Invasiveness Ranking System for Non-Native Plants of Alaska
Invasiveness Ranking System for Non-Native Plants of Alaska
Invasiveness Ranking System for Non-Native Plants of Alaska
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Current global distribution (0–5) 0Dwarf eelgrass is distributed on sandy and muddy shores <strong>of</strong>sheltered bays from subtropical Vietnam to East Asia, mainlandRussia, and the Sakhalin Islands (Shin and Choi 1998). It hasbeen recently introduced to British Columbia, Oregon, andWashington (Harrison and Bigley 1982, Hitchcock 1969).Extent <strong>of</strong> the species U.S. range and/or occurrence <strong>of</strong>0<strong>for</strong>mal state or provincial listing (0–5)Dwarf eelgrass has been recently introduced to British Columbia,Oregon, and Washington (Harrison and Bigley 1982, Hitchcock1969). This plant is not listed in any state as noxious weed(Invaders Database <strong>System</strong> 2003, USDA 2002).Total <strong>for</strong> Ecological Amplitude and Distribution 8/25Feasibility <strong>of</strong> ControlScoreSeed banks (0–3)UNo records are found concerning seed viability.Vegetative regeneration (0–3) 1Although dwarf eelgrass is capable <strong>of</strong> resprouting from rhizomeswhen storms remove the aboveground biomass, resprouting isusually not very vigorous (Harrison 1979).Level <strong>of</strong> ef<strong>for</strong>t required (0–4)UControl methods <strong>for</strong> dwarf eelgrass have not been investigated.Total <strong>for</strong> Feasibility <strong>of</strong> Control 1/3Total score <strong>for</strong> 4 sections 49/93§B-142
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