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   Salvinia molesta (aquatic plant, herb)
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    Details of this species in New Zealand
    Status: Alien
    Invasiveness: Invasive
    Occurrence: Established
    Source: Champion, Clayton and Rowe, 2002
    Arrival Date:
    Introduction:
    Species Notes for this Location:
    S. molesta has become naturalised (mostly in the North Island) but has been eradicated from most sites.
    Management Notes for this Location:
    Champion and Clayton (2000; 2001a, in Champion, Clayton and Rowe, 2002) designed an aquatic plant weed risk assessment model for New Zealand based on invasiveness level, potential distribution and potential impact; using this model S. molesta was rated 57 (or the 16th highest priority of a total of 36 species rated). The Biosecurity Act (1993) allows for the development of Pest Management Strategies (PMS) at either a central government level or a regional level. These are known as National Pest Management Strategies (NPMS) and Regional Pest Management Strategies (RPMS), respectively. Despite the apparent moderate rating of S. molesta it is among only five weeds nominated by MAF for the development of an NPMS. Two other aquatic weeds have also been targeted by MAF: water hyacinth and water lettuce (Pistia stratiotes).
    Location Notes:
    Last Modified: 6/01/2005 2:34:21 p.m.
ISSG Landcare Research NBII IUCN University of Auckland The Global Invasive Species Database is managed by the Invasive Species Specialist Group (ISSG) of the IUCN Species Survival Commission. It was developed as part of the global initiative on invasive species led by the Global Invasive Species Programme (GISP) and is supported through partnerships with the National Biological Information Infrastructure, Manaaki Whenua-Landcare Research and the University of Auckland. Conditions of use.