undisturbed site
10
10
10
10
20
"
15
%
moderately polluted site
eullttoral
50
%
euliHoral/sublittoral juncton
upper sublittoral
60
"
lower sublittoral
48
%
55
"
heavilv polluted site
Mytilus
15
30
%
see urchins
Average-percentage species composition of fresh weight algal biomass iI' 1 the Northern Adriatic
... Fucus virscides -
Slidingia minima
!t···}il
crustose corallin ..
-
Utva rig Ida·
-
Halopleris scoparia
-
deep-waler
Enteromorpha spp.
green algae
... Gelidium pusillum ~
Dictyota dicholoma
IIIIaI
Halophhys incurvus
••
Ceramium spp.
-
eysloseira spp.
-
Scytoslphon
lomentaria
IlIIlIIIIIlII
Polysiphonia .pp.
~
Sargassum spp.
CJ
Mytillus
-
Cladophora spp.
-
galloprovinciali.
Coramna o/focinalis
Fig. 16.10. Average percentage species composition of algal biomass (fresh weight) in the
northern Adriatic. (Munda 1993b)