Just thinking... There may be a budding biologist or someone on this board who needs an experiment for their masters or doctorate research paper OR maybe just someone who has a burning need to know.
It would seem that the viability of fish egg transport could probably be somewhat replicated in a controlled environment� Use pet ducks/geese, maybe first feed them in an artificial tank loaded with fish eggs and then later feed them in a artificial tank with none. Or maybe even just use feathers and fans and etc. from one container to the next with different time periods exposed to the fan to simulate flight / travel time. I don't know. I�m not a scientist or biologist. I'm just thinking�