Table 1a: Undesirable outcomes of mitten crab populations


levee instability
bank undercutting
increased erosion rates


foul water-intake pipes
terrestrial nuisance / fright

fishery impacts

commercial net fouling and/or damage
recreational pest
* may prey on comm/rec important spp.

parasite host

human health hazard (secondary host for Oriental lung fluke)
*may be detrimental to other mammals and salmonids


unknown impact, assumed ecological disruption

Sources: Halat and Resh 1996, Cohen and Carlton 1997, Veldhuizen and Hieb 1998.

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created 5/4/98