I love crabmeat, it's one of my favorite foods. I've been eating it a lot since this oil spill was announced, because I'm worried that soon I'll never be able to have it again. Looks like the contamination is starting -- and before this is over, the oil may spread to the Chesapeake Bay, too:

BILOXI, Miss. — University scientists have spotted the first indications oil is entering the Gulf seafood chain — in crab larvae — and one expert warns the effect on fisheries could last “years, probably not a matter of months” and affect many species.

Scientists with the University of Southern Mississippi and Tulane University in New Orleans have found droplets of oil in the larvae of blue crabs and fiddler crabs sampled from Louisiana to Pensacola, Fla. The news comes as blobs of oil and tar continue to wash ashore in Mississippi in patches, with crews in chartreuse vests out cleaning beaches all along the coast on Thursday, and as state and federal fisheries from Louisiana to Florida are closed by the BP oil disaster.

"I think we will see this enter the food chain in a lot of ways — for plankton feeders, like menhaden, they are going to just actively take it in," said Harriet Perry, director of the Center for Fisheries Research and Development at the Gulf Coast Research Laboratory. "Fish are going to feed on (crab larvae). We have also just started seeing it on the fins of small, larval fish — their fins were encased in oil. That limits their mobility, so that makes them easy prey for other species. The oil's going to get into the food chain in a lot of ways."

Perry said researchers have not yet linked the hydrocarbons found in the crab larvae to the BP disaster, but she has little doubt it's the source. She said she has never seen such contamination in her 42 years of studying blue crab.

The Chesapeake Bay area is one of the most beautiful places in the country, and the inability of officials to control upstream pollution is a sad tale:

Government administrators in charge of an almost $6 billion cleanup of the Chesapeake Bay tried to conceal for years that their effort was failing -- even issuing reports overstating their progress -- to preserve the flow of federal and state money to the project, former officials say.

The cleanup, which had its 25th anniversary this month, seems doomed to miss its second official deadline for achieving major reductions in pollution by 2010.

The goal of rescuing North America's largest estuary was formally entrusted in 1983 to a group of federal, state and local authorities under the loose guidance of the U.S. Environmental Protection Agency. The task: controlling runoff from 4.8 million acres of farmland, installing upgrades at more than 400 sewage plants and managing the catch of more than 11,000 licensed watermen.

But the agencies charged with the cleanup have never mustered enough legal muscle or political will to overcome opposition from the agricultural and fishing industries and other interests.

Instead of strengthening their tactics, though, they tried to make the cleanup effort look less hopeless than it was.