Micro-meiofauna morphofunctional traits linked to trophic activity

Neury‐Ormanni, Julie; Vedrenne, Jacky; Wagner, Margot; Jan, Gwilherm; Morin, Soizic

doi:10.1007/s10750-019-04120-0

Cited by 20 publications

(5 citation statements)

References 47 publications

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“…This provided a more detailed insight into the dynamics of periphytic ciliates and revealed the prevalence of diverse taxonomic and functional groups over the course of colonization process. Seasonality of periphytic communities in temperate regions has been extensively studied (Sigee, 2005;Mora-Gómez et al, 2016), and seasonal shifts in community structure and dynamics have also been found for periphytic ciliates (Safi et al, 2014;Neury-Ormanni et al, 2020;Sikder et al, 2020). In this study, the taxonomic composition of ciliate communities significantly differed between the spring and summer seasons, confirming that seasonality strongly influences the ciliate colonization process.…”

Section: Discussionsupporting

confidence: 76%

“…The development and biological composition of periphytic communities is strongly influenced by environmental conditions, including factors such as light intensity, hydrology, water chemistry, macrophytes, planktonic communities and grazing pressure (Arndt et al, 2003;Liboriussen, 2003;Sigee, 2005;Vermaat, 2005). In temperate lakes, climate is another important factor for periphytic communities, and seasonal variations in environmental conditions (especially light and temperature) can lead to differences in the composition of periphytic phagotrophic protists, including composition of ciliate species (Arndt et al, 2003;Früh et al, 2011;Neury-Ormanni et al, 2020;Sikder et al, 2020). An increase in water temperature leads to an acceleration in ciliate growth rate and colonization, but this is also strongly dependent on resource availability (Norf et al, 2007(Norf et al, , 2009bFrüh et al, 2011;Villanueva et al, 2011).…”

Section: Introductionmentioning

confidence: 99%

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Key drivers influencing the colonization of periphytic ciliates and their functional role in hydrologically dynamic floodplain lake ecosystem

Vlaičević

Kepčija

Gulin

et al. 2021

Knowl. Manag. Aquat. Ecosyst.

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We investigated the colonization process and community dynamics of periphytic ciliates in a floodplain lake. To elucidate the functional role of ciliates, we investigated variations in their functional traits during colonization. Our research revealed that ciliate colonization process differs significantly between spring and summer, mainly due to differences in water temperature and hydrological regime. The most pronounced influence of temperature-initiated differences was observed during the initial phase of colonization, during which faster colonization with different pioneer species, and more diverse and abundant ciliate community characterized the summer initial phase. Hydrological changes significantly affected periphytic communities during the intermediate and late phases, resulting in different patterns of the colonization process. Mitigation of suspended food particles during flooding periods led to a decrease in ciliate abundance and the dominance of mobile benthivore ciliates (raptorial and filter feeders), whilst during more stable periods of low water, sessile planktivores (filter feeders) that consume suspended particles, dominated. They are considered to be main representatives of periphytic ciliates in floodplain lakes, playing a significant role in the pelagic-benthic coupling. The results of the present study offer new insights into the ecology and functional role of periphytic ciliates in a floodplain ecosystems of temperate regions.

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Section: Discussionsupporting

confidence: 76%

Section: Introductionmentioning

confidence: 99%

Key drivers influencing the colonization of periphytic ciliates and their functional role in hydrologically dynamic floodplain lake ecosystem

Vlaičević

Kepčija

Gulin

et al. 2021

Knowl. Manag. Aquat. Ecosyst.

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“…Biofilms were grown in a DDBAC-free pond in Cestas, near Bordeaux, France. A previous study classified this small water body as a hypereutrophic pond (Chaumet et al, 2019; Neury-Ormanni et al, 2020). Glass slides (∼200 cm²) were immersed in the photic zone, at a depth of 30-50 cm.…”

Section: Methodsmentioning

confidence: 99%

Experimental testing of two urban stressors on freshwater biofilms

Vrba

Lavoie

Creusot

et al. 2023

Preprint

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In urban areas, aquatic ecosystems and their communities are exposed to numerous stressors of various natures (chemical and physical), which impacts are often poorly documented. In epidemic context such as the COVID 19 pandemic, the use of biocides such as the dodecylbenzyldimethylammonium chloride (BAC 12) increased, resulting in an expectable increase in their concentrations in urban aquatic ecosystems. This compound is known to be toxic to most aquatic organisms. Besides, artificial light at night (ALAN) is increasing globally, especially in urban areas. ALAN may have a negative impact on photosynthetic cycles of periphytic biofilms, which in turn may result in changes in their metabolic functioning. Moreover, studies suggest that exposure to artificial light could increase the biocidal effect of BAC 12 on biofilms. The present study investigates the individual and combined effects of BAC 12 and/or ALAN on the functioning and structure of photosynthetic biofilms. We exposed biofilms to a nominal concentration of 30 mg.L-1 of BAC 12 and/or ALAN for 10 days. BAC 12 had a negative impact on biofilm functioning by decreasing the amount and the quality of photosynthetic pigments, resulting in a >90% decrease in photosynthetic efficiency after 2 days of exposure. We also noted a strong decrease in glycolipids that resulted in a shift in lipid profiles. We found no significant effect of ALAN on the endpoints assessed and no interaction between the two stress factors.

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“…The body length (in mm) and biomass (μg of dry mass) of the individuals of each taxon were determined using the methods and size-biomass conversion equations in Reiss and Schmid-Araya (2008). The taxa were attributed to different feeding and locomotion guilds considering the mean trait profiles of their families in the biogeographic region (Neury-Ormanni et al, 2020;Di Lorenzo et al, 2021) and in-vivo observations performed in a preliminary survey. In detail: Nematoda were identified as swimmers (thrashers) and deposit-feeders (sRavizza and Zwick, 2006); Annelida Oligochaeta Naididae, all belonging to the genus Pristina, were burrowers and deposit-feeders (Glasby et al, 2021); the individuals of the cyclopoid A. robustus were swimmers and predators (Maier, 1990); the larvae of Diptera Chironomidae were burrowers and deposit-feeders (Kornijów et al, 2021) and, finally, the early larval stages of Ephemeroptera Baetidae were crawlers and scrapers (Jacobus et al, 2019).…”

Section: Sample Collection and Processingmentioning

confidence: 99%