The invadingver prawn, Microchip cf. rosenbergii, is one of the most culture freshwater prawns in the world and has been introduced into more than 40 countries. In some countries, this prawn is considered an invasive species that requires close monitoring. Recent changes in the taxonomy of this species & x28;separation of M. rosenbergii and M. dacqueti& x29; require a re-evaluation of introduced taxa. In this work, molecular analyses were used to determine which of these two species was introduced into Brazil and to establish the geographic origin of the introduced populations that have invaded Amazonian coastal waters. The species introduced into Brazil was M. dacqueti through two introduction events involving prawns originating from Vietnam and either Bangladesh or Thailand. These origins differ from historical reports of the introductions and underline the need to confirm the origin of other exotic populations around the world.
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KEYWORDS
amazonian analyses around bangladesh been big brazil changes close coastal confirm considered countries culture dacqueti dacquetithrough determine differ either establish events exotic freshwater geographic giant has have historical indonesia introduced introduction introductions invaded invadingver invasive involving lobster molecular monitoring more most need ofm one origin originating origins other populations prawn prawnmicrochipcfrosenbergii prawns re-evaluation recent reports require requires river rosenbergiiandm separation shrimp some species taxa taxonomy thailand than two underline used vietnam was wasm waters were which work world
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