• The risks of rogue introductions are likely high under the no-introduction management option; may remain high to moderate under the triploid aquaculture option, particularly among the “have not” stakeholders; and are likely low to moderate under the diploid introduction model. The potential impact of a rogue introduction is high, owing to the substantial ecological impacts that have been documented following the unintended cointroduction of other organisms besides the oyster.

  • The breadth and quality of existing information on oysters and other introduced species are not sufficient to support a comprehensive risk assessment of the three management options.

  • Comprehensive risk assessment is also not practicable, owing to the lack of well-defined and/or conflicting objectives and goals among Chesapeake Bay management agencies and users.



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