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      Long-term parasitic association between the boring polychaete Polydora bioccipitalis and Mesodesma donacium

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      General Information:

      Citation:
      Riascos, J. , Guzmán, N. , Laudien, J. , Oliva, M. , Heilmayer, O. and Ortlieb, L. (2009): Long-term parasitic association between the boring polychaete Polydora bioccipitalis and Mesodesma donacium , Diseases of Aquatic Organism:, 85 (3), pp. 209-215 . doi: 10.3354/dao02078
      Cite this page as:
      hdl:10013/epic.32777
      DOI:
      10.3354/dao02078
      Official URL:
      10.3354/dao02078
      Contact Email:
      Olaf.Heilmayer@awi.de
      Related Data:

      Abstract:

      Polydora and related genera are common pests for molluscs. Establishing differences between native species and recent invaders provides the basis for understanding their effect and has implications for resource management. P. biocipitalis has been reported as a recently introduced species to the ChileanPeruvian coast, raising concerns about its threat to native bivalve species. In contrast, studies on the infestation of P. bioccipitalis on the surf clam Mesodesma donacium, one of the most important species for shellfisheries, suggest a long-term parasitic relationship. The present study analyses infested (i.e. blistered) fossil shells of M. donacium deposited during the Holocene and Middle Pleistocene epochs and critically reviews evidence supporting the hypothesis of the recent introduction of P. bioccipitalis to the ChileanPeruvian coast. The blistering pattern seen on fossil and recent shells can be considered species-specific for the infestation of M. donacium by P. bioccipitalis. No evidence was actually found on vectors, introduction pathways or distribution range to support the status of P. bioccipitalis as an introduced species. On the contrary, our findings point to along-term association, at least for several hundred thousand years, between M. donacium and P. bioccipitalis.

      Further Details:

      Item Type:
      Article
      Authors:
      Riascos, José ; Guzmán, N. ; Laudien, Jürgen ; Oliva, M. ; Heilmayer, Olaf ; Ortlieb, L.
      Divisions:
      AWI Organizations > Biosciences > Functional Ecology
      Programs:
      Basic Research > Helmholtz Independent Research
      Eprint ID:
      20345
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      Alfred-Wegener-Institut
      Helmholtz-Zentrum für Polar-
      und Meeresforschung
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