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4.8 Piscicide ToolPiscicide
Parameter Description: The NetMap Piscicide tool is a reach scale model which is used to identify the best stream reaches for piscicide treatment based on the intrinsic potential (IP) of a species that is targeted for conservation, an invasive species and the presence of barriers.
Data Type: reach attribute
Field Name: Piscicide; Common Name: Piscicide
Units: Probability
NetMap Module/Tool: Aquatic Habitats/Piscicide Model
Model Description: The NetMap Piscicide tool is a reach scale model which can be used to identify the best candidate reaches for piscicide treatment based on the intrinsic potential (IP) of a species that is targeted for conservation, an invasive species and the presence of barriers (Figure 1). If there is no habitat potential, no nonnative population, and no fish barriers, the potential for using a piscicide is considered null (0). However, if these conditions are met, the piscicide potential is calculated to the IP of the conservation species. Users must determine whether other factors, for example, the presence of other species, land use conditions, or fishing exploitation should be considered in the decision to use a piscicide.
 Figure 1. Decision-making hierFieldhy in the NetMap piscicide model.
Figure 1. Decision-making hierFieldhy in the NetMap piscicide model.
Inputs to the Piscicide tool include reaches with attributes for the intrinsic potential score for the target species, e.g., bull trout, the presence or absence of an invasive species, and the presence or absence of barriers to fish, where presence = 1 and absence = 0 (Figure 2). The user can select a viable IP threshold for target species persistence or leave the threshold as 0 which allows all IP values to be used. The presence/absence of invasive species can be input as a reach attribute field or selected as a constant from the drop down list. Similarly, the presence/absence of barriers can be selected from the list of reach attributes, if present or selected as a constant (Figure 2).
 Figure 2. Interface for the NetMap Piscicide model. After calculations are complete, a map of the reach attribute “PISCICIDE” is automatically generated (Figure 3).
 Figure 3. Example of mapped outputs of the Piscicide model. The red and yellow colors indicate good candidates for piscicide treatment.
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