Assertion: sea otter's rate | /r/HasProperty | kvitek et al.
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Source sentences:
text: Sea urchins and abalone are depleted quickly because they are highly accessible and relatively immobile, whereas geoducks—a species of bivalve that burrows deeply in soft sediment and can occur in deep water—are depleted at a slower rate (Kvitek and Oliver, 1992; Kvitek et al., 1993; Watson and Smith, 1996; Reidy and Cox, 2013; Hoyt, 2015).