Macroalgal assemblages associated to Mediterranean rhodolith beds

The present paper aims at contributing to the knowledge of rhodolith beds by describing the associated macroalgal assemblages of two beds in the western Mediterranean Sea: Gorgona Island in the Tuscan Archipelago National Park and Capo Carbonara Marine Protected Area in the southern Sardinia. Patter...

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Bibliographic Details
Published in:Aquatic botany 2024-09, Vol.194, p.103785, Article 103785
Main Authors: Piazzi, L., Basso, D., Falace, A., Kaleb, S., Ria, M., Cecchi, E.
Format: Article
Language:English
Subjects:
Biodiversity
Italy
Maërl
Seaweeds
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Summary:The present paper aims at contributing to the knowledge of rhodolith beds by describing the associated macroalgal assemblages of two beds in the western Mediterranean Sea: Gorgona Island in the Tuscan Archipelago National Park and Capo Carbonara Marine Protected Area in the southern Sardinia. Patterns of biodiversity and spatial variability were investigated through a multifactorial sampling design. A total of 84 macroalgal species was identified, 17 Heterokontophyta, 7 Chlorophyta, 1 Prasinodermatophyta and 59 Rhodophyta. Significant differences between beds were detected and the main species characterizing the two beds were highlighted. The mean number of species per sample was quite low and beta diversity high compared to most Mediterranean macroalgal assemblages. •The associated macroalgae of two Mediterranean rhodolith beds were described.•Patterns of biodiversity and spatial variability were investigated.•Eight Chlorophyta, 17 Heterokontophyta, and 59 Rhodophyta were identified.•Significant differences between beds were detected.•The beta diversity was higher than in most Mediterranean macroalgal assemblages.
ISSN:0304-3770
1879-1522
DOI:10.1016/j.aquabot.2024.103785