basin-the entire geographical area drained by a river and its tributaries; an area characterized by all runoff being conveyed to the same outlet; flood control in the Missouri basin.
from the milkfish sip software side you can see check all active sip relevant settings in the web interface and or on the linux shell text console by browsing the status page or executing milkfish services status on the shell respectively
The pneumatic duct is a tube that runs between the esophagus and the swim bladder. Goldfish may gulp and burp air to alter the pressure in the swim bladder. It is unclear to what degree they actually use burping and gulping to decrease or increase the pressure in the swim bladder.