Cargo volumes through the Port of Long Beach climbed 7.6 percent in July compared with the same month last year, while the Port of Los Angeles traffic slipped about 1.5 percent.

Imports at the Port of Long Beach increased nearly 13 percent compared with the same month last year, according to figures released Thursday. Exports were up 6.2 percent. The port handled more than 560,000 containers in total.

With larger ships calling at the Port of Long Beach more often and additional service lines starting in late 2012, Long Beach cargo volumes increased more than 13 percent in the first seven months of 2013 compared with the same period last year.

Though the Port of Los Angeles posted a slight slip of 1.48 percent compared with the same month last year, it was the busiest cargo month for the port in 2013. About 716,000 containers moved through the port in July. Imports were down 0.3 percent and exports down 4.8 percent compared with a year ago.