Graduate Project

 

Limb Loss as an Indicator of Biotic Resistance Against the European Green Crab (Carcinus maenas) in Coos Bay, Oregon Public Deposited

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https://ir.library.oregonstate.edu/concern/graduate_projects/pg15bn801

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  • The presence of predators and competitors can offer biotic resistance against the establishment of non-native species, including the European green crab, Carcinus maenas, (EGC) in the estuary of Coos Bay, Oregon. It has been suggested that limb loss, or autotomy of the EGC will increase in areas that include populations of larger native crabs such as the red rock crab, (Cancer productus) and Dungeness crab (Metacarcinus magister). To test this hypothesis, we analyzed data from a long-term monitoring program collected by researchers from Oregon State University and South Slough National Estuarine Research Reserve (SSNERR). From this data set we examine the patterns of limb loss as functions of size and location and extract indicators of the relative population density of EGC and other native crab species. This manuscript also includes an additional component that evaluates the policy implications of the EGC and offers additional societal and cultural context to further address this wicked problem.
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