388
Euflltoral
a
6
4
2
O~-L1967
1968
1969
1979
lain
a kg
~I~
1967
1968
1969
1979
exponcl bay
if. v..,0i
1967
1968
1969
1979
aheHerdbay
; ~L..J ___ -UID!ID!IIIIIIIIIIIIIIIL.-'I7Z77Zl=iZL
1967
1968
1969
1979
highly expond bay
_
Fucus virsoides
~ Enteromorpha spp. and
Cladophora spp.
I.M. Munda
Sublittoral
a kg
6
4
2
0
1967
1968
1969
1979
lain
a kg
6
4
2
0
1967
1968
1969
1979
expoaedbay
a kg
6
1967
1968
1969
1979
aheHerdbay
a kg
~I ___ D
1967
1968
1969
1979
eullttoral/ aubllttoral JunctIon
_
Cystoseira species
c::J Ulva rigida - Scylosiphon
lomentaria
~ Ceramium species
lilSdU}1 Halopteris scoparia - Dictyota
dichotoma
Fig. 16.8. Annual variations in fresh weight algal biomass (kg m - 2) in the eulittoral and
sublittoral. (Munda 1993b)
absent from the vegetation in the late 1970s and early 1980s. They were
replaced by an association of Halopteris scoparia (Stypocaulon scoparium)
and Dictyota dichotoma, which exhibited a notably decreased biomass.
In some sheltered and heavily polluted sites, the above-mentioned