Environmental drivers of nematode community structure in harbors: the interplay of pollution, granulometry, and spatial heterogeneity.

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Main Authors: Baldrighi, Elisa, Grassi, Eleonora, da Montanara, Adele Cocozza, Sandulli, Roberto, Baguley, Jeffrey, Semprucci, Federica
Format: Artículo científico
Language:en
Published: Marine pollution bulletin 2026
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author Baldrighi, Elisa
Grassi, Eleonora
da Montanara, Adele Cocozza
Sandulli, Roberto
Baguley, Jeffrey
Semprucci, Federica
author_facet Baldrighi, Elisa
Grassi, Eleonora
da Montanara, Adele Cocozza
Sandulli, Roberto
Baguley, Jeffrey
Semprucci, Federica
Baldrighi, Elisa
Grassi, Eleonora
da Montanara, Adele Cocozza
Sandulli, Roberto
Baguley, Jeffrey
Semprucci, Federica
collection PubMed - marine biology
contents Environmental drivers of nematode community structure in harbors: the interplay of pollution, granulometry, and spatial heterogeneity. Baldrighi, Elisa Grassi, Eleonora da Montanara, Adele Cocozza Sandulli, Roberto Baguley, Jeffrey Semprucci, Federica Animals Nematoda Environmental Monitoring Geologic Sediments Ecosystem Mediterranean Sea This meta-analysis provides a comprehensive assessment of meiofaunal nematodes in Mediterranean port ecosystems, integrating taxonomic patterns, frequency of occurrence, and environmental characteristics across seven ports. Only a limited set of genera occurred consistently across sites, all belonging to tolerant and opportunistic taxa, confirming that nematode assemblages in ports are strongly shaped by environmental filtering but do not form a community uniquely characteristic of port environments. Community differences among ports were driven primarily by sediment grain size, depth, and port-specific hydrodynamic conditions rather than by geographical proximity. Highly impacted stations were associated with a single consistent indicator genus, while moderately impacted sites hosted a broader suite of transitional taxa. No genus was exclusive to non-impacted conditions, which were instead characterized by more balanced and evenly structured assemblages. Contaminant levels played a secondary and context-dependent role, largely modulated by sediment permeability and oxygenation. Overall, the findings highlight the sensitivity of nematode assemblages to both natural and anthropogenic gradients and underline their value as ecological indicators when interpreted together with sedimentological features, functional traits, and local port morphology.
format Artículo científico
id pubmed_41850120
institution PubMed
language en
publishDate 2026
publisher Marine pollution bulletin
record_format pubmed
spellingShingle Environmental drivers of nematode community structure in harbors: the interplay of pollution, granulometry, and spatial heterogeneity.
Baldrighi, Elisa
Grassi, Eleonora
da Montanara, Adele Cocozza
Sandulli, Roberto
Baguley, Jeffrey
Semprucci, Federica
Animals
Nematoda
Environmental Monitoring
Geologic Sediments
Ecosystem
Mediterranean Sea
Environmental drivers of nematode community structure in harbors: the interplay of pollution, granulometry, and spatial heterogeneity. Baldrighi, Elisa Grassi, Eleonora da Montanara, Adele Cocozza Sandulli, Roberto Baguley, Jeffrey Semprucci, Federica Animals Nematoda Environmental Monitoring Geologic Sediments Ecosystem Mediterranean Sea This meta-analysis provides a comprehensive assessment of meiofaunal nematodes in Mediterranean port ecosystems, integrating taxonomic patterns, frequency of occurrence, and environmental characteristics across seven ports. Only a limited set of genera occurred consistently across sites, all belonging to tolerant and opportunistic taxa, confirming that nematode assemblages in ports are strongly shaped by environmental filtering but do not form a community uniquely characteristic of port environments. Community differences among ports were driven primarily by sediment grain size, depth, and port-specific hydrodynamic conditions rather than by geographical proximity. Highly impacted stations were associated with a single consistent indicator genus, while moderately impacted sites hosted a broader suite of transitional taxa. No genus was exclusive to non-impacted conditions, which were instead characterized by more balanced and evenly structured assemblages. Contaminant levels played a secondary and context-dependent role, largely modulated by sediment permeability and oxygenation. Overall, the findings highlight the sensitivity of nematode assemblages to both natural and anthropogenic gradients and underline their value as ecological indicators when interpreted together with sedimentological features, functional traits, and local port morphology.
title Environmental drivers of nematode community structure in harbors: the interplay of pollution, granulometry, and spatial heterogeneity.
topic Animals
Nematoda
Environmental Monitoring
Geologic Sediments
Ecosystem
Mediterranean Sea
url https://pubmed.ncbi.nlm.nih.gov/41850120/