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Unexpected effects of tsunami debris on Hawaii wildlife

March 16, 2013

 

Tsunami debris washing up in N. America far higher than expected

 

http://ajw.asahi.com/article/0311disaster/quake_tsunami/AJ201303160050

 

By HARUFUMI MORI/ Staff Writer


Some 2,000 tons of drifting debris from the earthquake and tsunami disaster in Japan two years ago have washed up on the shores of North America so far, and estimates are that more than 100,000 accumulated tons will have reached the West Coast by June.


The latest estimates, released March 15 by the Environment Ministry, are the result of updated simulation results of tsunami debris set adrift in the Pacific Ocean on March 11, 2011.


The ministry's previous calculations, released in November, were based on wind measurement data taken through June 2012. The latest update is based on data taken through September.


The new estimates said an accumulated 30,000 tons will have washed ashore on North America by April, 105,000 tons by June and 221,000 tons by October. The previous projection said only 33,000 tons will have reached North America by June 2013.


Many drifting objects are still traveling slowly eastward between the Hawaiian Islands and North America, ministry officials said.


The drifting objects are estimated to total about 1.5 million tons. Although some of them will wash ashore in the United States and Canada, winds and tides will drive others back westward and scatter them broadly across the North Pacific, the ministry officials said.

 

 

March 11, 2013

 

Japanese tsunami debris makes its way into Hawaiian birds

http://edition.cnn.com/2013/03/11/us/hawaii-japan-tsunami-debris/index.html

 

By Kyung Lah, CNN

March 11, 2013 -- Updated 2028 GMT (0428 HKT)

hawai.jpg

 

Hawaii deals with Japan's tsunami debris

STORY HIGHLIGHTS 

  • Debris apparently from 2011 Japan tsunami is washing ashore in Hawaii
  • Hawaii Wildlife Fund organizes beach cleanups
  • NOAA has been studying the effects of debris on fish

The Big Island, Hawaii (CNN)-- Your first view of Kamilo Beach on Hawaii's Big Island is of majestic rock, postcard-worthy waves and miles of uninhabited beach. But look closer at the sand and you see specks of blue, yellow and white plastic.

A piece of a bottle cap. A corner of a milk crate. Half a toothbrush.

Kamilo Beach is part of the devastating legacy of the March 2011 Japan tsunami.

"It's disheartening to come out here and see all this marine debris in an area that's otherwise so remote, debris that's washing up from other countries," said Megan Lamson, debris project coordinator for the Hawaii Wildlife Fund.

hawai-2.jpgPhotos: Japan quake, tsunami anniversary

hawai-3.jpg2012: Japan's endless cleanup battle  


Hawaii is in a unique geographical spot, the center of the Pacific Ocean, to witness the impact of the Japan tsunami. Debris swirls from Asia to the continental United States through Hawaii. The islands are, in effect, a comb of the Pacific.

The nonprofit Hawaii Wildlife Fund said marine debris has been a problem for years for the island state and tsunami debris has made things worse. According to Japan, 1.5 million tons of tsunami debris floated away. The wildlife fund organizes beach cleanups along Hawaii's shorelines and struggles to keep up with the marine debris, made up primarily of plastic.


Lamson pulled out part of a beer crate that read "Exclusively for Kirin Beer" in Japanese. She also found a Suntory Whisky bottle stamped "Japan." Lamson also found a small vitamin drink container with Japanese text. Since fall, the wildlife fund and the National Oceanic and Atmospheric Administration have found refrigerators, freezers, buoys and even an intact fishing boat, all with Japanese text.


But most disturbing to Lamson are a couple of soft plastic bottles with bite marks. "Marine life in the ocean are mistaking plastic for their natural food," Lamson said.


Lamson may suspect it, but Lesley Jantz, a NOAA fishery biologist with the observer program, can confirm it. Jantz has been studying the impact of marine debris in fish.


In her lab, Jantz sliced open the stomach of a lancetfish for CNN. You may never have heard of the lancetfish, a sometimes 4- to 6-foot long fish with enormous teeth. But bigeye and yellow fin tuna eat lancetfish. Tuna ends up on our plates.


Jantz pulled out a 12 by 12 piece of indigestible black plastic. "It would be difficult to pass through the system," said Jantz. "I've found several fish with the same black plastic bag, just like this, even larger. If it gets to a certain size, the fish is going to feel like it's full."


Jantz conducted a study that included 64 fish of varying species. Twelve percent of them, she said, contained plastic. When she looked just at lancetfish, 45% had plastic. "One concern that we have and don't know is if any chemicals from the plastic are absorbed into the tissue of the fish, which is a problem if consumed by a fish that we consume. That's definitely the next step, what is the impact?"


Across the island in David Hyrenbach's lab, the impact of plastic debris is apparent among the animal species he studies: birds. Hyrenbach cut open the bellies of some albatross for CNN. Plastic pieces spilled out of the belly of a 2-month-old albatross. Eighty percent of the stomach was packed with plastic.


Hyrenbach, an assistant professor of oceanography at Hawaii Pacific University, pulled out a small bottle top. "Toothpaste top?" he said. "No, cap of a medicine tube." He reached into the stomach again. "Oh, it's a brush, you see?" There were the unmistakable bristles of a hairbrush.


"Morally, this is terrible. How is this possible? Majestic, far ranging, beautiful birds, in a pristine place of the pacific, the northwest Hawaiian islands, you open them up and this is what you find," said Hyrenbach.


He grabbed a box, packed with toy soldiers, lighters and brushes. He explained that he pulled all the items out of albatross from Hawaii. "Every bird I looked at had plastic. Some had a little bit. Some had a lot. Everybody we looked at had plastic."


NOAA said most of the debris affecting the island cannot be tracked to any particular country, even Japan, because the plastic is often so weathered and broken by the time it hits Hawaii. "We don't really know the full impact of this type of debris. It adds to an existing problem that we have across the world," said NOAA Pacific Islands Regional Coordinator Carey Morishige. "But it is quite eerie to see an item you think may have come from Japan, someone's home, to sit on a beach thousands of miles away. It brings home the fact beyond the marine debris issue this is first and foremost a human tragedy." It should serve as a reminder, Morishige said, that "the land and the oceans are incredibly connected."

 

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