Megabenthic assemblages from South Adriatic marine mesophotic environments

Abstract Mesophotic habitats in the Mediterranean Sea host rich and diverse benthic assemblages, dominated by invertebrates alongside sciaphilous algae. Recent findings suggest that certain mesophotic bioconstructions built by invertebrates, while classified under the coralligenous definition, diffe...

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Main Authors: Guadalupe Giménez, Cataldo Pierri, Giuseppe Corriero, Giorgio Bavestrello, Jacopo Giampaoletti, Maria Mercurio, Carlotta Nonnis Marzano, Caterina Longo
Format: Article
Language:English
Published: Nature Portfolio 2025-08-01
Series:Scientific Reports
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Online Access:https://doi.org/10.1038/s41598-025-15386-x
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author Guadalupe Giménez
Cataldo Pierri
Giuseppe Corriero
Giorgio Bavestrello
Jacopo Giampaoletti
Maria Mercurio
Carlotta Nonnis Marzano
Caterina Longo
author_facet Guadalupe Giménez
Cataldo Pierri
Giuseppe Corriero
Giorgio Bavestrello
Jacopo Giampaoletti
Maria Mercurio
Carlotta Nonnis Marzano
Caterina Longo
author_sort Guadalupe Giménez
collection DOAJ
description Abstract Mesophotic habitats in the Mediterranean Sea host rich and diverse benthic assemblages, dominated by invertebrates alongside sciaphilous algae. Recent findings suggest that certain mesophotic bioconstructions built by invertebrates, while classified under the coralligenous definition, differ significantly in their taxonomic composition. This study investigates diversity patterns in megabenthic assemblages associated with algal and invertebrate bioconstructions along the Apulian coast, using α- and β-diversity metrics derived from an image analysis approach. Across 360 analyzed frames, 81 taxa were identified, revealing distinct coverage patterns that separate mesophotic algal assemblages from both coral and oyster bioconstructions. Morphological seabed features and primary bioconstructors played a key role in shaping the associated communities. These findings highlight the substantial differences between upper and deeper megabenthic assemblages and emphasize the ecological importance of mesophotic bioconstructions as biodiversity hotspots, underscoring their role in supporting Mediterranean marine ecosystems and the need for targeted conservation strategies.
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spelling doaj-art-7e84f00cd98a47bdb41fb7eb3fb2a9682025-08-20T04:01:52ZengNature PortfolioScientific Reports2045-23222025-08-0115111210.1038/s41598-025-15386-xMegabenthic assemblages from South Adriatic marine mesophotic environmentsGuadalupe Giménez0Cataldo Pierri1Giuseppe Corriero2Giorgio Bavestrello3Jacopo Giampaoletti4Maria Mercurio5Carlotta Nonnis Marzano6Caterina Longo7Department of Biosciences, Biotechnologies and Environment, University of Bari Aldo MoroDepartment of Biosciences, Biotechnologies and Environment, University of Bari Aldo MoroDepartment of Biosciences, Biotechnologies and Environment, University of Bari Aldo MoroDepartment of Earth, Environmental and Life Sciences (DISTAV), University of GenovaNational Research Council - Institute for the Study of Anthropic Impact and Sustainability in the Marine Environment, CNR-IASDepartment of Biosciences, Biotechnologies and Environment, University of Bari Aldo MoroDepartment of Biosciences, Biotechnologies and Environment, University of Bari Aldo MoroDepartment of Biosciences, Biotechnologies and Environment, University of Bari Aldo MoroAbstract Mesophotic habitats in the Mediterranean Sea host rich and diverse benthic assemblages, dominated by invertebrates alongside sciaphilous algae. Recent findings suggest that certain mesophotic bioconstructions built by invertebrates, while classified under the coralligenous definition, differ significantly in their taxonomic composition. This study investigates diversity patterns in megabenthic assemblages associated with algal and invertebrate bioconstructions along the Apulian coast, using α- and β-diversity metrics derived from an image analysis approach. Across 360 analyzed frames, 81 taxa were identified, revealing distinct coverage patterns that separate mesophotic algal assemblages from both coral and oyster bioconstructions. Morphological seabed features and primary bioconstructors played a key role in shaping the associated communities. These findings highlight the substantial differences between upper and deeper megabenthic assemblages and emphasize the ecological importance of mesophotic bioconstructions as biodiversity hotspots, underscoring their role in supporting Mediterranean marine ecosystems and the need for targeted conservation strategies.https://doi.org/10.1038/s41598-025-15386-xAnimal bioconstructionsBenthic coverCoralligenousMediterraneanMesophotic
spellingShingle Guadalupe Giménez
Cataldo Pierri
Giuseppe Corriero
Giorgio Bavestrello
Jacopo Giampaoletti
Maria Mercurio
Carlotta Nonnis Marzano
Caterina Longo
Megabenthic assemblages from South Adriatic marine mesophotic environments
Scientific Reports
Animal bioconstructions
Benthic cover
Coralligenous
Mediterranean
Mesophotic
title Megabenthic assemblages from South Adriatic marine mesophotic environments
title_full Megabenthic assemblages from South Adriatic marine mesophotic environments
title_fullStr Megabenthic assemblages from South Adriatic marine mesophotic environments
title_full_unstemmed Megabenthic assemblages from South Adriatic marine mesophotic environments
title_short Megabenthic assemblages from South Adriatic marine mesophotic environments
title_sort megabenthic assemblages from south adriatic marine mesophotic environments
topic Animal bioconstructions
Benthic cover
Coralligenous
Mediterranean
Mesophotic
url https://doi.org/10.1038/s41598-025-15386-x
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