It was a recorded in a recent boat tour organized in Sitika Whalefest Science Symposium held from November 1-4 that there is a significant increase in the number of humpback whales of Alaska.

The increase is, however, slow but the rise is of course good news for whale watchers and the species itself. The baleen is seen moving in big number through the waters. They can create problems for boaters, hatcheries and herring fleet. These whales feed on krill and small fishes in saline water.

Jan Straley, the festival science Director and a University of Alaska and Professor who researched on marine mammals for about 30 years, said they are reproducing at a rate of 6 or 7% in Southeast Alaska.

"So that means for every hundred whales we get six or seven more whales the next year. And their mortality rate isn't that high, so we're getting more and more whales", she added, saying it has some problems linked to it the same time.

Whales get killed by biog ships but when it comes to small ships, it can be problem for the one inside them. Whales are big and when small boats hit them, it gives effect like hitting a wall.