Control of primary productivity and the significance of photosynthetic
... 11.8- 103m 2, Zmax= 11.5m) meromictic kettle lake (Mittlerer Buchensee). Annual phytoplankton productivity was estimated to ca 120 gC. m -2. a -t (1,42 tC- lake 1. a-l). The marked thermal stratification of the lake led to irregular vertical distributions of chlorophylla concentrations (Chla) and, t ...
... 11.8- 103m 2, Zmax= 11.5m) meromictic kettle lake (Mittlerer Buchensee). Annual phytoplankton productivity was estimated to ca 120 gC. m -2. a -t (1,42 tC- lake 1. a-l). The marked thermal stratification of the lake led to irregular vertical distributions of chlorophylla concentrations (Chla) and, t ...
Seasonal water-column dynamics of dissolved inorganic carbon
... and has neither a surface inlet nor outlet. Eutrophic Green Lake is phytoplankton dominated, with four small surface inlets and one outlet as well as groundwater in- and outflow. Its large surface area and relatively shallow depth allow mixing to within 1–2 m of the lake bottom by early summer, alth ...
... and has neither a surface inlet nor outlet. Eutrophic Green Lake is phytoplankton dominated, with four small surface inlets and one outlet as well as groundwater in- and outflow. Its large surface area and relatively shallow depth allow mixing to within 1–2 m of the lake bottom by early summer, alth ...
Hurricane effects on the planktonic food web of a large subtropical
... dynamics in shallow mixed lakes (Reynolds, 1993; Aldridge et al., 1995; Phlips et al., 1995; Rucker et al., 1997). Thus, hurricanes are expected to have major effects on the plankton, altering the manner in which carbon is partitioned among the various trophic guilds and potentially changing resourc ...
... dynamics in shallow mixed lakes (Reynolds, 1993; Aldridge et al., 1995; Phlips et al., 1995; Rucker et al., 1997). Thus, hurricanes are expected to have major effects on the plankton, altering the manner in which carbon is partitioned among the various trophic guilds and potentially changing resourc ...
High mountain lakes
... winter. The formation and development of an ice and snow cover, which may last for many months, is a distinctive dynamical feature of these lake ecosystems. Finally, altitude also determines remoteness, if colonisation may be a general key process in assembling local communities of organisms, in hig ...
... winter. The formation and development of an ice and snow cover, which may last for many months, is a distinctive dynamical feature of these lake ecosystems. Finally, altitude also determines remoteness, if colonisation may be a general key process in assembling local communities of organisms, in hig ...
Primary production dynamics of dominant hydrophytes
... The floating, rooted, species N. peltata is characterized by a long flowering period and high biomass productivity [25,38,51]. In Lake Provala, it achieved maximum growth in summer and persisted till late fall, when individual plants could still be found in flower. The contents of organic matter (ar ...
... The floating, rooted, species N. peltata is characterized by a long flowering period and high biomass productivity [25,38,51]. In Lake Provala, it achieved maximum growth in summer and persisted till late fall, when individual plants could still be found in flower. The contents of organic matter (ar ...
Multi-Secular Lead (Pb) Contamination on a Regional Scale
... with results obtained from large size lakes such as the Saint-Point Lake. Indeed, Saint-Point lake belongs to the category of Jura large-size lakes where impacts from tourist activity are considerable. This economic activity has been accompanied by an important urban development and by the setting u ...
... with results obtained from large size lakes such as the Saint-Point Lake. Indeed, Saint-Point lake belongs to the category of Jura large-size lakes where impacts from tourist activity are considerable. This economic activity has been accompanied by an important urban development and by the setting u ...
Changes in the Trophic Status of Three Mountain Lakes – Natural or
... around lakes [5]. Many scientists have studied human influences on the lakes in the Tatra Mountains. During the last few decades, these studies have mainly concerned anthropogenic acidification [9-14]. However, very few such studies have assessed the influence of tourism development on the eutrophic ...
... around lakes [5]. Many scientists have studied human influences on the lakes in the Tatra Mountains. During the last few decades, these studies have mainly concerned anthropogenic acidification [9-14]. However, very few such studies have assessed the influence of tourism development on the eutrophic ...
Lake eutrophication and its ecosystem response | SpringerLink
... *Corresponding author (email: [email protected]) ...
... *Corresponding author (email: [email protected]) ...
Volcanic lakes 17
... Romans were the first populations to use these environments for water supplies. An example is Trajan’s aqueduct, later called dell’Acqua Paola which, even today, after a thousand years, conveys the water of Lake Bracciano directly into the Janiculum Fountain in Rome. Volcanic lakes were not only use ...
... Romans were the first populations to use these environments for water supplies. An example is Trajan’s aqueduct, later called dell’Acqua Paola which, even today, after a thousand years, conveys the water of Lake Bracciano directly into the Janiculum Fountain in Rome. Volcanic lakes were not only use ...
Analytical laboratory comparison of major and minor constituents in
... applied a similar procedure for the Si determination, and the disagreement must have come from different sources. As far as we know, one of the two participants that gave low Si levels filtered the subdivided crater lake water in situ with 0.45 mm membranes, followed by dilution with MilliQ w water; ...
... applied a similar procedure for the Si determination, and the disagreement must have come from different sources. As far as we know, one of the two participants that gave low Si levels filtered the subdivided crater lake water in situ with 0.45 mm membranes, followed by dilution with MilliQ w water; ...
Effects of Nutrient Enrichment on the Growth of the
... Two separate experiments were designed to determine if nutrient enhancement had an effect on Spirogyra growth. In one experiment, known quantities of Spirogyra were placed in 12 containers provided with mesh screens. The containers were separated into three groups and held in racks that were placed ...
... Two separate experiments were designed to determine if nutrient enhancement had an effect on Spirogyra growth. In one experiment, known quantities of Spirogyra were placed in 12 containers provided with mesh screens. The containers were separated into three groups and held in racks that were placed ...
Hypolimnetic metabolism in Lake Washington
... in a year. Intervals at each depth were selected to ensure that heat contents of underlying strata were increasing almost linearly, a procedure which facilitated the calculation of mean eddy diffusion (see below). The slopes of lines fit to the data consequently represent estim-atesof the rates at w ...
... in a year. Intervals at each depth were selected to ensure that heat contents of underlying strata were increasing almost linearly, a procedure which facilitated the calculation of mean eddy diffusion (see below). The slopes of lines fit to the data consequently represent estim-atesof the rates at w ...
Effects of Phosphorus Reduction on Water
... The effectsof areduction in total phosphorusconcentrationon the waterqualityand plankton communitystructure in a 86ha hypereutrophic sandpit lake withhigh internal phosphorusloading were assesi& by dosing an isolated 4.6ha section of the lake with 34,065 L (dose 10 mg Al.L.') of liquid aluminum sulf ...
... The effectsof areduction in total phosphorusconcentrationon the waterqualityand plankton communitystructure in a 86ha hypereutrophic sandpit lake withhigh internal phosphorusloading were assesi& by dosing an isolated 4.6ha section of the lake with 34,065 L (dose 10 mg Al.L.') of liquid aluminum sulf ...
Chemical Composition of the Extremely Alkaline Water within “Górka
... reservoir was the industrial waste disposal in the northern part of the quarry. The deposited wastes were origin from the processes of the aluminum oxide production from the non-bauxite raw material, and contain from 5% to 10% of the sodium carbonate (soda). In the last period of the waste disposal ...
... reservoir was the industrial waste disposal in the northern part of the quarry. The deposited wastes were origin from the processes of the aluminum oxide production from the non-bauxite raw material, and contain from 5% to 10% of the sodium carbonate (soda). In the last period of the waste disposal ...
Why bacteria are smaller in the epilimnion than in the - PUMA
... layer from surface to 20 m, roughly corresponding to the euphotic/epilimnetic zone. One lake is located in the temperate region at low altitude (Lake Maggiore, Northern Italy) and the other in the tropical region at high altitude (Lake Alchichica, Mexico). The two lakes differ in oxygen, phosphorus ...
... layer from surface to 20 m, roughly corresponding to the euphotic/epilimnetic zone. One lake is located in the temperate region at low altitude (Lake Maggiore, Northern Italy) and the other in the tropical region at high altitude (Lake Alchichica, Mexico). The two lakes differ in oxygen, phosphorus ...
Why bacteria are smaller in the epilimnion than in the hypolimnion
... The heterotrophic bacterial community is the most important biological component in the transformation and mineralization of organic matter in aquatic systems, and its biomass constitutes a large fraction of the total plankton biomass (Simon et al. 1992). It is recognized that bacteria mediate key p ...
... The heterotrophic bacterial community is the most important biological component in the transformation and mineralization of organic matter in aquatic systems, and its biomass constitutes a large fraction of the total plankton biomass (Simon et al. 1992). It is recognized that bacteria mediate key p ...
Causes of seasonality in the chemistry of a lake on the Orinoco
... mm. In most years, including the study period, 8 5-90% of the precipitation occurs from May to November, when most Boodplain lakes are connected with the river. The floodplain forest that grows on seasonally inundated land around Lake Tineo can be classified as seasonal vhrzea forest according to Pr ...
... mm. In most years, including the study period, 8 5-90% of the precipitation occurs from May to November, when most Boodplain lakes are connected with the river. The floodplain forest that grows on seasonally inundated land around Lake Tineo can be classified as seasonal vhrzea forest according to Pr ...
Macrophyte species composition reflecting water quality changes in
... tonnes) (Marttila 2002). Altogether, lake Hiidenvesi is inherently considerably turbid, due to the composition and resuspension of the bottom material (inorganic matter i.e. clay). The lake is a flow-through system, consisting of several separate basins quite different in reference to their morpholo ...
... tonnes) (Marttila 2002). Altogether, lake Hiidenvesi is inherently considerably turbid, due to the composition and resuspension of the bottom material (inorganic matter i.e. clay). The lake is a flow-through system, consisting of several separate basins quite different in reference to their morpholo ...
Comparison of Pelagic Rotifer Communities in Three Natural
... average density is attained by Gastropus stylifer, contributing 28% to rotifer abundance. Although this species is registered as a summer form (SerafimovaHadzishce 1957), in the pelagic zone of Lake Ohrid it is present throughout the year. The composition of the pelagic community of rotifers from La ...
... average density is attained by Gastropus stylifer, contributing 28% to rotifer abundance. Although this species is registered as a summer form (SerafimovaHadzishce 1957), in the pelagic zone of Lake Ohrid it is present throughout the year. The composition of the pelagic community of rotifers from La ...
Currawinya Lakes—a wetland of international
... Currawinya Lakes Ramsar site is one of Queensland’s most important inland wetland areas. This large Ramsar site of over 151,300 hectares is located in the state’s semi-arid south-west region within Currawinya National Park. It supports an amazing diversity of wetland types including the large Lake N ...
... Currawinya Lakes Ramsar site is one of Queensland’s most important inland wetland areas. This large Ramsar site of over 151,300 hectares is located in the state’s semi-arid south-west region within Currawinya National Park. It supports an amazing diversity of wetland types including the large Lake N ...
Changes in fish species composition and their abundance in Lake
... landings. The structure metrics considered included species abundance and composition, lengthfrequency and physico-chemical attributes. Results of the study showed that the fishery is currently dominated by the recently introduced common carp, Cyprinus carpio accounting for over 95% of the total fis ...
... landings. The structure metrics considered included species abundance and composition, lengthfrequency and physico-chemical attributes. Results of the study showed that the fishery is currently dominated by the recently introduced common carp, Cyprinus carpio accounting for over 95% of the total fis ...
White Fragrant Waterlily
... 1945, may still be growing along the lakeshore. Therefore, application techniques will be utilized to prevent non-target impacts. The application method usually used in this type of treatment is to apply the product to the surface of the floating leaves via a boat-mounted spray gun. In areas near th ...
... 1945, may still be growing along the lakeshore. Therefore, application techniques will be utilized to prevent non-target impacts. The application method usually used in this type of treatment is to apply the product to the surface of the floating leaves via a boat-mounted spray gun. In areas near th ...
The significance of sediment deposits in large lakes
... The distribution of surficial sediments in both Lake Ontario and Lake Huron have been described by Thomas et a!. (1972). These authors have clearly demonstrated that the sand-sized materials occur almost exclusively in the shallower shoreline and nearshore areas, where they form 32 and 38 per cent, ...
... The distribution of surficial sediments in both Lake Ontario and Lake Huron have been described by Thomas et a!. (1972). These authors have clearly demonstrated that the sand-sized materials occur almost exclusively in the shallower shoreline and nearshore areas, where they form 32 and 38 per cent, ...
Lecture 17-20 Nutrients and PP
... e.g. sugar phosphates, ATP, amino acids etc We generally model total nutrient pools, because over the residence time scale of nutrients in a lake most unavailable forms will be become available through decomposition or desorption Nutrient Retention by lakes Most lakes tend to retain nutrients--i.e. ...
... e.g. sugar phosphates, ATP, amino acids etc We generally model total nutrient pools, because over the residence time scale of nutrients in a lake most unavailable forms will be become available through decomposition or desorption Nutrient Retention by lakes Most lakes tend to retain nutrients--i.e. ...
Tracing phosphorus sources and P-cycling by oxygen isotopes in
... Lake Kinneret (The Sea of Galilee, Fig. 1) is located in northern Israel, in the Dead Sea Rift Valley. Average lake area is 169 km 2 and average volume is 4.3 x 10 9 m 3. The major inflow into Lake Kinneret (LK.) is the Jordan River. In addition, there are several smaller streams which flow into the ...
... Lake Kinneret (The Sea of Galilee, Fig. 1) is located in northern Israel, in the Dead Sea Rift Valley. Average lake area is 169 km 2 and average volume is 4.3 x 10 9 m 3. The major inflow into Lake Kinneret (LK.) is the Jordan River. In addition, there are several smaller streams which flow into the ...
Lake District
The Lake District, also known as The Lakes or Lakeland, is a mountainous region in North West England. A popular holiday destination, it is famous for its lakes, forests and mountains (or fells) and its associations with the early 19th century writings of William Wordsworth and the other Lake Poets.Historically split between Cumberland, Westmorland and Lancashire, the Lake District is now entirely in Cumbria. All the land in England higher than three thousand feet (914.4 m) above sea level lies within the National Park, including Scafell Pike, the highest mountain in England. It also contains the deepest and longest lakes in England, Wastwater and Windermere.