. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 10 15 Time (days) 20 Figure 3. Growth rates for Triops longicaudatus from four desert pools near Moab. Utah, during the summer months of 1993. Each point represents an average wet mass of 10-20 animals in each pool. oxygen and temperature treatments were statistically identical whether the entire growth curve (linearized using log time) or only the linear portion of the curve was used. There was a positive linear relationship between num- ber of eggs and wet mass (Fig. 6). At a Po2 of 200 torr. the brood pouches of an 800-mg
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 10 15 Time (days) 20 Figure 3. Growth rates for Triops longicaudatus from four desert pools near Moab. Utah, during the summer months of 1993. Each point represents an average wet mass of 10-20 animals in each pool. oxygen and temperature treatments were statistically identical whether the entire growth curve (linearized using log time) or only the linear portion of the curve was used. There was a positive linear relationship between num- ber of eggs and wet mass (Fig. 6). At a Po2 of 200 torr. the brood pouches of an 800-mg animal contained an average of 50 more eggs than those of a 300-mg animal. Rearing temperature (mean cyclic temperature of either ° or °C) had no effect on the relationship between body mass and egg number. The slope of the regression line for animals raised at elevated ambient oxygen tensions (200 torr) was significantly greater than that of the regres- sion line for animals raised at oxygen saturation (125 torr O::/> CO 600 ] 400 200- • -High temp cycle x-Low temp cycle. X X X X x x 10 15 20 Time (days) 25 30 Figure 4. Effect of cyclic temperature regimes on growth rate of Triops Each point represents the mean wet mass of all animals raised in a single pool (see Materials and Methods for details). Squares represent mean wet mass for animals raised at a mean temperature of °C. cycled between 19° and 31°C (r = - , r2 = ). Crosses represent mean wet mass for animals raised at a mean temperature of °C. cycled between 19" and 29°C (y = - , r2 = ). Positions ot regression lines were significantly different (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 Biol
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