scholarly journals Does salinization impact long‐term Daphnia assemblage dynamics? Evidence from the sediment egg bank in a small hard‐water lake

2021 ◽  
Author(s):  
Matthew J. Wersebe ◽  
Mark B. Edlund ◽  
Lawrence J. Weider
Keyword(s):  
Hard Water ◽  
Egg Bank ◽  
Water Lake

scholarly journals A long-term multi-proxy record of varved sediments highlights climate-induced mixing-regime shift in a large hard-water lake ~5000 years ago

2014 ◽  
Vol 73 (2) ◽  
Author(s):  
Walter Finsinger ◽  
Thierry Fonville ◽  
Emiliya Kirilova ◽  
Andrea Lami ◽  
Piero Guilizzoni ◽  
...  
Keyword(s):  
Regime Shift ◽  
Hard Water ◽  
Proxy Record ◽  
Varved Sediments ◽  
Water Lake ◽  
Mixing Regime

scholarly journals Restoration of a eutrophic hard-water lake by applying an optimised dosage of poly-aluminium chloride (PAC)

Limnologica ◽  
2018 ◽  
Vol 70 ◽  
pp. 33-48 ◽  
Author(s):  
Peter Kasprzak ◽  
Thomas Gonsiorczyk ◽  
Hans-Peter Grossart ◽  
Michael Hupfer ◽  
Rainer Koschel ◽  
...  
Keyword(s):  
Hard Water ◽  
Aluminium Chloride ◽  
Water Lake

Long-term dynamics of the zooplankton community during large salinity fluctuations in a coastal lagoon

2015 ◽  
Vol 66 (4) ◽  
pp. 352 ◽  
Author(s):  
Luciana Rabelo Araújo ◽  
Paloma Marinho Lopes ◽  
Jayme Magalhães Santangelo ◽  
Francisco de Assis Esteves ◽  
Reinaldo Luiz Bozelli
Keyword(s):  
Species Richness ◽  
Total Phosphorus ◽  
Coastal Lagoon ◽  
Zooplankton Community ◽  
Zooplankton Community Structure ◽  
Egg Bank ◽  
Resting Egg ◽  
Low Salinity ◽  
Resting Egg Bank

Aquatic coastal systems are affected by high fluctuations in salinity and the zooplankton may rely on dispersal or dormancy to recolonise these environments. Here, we analysed the long-term dynamics of the zooplankton community over 6 years during large salinity fluctuations in a coastal lagoon (Garças Lagoon, Brazil) and the effect of salinity on the hatching patterns of the resting egg bank. We hypothesised that salinity is the main driving factor of the zooplankton community structure, and that increases in salinity reduce the species richness and the abundance of hatchlings. Multiple regression analysis showed that salinity was associated negatively with species richness in the open water, whereas total phosphorus and chlorophyll-a concentrations were negatively and positively related to abundance respectively. Redundancy analysis demonstrated that temporally structured environmental variables (total phosphorus and salinity) were important for zooplankton composition. Periods of low salinity allowed the presence of freshwater organisms, changing the zooplankton composition over the years. However, our hatchling experiment showed a depauperate resting egg bank. Overall, our results showed a strong influence of salinity on the structure and dynamics of the zooplankton at Garças Lagoon, and that the resting egg bank likely plays a minor role in the zooplankton colonisation during low-salinity periods.

Light-Mediated Uptake of H-Glucose in a Small Hard-Water Lake

Ecology ◽  
1977 ◽  
Vol 58 (6) ◽  
pp. 1356-1365 ◽  
Author(s):  
Kelton R. McKinley
Keyword(s):  
Hard Water ◽  
Water Lake

S�yn�j�lampi and the difficulties inherent in the dating of sediments in a hard-water lake

Hydrobiologia ◽  
1983 ◽  
Vol 103 (1) ◽  
pp. 5-14 ◽  
Author(s):  
Ingrid U. Olsson ◽  
Farid El-Daoushy ◽  
Yrj� Vasari
Keyword(s):  
Hard Water ◽  
Water Lake
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