. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. SETTING OF STARFISH 425 UJ to 10 o: UJ QD. I 6 II 16 21 26 31 5 10 15 20 25 30 4 9 JULY AUGUST SEPT. I 6 II 16 21 26 31 5 10 15 20 25 30 4 9 14 19 24 29 JULY AUGUST SEPTEMBER FIGURE 2. Numbers of starfish set on one hundred oyster shell-surfaces, recorded at the stations located at 10 different depths off Stratford Point. Long Island Sound, summer, 1938. low water mark, where the Housatonic River enters the Sound, and extending al- most to the middle of Long Island Sound to the depth of 100 feet. The collectors were placed a
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. SETTING OF STARFISH 425 UJ to 10 o: UJ QD. I 6 II 16 21 26 31 5 10 15 20 25 30 4 9 JULY AUGUST SEPT. I 6 II 16 21 26 31 5 10 15 20 25 30 4 9 14 19 24 29 JULY AUGUST SEPTEMBER FIGURE 2. Numbers of starfish set on one hundred oyster shell-surfaces, recorded at the stations located at 10 different depths off Stratford Point. Long Island Sound, summer, 1938. low water mark, where the Housatonic River enters the Sound, and extending al- most to the middle of Long Island Sound to the depth of 100 feet. The collectors were placed at all the stations on July 17, but no set occurred during that month (Fig. 2). The first set was found between July 1 and 5, but it was extremely light, occurring on only one collector at the 20-foot station. By July 12, however, star- fish set was found at all stations except the one at 100 feet, where the first set was recorded somewhat later. The setting at the deepest station was lighter than at any of the more shallow ones, and the duration of the setting was shorter. Nevertheless, the beginning of setting at such depths as 50, 60, and 70 feet coincided with that at the shallow stations. Furthermore, the period of heaviest setting at all stations occurred almost simultaneously (Fig. 2). The setting ended virtually at the same time at the shallow and at the deeper stations; the last few starfish were found on September 28 at 30-foot station and at the station located at 70 feet. In 1937, nevertheless, when the series of sta- tions in the Stratford Point area extended to a depth of only 70 feet, several single starfish were noticed on the collectors at deeper stations after the setting at more shallow stations had already ended. However, these individuals were so few that. 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
Size: 1755px × 1423px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthorlilliefrankrat, booksubjectbiology, booksubjectzoology
