First quarter 2013 net loss amounted to US$ 20.1 million, while rate, net of fuel, increased 1.9% & adjusted EBITDA was up 25.7% from a year ago. "The positive factors resulting in adjusted EBITDA growth were partially offset by reduced container volume, higher stock-based compensation expense, mechanical issues on one of our vessels and increased vessel operating expenses. "In recent months, we have taken steps to improve the competitiveness of our Puerto Rico service by reducing sailings between Jacksonville and San Juan to once a week and moving our northeast service to Philadelphia," Mr.