The 47 foot long fishing vessel Janice Ruth II sank at its berth at Valdez, Alaska.   The vessel was discovered listed over to starboard submerged at the docks.  No one was on board at the time of the sinking.   Authorities placed an oil boom and sorbent pads around the vessel to contain the pollution released.  The Janice Ruth II has a capacity for 500 gallons of diesel and 24 gallons of hydraulic oil, but no details to how much was on board at the time.  Reports state the vessel was bank-owned.