Dolphin Baby boom

Hello world,
The number of dolphins around the Misissippi Sound have increased in the past few years. Lance Miller of the San Diego Zoo's Institute for Conservation Research attributes this to Hurricane Katrina. He believes that the decrease in fishing boats led to a spike in the food source and allowed more calves to be born than usually. Also, boat traffic kills lots of dolphins every year, so that also helps there be lots of calving mothers. Unfortunately since lots of calves died in the Hurricane, this maybe just a small spike to make up for lost time. Either way, it's nice to see the dolphin population on the rise.
Here's the link;
http://news.discovery.com/animals/dolphin-births-hurricane-katrina.html