scholarly journals FURTHER OBSERVATIONS ON THE CHEMICAL COMPOSITION OF WOODS HOLE SEA WATER—THE CHLORINE CONTENT AND SALT ANALYSIS

1928 ◽  
Vol 55 (6) ◽  
pp. 449-452
Author(s):  
IRVINE H. PAGE
Keyword(s):  
Chemical Composition ◽  
Sea Water ◽  
Chlorine Content

11. On the Chemical Composition of the Water composing the Clyde Sea Area

1888 ◽  
Vol 14 ◽  
pp. 422-427
Author(s):  
Adam Dickie
Keyword(s):  
Chemical Composition ◽  
Sea Water ◽  
Physical Conditions ◽  
Freshwater Stream ◽  
Marine Station ◽  
The Government ◽  
Government Grant ◽  
Clyde Sea ◽  
Sea Area

About the beginning of this year I was requested by a sub-committee of the Government Grant Committee* to determine some of the components of a series of samples of sea water, which were to be collected during the year at various parts and at different times in the Clyde sea area by the observers of the Scottish Marine Station. The collections were chiefly made under the immediate direction of Dr H. E. Mill. Since January, accordingly, I have been working at this, and have completed in all eighty-nine analyses, the results of which I now take the liberty of placing before this Society. There are various reasons why this paper should consist of little more than tables of results, one of which is that, having little or no experience in the science of oceanography, it would be presumptuous in me to draw conclusions from my results which would no doubt strike any one acquainted with that science at once. Another reason is that, though acquainted with some of the physical conditions under which the samples were taken, such as depth, temperature, place of collection, and date, I am quite ignorant of other conditions quite as important, if not more so, in my estimation, as, for instance, presence or absence of some freshwater stream near place of collection, state of tide, raiafall, 'c,—all conditions which would no doubt influence more or less materially the salinity of the water.

Growth and Chemical Composition of Chum (Oncorhynchus keta) and Sockeye (O. nerka) Salmon Fry Produced in Spawning Channel and Natural Environments

1970 ◽  
Vol 27 (2) ◽  
pp. 371-382 ◽  
Author(s):  
W. E. Vanstone ◽  
J. R. Markert ◽  
D. B. Lister ◽  
M. A. Giles
Keyword(s):  
Chemical Composition ◽  
Sockeye Salmon ◽  
Chum Salmon ◽  
Sea Water ◽  
Chemical Constituents ◽  
Total Weight ◽  
Oncorhynchus Keta ◽  
Natural Environments ◽  
Rates Of Change ◽  
Rate Of Increase

A comparison was made of the weights, lengths, weight–length relations, and chemical composition in migrating chum and sockeye fry resulting from eggs incubated and hatched in natural and artificial streams. Additionally, growth rates and rates of change in some chemical constituents were investigated in postmigrant channel- and river-hatched chum salmon confined to floating pens in sea water and in postmigrant sockeye salmon captured from their lake nursery area.There were no apparent differences in the lengths, weights, weight–length relations, or chemical composition between river- and channel-hatched chum salmon migrants. Nor was there any difference in the rates of change in length, weight, or chemical composition of these two groups of chums when confined to pens in sea water for 10 weeks after migration.There were differences in the weight–length relations, lipid content, and nitrogen content between channel- and river-hatched sockeye migrants. It is suggested, however, that these differences are due to the fact that the timing of the peaks of migration of these two groups of fish differed and that at any one time channel fry were physiologically different from river fry.Growth of the chum salmon in sea water and the sockeye in the lake was exponential and the slope of the weight–length relation, W = aLb, was approximately 3.25. During this growth period although total weight, moisture, solids, lipid, and nitrogen increased the rate of increase in moisture was less than the rates of increase in total weight or the other constituents.

scholarly journals Rainfall Distribution and the Possibility for Healthy and Fresh Drinking Water

2014 ◽  
Vol 4 (2) ◽  
pp. 22
Author(s):  
Alif Noor Anna
Keyword(s):  
Water Quality ◽  
Drinking Water ◽  
Chemical Composition ◽  
Fresh Water ◽  
Sea Water ◽  
Rain Water ◽  
Rainfall Distribution ◽  
Water Composition ◽  
Water Chemical Composition ◽  
Coast Region

The information of rain water quality in Indonesia is rarely recorded, where as it is important for the region in which the source of fresh water is unavailable. Rain water composition is mostly ascertained by water vapour and ions which are available in the atmosphere during vapouration. In fact the rain water composition of coast region is sea water like and rain water chemical composition of urban are then become HNO3 and HSO4, while rain water of active vulcanic region eventuality has a high sulphur-wombed so that its quality sulphuric-acid. For the region in which the source of fresh water is unavailable the rain water is previously sterilized. Sterilization is consecutively done by adding salts, killing all bacteria, spores, and filltering.

STUDY OF THE CONTENT OF AGGRESSIVE IONS IN THE ATMOSPHERE AND SEA WATER OF THE GELENDZHIK BAY

2020 ◽  
pp. 106-115
Author(s):  
V.O. Startsev ◽  
◽  
A.V. Slavin ◽  
E.V. Nikolaev ◽  
◽  
...  
Keyword(s):  
Capillary Electrophoresis ◽  
Chemical Composition ◽  
Standard Method ◽  
Sea Water ◽  
Total Concentration ◽  
Air Atmosphere

The method of capillary electrophoresis was used to measure the content of aggressive ions in 7 geographical points of the Gelendzhik bay in the air atmosphere and sea water during the period from September 1, 2019 to January 31, 2020. The results of measurements of the contents of K+, Na+, Mg2+, Ca2+, , Cl-, F- are compared with meteorological indicators at the time of measurement. It is shown that the total concentration of cations and anions in sea water corresponds to its salinity measured by the standard method. A high correlation between the chemical composition of samples in air and sea water was revealed.

The chemical composition of glacial melt water ponds and streams on the McMurdo Ice Shelf, Antarctica

1994 ◽  
Vol 6 (1) ◽  
pp. 17-27 ◽  
Author(s):  
S. J. De Mora ◽  
R. F. Whitehead ◽  
M. Gregory
Keyword(s):  
Chemical Composition ◽  
Sea Water ◽  
Austral Summer ◽  
Pond Water ◽  
Contributing Factors ◽  
Ice Shelf ◽  
Water Composition ◽  
Wide Range ◽  
Sediment Cover ◽  
Basin Brine

Melt waters cover c. 20% of the McMurdo Ice Shelf during the austral summer. The streams, ponds, and lakes up to 104 m2 in area occur in two types of terrain systems with differing morphological, chemical, and biological characteristics: pinnacled ice (PI) areas with sparse sediment cover, low relief, and little biomass; and ice-cored moraine (ICM) areas with 10–20 cm sediment cover, hummocky topography with up to 20 m relief, occasional mirabilite deposits, and dense benthic cyanobacterial mats. Pond water composition in the two areas is markedly different. PI area melt waters have low salinities, <2270 mg 1−1 total dissolved salts (TDS), and near neutral pH, mean = 7.8. The chemical composition of PI waters closely follows that of diluted sea water, suggesting that the release of ions from the sea ice matrix of the ice shelf is the major solute source. In contrast, ICM area melt waters have a wide range of salinities, up to 60 400 mg 1−1 TDS and alkaline pH, mean = 9.3. The chemical composition in c. 40% of the ICM ponds investigated did not resemble that of sea water, but had higher relative abundances of SO2−4, Na+, K+ and Ca2+. Leaching of local salt deposits, particularly mirabilite, weathering of surficial sediments, and morphological features promoting closed-basin brine evolution are possible contributing factors to the enrichments.

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