scholarly journals Relationship between Diurnal Vertical Migration of Cyanobacteria and the Nutrient Dynamics in a Shallow Eutrophic Lake Shore

2019 ◽  
Vol 55 (2) ◽  
pp. 49-57
Author(s):  
KOTARO SUGAWARA ◽  
MEGUMU FUJIBAYASHI ◽  
YUKIO ENDA ◽  
MIHO ARAKI ◽  
KUNIHIRO OKANO ◽  
...  
Keyword(s):  
Vertical Migration ◽  
Nutrient Dynamics ◽  
Eutrophic Lake ◽  
Lake Shore ◽  
Diurnal Vertical Migration ◽  
Shallow Eutrophic Lake

Testing aluminum addition as a tool for lake restoration in shallow, eutrophic Lake Sønderby, Denmark

Hydrobiologia ◽  
2003 ◽  
Vol 506-509 (1-3) ◽  
pp. 781-787 ◽  
Author(s):  
Kasper Reitzel ◽  
Jonas Hansen ◽  
Henning S. Jensen ◽  
Frede Ø. Andersen ◽  
Kjeld S. Hansen
Keyword(s):  
Lake Restoration ◽  
Eutrophic Lake ◽  
Aluminum Addition ◽  
Shallow Eutrophic Lake

scholarly journals Diurnal vertical migration of some cladocerans in relation to the physico-chemical factors in a fish pond

1970 ◽  
Vol 20 (2) ◽  
pp. 147-154 ◽  
Author(s):  
AS Bhuiyan ◽  
S Akhter ◽  
MMA Quddus
Keyword(s):  
Key Words ◽  
Vertical Migration ◽  
Fish Pond ◽  
Chemical Parameters ◽  
Surface Layers ◽  
Diurnal Vertical Migration ◽  
Physico Chemical ◽  
Chemical Factors ◽  
Diurnal Movement ◽  
The Relationship

Diurnal vertical migration of four genera of cladocerans, namely Diaphanosoma sp., Daphnia sp., Moina sp. and Bosmina sp., during March to December, 2007 showed that the number of Diaphanosoma sp. was 501 units/1 in the surface layers, 172 units/l in the middle layers and 190 units/l in the bottom layers. The yearly number of Daphnia sp. in surface, middle and bottom layerss was 362 units/l, 46 units/l and 189 units/l respectively. In surface, bottom and middle layers, the number of Moina sp. was 159, 71 and 32 units/l, respectively. Bosmina sp. was 78 units/l in surface, 31 units/l in the middle and 33 units/l in the bottom layers. The number of Diaphanosoma sp., Daphnia sp., Moina sp., Bosmina sp., were 455, 149, 259 and 358 units/l, respectively in the morning, 63, 176, 142, 43 units/l at noon and 107, 55, 28, 59 units/l, respectively in the evening. Throughout the study period the cladocerans were always abundant near the surface during morning and evening. Among the factors responsible for the diurnal movement of cadoceran, light played the most important factor. The relationship between the physico-chemical factors and the cladoceran occurrence in the pond was also explored. Key words: Cladocera; Diurnal migration; Physico-chemical parameters; Fish pond DOI: http://dx.doi.org/10.3329/dujbs.v20i2.8975 DUJBS 2011; 20(2): 147-154

Review of information on diurnal vertical migration in the bignose shark (Carcharhinus altimus)

1996 ◽  
Vol 47 (4) ◽  
pp. 605 ◽  
Author(s):  
RC Anderson ◽  
JD Stevens
Keyword(s):  
Vertical Migration ◽  
Pelagic Zone ◽  
Benthic Species ◽  
Diurnal Vertical Migration

The bignose shark (Carcharhinus altimus) has been described in the literature as a deep-benthic species. Evidence is presented that C. altimus is a diurnal vertical migrator. It occurs near the bottom in about 90-500 m by day. At night, at least some individuals move into shallower water or up into the pelagic zone.

Growth and buoyancy of Microcystis aeruginosa Kütz. emend. Elenkin in a shallow eutrophic lake

1973 ◽  
Vol 184 (1074) ◽  
pp. 29-50 ◽  
Keyword(s):  
Microcystis Aeruginosa ◽  
Thermal Stratification ◽  
Control Mechanism ◽  
Euphotic Zone ◽  
Eutrophic Lake ◽  
Growth Surface ◽  
Progressive Deterioration ◽  
Exponential Increase ◽  
Shallow Eutrophic Lake ◽  
Buoyancy Control

The growth of Microcystis aeruginosa in a small, shallow eutrophic lake was studied during three consecutive seasons. The alga was shown to be continuously present in the plankton throughout the period. Exponential increase in the population was confined to a 5 to 8-week period, following the onset of thermal stratification. Populations appeared to originate near the bottom of the euphotic zone. The possession of an effective light-dependent buoyancy control mechanism enabled the alga to maintain station, though progressive deterioration of the photic conditions forced populations to rise and become dissipated within the epilimnion. Buoyancy increased after the cessation of growth; surface blooms often led to the physical removal of a majority of colonies to lee shores. Surviving colonies became generally less buoyant after the lake destratified in autumn.

Spatial variations of methane emission in a large shallow eutrophic lake in subtropical climate

2017 ◽  
Vol 122 (7) ◽  
pp. 1597-1614 ◽  
Author(s):  
Qitao Xiao ◽  
Mi Zhang ◽  
Zhenghua Hu ◽  
Yunqiu Gao ◽  
Cheng Hu ◽  
...  
Keyword(s):  
Methane Emission ◽  
Eutrophic Lake ◽  
Spatial Variations ◽  
Subtropical Climate ◽  
Shallow Eutrophic Lake
Sign in / Sign up

Export Citation Format

Share Document