. Bulletin. Science. 36 SOUTHERN CALIFORNIA ACADEMY OF SCIENCES I Juvenile ] Male ] Female Developing Female Ovigerous. ^ Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Month Fig. 1. Number of Grandidierella japonica collected in cores per m2 in Upper Newport Bay from July 1993'to June 1994 (N = 3; mean ± 95% for total number). size and proportion of each sex class of animals in the cores were tested for temporal variation by analysis of variance (ANOVA) and Student-Newman-Keuls multiple comparison test (Zar 1984). Proportion data were arcsine transformed before testing. Data that fa
. Bulletin. Science. 36 SOUTHERN CALIFORNIA ACADEMY OF SCIENCES I Juvenile ] Male ] Female Developing Female Ovigerous. ^ Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Month Fig. 1. Number of Grandidierella japonica collected in cores per m2 in Upper Newport Bay from July 1993'to June 1994 (N = 3; mean ± 95% for total number). size and proportion of each sex class of animals in the cores were tested for temporal variation by analysis of variance (ANOVA) and Student-Newman-Keuls multiple comparison test (Zar 1984). Proportion data were arcsine transformed before testing. Data that failed a test for normality were tested with Kruskal- Wallis ANOVA on ranks and Dunn's multiple comparison test (Zar 1984). The relationship between female length and brood size was tested by linear regression (Zar 1984). The relationships between juvenile length and female length or brood size were tested using Kendall's coefficient of rank correlation (Sokal and Rohlf 1995). Correlations between physical factors and biotic factors were tested by Pearson product moment correlation. Photoperiod data were generate as hours and minutes of daylight by a computer program called Sunny 2000 written by Lou Moccia. Results The mean total number of Grandidierella japonica in the cores differed by two orders of magnitude during the year (Fig. 1). The variability of the core data was high with the coefficient of variation ranging from 20% to over 100%, but a significant difference between months was detected (P ). There were significantly more developing females in Jan- uary than in March. No significant differences between months were detected for males or ovigerous females. Gravid females were found during all 12 months of the study. However, during. 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 Southern Califor
Size: 1987px × 1258px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookcollectionbiodiversity, booksubjectscience
