SEAWATER EXCHANGE AND RIVER WATER INFLOW ESTIMATED BY PHYTOPLANKTON COMMUNITIES IN NAGATSURA-URA LAGOON, MIYAGI PREFECTURE

2020 ◽  
Vol 76 (4) ◽  
pp. 63-71
Author(s):  
Kenji KANEKO ◽  
Motoyuki HARA
Keyword(s):  
River Water ◽  
Water Inflow ◽  
Phytoplankton Communities ◽  
Miyagi Prefecture ◽  
Seawater Exchange

scholarly journals Implementation of Decision Support System for Moscow River Water Supply System Management

2018 ◽  
Author(s):  
Keyword(s):  
Water Resources ◽  
Water Supply ◽  
River Water ◽  
Supply System ◽  
Water Supply System ◽  
Water Inflow ◽  
Information Support ◽  
System Management ◽  
Water Reservoirs ◽  
Moscow River

Centre of registry and cadaster provides with the developed DSS information support for management of the Moscow River water supply system since 2009. Information support includes hydrological and water resources analysis, inflow predictions, evaluation of the current state of MRWSS and development of recommendations for water reservoirs management pattern for a next operation term. The developed recommendations are regularly presented at the sessions of interdepartmental working group of the Moscow-Oka river basin authorities. Analysis of current hydrological state is provided on the base of GIS-technologies. Water inflow is calculated by ECOMAG hydrological model describing the full hydrological cycle of the Moscow River watershed. The technique for prediction of water inflow to reservoirs, based on use of a set of weather scenarios, is presented. Water regimes for 5 water reservoirs and downstream branches of the Moscow, Ruza, Ozerna and Istra rivers for a next planning term, are developed with use of VOLPOW water resources system simulation model. Finally the ways of improvement of the discussed DSS for Moscow River water supply system management are proposed.

The Dynamics of River Water Inflow to the Arctic Ocean

2000 ◽  
pp. 281-296 ◽  
Author(s):  
I. A. Shiklomanov ◽  
A. I. Shiklomanov ◽  
R. B. Lammers ◽  
B. J. Peterson ◽  
C. J. Vorosmarty
Keyword(s):  
Arctic Ocean ◽  
River Water ◽  
Water Inflow ◽  
The Arctic ◽  
The Arctic Ocean

Hydro-climatic drivers of land-based organic and inorganic particulate micropollutant fluxes: The regime of the largest river water inflow of the Mediterranean Sea

2020 ◽  
Vol 185 ◽  
pp. 116067
Author(s):  
Hugo Delile ◽  
Matthieu Masson ◽  
Cécile Miège ◽  
Jérôme Le Coz ◽  
Gaëlle Poulier ◽  
...  
Keyword(s):  
Mediterranean Sea ◽  
River Water ◽  
Water Inflow ◽  
Climatic Drivers ◽  
The Mediterranean

scholarly journals Examination of the Quality Indicators of Haraz River Water, Inflow and Outflow of Water of Fish Farm

2021 ◽  
Vol 15 (3) ◽  
pp. 31
Author(s):  
Azam Ali Khademi ◽  
Mahsa Najafi ◽  
Shahrzad Khoram Nejadian ◽  
Babak Moghadas
Keyword(s):  
Water Quality ◽  
River Water ◽  
Quality Indicators ◽  
Pollution Index ◽  
Water Inflow ◽  
Fish Farms ◽  
Haraz River ◽  
Allowable Range ◽  
Comparison Of The Results ◽  
The Impact

This study was an attempt to examine the quality indicators of Haraz River water inflow and outflow of water of fish farms. This study aimed to prove and assess the water pollution status of Haraz River and investigate the impact of fish farms on river water quality. Sampling was performed in two seasons of summer and autumn of 2015 in seven stations of river water and inflow and outflow of farms water. Quality pollution index includes (temperature, phosphate, nitrate, nitrite, ammonia, electrical conductivity, BOD, COD, PH Were measured. Comparison of the results with the allowable values of Iran code and waste water standards showed that the factors in all samples and both seasons were in the allowable range and the rate of these indicators in autumn is higher than the summer. The amount of ammonia, carbon and total phosphate in summer is higher than the autumn. The findings of the results reveal that the proper quality and cleanliness of Haraz River water in the study area show that the activity of farms doesn’t have a significant effect on the quality index of Haraz River water.

Competitive growth characteristics betweenMicrocystis aeruginosaandCyclotellasp. accompanying changes in river water inflow and their simulation model

2016 ◽  
Vol 64 (3) ◽  
pp. 123-132 ◽  
Author(s):  
Masahiro Mikawa ◽  
Koichi Sugimoto ◽  
Yoshimasa Amano ◽  
Motoi Machida ◽  
Fumio Imazeki
Keyword(s):  
Simulation Model ◽  
River Water ◽  
Growth Characteristics ◽  
Water Inflow ◽  
Competitive Growth

Silicon Substitution for Calcium in the Shell of the Fingernail Clam, Musculium Transversum Studied By X-Ray Analysis

1980 ◽  
Vol 38 ◽  
pp. 560-561
Author(s):  
Judith A. Murphy ◽  
Anthony Paparo ◽  
Richard Sparks
Keyword(s):  
Carbonic Anhydrase ◽  
River Water ◽  
Food Chains ◽  
Well Water ◽  
Shell Formation ◽  
X Ray ◽  
Molluscan Shell ◽  
Fingernail Clams

Fingernail clams (Muscu1ium transversum) are dominant bottom-dwelling animals in some waters of the midwest U.S. These organisms are key links in food chains leading from nutrients in water and mud to fish and ducks which are utilized by man. In the mid-1950’s, fingernail clams disappeared from a 100-mile section of the Illinois R., a tributary of the Mississippi R. Some factor(s) in the river and/or sediment currently prevent clams from recolonizing areas where they were formerly abundant. Recently, clams developed shell deformities and died without reproducing. The greatest mortality and highest incidence of shell deformities appeared in test chambers containing the highest proportion of river water to well water. The molluscan shell consists of CaCO3, and the tissue concerned in its secretion is the mantle. The source of the carbonate is probably from metabolic CO2 and the maintenance of ionized Ca concentration in the mantle is controlled by carbonic anhydrase. The Ca is stored in extracellular concentric spherical granules(0.6-5.5μm) which represent a large amount of inertCa in the mantle. The purpose of this investigation was to examine the role of raw river water and well water on shell formation in the fingernail clam.

Photoacclimation of natural phytoplankton communities

2016 ◽  
Vol 542 ◽  
pp. 51-62 ◽  
Author(s):  
JR Graff ◽  
TK Westberry ◽  
AJ Milligan ◽  
MB Brown ◽  
G Dall’Olmo ◽  
...  
Keyword(s):  
Phytoplankton Communities ◽  
Natural Phytoplankton

The Study on Phytoplankton Diversity from Godavari River Water

2012 ◽  
Vol 3 (4) ◽  
pp. 119-121
Author(s):  
I. B. Ghorade I. B. Ghorade ◽  
◽  
Thakur V. R Thakur V. R ◽  
S.S. Patil S.S. Patil
Keyword(s):  
River Water ◽  
Phytoplankton Diversity ◽  
Godavari River
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