Recent Observations on Colonization

Observation No. 1: Account of the appearance of Didemnum vexillum in New Zealand in 2001 and 2002

This report includes information on the infestation of the Steel Mariner barge by D. vexillum; images of the species; location maps; a report by P. Mather (Kott) on the identification of the didemnid; a survey of the didemnid on the barge and its spread to the seabed beneath it; and the potential risks posed by the spread of the species.

Source

Coutts, A.D.M., 2002, A biosecurity investigation of a barge in the Marlborough Sounds (New Zealand): Cawthron Institute Report 744, 68 p. (PDF format)