. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. £00 720^ 360 120 DRY. 0-7*0 12 24 36 60 72 12 24 36 44 60 72 EXPOSURE IN HOURS FIGURE 2. Inulin and thiocyanate loss and thiocyanate uptake by land crab (Gecarcinus lateralis), ghost crab (Ocypode albicans) and mangrove crab (Goniopsis cruentatus) exposed to a variety of environmental chloride concentrations. were made in each case for SCN and inulin, or SCN alone, removed from the animal in taking samples. Standard deviations are not represented. They were relatively small except in very low and high concentrations. Suffici
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. £00 720^ 360 120 DRY. 0-7*0 12 24 36 60 72 12 24 36 44 60 72 EXPOSURE IN HOURS FIGURE 2. Inulin and thiocyanate loss and thiocyanate uptake by land crab (Gecarcinus lateralis), ghost crab (Ocypode albicans) and mangrove crab (Goniopsis cruentatus) exposed to a variety of environmental chloride concentrations. were made in each case for SCN and inulin, or SCN alone, removed from the animal in taking samples. Standard deviations are not represented. They were relatively small except in very low and high concentrations. Sufficient numbers of animals, 4 to 18, were exposed to each of the experimental conditions to achieve statistically significant ("P" value of less than .01) separation by the "t" test. Determinations were made on fresh animals which were discarded at the com- pletion of the 72-hour measurements. In land crabs on sand, inulin clearance indicates continuing filtration with the rate of inulin loss slowly and steadily decreasing as blood level falls. Thiocyanate loss, comparable to inulin loss at first, decreases completely as blood concentration levels off, suggesting that SCN is re-absorbed from the fluid which continues to be filtered. The constancy of blood chloride concentration and of blood SCN levels after 24 hours indicates re-absorption of filtered water. In distilled water, inulin is cleared at the same rate as on sand, but SCN blood level falls more rapidly. 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
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Keywords: ., bookauthorlilliefrankrat, booksubjectbiology, booksubjectzoology
