The role of water-level fluctuations in shallow lake ecosystems – workshop conclusions

Hydrobiologia ◽  
2003 ◽  
Vol 506-509 (1-3) ◽  
pp. 23-27 ◽  
Author(s):  
Hugo Coops ◽  
Meryem Beklioglu ◽  
Thomas L. Crisman
Keyword(s):  
Water Level ◽  
Shallow Lake ◽  
Water Level Fluctuations ◽  
Lake Ecosystems

scholarly journals Water physicochemistry and benthic macroinvertebrate communities in a tropical reservoir: The role of water level fluctuations and water depth

Limnologica ◽  
2015 ◽  
Vol 55 ◽  
pp. 13-20 ◽  
Author(s):  
Francis S. Magbanua ◽  
Nikki Yvette B. Mendoza ◽  
Christine Jewel C. Uy ◽  
Christoph D. Matthaei ◽  
Perry S. Ong
Keyword(s):  
Water Level ◽  
Water Depth ◽  
Water Level Fluctuations ◽  
Benthic Macroinvertebrate ◽  
Macroinvertebrate Communities ◽  
Tropical Reservoir

Persistence of clear-water, shallow-lake ecosystems: the role of protected areas and stable aquatic food webs

2014 ◽  
Vol 51 (3) ◽  
pp. 405-420 ◽  
Author(s):  
William O. Hobbs ◽  
Kevin M. Theissen ◽  
Sean M. Hagen ◽  
Charles W. Bruchu ◽  
Ben C. Czeck ◽  
...  
Keyword(s):  
Food Webs ◽  
Protected Areas ◽  
Shallow Lake ◽  
Clear Water ◽  
Lake Ecosystems ◽  
Aquatic Food Webs ◽  
Aquatic Food

Holocene development of aquatic vegetation in shallow Lake Njargajavri, Finnish Lapland, with evidence of water-level fluctuations and drying

2005 ◽  
Vol 34 (2) ◽  
pp. 203-215 ◽  
Author(s):  
Minna Väliranta ◽  
Seija Kultti ◽  
Marjut Nyman ◽  
Kaarina Sarmaja-Korjonen
Keyword(s):  
Water Level ◽  
Shallow Lake ◽  
Aquatic Vegetation ◽  
Water Level Fluctuations ◽  
Finnish Lapland

scholarly journals Influence of Hydrological Conditions on the Ecological State of Shallow Lake Vörtsjärv

Geografie ◽  
2004 ◽  
Vol 109 (2) ◽  
pp. 129-144
Author(s):  
Arvo Järvet
Keyword(s):  
Water Level ◽  
Shallow Lake ◽  
Water Body ◽  
Water Regime ◽  
Water Level Fluctuations ◽  
Ecological State ◽  
Fish Kills ◽  
Lake Võrtsjärv ◽  
Phosphorous Compounds ◽  
Area And Volume

Lake Vörtsjärv as a very shallow (mean depth 2.8 m) water-body and considerable water level fluctuations cause changes in both the surface area and volume of the lake. Due to the shallowness of the lake, low level periods are accompanied by several phenomena detrimental to its ecosystem, like cyanophyte blooms, overgrowing with macrophytes, resuspension of phosphorous compounds, restricted spawning places for pike and winter fish kills. In the years of low water level the perspectives to catch in established fishing sites using particular gear as well as access to harbours are hindered. Causal relations between the water regime and ecological state of the lake Vörtsjärv have been discussed in this paper.

scholarly journals Temporal Scaling of Water Level Fluctuations in Shallow Lakes and Its Impacts on the Lake Eco-Environments

2020 ◽  
Vol 12 (9) ◽  
pp. 3541
Author(s):  
Balati Maihemuti ◽  
Tayierjiang Aishan ◽  
Zibibula Simayi ◽  
Yilinuer Alifujiang ◽  
Shengtian Yang
Keyword(s):  
Water Balance ◽  
Water Level ◽  
Lake Water ◽  
Water Level Fluctuations ◽  
Balance Model ◽  
Lake Basin ◽  
Lake Ecosystems ◽  
Ebinur Lake ◽  
Ebinur Lake Basin ◽  
Lake Water Balance

Managing lake water levels from an ecological perspective has become an urgent issue in recent years in efforts to protect, conserve, and restore lake eco-environments. In this study, we considered the actual situation of Ebinur Lake basin to develop a lake water balance model using a System Dynamics (SD) method. The objective of this study is based on the lake water balance model to sufficiently understand the variation and relationship between the lake depth–area–volume. We combined field investigations and hydrological data analysis to expose the major factors affecting lake water level fluctuations (WLFs), as well as the impact of WLFs on lake eco-environments. All with the aim of providing a theoretical basis to manage Ebinur Lake ecosystems for conservation and restoration. The main findings of this study include: (I) The model’s calculation results agree with the observation value, as the monthly lake surface area was used to validate the model. (II) The factors influencing the dynamic changes in the water level of the lake are ranked in ascending order (from the lowest to the highest) as follows: Precipitation, groundwater recharge, evaporation, river inflow. (III) Fluctuations in water level play a significant role in lake shoreline displacement variation, and when the lake’s water level drops below 1 m, the surface area of the water body decreases to approximately 106 km2. (IV) The magnitude and frequency of WLFs drive major differences in the ecology of lake littoral zones, influencing not only the structure and functioning of benthic assemblages but also littoral habitat structure. These results established a quantitative linkage between hydrological variables and ecosystem health for the Ebinur Lake wetlands. These findings could be widely used in managing the Ebinur Lake basin as well as other similar water bodies, and could provide a useful tool for managing lake ecosystems for conservation and restoration.

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