Category Archives: marine mammals

Dailypress.com: Big hike in dolphin strandings has experts baffled

http://www.dailypress.com/news/science/dp-nws-dead-dolphins-20130803,0,7140056.story

Dead and dying dolphins are washing up on Virginia beaches in numbers that are baffling marine stranding experts, who are hustling to determine the extent and pinpoint the cause. Dolphin beachings aren’t unusual in the summer months, and in a typical July the state might get six such reports. But by Thursday the number for this July had soared to 49 – and Mark Swingle with theVirginia Aquarium & Marine Science Center in Virginia Beach said they have no idea why.

“We really don’t know – I wish we did,” said Swingle. The aquarium’s Stranding Response Team has been gathering dolphin remains from throughout the Virginia coast – including two from Buckroe Beach in Hampton on Tuesday and one from Gwynn’s Island in Mathews County on July 26 – for necropsy and tissue testing. He said it could take two to three weeks to get results.

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“In some ways, we’re trying to rush these tests to try and get a handle on what’s happening,” Swingle said. “We know there’s some sort of disease process going on. There’s no evidence on these animals of any sort of any human interactions.”
The number of reported dolphin strandings in Virginia for a typical year is about 64, he said. So far, the state has already seen 88. The unusual hikes were reported to the National Oceanic and Atmospheric Administration, or NOAA, which runs a network of stranding teams throughout the country.

So far, the only other state reporting an unusual uptick for July is New Jersey, said Maggie Mooney-Seus, spokeswoman for NOAA Fisheries. Their most recent number for New Jersey strandings is 20, but she said that figure might not reflect new strandings over the last couple of days. The state logged four strandings for July in 2012, and seven in 2011.

So far, she said, New York reported 15 dolphin strandings in July, Maryland seven and Delaware one. New York reported only one stranding July of last year, while Maryland and Delaware reported none. If enough unusually high numbers of strandings come in, she said, NOAA will assemble a team of experts to examine the data and necropsy results and determine if it qualifies as an “unusual mortality event.” The last such event in Hampton Roads occurred in 1987-1988, she said, and involved about 740 animals.

While that number was unusual, she said, dolphin beachings in general are not. “Keep in mind we do have strandings,” Mooney-Seus said. “They do occur regularly along our coasts and are caused by a number of reasons. If it’s a large population and living in close proximity, they’re not unlike deer populations or human populations where they can pass things to each other.”

Dolphin strandings can also be caused by entangling in fishing gear, ingesting plastics, toxic algal blooms or red tides, changes in water temperature and the rare vessel strike, as well as diseases like the distemper-like morbillivirus, which can also affect other marine animals such as seals, said Swingle. The stranding team hasn’t seen an uptick in stranding reports of other animals.

Determining the cause of death in a stranding can be hard, he said, especially if it’s not reported right away.
“The main thing is to call as soon as possible, because the sooner we get to the animals, the better the information we can get from them,” Swingle said. “It’s like the whole ‘CSI’ thing – if you have a fresh body, you can get a tremendous amount of information from it. If it sits in the sun for a day, it gets less valuable in terms of figuring out what’s happening.”
Seismic airguns. Meanwhile, environmentalists worry that even more such strandings could occur if geophysical survey companies are allowed to use seismic airguns to search for deposits of oil and gas buried deep beneath the sea floor, including off the coast of Virginia.

Airguns are typically towed behind ships and emit pulses of compressed air in a shock wave described as 100,000 times more intense than a jet engine. The airguns would boom every 10 seconds, day and night for days or weeks at a time.
To protest the plan, Oceana and the Sierra Club plan to make a big noise outside the Waterside Festival Marketplace in downtown Norfolk beginning at noon Saturday. Demonstrators are expected to use horns, vuvuzelas and the like to draw attention to the damage airguns can inflict on marine life and sensitive habitats.

An environmental impact statement released last year by the U.S. Department of the Interior estimated 138,500 whales and dolphins could be injured, deafened or possibly killed by the blasts over an eight-year period. “It’s loud, booming, and it disrupts their activity,” said Eileen Levandoski, assistant director of the Virginia chapter of the Sierra Club. “They depend on hearing to find their food. They can’t communicate with each other and they get lost. When you have a compromised animal with a bacteria or virus, they’re already weakened. You’re adding insult to injury.”

Swingle said seismic airguns have been used in other parts of the world, and “what those impacts may or may not be is open for question.” “Certainly anything that’s dangerous for marine mammals would be concerning,” he added.

President Barack Obama announced in March he was reversing a ban he’d placed on oil lease sales off most of the country’s coasts after the 2010 BP Deepwater Horizon drill rig exploded in the Gulf of Mexico, killing 11 workers and spilling nearly 5 million barrels of oil. Obama’s reversal re-opened the door to potential oil and natural gas exploration and drilling along the Atlantic coast, the eastern portion of the Gulf and part of Alaska.

Oceana and the Sierra Club want the Administration to reject proposals that include airgun use, and phase them out of U.S. waters. But if seismic testing is to occur, it should be done using the least harmful technology, with defined “no activity zones” to protect vulnerable marine habitats and species.

To report a stranding
If you see a beached dolphin or other marine animal, call the Stranding Response Program hotline 24/7 at 757-385-7575.

PNJ.com: Vessel to study the oil spill’s effects – Sea Shepherd, Ocean Alliance partner to research whales in Gulf

http://www.pnj.com/

Jul. 4, 2013 |

Written by Kevin Robinson

Ocean Alliance Founder Roger Payne and a group of environmental activists with the Sea Shepherd Conservation Society are making a port of call in Pensacola on board the RV Odyssey. The conservation group and the 93-foot research vessel is operating in the Gulf of Mexico collecting data on whales and sea-life in the gulf as it relates to the BP oil spill.

seashepard
Watching the Whales: Listen to Eliza Muirhead, discuss how 12 members of the Sea Shepherd Conservation Society and Ocean Alliance’s mission, Operation Toxic Gulf, will spend the remainder of July tracking sperm whales 100 miles off the coast of the Gulf of Mexico.

The Sea Shepherd Conservation Society and the Ocean Alliance have arrived in Pensacola with the 93-foot research vessel RV Odyssey. The group is making a port of call in Pensacola as part of its Operation Toxic Gulf mission in the Gulf of Mexico. / Tony Giberson/tgiberson@pnj.com

An International crew of the scientists and activists will be docking in Pensacola periodically this month while they study the effects of the BP oil spill. About 12 members of the Sea Shepherd Conservation Society and Ocean Alliance will spend the remainder of July tracking sperm whales 100 miles out in the Gulf of Mexico.

“The sperm whale is at the top of the food chain, so all of the toxins consumed by smaller animals eventually end up accumulating inside the sperm whales,” crew member Eliza Muirhead said. The crew of the Odyssey will examine changes in sperm whale health and behavior to get a snapshot of how toxins from the Deep Water Horizon oil spill and the chemical dispersant sprayed to contain it are affecting marine ecology. To help people understand their research and its ramifications, the crew allowed the public to tour the Odyssey on Wednesday. About a dozen people wandered the 93-foot craft, snapping pictures and asking questions.

The Sea Shepherd Conservation Society is a controversial environmental group featured on the popular Discovery Channel program “Whale Wars.” The group has gained notoriety for its aggressive tactics pursuing, harassing and sometimes boarding Japanese ships in the Southern Ocean conducting research by killing whales. Sea Shepherd contends the Japanese whaling operation is illegal and immoral. “My brother and nephew watch ‘Whales Wars,’ so when they told me they were coming down I decided to come along,” said Wendy Hauman. “I got to talk to the crew and the scientists. It’s cool to see what they do in person and see live some of what they do on TV.”

The team has a full laboratory on the ship to begin preliminary analysis of the data collected during the expedition. Lead researcher Robert Payne said it could be up to a year before the findings of the study are published.
Payne, the founder of Ocean Alliance, has studied whale behavior since 1967. He and colleague Scott McVay are credited for discovering that humpback whales sing songs.

Payne said that by partnering, Ocean Alliance and the Sea Shepherds are able to accomplish goals they could never have achieved alone. “The value of this study is that normally scientists work in their own little world,” Payne said. “People who take action work in a whole different world. Those two worlds are finally getting together.”
Payne said that by pairing the research-minded Ocean Alliance and the action-oriented members of the Sea Shepherds, the expedition could more fully investigate an environmental disaster that he said has been largely marginalized by special interests and the federal government.

“The mission of one side is to confuse things and our job is to clarify,” Payne said. “We’re dealing with a problem you can’t see, so it’s easy for people to pretend it doesn’t exist.” The research expedition will be documented online on the Sea Shepherd Conservation Society and Ocean Alliance Facebook pages.

Special thanks to Richard Charter

E&E: OFFSHORE DRILLING: Landmark settlement aims to protect Gulf whales and dolphins

Jeremy P. Jacobs, E&E reporters
Published: Friday, June 21, 2013

Conservation groups, the Interior Department and oil and gas representatives yesterday reached a landmark settlement that will place restrictions on the use of seismic surveys to protect vulnerable populations of whales and dolphins in the Gulf of Mexico.

The settlement focuses on the use of high-intensity air guns, which fire air into the water every 10 to 12 seconds for weeks and months at a time. The technology is critical to prospecting in the Gulf of Mexico for new places to drill.

Advocates including the Natural Resources Defense Council, Center for Biological Diversity, Sierra Club and Gulf Restoration Network allege that the blasts — which are sometimes as intense as dynamite — threaten bottlenose dolphins and sperm whales, both of which have experienced die-offs since the 2010 Deepwater Horizon spill.

“Today’s agreement is a landmark for marine mammal protection in the Gulf,” said Michael Jasny of NRDC. “For years this problem has languished, even as the threat posed by the industry’s widespread, disruptive activity has become clearer and clearer.”

The environmental groups filed their lawsuit in 2010 in a Louisiana federal court. They claimed that the blasts disrupted the whales, dolphins and other ocean species that rely on sound to feed, mate and navigate, though industry groups strongly dispute that characterization.

The environmentalists claimed that Interior violated the Marine Mammal Protection Act and Endangered Species Act when it permitted the use of air guns without preparing an environmental impact statement.

Several industry groups, however, pushed back on the lawsuit and NRDC’s claims. Moreover, Chip Gill, president of the International Association of Geophysical Contractors, classified the settlement as a “huge victory” because his members were already implementing many of its terms.

The lawsuit, he said, contained “numerous outlandish and unsubstantiated allegations. The environmental groups can’t prove them, so they are settling.”

Gill said a worst-case scenario would have been for the court to throw out Interior’s 2004 National Environmental Policy Act review. If that happened, permits could have been revoked or a hold could have been placed on future permits. None of that is part of yesterday’s settlement, he said.

Sperm whales and bottlenose dolphins have experienced significant and unexplained die-offs in the Gulf of Mexico since the 2010 spill. Environmentalists have sought to point the finger at the spill, but government scientists are continuing to study the cause, and the air guns are seen as a confounding variable in solving the problem.

The settlement prohibits the use of air guns in biologically important areas, such as the DeSoto Canyon, which is particularly important to endangered sperm whales. The canyon is also critical to Bryde’s whales.

Under the agreement, industry also may not use air guns along coastal areas during the main calving season of bottlenose dolphins between March 1 and April 30, and the settlement requires a minimum separation distance between surveys.

Additionally, the settlement, which still must be approved by the court, requires the use of listening devices to make sure the air guns aren’t disrupting marine mammals.

“The settlement not only secures new protections for whales and dolphins harmed by deafening air guns but also establishes a process for investigating alternatives to air gun surveys,” said Ellen Medlin of the Sierra Club, referring to a mandated Bureau of Ocean Energy Management report on new standards and multiyear research project to be developed on an less harmful alternative.

“As a result,” Medlin said, “the settlement not only delivers immediate benefits for Gulf marine mammals, but also takes the first step towards a long-term solution.”

Special thanks to Richard Charter