In a global scenario of increasing climate uncertainty, characterized by global warming and biodiversity loss at alarming rates, it is essential to recognize and value the natural ecosystems upon which our existence depends. This study aims to expand the knowledge regarding the Cymodocea nodosa meadow in the Porticciolo di Torrette, a pioneer species resistant to environmental stress. Sampling was conducted on three dates between June and July 2025 across three discontinuous patches of the meadow, building upon the initial monitoring carried out in 2024. To this end, the plant's structural parameters were investigated alongside the associated algal and animal communities, integrating traditional methods with innovative techniques (DNA metabarcoding). The results concerning structural parameters and the associated communities—despite slight variations—align with current literature and complement existing pioneer studies on metabarcoding. Furthermore, the meadow appears to be in a phase of active expansion, despite the numerous impacts it faces, such as water pollution, anchoring, and eutrophication. The loss of habitat leads to a decline in ecosystem services, such as coastal protection, ecosystem engineering, and climate regulation. Therefore, it is crucial to conduct in-depth studies on species that could play a leading role in a future marked by an increasingly evident climate crisis.
In uno scenario globale di crescente incertezza climatica, tra riscaldamento globale e perdita di biodiversità a ritmi allarmanti, è necessario riconoscere e valorizzare gli ecosistemi naturali, dai quali dipendiamo per la nostra esistenza. Il presente studio vuole aumentare le conoscenze sulla prateria di Cymodocea nodosa del Porticciolo di Torrette, una specie pioniera e resistente agli stress ambientali. Il campionamento si è condotto in 3 date, tra giugno e luglio 2025, in 3 macchie discontinue della prateria, integrando il primo monitoraggio condotto nel 2024. Per questo scopo, sono stati indagati i parametri strutturali della pianta, nonché la comunità vegetale e animale associata, integrando metodi tradizionali e innovativi (DNA-metabarcoding). I risultati dei parametri strutturali e della comunità animale e vegetale associata, con leggere variazioni, sono in linea con la letteratura corrente, integrando anche studi già pionieri sul metabarcoding. La prateria, inoltre, si rivela essere in fase di espansione attiva, nonostante i numerosi impatti che subisce (inquinamento dell’acqua, ancoraggio, eutrofizzazione). La perdita di habitat porta a una perdita di servizi ecosistemici, come la protezione delle coste, la funzione di ingegnere ecosistemico o la regolazione del clima, per questo è necessario studiare a fondo le specie che potrebbero, in futuro, essere protagoniste in uno scenario di crisi climatica sempre più evidente.
Prateria di Cymodocea nodosa del Porticciolo di Torrette (Ancona), Mare Adriatico centrale: parametri strutturali e biodiversità associata
MARCHIOTTI, ANDREAS
2024/2025
Abstract
In a global scenario of increasing climate uncertainty, characterized by global warming and biodiversity loss at alarming rates, it is essential to recognize and value the natural ecosystems upon which our existence depends. This study aims to expand the knowledge regarding the Cymodocea nodosa meadow in the Porticciolo di Torrette, a pioneer species resistant to environmental stress. Sampling was conducted on three dates between June and July 2025 across three discontinuous patches of the meadow, building upon the initial monitoring carried out in 2024. To this end, the plant's structural parameters were investigated alongside the associated algal and animal communities, integrating traditional methods with innovative techniques (DNA metabarcoding). The results concerning structural parameters and the associated communities—despite slight variations—align with current literature and complement existing pioneer studies on metabarcoding. Furthermore, the meadow appears to be in a phase of active expansion, despite the numerous impacts it faces, such as water pollution, anchoring, and eutrophication. The loss of habitat leads to a decline in ecosystem services, such as coastal protection, ecosystem engineering, and climate regulation. Therefore, it is crucial to conduct in-depth studies on species that could play a leading role in a future marked by an increasingly evident climate crisis.| File | Dimensione | Formato | |
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https://hdl.handle.net/20.500.12075/25752