Dancing Sea Lion, Fisheries Management and the USS Guardian

Written by on April 2, 2013 in Marine Life

Daily Summary

Last piece of US ship removed from reef

Over the weekend, officials finally removed the last piece of the USS Guardian from Tubbataha Reef, 73 days after it ran aground. The ship was removed in four sections and now that it’s gone, work will shift to locating and removing debris from the surrounding area.

Whitetip reef shark at Tubbataha.

Whitetip reef shark at Tubbataha. Photo credit: Simon Hefti, Schweiz.

MSY not ideal solution for fisheries management

Maximum Sustainable Yield (MSY) is a common term in fisheries management. Fishing at MSY means catching the most fish possible while leaving enough to safely maintain the population. The recently revised Common Fisheries Policy (CFP) of the EU includes fishing at MSY, but some don’t think it’s a good solution. At a recent lecture, Professor Sidney Holt, one of the founders of fisheries science, explains that MSY is a terrible solution because it “ignores fundamental aspects of the ecosystem” such as natural death and predation.

California sea lion.

California sea lion. Photo credit: NOAA/SWFSC.

Sea lion defies theory and keeps the beat

Ronan, a California sea lion, is the first non-human mammal to be able to keep a beat. Scientists trained Ronan to bob her head in time with rhythmic sounds and eventually she was able to keep the beat of songs she had never heard before. This discovery indicates that “rhythmic ability” is more common in the animal kingdom than previously thought. Learn more about Ronan and watch her rock out in the following video:

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 MarineScienceToday.com. She holds marine science and biology degrees from the University of Miami's Rosenstiel School of Marine and Atmospheric Science. She is also a PADI diver and dog lover. .

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