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UncertaintyWhat are the primary pathways of introduction of invasive and non-native species, and what management actions could limit new introductions or mitigate the impact of invasive species?
ThemeNon-native species
SubthemeManagement
Sources Recommendations for the 2014 Program Amendment from USGS-NW
NPCC 2009 Science Policy Exchange - Panel Discussion
NPCC 2006-3: Research Plan 2006
Criticality Level Priority
Rationale This overarching question also comes from the Program and the ISAB’s non-native report (ISAB 2008-4). Non-native fish species introductions have resulted from both deliberate and unintentional human activity. Introductions of non-native fishes have been initiated for perceived aquaculture benefits, as well as to develop or enhance fisheries, and fill vacant niches as in blocked areas above dams. Although many historical introductions of non-native species were initially made by state and federal agencies, in recent years more have been illegal, unintentional, and not approved by agencies. There is a need for more outreach on species identification, so that non-natives may be recognized more readily in surveys and by the public. Identifying the most likely introduction pathways, both in specific situations (e.g., in a particular water body) and vectors (e.g., the pet trade, on trailers, boat hulls or in ballast) is crucial to preventing and curtailing introductions. This critical uncertainty is derived from the 2006 Research Plan; see Part 2, ISAB/ISRP 2016-1, CU #38, for a discussion of progress made toward addressing this uncertainty.


Projects that address this uncertainty:

(click to view projects at cbfish.org)

ID Title Sponsor Locations Purpose Emphasis Addresses
199101901 Hungry Horse Mitigation/Flathead Lake Restoration and Research, Monitoring and Evaluation (RM&E) Salish and Kootenai Confederated Tribes Mountain Columbia/Flathead Habitat Restoration/Protection Indirectly
200717000 South Fork Snake River Yellowstone Cutthroat Trout Recruitment and Survival Improvement Idaho Department of Fish and Game (IDFG) Upper Snake/Snake Headwaters Habitat Restoration/Protection Indirectly

last updated: Jan 27, 2016