The largest cause of death for right whales is entanglement in fishing gear, followed by other means of human interference, such as boat strikes. NEW SMYRNA BEACH — Not even halfway through the calving season for North Atlantic right whales, there’s already been some major ups and downs. Julie Albert, right whale coordinator for the Marine Resources Council, gave an update Thursday night on the calving season. Even with four calves birthed this season so far, there are only about 413 North Atlantic right whales left in existence. \"If we didn’t have our volunteer network helping us, we wouldn’t know a lot about what we do about right whales,\" Albert said.