The pre-screening toolkits for identifying invasive non-native species that are available on this page are based on VisualBasic (VB) code from the original Weed Risk Assessment (WRA) toolkit (Pheloung et al. 1999). We are grateful to P.C. Pheloung, P.A. Williams and S.R. Halloy for providing an open version of their original WRA toolkit, with permission to adapt the original code for the VB driven toolkits developed at Cefas.
These toolkits are Crown copyright but may be downloaded for free, and freely distributed provided this notice is retained: No warranty, expressed or implied, is made and users should satisfy themselves as to the applicability of the results in any given circumstance.
Freshwater Fish Invasiveness Scoring Kit (FISK) • Marine Fish Invasiveness Scoring Kit (MFISK) • Marine Invertebrate Invasiveness Scoring Kit (MI-ISK) • Freshwater Invertebrate Invasiveness Scoring Kit (FI-ISK) • Amphibian Invasiveness Scoring Kit (AmphISK)