Preprint volume - SIBM

Pre-print Volume - Posters
VARIOUS TOPICS
compounds with less than 3 aromatic rings. In March the BSAF for the beachflea P.
platensis is >1 for PAHs with 2, 3, 4 and 5 aromatic rings, in June for PAHs pentaaromatics
or having less than 3 aromatic rings.
Fig. 1 – BSAF of PAHs per groups of aromaticity (≤3, 4, 5 and 6 aromatic rings) in T. saltator, O.
montagui and P. platensis during the summer (white bars) and winter (black bars) period.
Black line: BSAF=1 value.
BSAF degli IPA divisi per gruppi aromatici (≤3, 4, 5 e 6 anelli aromatici) in T. saltator, O.
montagui e P. platensis nel period estivo (barre bianche) e invernale (barre nere). Linea nera:
valore di BSA =1.
Conclusions – Our results confirm that sandhoppers and beachfleas seem to
accumulate PAHs. Furthermore there is a tendency to accumulate the heavier
molecular weight PAHs (with more aromatic rings) differently from other marine
crustaceans (Baumard et al., 1998). The higher concentration of PAHs during the
winter period in P. platensis is in line with other studies (Baumard et al., 1999). The
concentration of these organic pollutants in T. saltator and O. montagui, instead, is
higher in summer when the environmental availability is lower than in the winter
period, because of the most intensive summer degradation due to the direct action of
sun radiation and UV-rays. Therefore, these Amphipods could be good bioindicators of
PAHs contamination for the supralittoral zone and seasonal variation of PAHs
concentrations in these animals indicates that season and temperature are factors which
need to be considered using Amphipods as PAHs bioaccumulators.
References
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BAUMARD P., BUDZINSKI H., GARRIGUES P., DIZER H., HANSEN P.D. (1999) – Polycyclic
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Sea: occurrence, bioavailability and seasonal variations. Mar. Environ. Res., 47: 17-47.
MEADOR J.P., STEIN J.E., REICHERT W.L., VARANASI U. (1995) – Bioaccumulation of
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79-165.
SOMIGLI S., PERRA G., BORGHINI F., FOCARDI S., UGOLINI A. (2008). Gli anfipodi
sopralitorali come possibili bioindicatori della contaminazione da idrocarburi policiclici
aromatici. Biol. Mar. Mediterr., 15 (1): 438-439.
41 st S.I.B.M. CONGRESS Rapallo (GE), 7-11 June 2010
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