Once you read the first paragraph, there is nothing to either dispute or support the claim about months with R’s........that was a waste of time.
Sorry I put that gun to your head to come on into the topic and pretend you've read it.
Because the snail has a predictable 12-month life cycle, its length at death offers a reliable estimate of when the oyster host died, allowing Florida Museum of Natural History researchers Nicole Cannarozzi and Michal Kowalewski to use it as a tiny seasonal clock for when people collected and ate oysters in the past... They found that island inhabitants were primarily harvesting oysters during late fall, winter and spring, which also suggested the presence of people on the island tapered off during the summer.