An eel can only generate so much power, so essentially the voltage will drop so that the power will be lower.
600V at 0,1A will just turn to, say, 100V at 0,6A if the resistance between two points will be 1667 Ohm.
To keep voltage at 600V (and subsequently deliver 0,36A) you need a power source that can deliver 3,6 times more power.
In that sense, amperage is super important. We should always consider capabilities of the power source, this is big part of electrical grid engineering.
An eel can only generate so much power, so essentially the voltage will drop so that the power will be lower.
600V at 0,1A will just turn to, say, 100V at 0,6A if the resistance between two points will be 1667 Ohm.
To keep voltage at 600V (and subsequently deliver 0,36A) you need a power source that can deliver 3,6 times more power.
In that sense, amperage is super important. We should always consider capabilities of the power source, this is big part of electrical grid engineering.