Why Do Oysters Choose To Live Where They Could Be Eaten-_4339

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A series of experiments examining the feeding currents produced by adult oysters and how larvae actively settle on reefs helped solved the puzzle. Oyster feeding currents are actually very weak, so while they will readily eat larvae if captured,You are not allowed to view links. Register or Login, settling larvae are just not captured very often. In fact, when a comparison of being captured versus landing on a suitable location to grow was conducted, it was found that more than 95 percent of an oyster reef is a safe zone for larvae. Given this low cannibalism risk at settlement,You are not allowed to view links. Register or Login, future payoffs appear to have driven the evolution of a gregarious settlement cue that promotes group living in oysters.
                        
            
            
            
Why Do Oysters Choose To Live Where They Could Be Eaten?
            According to an  article in the May edition of Ecological  Monographs, a team of scientists has found that despite the risk of being eaten by cannibalistic adults, oyster larvae choose to settle in areas of high oyster concentrations to take advantage of future benefits of increased reproductive capacity when they mature.“Oyster larvae make a life or death decision when they get their one chance to select where to attach themselves to the bottom,You are not allowed to view links. Register or Login,” said University of Maryland Center for Environmental Science Chesapeake Biological Laboratory researcher Dr. Mario Tamburri. “Our research shows that oyster larvae are willing to risk predation by adult oysters to cash in on the benefits accrued by spending the remainder of their lives among a large number of their species.”
            The article,You are not allowed to view links. Register or Login,  “Mechanisms reconciling gregarious  larval settlement with adult cannibalism,” is in the May  edition of the Ecological Society of America’s journal Ecological Monographs.
            
            
The group set out to find:
            Using a series of laboratory experiments and field surveys, Tamburri has demonstrated that oyster larvae are attracted from a distance by the scent of adults from the same species. Yet, death for a larvae captured by a feeding adult is nearly certain at greater than 90 percent.
    If oyster larvae are attracted to settle on oyster reefs among adults of the same species because of the potential benefits to group-living
     If adult oysters will eat larvae of the same species
     How risky is gregarious settlement among cannibals
            Tamburri worked with UCLA researcher Drs. Richard K. Zimmer and Cheryl Ann Zimmer to examine this apparent paradox.