Scientists are still trying to understand what the oil has done to the marshlands of southeastern Louisiana.
Sure, the catch is safe -- but that doesn't mean much when seafood prices are down and fuel costs are up.
"Since the spill, my shrimp production is off between 40 and 60% for the two years that I did work full time," said Barisich, who has both a shrimp boat and an oyster boat tied up at Yscloskey. "But my price is off another 50%, and my fuel is high: 60 cents a gallon higher than it's ever been."
Figures from Louisiana's Department of Wildlife and Fisheries tell a similar story.
The statewide oyster catch since 2010 is down 27% from the average haul between 2002 and 2009, according to catch statistics from the agency. In the Pontchartrain Basin, where Encalade and Barisich both work, the post-spill average fell to about a third of the pre-spill catch.
Barisich says oysters are barely worth the effort anymore.
"On the state ground -- on a perfect weather day, keep that in mind -- it's 20 sacks a day," he said. "Twenty sacks a day at $30 a sack is $600. $300 worth of fuel. $100 worth of other expenses and I pay the deckhand, I got $150 a day on a perfect day. It don't pay to go out."
And no boats going out means no fuel being sold at Frank Campo Jr.'s marina, down the bayou from Barisich's dock.
"If you don't burn it, I can't sell it to you," Campo says. "They're not doing very well with the crabs, and there's not a lot of oyster boats going out."
Demand for the oysters is off, too.
"You used to never ask the dealer if he wanted oysters," said Campo, whose grandfather started the marina. "You just showed up with them. Now, he'll call you and tell you if he needs 'em."
'Like somebody had poured motor oil all over'
Across the Mississippi from Pointe a la Hache, beyond the West Bank levees, lie some of the waterways that saw the heaviest oiling: Barataria Bay and its smaller inlets, Bay Jimmy and Bay Batiste.
Louisiana State University entomologist Linda Hooper-Bui tracks the numbers of ants, wasps, spiders and other bugs at 40 sites in the surrounding marshes, 18 of which had seen some degree of oiling.
She is part of a small army of researchers who have been trying to figure out what effect the spill will have on the environment of the Gulf Coast. Since 2010, she's recorded a sharp decline in several species of insects -- particularly spiders, ants, wasps and grasshoppers, which sit roughly in the middle of the food web.
They're top predators among insects but food for birds and fish.
Hooper-Bui said she expected their numbers to bounce back the following year: "Instead, what we saw was worse."
The reason, she suspects, is that the oil that sank into the bottom of the marsh after the spill hasn't broken down at the same rate as the crude that floated to the surface.
Instead, it's in the sediments, still giving off fumes that are killing the insects.
Some napthalenes -- crude oil components most commonly known for their use in mothballs -- appear to have increased since the spill, she said.
"They're volatile, and they're toxic," Hooper-Bui said. "And they're not just toxic to insects. They're toxic to fish. They're toxic to birds. They cause eggshell thinning in birds. We think this is evidence of an emerging problem."
Hooper-Bui said crickets exposed to the contaminated muck in laboratories die, and when temperatures were increased to those comparable to a summer day, "the crickets die faster."
By August 2011, the number of grasshoppers had fallen by 70% to 80% in areas that got oiled.
"By 2012, we were unable to find any colonies of ants in the oiled areas," she said.
Then on August 29, 2012, Hurricane Isaac hit southeastern Louisiana. The slow-moving storm sat over Barataria Bay for more than 60 hours as it crawled onto land.