Eriocher sinensis Scorecard

Species:  Eriocher sinensis

Common Name:  Chinese mitten crab

Scorecard created on
Last Updated on

Results

Impact Total:14 / 35Impact = ( Spread + Damage - Benefit )

Ability to Respond Total:14 / 25Ability to Respond = ( Ease of Response + Tools in Place )

Confidence:High

Confidence Notes:

Impact

SpreadNotesScore
Spread RateSpreads efficiently by migration of juveniles but must breed in marine/estuary environments.3
Spread AmountJuvenile migration is limited to several hundred miles upstream.3
DamageNotesScore
EcologicalSerious threat to ecosystems along the West Coast; they eat salmon, trout and sturgeon eggs; omnivorous.4
AgriculturalDamage to rice crops, fishing industry3
Infrastructure2
CulturalNo known damage0
HealthSecondary host to flukes1
BenefitNotesScore
EcologicalAs a food source for other game fish1
AgriculturalNo known benefits0
InfrastructureNo known benefits0
CulturalAs a food source/ delicacy1
HealthNo known benefits0
Total14

Ability to Respond

Ease of ResponseNotesScore
DetectionEasy to identify adults via characteristic 'mitten' claws.5
ControlBallast water regulations help control spread, otherwise adults/juveniles must be trapped.3
Tools in PlaceNotesScore
EntryProhibited species, included in Lacey Act3
ControlBallast water regulations help control spread, otherwise adults/juveniles must be trapped1
OutreachANSTF, ANSIS, Aquatic Hitch Hikers2
Total14

References

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