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| Soulié, Tanguy; Mas, Sébastien; Parin, David; Vidussi, Francesca; Mostajir, Behzad. |
| Understanding how aquatic ecosystems respond to perturbations has emerged as a crucial way to predict the future of these ecosystems and to assess their capacity to produce oxygen and store atmospheric carbon. In this context, in situ mesocosm experiments are a useful approach for simulating disturbances and observing changes in planktonic communities over time and under controlled conditions. Within mesocosm experiments, the estimation of fundamental parameters such as gross primary production (GPP), net community production (NCP), and respiration (R) allows the evaluation of planktonic metabolic responses to a perturbation. The continuous estimation of these metabolic parameters in real time and at high frequency is made possible by employing noninvasive... |
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| Ano: 2021 |
URL: https://archimer.ifremer.fr/doc/00686/79762/82562.pdf |
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| Courboulès, Justine; Vidussi, Francesca; Soulié, Tanguy; Mas, Sébastien; Pecqueur, David; Mostajir, Behzad. |
| To investigate the responses of a natural microbial plankton community of coastal Mediterranean waters to warming, which are still poorly known, an in situ mesocosm experiment was carried out in Thau Lagoon during autumn 2018. Several microorganisms, including virio-, bacterio-, and phytoplankton < 10 µm in size, were monitored daily and analysed using flow cytometry for 19 consecutive days in six mesocosms. Three mesocosms (control) had the same natural water temperature as the lagoon, and the other three were warmed by + 3 °C in relation to the control temperature. The cytometric analyses revealed an unexpected community dominated by picophytoplanktonic cells, including Prochlorococcus-like and Picochlorum-like cells, which had not previously been... |
| Tipo: Text |
Palavras-chave: Pico- and nanophytoplankton; Bacterioplankton; Virus; Warming; In situ mesocosm; Thau lagoon. |
| Ano: 2021 |
URL: https://archimer.ifremer.fr/doc/00688/79979/82933.pdf |
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