Arctic Fishing, Changing Wave Heights and a Living Fossil

Written by on April 18, 2013 in Marine Life

Daily Summary

Accord Would Regulate Fishing in Arctic Waters

So much of the ice melts every summer in the Arctic that the governments of the five countries with coastlines on the Arctic have decided it’s time to make an agreement to regulate commercial fishing in the area. Norway, Denmark, Canada, the United States and Russia will meet to discuss this issue later this month. Hopefully the discussions lead to an accord that would protect the open water until the fish stocks can be more fully studied.

USA's Little Diomede Island on the left and Russia's Big Diomede Island on the right in the Bering Sea.

USA’s Little Diomede Island on the left and Russia’s Big Diomede Island on the right in the Bering Sea. Photo credit: Dave Cohoe.

Changing wave heights projected as the atmosphere warms

Most research on climate change and coastal cities focuses on sea-level rise. Now, a new study reveals that as climate change continues, coasts will also feel the effects of changing wave height and behavior. Results showed that seven percent of the global ocean will experience an increase in average wave height while 25 percent will experience a decrease.

Coelacanth genome surfaces

Long thought to be extinct, a single African coelacanth was found off the African coast in 1938. Since then, many have been fascinated with this “living fossil” that dwells in caves and can grow up to five feet long. Now, researchers have decoded the coelacanth’s genome and confirmed that this fish is evolving significantly slower than every other fish and land vertebrate the team studied. The researchers suggest that the reason they haven’t evolved more is because they haven’t needed to; they live off the coast of Eastern Africa deep down where relatively little has changed over time. To learn more about the importance of this research, check out this article: Fish’s DNA May Explain How Fins Turned to Feet.

The African coelacanth is an ancient-looking fish with limb-like, lobed fins.

The African coelacanth is an ancient-looking fish with limb-like, lobed fins. Photo credit: Alberto Fernandez Fernandez.

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 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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