The fourth anniversary of the start of the BP Gulf oil spill passed in April with relatively little fanfare.

Certainly there were some very important reports circulated in the media regarding the detrimental impacts of oil on larval fish, especially tuna, in the open waters of the Gulf of Mexico. And the Coast Guard recently announced it was ending the active cleanup phase of the recovery effort and responding to oiling on a case-by-case basis, despite regular reports of oil showing up on Louisiana’s barrier island beaches. The Baton Rouge Advocate reported that more and more workers are commuting to jobs in coastal parishes in Louisiana rather than living in coastal communities, which are growing increasingly vulnerable to flooding from wetland loss, sea level rise and the fact that the land is sinking, something most in South Louisiana have surely noticed on area roads during rush-hour traffic.

Despite these reports ringing alarms along the Gulf Coast, where post-oil spill and post-hurricane realities are ever present, the national spotlight will likely not focus on the oil spill again until next year when its fifth anniversary coincides with the 10^th anniversary of the landfalls of hurricanes Katrina and Rita.

While many of the larger national news outlets passed on the in-depth examinations of the health of the Gulf and its residents this year, Smithsonian.com published an article that examined the impacts of the spill, attempting to distill fact from rumor and portray as accurate a picture possible of the Gulf of Mexico in April 2014 versus the Gulf of four years ago.

The article illustrated the impacts of hydrocarbons on larval fish such as bluefin and blackfin tuna, though it did not report that scientists and researchers know for certain that those impacts will have long-term detrimental effects on the populations of those fish. Scientists simply don’t know that yet and will need more time to ascertain that information. The article further explained key forage species, especially menhaden, had gone through enough life cycles for scientists to reasonably conclude that their collapse was unlikely, though not out of the realm of possibilities.

The article also quoted oil-spill experts who attested the oil released into the Gulf was a lighter, more volatile hydrocarbon than what was spilled by the Exxon Valdez in Alaska’s Prince William Sound in 1989 – and it was released into a warmer environment with more micro-organisms in it to help dissipate and consume it. However, despite the ability of the Gulf’s warmer, highly-oxygenated climate to consume oil, once it reached the irregular, marshy shorelines of Louisiana’s coast, the oil was trapped in vegetation and mud – and likely will stay there for generations.

All of these findings, for the most part, had been reported before the piece in Smithsonian.com was published, though it was very helpful to have them all summed up in one tidy, well-researched article, especially as news of the spill’s aftermath has been pushed farther to the back of newspapers and magazines and off the home pages of most news websites.

Of all the points made in the article, one that stood out the most is the fact that the spill did not happen in a pristine environment. The Gulf, like many other coastal ecosystems across the world, has experienced more than its share of habitat loss, poor water quality and man-made and natural disasters.

Efforts to contain rivers from flooding and maintain them for navigation have disrupted vital sediment deposits needed to maintain wetlands that serve as fish nursery grounds and filters for nutrients from agriculture and urban runoff. Over-harvest and poor water quality, including nutrient loading and saltwater intrusion, have limited oyster and scallop production.

Poor water quality also can be blamed for the loss of historic sea grass beds, especially in Florida and Texas. Some places are getting too much freshwater and at the wrong times of the year, while others are simply not getting enough freshwater due to upstream diversions. Since scientists did not have a wealth of knowledge about Gulf fisheries before the spill, it’s difficult for them to draw specific conclusions about what the impacts of the spill are and could be.

None of this is intended to suggest that people do not have their place in the Gulf’s ecosystems. Rather, it is meant to point out that policymakers, lawmakers, scientists and Gulf residents must seize the opportunity to address the impacts and make the Gulf a better, more sustainable ecosystem. That opportunity comes in the form of the penalties that have been and will be paid to help repair the damages caused and exacerbated by the spill.

Efforts to restore coastal wetlands, oyster and sea grass beds; repair damages to coral reefs; return sediment flows back into the Mississippi River Delta and improve water quality across the Gulf are not just “feel good” stories. They are essential to making the Gulf’s fisheries and coastal communities sustainable.

More than 3.5 million anglers hold recreational fishing licenses from Florida through Texas. That number swells by as much as a million when those are included who take charter trips out of states that include the license as part of the charter fee. That fishing activity annually generates more than $10 billion throughout the Gulf. Without efforts to make the ecosystems on which the fish depend more sustainable, those recreational fishing dollars gradually go away, as do the fishing opportunities.

As Gulf-area law and policymakers devise ways to spend oil-spill recovery dollars on “economic development” as the money continues to trickle in, it’s important for the recreational fishing community to remind them the wisest investment is in the ecosystems that already make up a huge part of the area’s economy.