Border control for potential aquatic weeds, stage 1 : weed risk model / P.D. Champion and J.S. Clayton
Champion, P.D.
,
Clayton, J.S.
2000
This report is the first stage in a three-stage development of a Border Control Programme for aquatic plants that have the potential to become ecological weeds in New Zealand.
A large number of freshwater aquatic plants have already been introduced a