Write about the following risk assessment methods: FISK (fish risk assessment), WRA (Weed risk assessment) for freshwater fish, GABLIS (German Austrian Black List Information System). Each method should consist of: general information for each of them (a little); the ranking/scoring system they use (i.e. the score scale); the standard for their scoring system (if any); any advantages and disadvantages of each method (if any); the relationship between those method, for example, FISK is adapted from WRA etc. (not necessary, only add if possible/enough time). For FISK method, if possible, please discuss a little bit about the non-calibrated (Copp, 2005) version and calibrated (Copp, 2009) version.