Norway-based krill harvester and processor Aker Biomarine reported a hike in revenue and a reduction in its profit margin during the second quarter, partly due to higher fuel costs and low production at its Houston factory.

The group, controlled by Norwegian billionaire Kjell Inge Rokke, reported revenue of $88.6 million (€78.9 million), a 21 percent increase compared to the same period last year.

It posted a net loss of $2.4 million (€2.1 million) and an operating profit of $6.2 million (€5.5