ISSN:
1573-1561
Keywords:
Chromatography
;
intestinal content
;
migration
;
odorants
;
olfaction
;
Salmo salar
;
skin mucus
;
salmon
;
homing
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
,
Chemistry and Pharmacology
Notes:
Abstract Samples of skin mucus and intestinal contents were collected from groups of salmon presmolt from three Norwegian rivers. The supernatants obtained after precipitation were gel-filtered on a Sephadex G-25 column, which revealed peaks with absorption at 280 nm. Fractions incorporating a group of retarded peaks were examined by two-dimensional thin-layer chromatography. The spots obtained on the thin-layer plates were sorted out by means of position, intensity, and fluorescence properties.R f values for the assumed identical spots from each group were subjected to statistical analysis. In one of the chromatography systems, 8 spots of 24 from samples of skin mucus and 6 spots of 27 from intestinal contents show larger standard deviations (SD) ofR f than may be expected when a substance is chromatographed repeatedly. These SDs fit a linear relationship of SD to chromatography length by a probability of less than 0.01. The results indicate a molecular variation between the groups which could be a source for population-specific odorants. If these substances are used in chemical communication, they can provide the specific clues needed for a successful return to the home river.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00984017
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