Page 5 - Macrofaunal_biodiversity_2006

Results

General description of the sandy beach benthic environment

The abiotic data from the six sampling sites (Figure 2) show considerable vari-
ance in their geomorphological and hydrological state. For the Maremma beach lower
temperature values are generally observed in the Maremma site 3, while for the Cre-
tan beaches higher temperature values are indicative for Gournes beach. Accordingly,
the salinity values are higher at Elafonisi beach. The values from the redox potential
seem to be correlated with the depth in the sediments. Stations 3 and 4 generally show

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Temperature [oC] 20 Salinity [o/oo] 36
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19
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Station 1 Station 2 Station 3 Station 4 Station 1 Station 2 Station 3 Station 4
temp S

0,300
400
0,250
Redox Potential [mV] 300 Chlorophyll ! [µg/g] 0,150
350
0,200
0,100
250
200 0,050
0,000
Station 1 Station 2 Station 3 Station 4 Station 1 Station 2 Station 3 Station 4
eh Chla
0,5
1900
1700 0,45
0,4
1500
POC [µg/g] 1300 Median grain size [mm] 0,35
1100
0,3
900 0,25
700
0,2
500
Station 1 Station 2 Station 3 Station 4
Station 1 Station 2 Station 3 Station 4
Maremma 1
Phaeop Maremma 2 Maremma 3 POC Gournes
Elafonisi Pahia Ammos
Figure 2. Average values of: (i) temperature; (ii) salinity; (iii) redox potential; (iv) chlorophyll-α con-
centration; (v) particulate organic carbon (POC) concentration; (vi) median grain size, across the 6
sampling locations.

Macrofauna diversity on Mediterranean sandy beaches MEDCORE