Comprehensive marine biological baseline survey data from 24 ports and marinas around New Zealand. Sampling techniques included: videography, diver observations, destructive quadrat sampling, benthic grabs and sleds, 4 different types of baited trap, and sediment cores were taken to sample the resting cysts of dinoflagellates. Also included are the baseline survey data for four ports completed by Golder in 2006/2007 at the Chatham Islands, Stewart Island, Manukau Harbour and Golden Bay.