Young Brothers’ cargo shipments between Oahu and six neighbor island ports were virtually flat in the April-June period but still managed to rise for the fifth quarter in a row on a year-over-year basis.

The interisland shipper said Wednesday that volume rose 0.3 percent to 34,024 “container/platform equivalents” from 33,936 CPEs in the year-earlier quarter.

Cargo volume increased at Hilo and Lanai, but fell on Maui, Kawaihae, Kauai and Molokai.

Strong construction activity on Lanai, which is 98 percent owned by billionaire Larry Ellison,  boosted the overall numbers due to ongoing shipments of materials for construction, renovations and improvements. Although Lanai cargo volume made up only 5 percent of total cargo volume in the second quarter, statewide second-quarter volume would have been down 2 percent without Lanai’s strong increase.

Agricultural cargo volume statewide rose 5.7 percent during the quarter from the year-earlier period but agricultural exports decreased at all ports except Hilo and Kawaihae.