Baseline knowledge about the scale of introductions of non indigenous marine species and native biodiversity in the marine environment is essential for the effective management of marine biosecurity risks. Biosecurity New Zealand has implemented a nationwide biological baseline survey and resurvey programme at high risk entry points primarily to determine the current scale of introductions, and in addition to gather information on marine biodiversity at these locations.
As part of the nationwide baseline survey, the port area of Milford Sound was surveyed in late 2006. The survey sampled a wide range of habitat types within Milford using a range of sampling techniques. Sampling effort was distributed in a manner designed to maximise the likelihood of detecting non indigenous marine species.
Marine organisms recovered during the survey are currently being identified.