Members of Congress from New England are asking the federal government for action they say will preserve the viability of the region’s groundfishing fleet. The letter, which was signed by 13 senators and representatives from Maine, Massachusetts, and New Hampshire, asks federal officials to fully cover the cost of onboard monitoring of fishing vessels. The delegation says the cost is too much to bear for many fishermen, given the dramatically reduced catch limits they face. The letter also urges regulators to decide soon whether fishermen can carry over a portion of their unused quota from one year to the next. The delegation’s letter was written to acting Secretary of Commerce Rebecca Blank.