An appraisal of the bcnlhic marinc algal communities of the bay of Sao Viccnte (SBo Migucl island... more An appraisal of the bcnlhic marinc algal communities of the bay of Sao Viccnte (SBo Migucl island. Azorcs) was undertaken in July 1996 and July 1997 as part of the projecl "Biodiversity of thc archipelago of lhe Azores". A permanent transect was laid down across [he sublidal zone. Quadrates were sampled at predetermined inlervals along the transect from the low waler level, down to 30m depth. Qualitative collections wcre madc along Lhe transect. ' Thc relative importance of each species was determined using a semi-quantitative scale. The transect revealed the occurrence of relatively Iargc and frondose algae establishing the transition bctween the intertidal and the subtidal zones. Pteroc~ladiellrl capillaceo was [he dominant specics in this transition zone and extended its presence down to 12m depth. A depth-relaled change in thc algal flora was present in both years. Pteroclarliella, Uh;a spp., Stypocn~rlon scopcrria, Hypnm rnuscifornlis and Asparclgop.ris arnlotn dominated the shallow levels; Zoilaricr tournefortii, together with Sp1laeroroccu.s coro~zop~oli~rs and Dichota clichoton~~ dominaled the deep ones.
An appraisal of the bcnlhic marinc algal communities of the bay of Sao Viccnte (SBo Migucl island... more An appraisal of the bcnlhic marinc algal communities of the bay of Sao Viccnte (SBo Migucl island. Azorcs) was undertaken in July 1996 and July 1997 as part of the projecl "Biodiversity of thc archipelago of lhe Azores". A permanent transect was laid down across [he sublidal zone. Quadrates were sampled at predetermined inlervals along the transect from the low waler level, down to 30m depth. Qualitative collections wcre madc along Lhe transect. ' Thc relative importance of each species was determined using a semi-quantitative scale. The transect revealed the occurrence of relatively Iargc and frondose algae establishing the transition bctween the intertidal and the subtidal zones. Pteroc~ladiellrl capillaceo was [he dominant specics in this transition zone and extended its presence down to 12m depth. A depth-relaled change in thc algal flora was present in both years. Pteroclarliella, Uh;a spp., Stypocn~rlon scopcrria, Hypnm rnuscifornlis and Asparclgop.ris arnlotn dominated the shallow levels; Zoilaricr tournefortii, together with Sp1laeroroccu.s coro~zop~oli~rs and Dichota clichoton~~ dominaled the deep ones.
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