Environmental DNA (eDNA) techniques are emerging as promising tools for monitoring marine communities. However, they have not been applied to study the integrated effects of anthropogenic pressures on marine biodiversity. This study examined the relationships between demersal community species composition, key environmental features, and anthropogenic impacts such as fishing effort and seafloor litter using eDNA data in the central Tyrrhenian Sea. The results indicated that both fishing effort and seafloor litter influenced species composition and diversity. The adaptive traits of marine species played a critical role in their response to debris accumulation and fishing. Mobile species appeared to use relocation strategies, while sessile species showed flexibility in the face of disturbance. Epibiotic species relied on passive transport. The use of eDNA-based methods is a valuable resource for monitoring anthropogenic impacts during scientific surveys, enhancing our ability to monitor marine ecosystems and more effectively assess the effects of pollution.

Sbrana, A., Maiello, G., Gravina, M.f., Cicala, D., Galli, S., Stefani, M., et al. (2024). Environmental DNA metabarcoding reveals the effects of seafloor litter and trawling on marine biodiversity. MARINE ENVIRONMENTAL RESEARCH [10.1016/j.marenvres.2024.106415].

Environmental DNA metabarcoding reveals the effects of seafloor litter and trawling on marine biodiversity

Sbrana, Alice
;
Maiello, Giulia;Gravina, Maria Flavia;Cicala, Davide;Stefani, Matteo;Russo, Tommaso
2024-02-19

Abstract

Environmental DNA (eDNA) techniques are emerging as promising tools for monitoring marine communities. However, they have not been applied to study the integrated effects of anthropogenic pressures on marine biodiversity. This study examined the relationships between demersal community species composition, key environmental features, and anthropogenic impacts such as fishing effort and seafloor litter using eDNA data in the central Tyrrhenian Sea. The results indicated that both fishing effort and seafloor litter influenced species composition and diversity. The adaptive traits of marine species played a critical role in their response to debris accumulation and fishing. Mobile species appeared to use relocation strategies, while sessile species showed flexibility in the face of disturbance. Epibiotic species relied on passive transport. The use of eDNA-based methods is a valuable resource for monitoring anthropogenic impacts during scientific surveys, enhancing our ability to monitor marine ecosystems and more effectively assess the effects of pollution.
19-feb-2024
In corso di stampa
Rilevanza internazionale
Articolo
Esperti anonimi
Settore BIO/04
English
Con Impact Factor ISI
Anthropogenic impacts
Community composition
Ecosystem disturbance
Environmental DNA
Fisheries
Seafloor litter
Sbrana, A., Maiello, G., Gravina, M.f., Cicala, D., Galli, S., Stefani, M., et al. (2024). Environmental DNA metabarcoding reveals the effects of seafloor litter and trawling on marine biodiversity. MARINE ENVIRONMENTAL RESEARCH [10.1016/j.marenvres.2024.106415].
Sbrana, A; Maiello, G; Gravina, Mf; Cicala, D; Galli, S; Stefani, M; Russo, T
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2108/355964
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