Releasing a Dolphin, Changing Food Webs and Tracking Whales

Written by on May 14, 2013 in Marine Life, Whales & Dolphins

Daily Summary

S. Korea To Release Dolphin Back Into Wild

After four years in Seoul Grand Park Zoo, a 13-year-old dolphin is being released back into the wild. The female Indo-Pacific bottlenose dolphin was transported to a pen off a South Korean island last weekend for “adjustment training” prior to being released. The cost for her release was paid for by donations raised by animal rights activists.

Indo-Pacific bottlenose dolphin.

Indo-Pacific bottlenose dolphin. Photo credit: Laaude at fr.wikipedia.

Seabird Bones Reveal Changes in Open-Ocean Food Chain

By studying the bones of Hawaiian petrels, researchers have found that the birds’ eating habits have changed with the growth of industrialized fishing. These birds spend the majority of their lives feeding in the open waters of the Pacific ocean. The researchers found that as industrialized fishing expanded, the birds began to eat prey lower on the food chain. This suggests that humans are changing open-ocean food webs on a large scale and that fishing doesn’t only affect the targeted species.

Hawaiian petrel.

Hawaiian petrel. Photo credit: NOAA.

Using earthquake sensors to track endangered whales

In an efficient and inexpensive study, researchers are using earthquake sensor data to interpret whale calls. Analyzing the whale calls found in earthquake sensor data has allowed researchers to track fine-scale swimming behavior for the first time. This data will be instrumental in helping to protect endangered whales from ship strikes. Listen to the following clip from University of Washington to hear what fin whales and earthquakes sound like!

Copyright © 2013 by Marine Science Today, a publication of Marine Science Today LLC.

About the Author

About the Author: Emily Tripp is the Publisher and Editor of She holds marine science and biology degrees from the University of Miami's Rosenstiel School of Marine and Atmospheric Science and a Master of Advanced Studies degree in Marine Biodiversity and Conservation from Scripps Institution of Oceanography. When she's not writing about marine science, she's probably running around outside or playing with her dog. .


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