Novel in situ observations of asexual reproduction in the carpet sea anemone, Stichodactyla mertensii (Stichodactylidae, Actiniaria)

Merten’s carpet sea anemone, Stichodactyla mertensii Brandt, 1835, is the largest known sea anemone species in the world, regularly exceeding one meter in oral disc diameter. A tropical species from the Indo-Pacific, S. mertensii drapes prominently over coral reef substrates and is a common host to...

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Main Authors: Morgan F. Bennett-Smith, Micaela S. Justo, Michael L. Berumen, Raquel Peixoto, Benjamin M. Titus
Format: Article
Language:English
Published: Pensoft Publishers 2022-05-01
Series:ZooKeys
Online Access:https://zookeys.pensoft.net/article/84415/download/pdf/
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author Morgan F. Bennett-Smith
Micaela S. Justo
Michael L. Berumen
Raquel Peixoto
Benjamin M. Titus
author_facet Morgan F. Bennett-Smith
Micaela S. Justo
Michael L. Berumen
Raquel Peixoto
Benjamin M. Titus
author_sort Morgan F. Bennett-Smith
collection DOAJ
description Merten’s carpet sea anemone, Stichodactyla mertensii Brandt, 1835, is the largest known sea anemone species in the world, regularly exceeding one meter in oral disc diameter. A tropical species from the Indo-Pacific, S. mertensii drapes prominently over coral reef substrates and is a common host to numerous species of clownfishes and other symbionts throughout its range, which extends from the Red Sea through the Central Pacific Ocean. Long thought to reproduce via sexual reproduction only, recent genetic evidence suggests it may rarely reproduce asexually as well, although this process had never been confirmed through direct observation and the mechanism was yet to be described. Here, we directly observed and documented in situ asexual fragmentation via budding, in real time, by a Red Sea S. mertensii in a turbid inshore reef environment. While asexual reproduction is not unusual in sea anemones as a group, it is typically expected to be uncommon for large-bodied species. Herein, we describe S. mertensii fragmentation, provide high resolution images of the event from the Saudi Arabian coastline at multiple time points, and confirm asexual reproduction for this species.
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spelling doaj.art-11292fe1fc6249c0b0d16147a3d950f72022-12-22T00:22:27ZengPensoft PublishersZooKeys1313-29702022-05-011103576310.3897/zookeys.1103.8441584415Novel in situ observations of asexual reproduction in the carpet sea anemone, Stichodactyla mertensii (Stichodactylidae, Actiniaria)Morgan F. Bennett-Smith0Micaela S. Justo1Michael L. Berumen2Raquel Peixoto3Benjamin M. Titus4King Abdullah University of Science and TechnologyKing Abdullah University of Science and TechnologyKing Abdullah University of Science and TechnologyKing Abdullah University of Science and TechnologyDauphin Island Sea LabMerten’s carpet sea anemone, Stichodactyla mertensii Brandt, 1835, is the largest known sea anemone species in the world, regularly exceeding one meter in oral disc diameter. A tropical species from the Indo-Pacific, S. mertensii drapes prominently over coral reef substrates and is a common host to numerous species of clownfishes and other symbionts throughout its range, which extends from the Red Sea through the Central Pacific Ocean. Long thought to reproduce via sexual reproduction only, recent genetic evidence suggests it may rarely reproduce asexually as well, although this process had never been confirmed through direct observation and the mechanism was yet to be described. Here, we directly observed and documented in situ asexual fragmentation via budding, in real time, by a Red Sea S. mertensii in a turbid inshore reef environment. While asexual reproduction is not unusual in sea anemones as a group, it is typically expected to be uncommon for large-bodied species. Herein, we describe S. mertensii fragmentation, provide high resolution images of the event from the Saudi Arabian coastline at multiple time points, and confirm asexual reproduction for this species.https://zookeys.pensoft.net/article/84415/download/pdf/
spellingShingle Morgan F. Bennett-Smith
Micaela S. Justo
Michael L. Berumen
Raquel Peixoto
Benjamin M. Titus
Novel in situ observations of asexual reproduction in the carpet sea anemone, Stichodactyla mertensii (Stichodactylidae, Actiniaria)
ZooKeys
title Novel in situ observations of asexual reproduction in the carpet sea anemone, Stichodactyla mertensii (Stichodactylidae, Actiniaria)
title_full Novel in situ observations of asexual reproduction in the carpet sea anemone, Stichodactyla mertensii (Stichodactylidae, Actiniaria)
title_fullStr Novel in situ observations of asexual reproduction in the carpet sea anemone, Stichodactyla mertensii (Stichodactylidae, Actiniaria)
title_full_unstemmed Novel in situ observations of asexual reproduction in the carpet sea anemone, Stichodactyla mertensii (Stichodactylidae, Actiniaria)
title_short Novel in situ observations of asexual reproduction in the carpet sea anemone, Stichodactyla mertensii (Stichodactylidae, Actiniaria)
title_sort novel in situ observations of asexual reproduction in the carpet sea anemone stichodactyla mertensii stichodactylidae actiniaria
url https://zookeys.pensoft.net/article/84415/download/pdf/
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