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Criteria
Likelihood of transfer Not likely, due to extensive testing and surveillance and strict protocols to prevent transfer Low, several management practices and disease testing and surveillance is done Moderate, some risk reduction measures, but testing is incomplete (i.e. not on all bait species) High, no routine testing of bait species, not able to be detected visually
Prevalence in bait supply Has not been found in MN bait supply Low prevalence in bait supply, 1-33% Moderate prevalence in bait supply, 34-66% High prevalence in bait supply, 67-100%
Colonization potential Not likely, organism will not be established due to climate mismatch, life cycle limitation or lack of suitable hosts organism has a low probability of becoming established on the basis of climatic, life cycle, or host requirements Organism has a medium probability of becoming established on the basis of climatic, life cycle, or host requirements Organism has a high probability of becoming established on the basis of climatic, life cycle, or host requirements, or has been introduced in some areas of MN
Current distribution in MN Common, frequently encountered, widespread Fairly common, either widespread but not abundant in any location or abundant in some areas Uncommon, not widespread or abundant in any location Not Detected, surveys have been conducted but the organism has never been found
Economic impact No known impact on any game species, fishery, tourism or species of interest Mild impact on economic contribution of game species, fishery, tourism or species of interest Moderate impact on economic contribution of game species, fishery, tourism or species of interest Severe impact on economic contribution of game species, fishery, tourism, or species of interest
Ecological impact if established No or negligible impact on population, community, or ecosystem ecology Mild ecological impact (e.g. minor shift in food web) Moderate ecological impact (e.g. some habitat degradation, some food web impact, etc.) Severe ecological impact (e.g. fishery collapse, cascading effects, habitat degradation, etc.)
Host species No known hosts in MN or single non-game, non-threatened & endangered (T&E) or management-relevant species affected Single game, T&E, or management-relevant species affected More than one game, T&E or management-relevant species affected Several game, T&E or management-relevant species greatly affected (i.e. high mortality)