Proceedings of the Second Mediterranean Symposium on Marine

to total dissolved inorganic nitrogen (TDIN) and nitrate-N, which increased from summer
(max. TDIN=6.37 µmol/l) to winter (max. TDIN=23.32 µmol/l). Phosphate-P
concentrations (August 2.76 µmol/l, December 1.9 µmol/l) and pH values followed
inversely seasonal changes. Dissolved oxygen (aver. 110.3 to 163.2 % saturation) and
chl-a (aver. 0.13 to 0.36 µg/l) increased from <strong>the</strong> station 2 to 3.
Benthic macrophytes: Twenty-one taxa were identified in total. Three Phaeophyceae
(most abundant Cystoseira barbata), six Chlorophyceae (most abundant Ulva sp.
Cladophora liniformis, Chaetomorpha aerea), ten Rhodophyceae (most abundant
Gracilaria bursa-pastoris, Chondria tenuissima, Polysiphonia elongata), and two
Liliopsida (Ruppia cirrhosa and Cymodocea nodosa). They belonged into 5 functionalform
groups: sheet, filamentous, coarsely branched, thick blades and seagrasses.
Table 1: Results <strong>of</strong> two-way Anova using factor scores
<strong>of</strong> <strong>the</strong> PCA <strong>of</strong> water parameters (*p