I certainly could not. That is something physicists do, but I am a biologist. Physicists could surely do that. I also think that there is a lack of data to explain the phenomenon. Among other things, we know the different factors that can affect eelgrass. They have basically all been named: turbidity, ice action, currents and salinity of less than five parts per thousand, which is insufficient for eelgrass. Temperature can also be a factor. All of those factors are important and must be monitored. We have no data on eelgrass salinity and temperature. We are considering a problem where the freshwater is at unusually high levels and contains many irregularities.
I think that those elements have not been measured. We spoke about wasting disease. This pathogen cannot survive in low levels of salinity. We do not even know the levels of salinity in the eelgrass beds. If those levels are regularly under 10 parts per thousand, then that pathogen is not present. It cannot survive in such a low level of salinity.
Therefore, a lot of data still needs to be gathered to link the possible causes and understand the physical aspect of the phenomenon, i.e., the various flow rates and turbidity levels. I would suggest you start with that.