The effect of osmotic and ion-osmotic stresses on the mortality of rainbow trout (Salmo gairdneri)
نویسندگان
چکیده
منابع مشابه
The Effect of Osmotic and Ion-osmotic Stresses on the Mortality of Rainbow Trout (salmo Gairdneri)
I. The possibility that costs of Ionic and osmotic regulation are different in fish was assessed using mortality rates of rainbow trout exposed to an ionically active substance, sodium chloride and a non-electrolyte. mannitol, in the ambient water. 2. A 24.hr LC,, of 175 mOsm was calculated from data for fish exposed to sodium chloride concns of 400.450. 500. 550. 600,650 and 700 mOsm. 3. Simil...
متن کاملThe effect of osmotic and ion-osmotic stresses on the blood and urine composition and urine flow of rainbow trout (Salmo gairdneri).
Changes in urine and plasma concentrations (sodium, potassium, magnesium, calcium and total osmotic) and urine production were determined in fish exposed to various concentrations of an ionically active substance, sodium chloride, and a non-electrolyte, mannitol, as well as freshwater. Responses occurred for the most part over a short crisis period preceding establishment of new stable conditio...
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چکیده ندارد.
15 صفحه اولOn the Mechanisms of Sodium Ion Transport by the Irrigated Gills of Rainbow Trout (Salmo gairdneri)
Sodium uptake by rainbow trout gills has been investigated with a small-volume system enabling rapid, successive flux measurements in different solutions. Sodium influx obeys a Michaelis-Menten type relation, with a K(m) of 0.46 mM, and uptake proceeds unimpaired in the absence of penetrating counter-ions. This suggests a coupled cation exchange. Ammonia output is about the same as the Na(+) in...
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cement is an essential ingredient in the concrete buildings. for production of cement considerable amount of fossil fuel and electrical energy is consumed. on the other hand for generating one tone of portland cement, nearly one ton of carbon dioxide is released. it shows that 7 percent of the total released carbon dioxide in the world relates to the cement industry. considering ecological issu...
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ژورنال
عنوان ژورنال: Comparative Biochemistry and Physiology Part A: Physiology
سال: 1983
ISSN: 0300-9629
DOI: 10.1016/0300-9629(83)90583-2