Two ecotypes of the common bottlenose dolphin (Tursiops truncatus) occur in New Zealand waters: a widely studied Nationally Endangered coastal ecotype and a little-known oceanic ecotype. Site fidelity and association patterns of the oceanic ecotype, and home range overlap with the coastal ecotype, are examined from photo-identification records collected off northeastern New Zealand between 2005 and 2016.

First Record of Predation on False Killer Whales (Pseudorca crassidens) by Killer Whales (Orcinus orca)
Ingrid N. Visser, Jochen Zaeschmar, Jo Halliday, Annie Abraham,  Phil Ball,  Robert Bradley, Shamus Daly, Tommy Hatwell, Tammy Johnson,  Warren Johnson,  Laura Kay,  Tim Maessen,  Vanessa McKay,  Taira Peters,  Nathan Turner, Basil Umuroa, and Daniela S. Pace

Rare observations of false killer whales (Pseudorca crassidens) cooperatively feeding with common bottlenose dolphins (Tursiops truncatus) in the Hauraki Gulf, New Zealand Jochen R. Zaeschmar, Sarah L. Dwyer and Karen A. Stockin, Coastal-Marine Research Group, Institute of Natural Sciences, Massey University

Occurrence of false killer whales (Pseudorca crassidens) and their association with common bottlenose dolphins (Tursiops truncatus) off northeastern New Zealand
Jocehn R. Zaeschmar, Ingrid N. Visser, Dagmar Fertl,  Sarah L. Dwyer and Anna M. Meissner, Joanne Halliday,  Jo Berghan,  David Donnelly,  Karen A. Stockin.

False Killer Whales (Pseudorca crassidens) in New Zealand Waters by Jochen Zaeschmar