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Diatom invasion in the antarctic hexactinellid sponge Scolymastra joubini

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Abstract

Sponges often host large amounts of symbionts, mainly represented by cyanobacteria and dinoflagellates. Recent findings show a widespread presence of symbiotic diatoms living inside antarctic demosponges. In this paper, the invasion by large populations of the diatom Melosira sp. into specimens of the hexactinellid sponge Scolymastra joubini is reported. SEM analyses support the hypothesis that the embedded living diatoms have a negative impact on sponge tissues, leading to degenerative processes.

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Authors and Affiliations

  1. Dipartimento per lo Studio del Territorio e delle sue Risorse, University of Genoa, C.30 Europa, 26, 16132 Genoa, Italy e-mail: zoologia@unige.it Tel.: +39-010-3538034, Fax: +39-010-3538209, , , , , , IT

    Carlo Cerrano, Attilio Arillo, Barbara Calcinai, Riccardo Cattaneo-Vietti & Michele Sarà

  2. Istituto di Scienze del Mare, University of Ancona, Via Brecce Bianche, 60181 Ancona, Italy, , , , , , IT

    Giorgio Bavestrello & Cecilia Totti

  3. Istituto di Biochimica, Università di Urbino, I-60118 Urbino, Italy, , , , , , IT

    Antonella Penna

Authors
  1. Carlo Cerrano
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  2. Attilio Arillo
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  3. Giorgio Bavestrello
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  4. Barbara Calcinai
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  5. Riccardo Cattaneo-Vietti
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  6. Antonella Penna
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  7. Michele Sarà
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  8. Cecilia Totti
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Additional information

Received: 1 December 1999 / Accepted: 20 February 2000

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Cerrano, C., Arillo, A., Bavestrello, G. et al. Diatom invasion in the antarctic hexactinellid sponge Scolymastra joubini . Polar Biol 23, 441–444 (2000). https://doi.org/10.1007/s003000050466

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  • DOI: https://doi.org/10.1007/s003000050466

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