. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. Seawater Control Mytilus Odor Geukensia Odor Figure 1. Comparison of mean (±SEM) frequencies for the initial tests for responses to odor. No differences were found between responses to odors. iors consisted of climbing tank walls, eating, and resting with intermittent antennule flicking. Response to odors in sequential presentation after familiarization Two crabs, fed with blue mussel, made approaches to their familiar effluent. One crab, fed with ribbed mussel. died during the familiarization period; another crab, fed with
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. Seawater Control Mytilus Odor Geukensia Odor Figure 1. Comparison of mean (±SEM) frequencies for the initial tests for responses to odor. No differences were found between responses to odors. iors consisted of climbing tank walls, eating, and resting with intermittent antennule flicking. Response to odors in sequential presentation after familiarization Two crabs, fed with blue mussel, made approaches to their familiar effluent. One crab, fed with ribbed mussel. died during the familiarization period; another crab, fed with blue mussel, stopped eating 3 weeks into the training period. Activity scores from the remaining 12 crabs were analyzed for increases in sensitivity to familiar prey odor. A Friedman test determined that responses were significantly different (P < , Table I) to pre-familiarization seawater, post-familiarization seawater. unfamiliar mussel effluent, and familiar effluent (Fig. 2). Bonferroni post hoc analysis demonstrated that the response to familiar effluent was significantly greater than to all of the other water samples and effluents (P < ). No other significant differences were found (Table 1). Figure 3 shows the responses of crabs familiarized with Mytilus or with Geukensia to familiar and unfamiliar odors. Wilcoxon signed ranks tests determined that responses dif- fered to familiar and unfamiliar odors for both familiariza- tion groups (P < , Table 1). Bonferroni post hoc com- parison determined that each familiarization group could detect the difference between the odors that were familiar and the odors that were unfamiliar to their training groups (P ). Response to odors in simultaneous presentation after familiarization Of the 8 crabs familiarized with Mytilus, 4 approached familiar prey effluent; of the 8 familiarized with Geukensia, Table I Responses to effluents Odors compared Method ot comparison P value Initial odors Pre-familiarization a
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Keywords: ., bookauthorlilliefrankrat, booksubjectbiology, booksubjectzoology
