WCT Multi-state Assessment 



February 10,2003 



Table 1. Look-up table for data quality index (DQI) for infomiation entered. 



Table 2. Look-up table for type of source information used. 



This protocol is partitioned into three primary components for conducting this assessment (Refer to assessment 

 fiow chart). First, the historical range that was occupied by WCT at the time of the first European exploration 

 of the Northern Rocky Mountains will be estimated. Second, the current distribution, density and genetic status 

 information for WCT will be developed and displayed on a mapping segment basis. Lastly conservation 

 populations, either as isolated and meta-populations (networked or connected populations - e.g. interbreeding 

 populations) will be identified and population viability risk, genetic risk and disease risk assessments will be 

 made for each of these populations. Risk will be assessed at three levels; 1 ) risk of genetic introgression, 2) risk 

 associated with disease and 3) general population level risk. Risk assessments represent relative detemiinations 

 indicating a higher or lower level of concern. The mapping and risk assessments will be completed for all 

 populations including those associated with lakes (ad-fluvial) that are maintained by natural reproduction. The 

 actual location of lakes will not be shown on the initial maps but can be added at a later date. Cutthroat 

 populations supported or augmented by stocking will not be included as part of this assessment. 



Definitions of terms used for this protocol are provided in italics as they are first used. 



Population mapping unit (segment) - each stream, or occupied segment of stream, will he treated as a 



separate population (stock) mapping unit or segment and connectivity between these segments will 

 determine whether these segments function in terms of an isolate population or as a "metapopulation 

 (connected) ". 



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