YP, Whitney NM, Holland KN (2009) Seasonal cycles and long-term trends in abundance and species composition of sharks associated with cage diving ecotourism activities in Hawaii. Environ Conserv 36:104–111CrossRefGoogle Scholar
  38. Nasby-Lucas N, Domeier ML (2012) Use of Photo Identification to describe a white shark aggregation at Guadalupe Island, Mexico. In: Domeier M (ed) Global Perspectives on the Biology and Life History of the Great White Shark. CRC Press, Boca Raton, pp 381–392CrossRefGoogle Scholar
  39. Newsome D, Rodger K (2008) To feed or not to feed: a contentious issue in wildlife tourism. In: Lunney D, Munn A, Meikle W (eds) Too close for comfort: contentious issues in human-wildlife encounters. Royal Zoological Society of New South Wales, Mosman, pp 255–270CrossRefGoogle Scholar
  40. Newsome D, Lewis A, Moncrieff D (2004) Impacts and risks associated with developing, but unsupervised, stingray tourism at Hamelin Bay, Western Australia. Int J Tourism Res 6:305–323CrossRefGoogle Scholar
  41. Orams MB (2002) Feeding wildlife as a tourism attraction: a review of issues and impacts. Tourism Management 23:281–293CrossRefGoogle Scholar
  42. Pyle P, Schramm MJ, Keiper C, Anderson SD (1999) Predation on a white shark (Carcharodon carcharias) by a killer whale (Orcinus orca) and a possible case of competitive displacement. Marine Mammal Science 15:563–568CrossRefGoogle Scholar
  43. R Development Core Team R (2012) R: A language and environment for statistical computing. R Foundation for Statistical Computing, Vienna, Austria. ISBN 3-900051-07-0, URL http://www.R-project.org
  44. Robbins RL (2007) Environmental variables affecting the sexual segregation of gtreat white sharks Carcharodon carcharias at the Neptune Islands South Australia. J Fish Biol 70:1350–1364CrossRefGoogle Scholar
  45. Semeniuk CAD, Rothley KD (2008) Costs of group-living for a normally solitary forager: effects of provisioning tourism on southern stingrays Dasyatis Americana. Mar Ecol Prog Ser 357:271–282CrossRefGoogle Scholar
  46. Semeniuk CAD, Bourgron S, Smith SL, Rothley KD (2009) Hematological differences between stingrays at tourist and non-visited sites suggest physiological costs of wildlife tourism. Biol Conserv 142:1818–1829CrossRefGoogle Scholar
  47. Shaughnessy PD, McKeown A (2002) Trends in abundance of New Zealand fur seals, Arctocephalus forsteri, at the Neptune Islands, South Australia. Wildlife Research 29:363–370CrossRefGoogle Scholar
  48. Simpfendorfer CA, Heupel MR, Heuter RE (2002) Estimation of short-term centers of activity from an array of omnidirectional hydrophones and its use in studying animal movements. Can J Fish Aquat Sci 59:23–32CrossRefGoogle Scholar
  49. Sims DW, Humphries NE, Bradford RW, Bruce BD (2012) Levy flight and brownian search patterns of white sharks in response to different prey fields. J Anim Ecol 81:432–442CrossRefGoogle Scholar
  50. Strong WR Jr, Bruce BD, Nelson DR, Murphy RC (1996) Population dynamics of white sharks in Spencer Gulf, South Australia. In: Klimley AP, Ainley DG (eds) Great White Sharks: the biology of Carcharodon carcharias. Academic Press, San Diego, pp 401–414CrossRefGoogle Scholar
  51. Tapper R (2006) Wildlife watching and tourism: a study on the benefits and risks of a fast growing tourism activity and its impacts on species. UNEP/CMC Secretariat, Bonn, p 68Google Scholar
  52. Topelko KN, Dearden P (2005) The shark watching industry and its potential contribution to shark conservation. Journal of Ecotourism 4:108–128CrossRefGoogle Scholar
  53. Vianna GMS, Meekan MG, Pannell DJ, March SP, Meeuwig JJ (2012) Socio-economic value and community benefits from shark-diving tourism in Palau: a sustainable use of reef shark populations. Biol Conserv 145:267–277CrossRefGoogle Scholar
  54. Vignon M, Sasal P, Johnson RL, Galzin R (2010) Impact of shark-feeding tourism on surrounding fish populations off Moorea Island (French Polynesia). Mar Freshw Res 61:163–169CrossRefGoogle Scholar
  55. Weng KC, O’Sullivan JB, Lowe CG, Winkler CE, Blasius ME, Loke-Smith KE, Sippel TJ, Ezcurra JM, Jorgensen S, Murray MJ (2012) Back to the wild: release of juvenile white sharks from the Monterey Bay Aquarium. In: Domeier M (ed) Global perspectives on the biology and life history of the Great White Shark. CRC Press, Boca Raton, pp 419–446CrossRefGoogle Scholar
  56. Williams R, Lusseau D, Hammond PS (2006) Estimating relative energetic costs of human disturbance to killer whales (Orcinus orca). Biol Conserv 133:301–311CrossRefGoogle Scholar
  57. Wintner SP, Cliff G (1999) Age and growth determination of the white shark, Carcharodon carcharias, from the east coast of South Africa. Fish Bull 97:153–169Google Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 2012

Authors and Affiliations

  1. 1.CSIRO Wealth from Oceans FlagshipCSIRO Marine and Atmospheric ResearchHobartAustralia

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