In Oakland, the port has seen a higher number of ships at anchor, and ships are off schedule from Los Angeles.
The Pacific Maritime Association wants a federal mediator to assist with contract talks with the ILWU.
Employers "hopeful that this will allow us to move toward conclusion of an agreement in the near term."
Carriers are benefiting from lower oil prices, but face capacity overhang.
Hueneme CEO says port could offer relieve valve for congestion.
Analysts from IHS Maritime & Trade predict continued increases in fatal incidents in both the shipping and passenger sectors.