Scheda di dettaglio – i prodotti della ricerca
| Dato | Valore |
|---|---|
| Title | Disturbances due to increased salinity and the resilience of zooplankton communities: the potential role of the resting egg bank |
| Abstract | When faced with disturbances such as increased salinity, aquatic communities inhabiting inland coastal systems change and may or may not be resilient after salinity decreases. The purpose of this study was to assess the potential role of the resting egg bank for zooplankton community resilience. We predicted that (1) hatching of resting eggs is inhibited by increased salinities and (2) resting eggs remain viable when exposed to salinity and hatch when returned to freshwater. At the community level, we evaluated the hatching responses and the short-term viability of resting eggs exposed to a salinity gradient. The hatching of resting eggs was inhibited at higher salinities (16.0 and 32.0 g l(-1)). However, some resting eggs remained viable and hatched when returned to freshwater. Additionally, combining our experimental results to previously published field data, we observed that the pattern of hatching during exposure to salinity matches the temporal succession observed in the zooplankton community at our model system, after increased salinity. The recovery of zooplankton communities after disturbances involving increased salinity is likely facilitated by the presence of an egg bank. This finding has important implications for the recovery of zooplankton communities and the management of aquatic systems vulnerable to salinization worldwide. |
| Source | Hydrobiologia (The Hague. Print) 722 (1), pp. 103–113 |
| Keywords | Community stabilityCoastal lakesDiapauseSalinizationRestoration |
| Journal | Hydrobiologia (The Hague. Print) |
| Editor | Kluwer Academic Publishers, Boston, Paesi Bassi |
| Year | 2014 |
| Type | Articolo in rivista |
| DOI | 10.1007/s10750-013-1683-6 |
| Authors | Jayme M. Santangelo; Francisco de A. Esteves; Marina Manca; Reinaldo L. Bozelli |
| Text | 328479 2014 10.1007/s10750 013 1683 6 ISI Web of Science WOS 000327405400009 Scopus 2 s2.0 84888234284 Community stability Coastal lakes Diapause Salinization Restoration Disturbances due to increased salinity and the resilience of zooplankton communities the potential role of the resting egg bank Jayme M. Santangelo; Francisco de A. Esteves; Marina Manca; Reinaldo L. Bozelli Universidade Federal do Rio de Janeiro; CNR Inst Study Ecosyst When faced with disturbances such as increased salinity, aquatic communities inhabiting inland coastal systems change and may or may not be resilient after salinity decreases. The purpose of this study was to assess the potential role of the resting egg bank for zooplankton community resilience. We predicted that 1 hatching of resting eggs is inhibited by increased salinities and 2 resting eggs remain viable when exposed to salinity and hatch when returned to freshwater. At the community level, we evaluated the hatching responses and the short term viability of resting eggs exposed to a salinity gradient. The hatching of resting eggs was inhibited at higher salinities 16.0 and 32.0 g l 1 . However, some resting eggs remained viable and hatched when returned to freshwater. Additionally, combining our experimental results to previously published field data, we observed that the pattern of hatching during exposure to salinity matches the temporal succession observed in the zooplankton community at our model system, after increased salinity. The recovery of zooplankton communities after disturbances involving increased salinity is likely facilitated by the presence of an egg bank. This finding has important implications for the recovery of zooplankton communities and the management of aquatic systems vulnerable to salinization worldwide. 722 Published version Articolo 2014_Hydrobiologia_722_103_113.pdf Articolo in rivista Kluwer Academic Publishers 0018 8158 Hydrobiologia The Hague. Print Hydrobiologia The Hague. Print Hydrobiologia The Hague. Print Hydrobiologia. The Hague. Print Hydrobiologia Dordrecht The Hague. Print Hydrobiologia Boston The Hague. Print Hydrobiologia London The Hague. Print marinamarcella.manca MANCA MARINA MARCELLA TA.P04.016.004 Ecologia teorica e applicata degli ecosistemi acquatici |