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One
of the problems related to the presence of the golden mussel is the quick
change in the benthic community, favoring some species not frequent in
the environment, as well as displacing other species, like native mollusks(1).
This fact promotes an environment with uniform flora and fauna. Before
the introduction of the golden mussel there were three gastropod species
commonly found at Bagliardi Beach, Berisso, Buenos Aires (the first place
in America where the golden mussel was found)(2):
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Strips with the settlement of gold mussels on the stones of the seaside Bagliardi beach, Berisso, Argentina, shore of the Río de la Plata, where his presence was cited for the first time in America. Density in the strips approximately 80,000 ind.m2. |
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Heleobia piscium (d'Orbigny), Chilina fluminea (Maton), and Gundlachia concentrica (d'Orbigny). After the introduction of the invading bivalve, the presence of Ch. fluminea and G. concentrica is accidental. Another example of the impact on the local mollusk fauna is the settling of the golden mussel on native bivalves (naiads) and on another invading bivalve, Corbicula fluminea. |
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Another kind of
impact is observed at Guaíba Basin (Brazil), where the golden mussel
prevents the normal development of marsh plants like rushes. |
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(1) MARTIN, S. & G.DARRIGRAN. 1994. Limnoperna fortunei (Dunker, 1857) en el Balneario Bagliardi, Río de la Plata. Alteración en la composición de la malacofauna litoral. Tankay, 1:164-166. (2) DARRIGRAN,G.; S.M. MARTIN; B GULLO & L. ARMENDARIZ. 1998. Macroinvertebrados associated to the byssus of Limnoperna fortunei (Dunker, 1857) (Pelecipoda, Mytilidae). Río de la Plata, Argentina. Hydrobiología, 367:223-230. Bélgica |
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