. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 462 RALPH I. SMITH TABLI-: III Chloride values, Tvdrminne populations Chloride of media (range) Mean cl. of media Number of worms tested Mean cl. of body fluid Std. dev. of body fluid cl. srm. /I. 23 21 12 18 16 6 12 5 5 (chloride == ) at the inshore limit of the ecological range in th
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 462 RALPH I. SMITH TABLI-: III Chloride values, Tvdrminne populations Chloride of media (range) Mean cl. of media Number of worms tested Mean cl. of body fluid Std. dev. of body fluid cl. srm. /I. 23 21 12 18 16 6 12 5 5 (chloride == ) at the inshore limit of the ecological range in the local salinity gradient. For present purposes it is important to note that although the waters of the inner Baltic are free of tidal salinity fluctuations, they are subjected annually to drastic lowering of salinity at the spring thaw. This presents certain unique problems and may be the crucial factor in checking the extension of the range of N. diversicolor into lower salinities. It is a striking fact that in the inner Baltic N. diversicolor seems to be limited at summer salinities of not less than 4%o, even though a number of associated brackish-water species, which in Britain and. TVARMINNE REGION ( • ) HENRIKSBERG ( • ) KROGARVIKEN ( » ) SKOGBY-LAPPVIK 345 CHLORIDE OF MEDIUM, GM/L. FIGURE 3. Chloride regulation in three populations of N. diversicolor from the vicinity of Tvarminne, southern Finland. Encircled groups of points indicate groups retested after two weeks; group A (inexplicably low) fell into line upon retest, group B was retested at a higher salinity at B'. Initial results on group A omitted from 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
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Keywords: ., bookauthorlilliefrankrat, booksubjectbiology, booksubjectzoology
