Increased use levels, effort, and spatial distribution of tourists swimming with dwarf minke whales at the Great Barrier Reef

• Published in: Tourism in Marine Environments
• Main Authors: Curnock, Matthew I., Birtles, R. Alastair, Valentine, Peter S.
• Format: Article in Journal/Newspaper
• Language: unknown
• Published: Cognizant Communication Corporation 2013
• Subjects: Balaenoptera acutorostrata; minke whale
• Online Access: https://researchonline.jcu.edu.au/24944/1/CurnockEtAl2013_SwimWithMinkesTiMEpaperResOnline_11Feb13.pdf; https://researchonline.jcu.edu.au/24944/3/24944_Curnock_et_al_2013.pdf

A permitted tourism industry has developed at the Great Barrier Reef based on swimming with dwarf minke whales (Balaenoptera acutorostrata subsp.). Using sightings reported by tourism operators and vessel effort data, this study found a 91% increase in the number of whale encounters over six seasons (2003-2008), and a small number of encounter ‘hotspots’ accounted for a substantial proportion of these encounters. Analysis of industry effort data revealed that a shift in effort among existing permitted operators was the most likely cause of the increase in whale encounters. Although the number of permitted operators has remained capped since permits were introduced in 2003, this study found substantial latent capacity in these permits. Further research is needed to identify social carrying capacity related issues for high use areas targeted for minke whale encounters, and it is recommended that the number of permits not be increased while the potential for cumulative impacts of tourist interactions on whales remains unknown.