Preprint volume - SIBM

Pre-print Volume – Posters
Topic 3: INTEGRATED COASTAL ZONE MANAGEMENT
Tab. 1 - Values of EQR for Posidonia oceanica meadows. Density=shoots m -2 ; SLsurface=Shoot
Leaf surface (cm 2 shoot -1 ); LLdepth=Lowel Limit depth (m); Type=type of limit.
Valori di EQR relativi alle praterie di Posidonia oceanica. Densità=fasci m -2 ;
SLsurface=Superficie foliare per fascio (cm 2 fascio -1 ); LLdepth=profondità del limite
inferiore (m); Type=Tipo di limite.
Location EQR’density EQR’SL
surface
41 st S.I.B.M. CONGRESS Rapallo (GE), 7-11 June 2010
179
EQR’LLdepth EQR’type EQR
Piombino 0.77 (good) 0.81 (high) 0.36 (moderate) 0.44 (moderate) 0.60 (good)
Livorno 0.62 (good) 0.64 (good) 0.44 (moderate) 0.89 (high) 0.65(good)
Tab. 2 - Values of ecological status of 3 locations of Tuscany coasts obtained with the use of different
biological indicators.
Valori relativi allo stato ecologico delle tre località della costa toscana ottenuti con tramite
l'applicazione di diversi indicatori biologici.
Location EQR
P. oceanica
meadows
EQR
Macroalgal
assemblages
EQR
coralligenous
assemblages
EQR Ecological
status
Monte Argentario - 0.96 (high) 0.92 (high) 0.925 High
Piombino 0.60 (good) 0.71 (good) - 0.670 Good
Livorno 0.65 (good) 0.69 (good) 0.74 (good) 0.716 Good
Conclusions –The present paper allowed to compare values of ecological quality of
coastal water obtained through the use of different biological indicators and to evaluate
the effectiveness of the concurrent study of more habitats to determine the ecological
status of a determinate water body. This approach is important in relation to the high
variability of natural systems and the possibility that differences among assemblages
could be due to causes others than anthropogenic disturbance. A synthesis of results
obtained through a higher number of indicators may allow to make adequate
comparisons. An interesting result of the study was a general correspondence among
values of different indicators.
References
BALLESTEROS E., TORRAS X., PINEDO S., GARCIA M., MANGIALAJO L., DE TORRES M.
(2006) – A new methodology based on littoral community cartography dominated by macroalgae
for the implementation of the European Framework Directive. Mar. Pollut. Bull., 55: 172-180.
CECCHI E., PIAZZI L. (2010) – A new method for the assessment of the ecological status of
coralligenous assemblages. Biol. Mar. Mediterr., 17 (1): (submitted)
LOPEZ Y ROJO C., CASAZZA G., PERGENT-MARTINI C., PERGENT G. (2010) – A biotic
index using the seagrass Posidonia oceanica (BiPo), to evaluate ecological status of coastal
waters. Ecol. Indicators, 10: 380-389.
MANGIALAJO L., RUGGIERI N., ASNAGHI V,. CHIANTORE M,. POVERO P., CATTANEO-
VIETTI R. (2007) – Ecological status in the Ligurian Sea: the effect of coastline urbanization
and the importance of proper reference sites. Mar. Pollut. Bull., 55: 30-41.