An account's Ether balance might be 7.1 ETH in the Ethereum Mainnet, 2.39 ETH in Ropsten testnet. You can move ETH from one network to another only with a specially setup exchange or bridge. Also, you can't transfer tokens from networks holding value such as Ethereum mainnet to networks not holding value, i.e., testnets like Ropsten. The same is true of OCEAN token balances.