Spatio-temporal variability of intertidal algal assemblages of the Slovenian coast (Gulf of Trieste, northern Adriatic Sea)
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Fabio Rindi
Abstract
The algal assemblages of the northern Adriatic Sea have been studied intensively, but few quantitative data on their spatial and temporal dynamics are available. The intertidal assemblages of two coasts on the Gulf of Trieste were studied for a year, and the patterns of spatio-temporal variability were examined at several scales in space and time. Patterns for the whole assemblage and individual species were analysed by multivariate and univariate analyses. The assemblages of the two shores were relatively poor in species and characterised by different compositions. A moderate temporal variation was found, mostly related to differences between the periods winter-spring and summer-autumn. Patterns for individual species were mainly characterised by differences between the two shores (Polysiphonia opaca), interactions among shores and sampling dates (Fucus virsoides, Ulva compressa, Gelidium pusillum, Lophosiphonia obscura) and differences on the spatial scale of tens of metres (Ceramium species in aggregate, Cladophora albida, Ectocarpus siliculosus, Ulva laetevirens). The dissimilarity between the assemblages of the two shores was the emergent pattern, and differences in the texture and composition of the rocky substratum (marl and limestone, respectively) are considered perhaps the main causes of these differences. Future studies in this region should give more attention to this factor.
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© Walter de Gruyter Berlin New York
Articles in the same Issue
- First letters to the editor in Botanica Marina's “Forum” section
- Propagule release and recruitment in Porphyra perforata (Rhodophyta) from Baja California, Mexico
- Spatio-temporal variability of intertidal algal assemblages of the Slovenian coast (Gulf of Trieste, northern Adriatic Sea)
- Persistence of sea urchin (Heliocidaris erythrogramma) barrens on the east coast of Tasmania: inhibition of macroalgal recovery in the absence of high densities of sea urchins
- Biomass and taxonomic richness of epilithic cyanobacteria in a tropical intertidal rocky habitat
- Spatial variation in the structural parameters of Cymodocea nodosa seagrass meadows in the Canary Islands: a multiscaled approach
- The structure of sulfated galactans from selected species of New Zealand Champia
- The structure of the galactan from Aeodes nitidissima (Halymeniales, Rhodophyta)
- The structure of the polysaccharide from Grateloupia intestinalis in New Zealand
- Evaluation of the structures of polysaccharides from three taxa in the genus Hymenena and from Acrosorium decumbens (Rhodophyta, Delesseriaceae)
- The structure of polysaccharides from selected New Zealand species of Grateloupia
- The application of 13C NMR spectroscopy to the red algal polysaccharides of selected New Zealand species of Lomentaria
- Pseudovivipary, a new form of asexual reproduction in the seagrass Posidonia oceanica
- Comments on the papers by Ian J. Miller devoted to carbon-13 NMR spectroscopy of red algal galactans
- Response to “Comments on the papers by Ian J. Miller devoted to carbon-13 NMR spectroscopy of red algal galactans” by Anatolii I. Usov; Bot. Mar. 48 (2005): 178–180
- 8th International Phycological Congress 13–19 August 2005, Durban, South Africa
Articles in the same Issue
- First letters to the editor in Botanica Marina's “Forum” section
- Propagule release and recruitment in Porphyra perforata (Rhodophyta) from Baja California, Mexico
- Spatio-temporal variability of intertidal algal assemblages of the Slovenian coast (Gulf of Trieste, northern Adriatic Sea)
- Persistence of sea urchin (Heliocidaris erythrogramma) barrens on the east coast of Tasmania: inhibition of macroalgal recovery in the absence of high densities of sea urchins
- Biomass and taxonomic richness of epilithic cyanobacteria in a tropical intertidal rocky habitat
- Spatial variation in the structural parameters of Cymodocea nodosa seagrass meadows in the Canary Islands: a multiscaled approach
- The structure of sulfated galactans from selected species of New Zealand Champia
- The structure of the galactan from Aeodes nitidissima (Halymeniales, Rhodophyta)
- The structure of the polysaccharide from Grateloupia intestinalis in New Zealand
- Evaluation of the structures of polysaccharides from three taxa in the genus Hymenena and from Acrosorium decumbens (Rhodophyta, Delesseriaceae)
- The structure of polysaccharides from selected New Zealand species of Grateloupia
- The application of 13C NMR spectroscopy to the red algal polysaccharides of selected New Zealand species of Lomentaria
- Pseudovivipary, a new form of asexual reproduction in the seagrass Posidonia oceanica
- Comments on the papers by Ian J. Miller devoted to carbon-13 NMR spectroscopy of red algal galactans
- Response to “Comments on the papers by Ian J. Miller devoted to carbon-13 NMR spectroscopy of red algal galactans” by Anatolii I. Usov; Bot. Mar. 48 (2005): 178–180
- 8th International Phycological Congress 13–19 August 2005, Durban, South Africa