. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. COMPARATIVE SALT LOSS IN THREE NEREIDS 341 inflow is stopped. Commonly, such worms swell when returned to the original media, suggesting that a concentration of the body fluids has occurred ; this hypothe- sis would seem to require that the urine be hypotonic to the body fluid. Sugar solutions of 85-90% the osmotic pressure of the adaptational sea water caused very little volume change, suggesting that they allowed a net osmotic inflow equal to the urinary output. .1000 OJ Q- .0100 o 3 in O o cn .0010 .000 2 x 450 2 x 300 2
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. COMPARATIVE SALT LOSS IN THREE NEREIDS 341 inflow is stopped. Commonly, such worms swell when returned to the original media, suggesting that a concentration of the body fluids has occurred ; this hypothe- sis would seem to require that the urine be hypotonic to the body fluid. Sugar solutions of 85-90% the osmotic pressure of the adaptational sea water caused very little volume change, suggesting that they allowed a net osmotic inflow equal to the urinary output. .1000 OJ Q- .0100 o 3 in O o cn .0010 .000 2 x 450 2 x 300 2 x 300 270 2 x 300 (Dist water) 2 x 150 2 x 150 I- 2 x 30 2 x 30 270 (Dist. water (Dist. water 54 ,. 100 Wet weight in mg. 1000 FIGURE 5. Salt loss into salt-free urea solutions, after adaptation to sea water diluted to 15, 10, 5 and 1 g. Cl/L., equivalent to NaCl concentrations of 450, 300, 150 and 30 urea molarity set in relation to 2 X salt molarity. Note especially that salt loss level after adaptation to 10 g. Cl/L. (approximately milliosmolarity 2 X 300) increases with urea concentration, prob- ably as an injury effect. Thin lines marked (Na) are calculated as 2 X the Na-millimolarity as determined by flame photometry; the rest by Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Marine Biological Laboratory (Woods Hole, Mass. ); Marine Biological Laboratory (Woods Hole, Mass. ). Annual report 1907/08-1952; Lillie, Frank Rattray, 1870-1947; Moore, Carl Richard, 1892-; Redfield, Alfred Clarence, 1890-1983. Woods Hole, Mass. : Marine Biological Laboratory
Size: 1503px × 1662px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthorlilliefrankrat, booksubjectbiology, booksubjectzoology
