Respuesta :
"They were trying to locate new gold resources to replenish their dwindling currency" would be the best option, but it should be noted that they quickly shifted to trade.
I believe the answer is: They were looking for little more than trading opportunities.
At that time, the dutch was included in one of the biggest european nations that involved in global colonization. They had the ambition to obtain several parts of united states' territory and colonize it for themselves. But their fail to do so due to the strength of the british and french empire that already establish their base here.