Benthic contribution to pelagic microalgal communities in two semi-enclosed, European-type littoral ecosystems (Marennes-Oléron Bay and Aiguillon Bay, France). Guarini, J., Gros, P., Blanchard, G., Richard, P., & Fillon, A. Journal of Sea Research, 52(4):241–258, November, 2004. Number: 4
Benthic contribution to pelagic microalgal communities in two semi-enclosed, European-type littoral ecosystems (Marennes-Oléron Bay and Aiguillon Bay, France) [link]Paper  doi  abstract   bibtex   
Long-term changes of the taxonomic composition of the phytoplankton communities of two French littoral ecosystems (Marennes-Oléron Bay and Aiguillon Bay) were investigated in order to estimate the benthic contribution in terms of biomass. A long-term phytoplankton survey (REPHY - IFREMER) provided phytoplankton densities at different taxonomic levels of identification from 1995 to 1999. The database was homogenised at the taxonomic level of the genus and the log10-density was used as an indicator of the biomass. At all stations investigated, a strong seasonality governed the changes in the number of genera and the log10-density. No significant differences were found between the stations. Factorial Correspondence Analyses were performed to provide a typology of sampling dates and corresponding functional groups of genera. Pennate diatoms were dominant in winter periods, while centric diatoms and dinoflagellates characterised summer and fall periods. Moreover, the log10-density of pennate diatoms did not follow a seasonal pattern. The relative contribution of this group, which appeared to be the most representative of the benthic microalgal communities, had a maximum variation range of 1 to 84% and was well correlated with the turbidity recorded at the same time. This study was a first step to provide a frame for further studies about the coupling between benthic and pelagic microalgal biomasses in semi-enclosed European-type littoral ecosystems.
@article{guarini_benthic_2004,
	title = {Benthic contribution to pelagic microalgal communities in two semi-enclosed, {European}-type littoral ecosystems ({Marennes}-{Oléron} {Bay} and {Aiguillon} {Bay}, {France})},
	volume = {52},
	issn = {1385-1101},
	url = {http://www.sciencedirect.com/science/article/pii/S1385110104000681},
	doi = {10.1016/j.seares.2004.04.003},
	abstract = {Long-term changes of the taxonomic composition of the phytoplankton communities of two French littoral ecosystems (Marennes-Oléron Bay and Aiguillon Bay) were investigated in order to estimate the benthic contribution in terms of biomass. A long-term phytoplankton survey (REPHY - IFREMER) provided phytoplankton densities at different taxonomic levels of identification from 1995 to 1999. The database was homogenised at the taxonomic level of the genus and the log10-density was used as an indicator of the biomass. At all stations investigated, a strong seasonality governed the changes in the number of genera and the log10-density. No significant differences were found between the stations. Factorial Correspondence Analyses were performed to provide a typology of sampling dates and corresponding functional groups of genera. Pennate diatoms were dominant in winter periods, while centric diatoms and dinoflagellates characterised summer and fall periods. Moreover, the log10-density of pennate diatoms did not follow a seasonal pattern. The relative contribution of this group, which appeared to be the most representative of the benthic microalgal communities, had a maximum variation range of 1 to 84\% and was well correlated with the turbidity recorded at the same time. This study was a first step to provide a frame for further studies about the coupling between benthic and pelagic microalgal biomasses in semi-enclosed European-type littoral ecosystems.},
	number = {4},
	urldate = {2019-04-16},
	journal = {Journal of Sea Research},
	author = {Guarini, Jean-Marc and Gros, Philippe and Blanchard, Gérard and Richard, Pierre and Fillon, Alain},
	month = nov,
	year = {2004},
	note = {Number: 4},
	keywords = {Time series, Community composition, Phytoplankton, Factorial analysis, Microphytobenthos},
	pages = {241--258}
}
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