The spatial distribution and structure of nematode assemblages in the area surrounding the harbour of
Vado Ligure (Savona, NW Mediterranean) were studied in relation to the influence of natural and
anthropogenic environmental factors. Stations were selected following an “anthropogenic gradient” from
sites located near the city centre and its harbour to more pristine and distant sites. Sediment quality was
determined by considering both sediment granulometric and chemical parameters (hydrocarbons, heavy
metals, total organic matter, proteins, carbohydrates) as well as nematode abundance, diversity, life
strategies, trophic structure and assemblage composition. A high correlation between environmental
characteristics and the nematode response was found. On the basis of the comparison of these results,
which identified three distinct sub-areas associated with different levels of environmental quality, a set
of nematode indicator genera was selected for the future evaluation of quality status
