Species Regional Summary
Hediste diadroma
Alaskan panhandle to N. of Puget Sound ( NEP-III )

Invasion History Vectors Impacts References

Invasion

Invasion Description

1st Records: WA/Skagit River (7/1/2012, Tosuji and Furota 2016, 48°17?N, 122°23?W); Camano Island/WA/Triangle Cove, Puget Sound (7/1/2012, Tosuji and Furota 2016, 48°12?N, 122°29?W); WA/Little Skookum Inlet, Hood Canal (7/2/2012, Tosuji and Furota 2016, 47°09?N, 123°03?W)

Geographic Extent

WA/Skagit River (7/1/2012, Tosuji and Furota 2016, 48°17?N, 122°23?W); Camano Island/WA/Triangle Cove, Puget Sound (7/1/2012, Tosuji and Furota 2016, 48°12?N, 122°29?W); WA/Little Skookum Inlet, Hood Canal (7/2/2012, Tosuji and Furota 2016, 47°09?N, 123°03?W)

Vectors

Level Vector
Alternate Ballast Water
Alternate Hull Fouling

Regional Impacts

Ecological ImpactCompetition
The native Hediste limnicola appears to have been displaced from higher-salinity intertidal habitats, but continues to be dominant in the inner oligohaline-fresh water parts of estuaries (Tosuji and Furota 2016).
 

References

Full Reference List for Hediste diadroma

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