. Bulletin of the Southern California Academy of Sciences. Science; Natural history; Natural history. Studies on Commensal Polychaetes 107. Figure 1. The relationship between the seasonal occurrence of Ophiodromus pugettensis (on Patiria miniata (dots) to water temperature (triangles) from July 1964 through June 1966. were noted: worms collected during the winter months averaged from to mm in length as compared to to mm in length during the summer months. Population changes of Ophiodromus pugettensis on Patiria miniata A total of 385 starfish was marked, of which 152, or
. Bulletin of the Southern California Academy of Sciences. Science; Natural history; Natural history. Studies on Commensal Polychaetes 107. Figure 1. The relationship between the seasonal occurrence of Ophiodromus pugettensis (on Patiria miniata (dots) to water temperature (triangles) from July 1964 through June 1966. were noted: worms collected during the winter months averaged from to mm in length as compared to to mm in length during the summer months. Population changes of Ophiodromus pugettensis on Patiria miniata A total of 385 starfish was marked, of which 152, or per cent, were recovered one of more times. Of the 152 recovered starfish, 19 were recovered two or more times (Table 2). Five starfish were collected three additional times (Table 2). The majority of the 152 recovered starfish were observed one to three days later. A total of 53 out of 104 starfish had the same population of worms present as was observed initially. There were 18 starfish which had a total increase of 31 worms, and 33 starfish which had a total decrease of 41 worms. In those 48 starfish which were recovered from 17 to 190 days later, the worm population was unchanged on 16 starfish, increased on 17 starfish, and decreased on 19. Only four of the 19 starfish recovered more than once had an un- changed worm population (Table 2). The number of worms on the 15 starfish either increased or decreased was largely dependent on what time of the year the starfish was recaptured. If the starfish had been marked during the winter months and recovered in the spring or summer, then the number of worms were less. Conversely, if the starfish was. 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 California Academy of Sciences. Los Angeles, Calif. : The Academy
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