Maria Paola Mura

Spanish National Research Council | CSIC · Centre de Estudis Avanc,ats de Blanes

The Gulf of Lions (GoL) is among the most productive areas of the Mediterranean Sea, with the Rhône River contributing with as much as 90% of the liquid and solid materials (including anthropogenic chemicals) reaching the area. In this paper, we assessed whether classical descriptive ecology and MaxEnt predictive species distribution modelling were...

[From the introduction:] Le Plateau des Guyanes ou bouclier guyanais s’étend sur quelques 1 600 km de la côte nord-est du continent sudaméricain, entre l’estuaire des fleuves Orénoque à l’ouest et Amazone à l’est. Cette région naturelle regroupe, d’ouest en est, une partie de la Colombie, le Venezuela, le Guyana, le Surinam, la Guyane et le nord du...

Microplanktonic community respiration (R) and net community production (NCP) in upper surface waters around the Antarctic Peninsula were studied in the summers of 1993, 1994 and 2000. Data on pelagic community metabolism from upper surface Antarctic waters (N = 27) were collected from the literature and included in the analysis (N = 96). The variab...

Phytoplankton cell lysis is perceived to be an important loss process in the sea, although a quantification of this process has proved elusive. A recently developed method, based on the measurement of dissolved esterase activity (EA), was used to estimate the release of esterases following phytoplankton cell lysis in an effort to evaluate the impor...

The hypothesis that enhanced phytoplankton growth explained the increase in phytc-plankton biomass observed at a frontal structure off the Antarctic Peninsula during the summer of 1993 was examined by analysing the phytoplankton cells undergoing mitosis. The frequency of dividing cells (FDC) of an unidentified phototrophic species of Cryptophyceae,...

Growth rates of phytoplankton (cell diameter <200 mu m) were examined using dialysis bags incubated in situ at 3 coastal sites around the Antarctic Peninsula during the austral summer of 1994. The phytoplankton community, which was similar for all 3 sites, was dominated by diatoms of the genera Thalassiosira sp., Nitzschia sp., and Chaetoceros sp....

A series of dialysis experiments was performed to study the relative importance of substrate limitation and grazing in controlling the proportion of active cells of coastal marine bacterioplankton. The grazer community was manipulated by filling dialysis bags with unfiltered water and water serially passed through 150-, 40-, and 0.8-μm pore-size fi...

The seasonal variation in the respiration and net community metabolism of microplanktonic communities was examined in the Bay of Blanes, an exposed NW Mediterranean bay (NE Spanish coast) which receives intermittent inputs from a torrential river, based on estimates of respiration rates of microplanktonic communities obtained over 2 yr (March 1992...

The role of losses in controlling phytoplankton biomass and production off Blanes Bay (NW Mediterranean) were examined, using in situ dialysis cultures, during a period of very low nutrient concentration. The ambient community experienced a negative net growth rate (-0.05 +/- 0.03 divisions d(-1)), compared to relatively high community growth rates...

The association between the variability of phytoplankton biomass and community structure and the distribution of water masses around the Antarctic Peninsula were examined during austral summer 1993. Phytoplankton biomass showed high variability, and was dominated by an autotrophic flagellate (Cryptomonas sp.) that represented, on average, 91% of to...

Growth rates of phytoplankton (cell diameter <200 pm) were examined using dialysis bags incubated in situ at 3 coastal sites around the Antarctic Peninsula during the austral summer of 1994 The phytoplankton community, which was similar for all 3 sites, was dominated by diatoms of the genera Thalassiosira sp., Nitzschla sp., and Chaetoceros sp The...