| behavioural effects of tourism on oceanic common dolphins, delphinus sp., in new zealand: the effects of markov analysis variations and current tour operator compliance with regulations. | common dolphins, delphinus sp., are one of the marine mammal species tourism operations in new zealand focus on. while effects of cetacean-watching activities have previously been examined in coastal regions in new zealand, this study is the first to investigate effects of commercial tourism and recreational vessels on common dolphins in an open oceanic habitat. observations from both an independent research vessel and aboard commercial tour vessels operating off the central and east coast bay o ... | 2015 | 25565523 |