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A MESOPHOTIC HOTEL: THE OCTOCORAL BEBRYCE CF GRANDICALYX AS A HOST

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Article e01667 Photo Gallery April 2020 1

A MESOPHOTIC HOTEL: THE OCTOCORAL BEBRYCE

CF GRANDICALYX AS A HOST

Davide Maggioni, Simone Montano, Oliver Voigt, Davide Seveso, and Paolo Galli

© 2020 The Authors. The Bulletin of the Ecological Society of America, published by Wiley Periodicals, Inc., on behalf of the Ecological Society of America. This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

Study Description

Mesophotic coral reefs are ecosystems found below 30 m and down to 150 m depth. Even though interest in these ecosystems has increased in recent years, several aspects still need further attention, including symbiotic associations. During survey of the upper mesophotic reefs in Faafu Atoll, Republic of Maldives, we observed a stable, and likely mutualistic, association between the octocoral Bebryce cf grandicalyx, a sponge belonging to the family Suberitidae, and the hydro-zoan Zanclea timida. Additionally, several other organisms were found dwelling on the octocoral and sponge surface, including amphipods, barnacles, entoprocts, flatworms, brittle stars, and foraminiferans.

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2 Bulletin of the Ecological Society of America, 101(2) Article e01667 Photo Gallery

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Article e01667 Photo Gallery April 2020 3

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4 Bulletin of the Ecological Society of America, 101(2) Article e01667 Photo Gallery

Photo 3. An amphipod observed on the octocoral–sponge surface, likely taking advantage from the increased habitat availability provided by the octocoral–sponge association. Photo credit: Davide Maggioni.

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