@article {3412,
	title = {Diversity structure of phytoplankton communities and primary productivity in a temperate epicontinental sea },
	journal = {Marine Ecology Progress Series},
	volume = {505},
	year = {2014},
	pages = {49-64},
	abstract = {The dynamics of the phytoplankton assemblage, the physical, chemical and biological
parameters, and primary productivity and production were monitored in the central English
Channel along a transect between Ouistreham and Portsmouth from January to December 2010.
The spatial patterns of the phytoplankton assemblage were controlled by the hydrological characteristics
of the water masses, and the annual structure of the phytoplankton assemblage was characteristic
of the central English Channel and was controlled by seasonality. The spring bloom was
dominated by a single species, Chaetoceros socialis, and associated with low microphytoplankton
evenness and Shannon-Wiener indices, whereas the evenness index was high from late spring to
winter and associated with the proliferation of pico- and nanophytoplankton cells. We identified 2
species responsible for harmful algal blooms, Phaeocystis globosa, which dominated the community
in the northern part of the Seine Bay in May, and Lepidodinium chlorophorum, which dominated
the community near the French coast in September. We examined the relationship between
microphytoplankton diversity and maximum primary production and productivity. We found a
negative parabolic relationship between the diversity indices (evenness and Shannon-Wiener)
and maximum primary production, and a positive parabolic relationship between the number of
taxa (richness) and maximum primary production. However, we found no relationship between
maximum productivity and the evenness or richness indices. High levels of productivity were
measured during the increasing abundance of pico and nanophytoplankton cells, highlighting the
importance of taking the dominant functional group into account, rather than the degree of diversity,
when explaining the level of productivity.},
	keywords = {English Channel, Phytoplankton diversity, primary production, Productivity},
	author = {Napol{\'e}on, C and Fiant, Liliane and Raimbault, V and Riou, P and Pascal Claquin}
}
@article {3414,
	title = {Effects of CO2, nutrients and light on coastal plankton: II. Metabolic rates. Aquatic Biology},
	journal = {Aquatic Biology},
	volume = {22},
	year = {2014},
	month = {11/20/14},
	pages = {43-57},
	abstract = {We conducted a microcosm experiment aimed at studying the interactive effects
of high CO2, nutrient loading and irradiance on the metabolism of a planktonic community
sampled in the Western Mediterranean near the coast of M{\'a}laga. Changes in the metabolism
of phytoplankton and bacterioplankton were observed for 7 d under 8 treatment conditions,
representing the full factorial combinations of 2 levels each of CO2, nutrient concentration
and solar radiation exposure. The initial plankton sample was collected at the surface from
a stratified water column, indicating that phytoplankton were naturally acclimated to high
irradiance and low nutrient concentrations. Nutrient addition combined with high irradiance
resulted in a significant increase in primary production. Nitrate uptake by phytoplankton was
also stimulated under high nutrient conditions. High nutrients, high irradiance and the combination
of low CO2 and high irradiance positively affected bacterial production. Light was the
main factor affecting the respiration rates of the community, which were higher at the high
light level. After 7 d of incubation, nutrient loading was the only factor that significantly
affected the amount of particulate organic carbon (POC) accumulated in the microcosms.
Therefore, the changes in metabolic rates produced at high CO2 had no effect on net production
of particulate organic matter. If these results are extrapolated to the natural environment,
it could be hypothesized that high levels of CO2 will have a limited impact on biological
pump activity in the northern Alboran Sea since it is assumed that POC export towards deeper
layers determines the potential for carbon sequestration.},
	author = {Mercado, J. M. and Sobrino, C and Neale, P.J. and Segovia, M. and Reul, A. and Amorim, A.L. and Carrillo, P and Pascal Claquin and Cabrerizo, M.J and Le{\'o}n, P. and Lorenzo, M.R and Medina, J. M. and Montecino, V. and Napol{\'e}on, C and Prasil, 0. and Putzeys, S and Salles, S and Yebra, L}
}
