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Death by fire in the gulf

So-called burn boxes are torching oil from the water's surface at the sacrifice of turtles, crabs, sea slugs and other sea life.

June 17, 2010|By Kim Murphy, Los Angeles Times

Reporting from the Gulf of Mexico — Here on the open ocean, 12 miles from ground zero of the Deepwater Horizon oil spill, the gulf is hovering between life and death.

The large strands of sargassum seaweed atop the ocean are normally noisy with birds and thick with crustaceans, small fish and sea turtles. But now this is a silent panorama, heavy with the smell of oil.

There are no birds. The seaweed is soaked in rust-colored crude and chemical dispersant. It is devoid of life except for the occasional juvenile sea turtle, speckled with oil and clinging to the only habitat it knows. Thick ribbons of oil spread out through the sea like the strips in egg flower soup, gorgeous and deadly.

A few dead fish float in the water, though dolphin-fish, tuna, flying fish and the occasional shark can still be seen swimming near the surface, threading their way through the wavy, sometimes iridescent gobs of crude.

"This is devastating. I mean literally, it's terrible. All this should be pretty much blue water, and — look at it. It just looks bad," said Kevin Aderhold, a longtime charter fishing captain who has been taking a team of researchers deep into the gulf every day to rescue oil-soaked sea turtles.

"When this first happened, a lot of us were like, they'll cap that thing and we'll be out fishing again. Now reality's set in. Look around you. This is long-term. This'll be here for-ev-er."

And then it gets worse. When the weather is calm and the sea is placid, ships trailing fireproof booms corral the black oil, the coated seaweed and whatever may be caught in it, and torch it into hundred-foot flames, sending plumes of smoke skyward in ebony mushrooms. This patch of unmarked ocean gets designated over the radio as "the burn box."

Wildlife researchers operating here, in the regions closest to the spill, are witnesses to a disquieting choice: Protecting shorebirds, delicate marshes and prime tourist beaches along the coast by stopping the oil before it moves ashore has meant the largely unseen sacrifice of some wildlife out at sea, poisoned with chemical dispersants and sometimes boiled by the burning of spilled oil on the water's surface.

"It reflects the conventional wisdom of oil spills: If they just keep the oil out at sea, the harm will be minimal. And I disagree with that completely," said Blair Witherington, a research scientist with the Florida Fish and Wildlife Conservation Commission who has been part of the sea turtle rescue mission.

By unhappy coincidence, the same convergences of ocean currents that create long mats of sargassum — nurturing countless crabs, slugs and surface fish that are crucial food for turtles, birds and larger fish — also coalesce the oil, creating islands of death sometimes 30 miles long.

"Most of the Gulf of Mexico is a desert. Nothing out there to live on. It's all concentrated in these oases," Witherington said.

"Ordinarily, the sargassum is a nice, golden color. You shake it, and all kinds of life comes out: shrimp, crabs, worms, sea slugs. The place is really just bursting with life. It's the base of the food chain. And these areas we're seeing here by comparison are quite dead," he said.

"It's amazing. We'll see flying fish, and they'll land in this stuff and just get stuck."

Hardest hit of all, it appears, are the sea jellies and snails that drift along the gulf's surface, some of the most important food sources for sea turtles.

"These animals drift into the oil lines and it's like flies on fly paper," Witherington said. "As far as I can tell, that whole fauna is just completely wiped out."

* * *

The turtle rescue team sets out at 6 a.m. in the muggy warm stillness of the harbor at Venice, La. The researchers move into the open gulf about an hour later, past a line of shrimp boats deputized to lay boom along the coastal marshes.

Closer to the Deepwater Horizon site, the water takes on a foreboding gray pallor tinged with a rainbow-like sheen. Soon, the oil begins swirling around the boat and the seascape smells like an auto mechanic's garage.

Strewn among the oil and seaweed are human flotsam: an orange hardhat, a pie pan, a wire coat hanger, yellow margarine-tub lids, a black-and-green ashtray. The crew has found papers — long at sea on global currents — bearing inscriptions in Spanish, Arabic, Greek and Chinese.

The only sound that breaks the stillness is the deep thrum of the motors of the large charter boat and a small skiff carrying the turtle researchers. From dawn until nearly dusk, across sargassum islands that normally are alive with birds looking for crabs and snails — bridal terns, shearwaters, storm-petrels — only one bird is seen.

"What's amazing is there's so little bird life out here right now. Either they've moved on, or the oiling has had a tremendous impact," said Kate Sampson, a researcher with the National Oceanic and Atmospheric Administration who is part of the turtle rescue team.

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