. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 376 P JIVOFF 6 r *>5 Small Medium Large Male Size Category Figure 8. Sum of contents of both spermathecae from the first (D), second (•). and third (M) females mated in succession by males in three size categories. The following are the results of paired contrasts between male size categories: first mating—large vs. small (P = ). large vs. medium (P = ), medium vs. small (P = ): second mating—large vs. small (P = ). large vs. medium (P = ), medium vs. small (P = ); and third mating—large vs.
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 376 P JIVOFF 6 r *>5 Small Medium Large Male Size Category Figure 8. Sum of contents of both spermathecae from the first (D), second (•). and third (M) females mated in succession by males in three size categories. The following are the results of paired contrasts between male size categories: first mating—large vs. small (P = ). large vs. medium (P = ), medium vs. small (P = ): second mating—large vs. small (P = ). large vs. medium (P = ), medium vs. small (P = ); and third mating—large vs. small (P = ), large vs. medium (P = ). and medium vs. small (P = ). Vertical bars are 1 standard error. als are paired. In blue crab, a female's fecundity in a single brood increases with size, but the relationship is highly variable (Pragere?«/.. 1990), especially in compar- ison with other crab species (Mines, 1982). The number of broods female blue crab produce varies seasonally and annually across the geographic range of the species (Ches- apeake Bay: Provenzano et ai, 1983: Johnson and Hester, 1989; Jones et ai, 1990: von Montfrans et al. 1990. South Carolina: Boylan and Wenner, 1993, Florida: Steele and Bert, 1994). Variation in fecundity per brood and 2 r O O O. O O O 0 5 10 15 20 Days between First and Second Mating -3 Figure 9. Relationship between ejaculate replenishment (total ejaculate passed in mating 2 - total ejaculate passed in mating 1) and the number of days between the matings. The regression equation is as follows: Y = - r = n = 16, P = 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, 187
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