. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. CRUSTACEAN CHEMOSENSITIVITY 529 35 30 o UJ CO CO UJ CO 25 20 15 10. 12345 TIME (SEC) FIGURE 1. Receptor specificity in P. intcrruptus antennule. Symbols represent an averag- ing of responses to glycine and DL alpha amino-n-butyric acid (cross), L-aspartic acid and L-glutamic acid (open circles), and taurine (open triangles). Four preparations responded pri- marily to monocarboxylates (A), and seven to dicarboxylates (B). Taurine was more stimula- tory in (B). Stimulus is one drop of M of a given amino acid. seconds; res
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. CRUSTACEAN CHEMOSENSITIVITY 529 35 30 o UJ CO CO UJ CO 25 20 15 10. 12345 TIME (SEC) FIGURE 1. Receptor specificity in P. intcrruptus antennule. Symbols represent an averag- ing of responses to glycine and DL alpha amino-n-butyric acid (cross), L-aspartic acid and L-glutamic acid (open circles), and taurine (open triangles). Four preparations responded pri- marily to monocarboxylates (A), and seven to dicarboxylates (B). Taurine was more stimula- tory in (B). Stimulus is one drop of M of a given amino acid. seconds; responses to 10~2 M lasted up to one minute. Laverack (1964) and Ache (1972) reported antennule receptor responses of similar duration to high amino acid concentrations in Panulirus argus and Homarus aniericanus. Response la- tencies were not critically examined and were often masked by mechanoreceptive activity, but in general, activity ensued within seconds of stimulus introduc- tion. Chemoresponses were reversible by washing the preparation with sea water. Cancer antennarius—chemoreceptive acuity. The response threshold of both dactyl and maxilliped receptors was 5 X 10~5 M of the mixture. Response char- acteristics were similar to those reported by Case (1964) in an extensive study on. 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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