Variability patterns of epibenthic microalgae in eastern Tunisian coasts
Epiphytic microalgae were monitored on various substrates of seagrass and macroalgae and in the water column for one year (from March 2013 to March 2014) in Oued Lafrann along the eastern coast of Chebba (Tunisia) with a focus on the distribution patterns of the epibenthic toxic dinoflagellates Ostr...
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Consejo Superior de Investigaciones Científicas
2017-12-01
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doaj-31b8b207647547edabf4a02a34aa07352021-05-05T13:49:33ZengConsejo Superior de Investigaciones CientíficasScientia Marina0214-83581886-81342017-12-0181448749810.3989/scimar.04651.17A1700Variability patterns of epibenthic microalgae in eastern Tunisian coastsMalika Moncer0https://orcid.org/0000-0002-3344-6039Asma Hamza1https://orcid.org/0000-0001-8228-012XWafa Feki-Sahnoun2https://orcid.org/0000-0003-1688-2071Lotfi Mabrouk3https://orcid.org/0000-0001-8356-6058Malika Bel Hassen4https://orcid.org/0000-0001-7412-9948Faculté des Sciences de Sfax - Institut National des Sciences et des Technologie de la Mer de SfaxInstitut National des Sciences et des Technologie de la Mer de SfaxInstitut National des Sciences et des Technologie de la Mer de SfaxFaculté des Sciences de Gafsa, Campus Universitaire Sidi Ahmed ZarrougInstitut National des Sciences et des Technologie de la Mer de SalammbôEpiphytic microalgae were monitored on various substrates of seagrass and macroalgae and in the water column for one year (from March 2013 to March 2014) in Oued Lafrann along the eastern coast of Chebba (Tunisia) with a focus on the distribution patterns of the epibenthic toxic dinoflagellates Ostreopsis cf. ovata, Prorocentrum lima and Coolia monotis. Microalgae assemblages were dominated by diatoms and dinoflagellates both in the water column and on vegetation. High concentrations of epiphytic toxic and potentially toxic dinoflagellates were preferentially hosted by Posidonia leaves, mainly in the apical and middle regions of the leaves, and P. lima was the dominant species. A significant positive correlation was found between P. lima concentrations on Posidonia and in the water column, suggesting that macrophytes should be sampled in the framework of harmful algal species monitoring. Ostreopsis cf. ovata, exhibited low concentrations and was mainly present on the inner surface of the Posidonia leaf, whereas P. lima was mainly present on the outer surface of the leaf, suggesting a likely space competition.http://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/1732prorocentrum limaostreopsis cf. ovatacoolia monotisprorocentrum micansmagnoliophytesmacroalgae |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Malika Moncer Asma Hamza Wafa Feki-Sahnoun Lotfi Mabrouk Malika Bel Hassen |
spellingShingle |
Malika Moncer Asma Hamza Wafa Feki-Sahnoun Lotfi Mabrouk Malika Bel Hassen Variability patterns of epibenthic microalgae in eastern Tunisian coasts Scientia Marina prorocentrum lima ostreopsis cf. ovata coolia monotis prorocentrum micans magnoliophytes macroalgae |
author_facet |
Malika Moncer Asma Hamza Wafa Feki-Sahnoun Lotfi Mabrouk Malika Bel Hassen |
author_sort |
Malika Moncer |
title |
Variability patterns of epibenthic microalgae in eastern Tunisian coasts |
title_short |
Variability patterns of epibenthic microalgae in eastern Tunisian coasts |
title_full |
Variability patterns of epibenthic microalgae in eastern Tunisian coasts |
title_fullStr |
Variability patterns of epibenthic microalgae in eastern Tunisian coasts |
title_full_unstemmed |
Variability patterns of epibenthic microalgae in eastern Tunisian coasts |
title_sort |
variability patterns of epibenthic microalgae in eastern tunisian coasts |
publisher |
Consejo Superior de Investigaciones Científicas |
series |
Scientia Marina |
issn |
0214-8358 1886-8134 |
publishDate |
2017-12-01 |
description |
Epiphytic microalgae were monitored on various substrates of seagrass and macroalgae and in the water column for one year (from March 2013 to March 2014) in Oued Lafrann along the eastern coast of Chebba (Tunisia) with a focus on the distribution patterns of the epibenthic toxic dinoflagellates Ostreopsis cf. ovata, Prorocentrum lima and Coolia monotis. Microalgae assemblages were dominated by diatoms and dinoflagellates both in the water column and on vegetation. High concentrations of epiphytic toxic and potentially toxic dinoflagellates were preferentially hosted by Posidonia leaves, mainly in the apical and middle regions of the leaves, and P. lima was the dominant species. A significant positive correlation was found between P. lima concentrations on Posidonia and in the water column, suggesting that macrophytes should be sampled in the framework of harmful algal species monitoring. Ostreopsis cf. ovata, exhibited low concentrations and was mainly present on the inner surface of the Posidonia leaf, whereas P. lima was mainly present on the outer surface of the leaf, suggesting a likely space competition. |
topic |
prorocentrum lima ostreopsis cf. ovata coolia monotis prorocentrum micans magnoliophytes macroalgae |
url |
http://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/1732 |
work_keys_str_mv |
AT malikamoncer variabilitypatternsofepibenthicmicroalgaeineasterntunisiancoasts AT asmahamza variabilitypatternsofepibenthicmicroalgaeineasterntunisiancoasts AT wafafekisahnoun variabilitypatternsofepibenthicmicroalgaeineasterntunisiancoasts AT lotfimabrouk variabilitypatternsofepibenthicmicroalgaeineasterntunisiancoasts AT malikabelhassen variabilitypatternsofepibenthicmicroalgaeineasterntunisiancoasts |
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1721461280744669184 |