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Spatio-temporal benthic biodiversity patterns and pollution pressure in three Mediterranean touristic ports
Chatzinikolaou, E.; Mandalakis, M.; Damianidis, P.; Dailianis, T.; Gambineri, S.; Rossano, C.; Scapini, F.; Carucci, A.; Arvanitidis, C. (2018). Spatio-temporal benthic biodiversity patterns and pollution pressure in three Mediterranean touristic ports. Sci. Total Environ. 624: 648-660. https://dx.doi.org/10.1016/j.scitotenv.2017.12.111
In: Science of the Total Environment. Elsevier: Amsterdam. ISSN 0048-9697; e-ISSN 1879-1026, meer
|  |
| Trefwoorden |
Anchorages > Harbours
Chemical elements > Metals > Heavy metals
Hydrocarbons
Macrobenthos
|
| Author keywords |
Physical variables; Chemical variables; |
| Auteurs | | Top |
- Chatzinikolaou, E.
- Mandalakis, M.
- Damianidis, P.
|
- Dailianis, T.
- Gambineri, S.
- Rossano, C.
|
- Scapini, F.
- Carucci, A.
- Arvanitidis, C.
|
| Abstract |
The Mediterranean Sea is one of the busiest areas worldwide in terms of maritime activity, facing considerable anthropogenic disturbance, such as pollution by hydrocarbons and heavy metals. The present study has evaluated the environmental and benthic biodiversity characteristics of three touristic ports, Cagliari (Sardinia, Italy), Heraklion (Crete, Greece) and El Kantaoui (Tunisia), based on the combined assessment of physical parameters, chemical variables (i.e. nutrients, pigments), sediment pollution and macrobenthic biodiversity. Different port sectors (leisure, fishing, passenger, cargo, shipyard) and different seasons (winter, before touristic period, after touristic period) were compared. Salinity and sediment concentration of copper and antimony were the three environmental parameters most highly correlated with benthic species composition and diversity. Both the environmental variables and the benthic biodiversity patterns were significantly different between the three ports (i.e. different geographical locations). Heraklion port was heavily polluted by AHs in surface and anoxic sediments and had the highest percentage of opportunistic species, while Cagliari had the highest levels of PAHs and UCM and low species richness. El Kantaoui port was less polluted and characterised by a richer biodiversity. The shipyard sector in Heraklion port was significantly different from all other sectors in terms of abiotic and biotic parameters. Physico-chemical and pollution variables recorded during the period after tourism (late summer) were significantly different from the ones recorded in winter. Seasonal differences were not significant between benthic species diversity patterns, but were revealed when the patterns derived from the aggregation of higher taxonomic levels were compared. The present study indicates that a regular-basis monitoring plan including evaluation of environmental health based on benthic biodiversity, can provide a basis for perceiving changes and reveal the degree of anthropogenic disturbance in port environments. |
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