scholarly journals CAN CARBON DIOXIDE IN SEA WATER BE DIRECTLY DETERMINED BY TITRATION?

1916 ◽  
Vol 24 (1) ◽  
pp. 31-35
Author(s):  
Sergius Morgulis ◽  
Everett W. Fuller
Keyword(s):  
Carbon Dioxide ◽  
Sea Water

Carbon dioxide storage in Dead Sea water

2021 ◽  
Author(s):  
Mohammad Al-Harahsheh ◽  
Raghad Al-Khatib ◽  
Aiman Al-Rawajfeh
Keyword(s):  
Carbon Dioxide ◽  
Sea Water ◽  
Dead Sea ◽  
Carbon Dioxide Storage

Holding of Atlantic Mackerel (Scomber scombrus) in Refrigerated Sea Water

1977 ◽  
Vol 34 (3) ◽  
pp. 439-443 ◽  
Author(s):  
D. W. Lemon ◽  
L. W. Regier
Keyword(s):  
Carbon Dioxide ◽  
Sea Water ◽  
Fish Muscle ◽  
Sodium Content ◽  
Oxidative Rancidity ◽  
Dissolved Carbon ◽  
Atlantic Mackerel ◽  
Scomber Scombrus ◽  
Dissolved Carbon Dioxide ◽  
Lower Temperature

Refrigerated sea water proved to be an improved method of holding Atlantic mackerel (Scomber scombrus). The uniform lower temperature and reduction in available oxygen retarded the development of oxidative rancidity. Textural deterioration was also retarded. The sodium uptake from and the potassium loss to the sea water was not excessive, and taste panelists could not consistently identify samples with elevated sodium content. The addition of carbon dioxide to the RSW did not regularly affect the level of spoilage as monitored by the measurement of trimethylamine. The values, however, were low for all holding systems, even after 9 days. The presence of dissolved carbon dioxide in the fish muscle made the fish unacceptable for canning.

The Respiratory Metabolism of Dendrostomum cymodoceae Edmonds (Sipunculoidea)

1957 ◽  
Vol 8 (1) ◽  
pp. 55 ◽  
Author(s):  
SJ Edmonds
Keyword(s):  
Carbon Dioxide ◽  
Lactic Acid ◽  
Dissolved Oxygen ◽  
Blood Volume ◽  
Sea Water ◽  
Respiratory Metabolism ◽  
Anaerobic Conditions ◽  
Paraffin Oil ◽  
End Products ◽  
Wet Weight

The consumption of oxygen of Dendrostomum cymodoceae at 22'C in aerated sea-water varied from 4-5-5.5 μl/g (wet weight)/hr for adults to 20-31 μ/g/hr for juveniles. The production of carbon dioxide was 13-17 μ/g/hr (juveniles) and the R.Q. varied from 0.55 to 0.67 (juveniles). The rate of consunlption of oxygen decreased as the tension of the dissolved oxygen decreased. The oxygen combined with the pigment of the blood was 2.1 vols. of oxygen per 100 vols. of blood and the ratio of blood volume (ml) to total weight (g) of the animal was 0.47. D. cymodoceae was able to live under anaerobic conditions in sea-water for as long as 5 days and in paraffin oil for 4 days. The haemerythrin in the blood of animals kept under oil was found to be reduced after about 6 hr. Lactic acid was identified as one of the end-products of anaerobiosis. The concentration of lactic acid in the blood of animals living under anaerobic conditions increased after 60 hr from 7-12 to 46-61 μg/ml of blood. The ability to revert to anaerobiosis may have survival value for the species.

Determination of carbon dioxide and titratable base in sea water

1932 ◽  
Vol 4 (3) ◽  
pp. 309-313 ◽  
Author(s):  
David M. Greenberg ◽  
Erik G. Moberg ◽  
Esther C. Allen
Keyword(s):  
Carbon Dioxide ◽  
Sea Water

scholarly journals REGULATION OF THE HYDROGEN ION CONCENTRATION AND ITS RELATION TO METABOLISM AND RESPIRATION IN THE STARFISH

1926 ◽  
Vol 10 (2) ◽  
pp. 345-358 ◽  
Author(s):  
Laurence Irving
Keyword(s):  
Carbon Dioxide ◽  
Sea Water ◽  
Carbon Dioxide Production ◽  
Hydrogen Ion ◽  
Ion Concentration ◽  
Coelomic Fluid ◽  
Vital Function ◽  
Hydrogen Ion Concentration ◽  
Optimum Ph ◽  
Patiria Miniata

The normal reaction of the cœlomic fluid in Patiria miniata and Asterias ochraceus is pH 7.6, and of the cæca, 6.7, compared with sea water at 8.3, all without salt error correction. A medium at pH 6.7–7.0 is optimum for the cæca for ciliary survival and digestion of protein, and is maintained by carbon dioxide production. The optimum pH found for carbon dioxide production is a true one for the effect of hydrogen ion concentration on the tissue. It does not represent an elimination gradient for carbon dioxide. Because the normal excised cæca maintain a definite hydrogen ion concentration and change their internal environment toward that as an optimum during life, there exists a regulatory process which is an important vital function.

scholarly journals Factors Influencing Facilitation in Actinozoa. The Action of Certain Ions

1940 ◽  
Vol 17 (1) ◽  
pp. 61-73
Author(s):  
D. M. ROSS ◽  
C. F. A. PANTIN
Keyword(s):  
Carbon Dioxide ◽  
Skeletal Muscle ◽  
Neuromuscular Junction ◽  
Sea Water ◽  
Hydrogen Ion ◽  
Excitation Process ◽  
Nervous Impulse ◽  
Excess Calcium ◽  
Main Effect ◽  
Sensitization Process

1. The anaesthetic effects of carbon dioxide and magnesium added to sea water on Calliactis parasitica and Metridium senile have been studied. Magnesium first paralyses sense organs, but the main effect of both magnesium and carbon dioxide is a depression of neuromuscular facilitation. This prevents conduction of nervous impulses to the muscles in a way analogous to curarization of vertabrate skeletal muscle. 2. The chief effects of excess calcium, potassium and the hydrogen ion are increases in the size of the facilitated response to stimulation. The responses under potassium and the hydrogen ion are greatly prolonged and resemble the veratrine contracture of vertebrate skeletal muscle. 3. All the substances studied exert their chief effects at the neuromuscular junction. Analysis of their mode of action indicates that neuromuscular transmission in anemones involves two distinct processes, a process of excitation and a process of sensitization of the neuromuscular junction without which excitation of the muscle by the nervous impulse cannot be effective. This view is confirmed by examination of the relation of the size of the responses in normal animals to successive stimuli. The nature of the sensitization process and of the excitation process is discussed.

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