Evaluation and application of methods for biological assessment of streams: summary of papers |
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Authors: | Richard Marchant Richard H Norris Ann Milligan |
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Institution: | (1) Instituto de Ciencias del Mar y Limnología, UNAM, Unidad Mazatlán, P.O. Box 811, Mazatlán, Sinaloa, México;(2) Instituto de Ciencias del Mar y Limnología, UNAM, Unidad Puerto Morelos, P.O. Box 1152, 77580 Puerto Morelos, Quintana Roo, México |
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Abstract: | The false mussel Mytilopsis adamsi, originally described from the Pacific coast of Panama, is reported for the first time as an introduced species in the Urías
estuary and an adjacent shrimp farm, on the Pacific coasts of Mexico. In the 19th century, this species was transported from
the Pacific coast of Panama, reaching the Indo-Pacific Ocean, but it had not been previously reported in other coasts of the
American Pacific. Its recent and irregular presence in this small estuary near shore the Mazatlán harbor and an adjacent shrimp
farm suggests that the species was introduced into the area but it cannot still be considered as a harmful invader. The presence
of the species in the shrimp farm may indicate that it was introduced along with shrimp stocks from Central America, although
its passive transportation to the estuary via ballast water or attached to hulls is not discounted. |
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Keywords: | Mytilopsis adamsi Dreissenidae non-indigenous species Mazatlán Eastern Pacific |
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