. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 110 120 130 140 150 160 170 180 190 200 Male Carapace Width (mm) Figure 5. Relationship between male carapace width and the weight of ejaculate stored in the vas deferens before (•) and after (O) mating. Males had one pleopod removed before mating. Ejaculate stored before mating was the weight of the unmated (full) vas deferens. Ejaculate stored after mating was the weight of the mated (spent) vas deferens. The equations for the regression lines are as follows: Y = - , r = , P < n = 335 (before matin
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 110 120 130 140 150 160 170 180 190 200 Male Carapace Width (mm) Figure 5. Relationship between male carapace width and the weight of ejaculate stored in the vas deferens before (•) and after (O) mating. Males had one pleopod removed before mating. Ejaculate stored before mating was the weight of the unmated (full) vas deferens. Ejaculate stored after mating was the weight of the mated (spent) vas deferens. The equations for the regression lines are as follows: Y = - , r = , P < n = 335 (before mating) and Y = - , r = , P < , ii = 335 (after mating). The before-mating slope is larger than the after-mating slope (l = , df = 669. P < ). larger ejaculates to their second mate than did medium- sized males (F,.., = , P = ) (Fig. 8). Overall, a significant decrease in the combined weights of both female spermathecae occurred across all three matings (FU5 = , P = ). A significant decrease occurred in the weight of large male ejaculates across all three matings (F28 = , P = ), but not in the ejaculate weights of small (F:.12 = , P = ) or medium (f:.,u = , P = ) males. Ejaculate replenishment after the first mating (ejaculate weight in mating 2 minus r. 80 90 100 110 120 Pre-molt Female Carapace Width (mm) Figure 6. Relationship between unmated, pre-molt female carapace width and the mean weight of both empty spermathecae within the female. Females were isolated from males during the pubertal molt to ensure that their spermathecae were empty of male-derived material. Y = — , r = , P = n = 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 B
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Keywords: ., bookauthorlilliefrankrat, booksubjectbiology, booksubjectzoology
