. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 332 D. B. CARLON AND J. P. EBERSOLE gories. Independence among species was tested with the log-likelihood statistic. small medium large Results Reproductive features Female P. longicarpus (mean carapace length = mm) were almost twice as large as P. annulipes (mean carapace length = mm) and much smaller than P. pollicaris (mean carapace length = mm) (Fig. 1). Mean size of females correlated with size at maturity: the smallest P. annulipes found with eggs was mm, whereas the smallest ovigerous P. longicarpus w
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 332 D. B. CARLON AND J. P. EBERSOLE gories. Independence among species was tested with the log-likelihood statistic. small medium large Results Reproductive features Female P. longicarpus (mean carapace length = mm) were almost twice as large as P. annulipes (mean carapace length = mm) and much smaller than P. pollicaris (mean carapace length = mm) (Fig. 1). Mean size of females correlated with size at maturity: the smallest P. annulipes found with eggs was mm, whereas the smallest ovigerous P. longicarpus was mm. The species with the largest females, P. pollicaris. matured at the largest size; the smallest ovigerous female was mm carapace length. Males of P. annulipes and P. longicarpus were significantly larger than conspecific fe- males (Student's Mest for paired comparisons, / = , df = 380, P < ; and / = , df = 1012, P < , respectively), but there was no difference in size between sexes in P. pollicaris (Fig. 1; t = , df = 171, P= ). The probability of reproduction does not increase with size in the smallest species, P. annulipes, but does increase with size in the two larger species: P. longicarpus and P pollicaris (Fig. 2). In P. annulipes there was no difference in the percentage of ovigerous females in the small, me- dium, and large size categories (G2 = , df = 2, P = ). When all three categories are combined, of the P. annulipes females were ovigerous during 1990. In contrast, there was a strong effect of size on the probability Frequency (%) 100 40 0 40 100 40 20 0 20 40 20 10 0 10 20 X= (04) !Min w/eggs= P. annulipes .-. n^ X= () d n X= () nULUu Min w/e"s= 3'8 P. longicarpus Q DUnrn(jBnDH— U X= () d X= () Mm. w/eggs= nnllnDTInBnnHn Ml P. pollicaris Q lHflHHHQnna " uQUU LJQ "DLJU u" X= (85) nHu U D " " u U cf 10 15 20 25 30 Carapace
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Keywords: ., bookauthorlilliefrankrat, booksubjectbiology, booksubjectzoology
