The federal government says somebody shot and killed a bottlenose dolphin found dead over the weekend on Elmer's Island — and there's a reward for information about whoever did it.
The National Oceanic and Atmospheric Administration says The Whale and Dolphin Conservation Society is offering a $1,500 reward for information leading to the conviction of the person or people who shot the dolphin.
Its body was found Saturday on the island, which is next to Grand Isle.
Officials say an abandoned brine cavern in the Napoleonville salt dome has been successfully breached.
State Commissioner of Conservation James Welsh said Monday the investigatory well entered the cavern Saturday evening. Officials say they hope samples taken from inside the cavern will shed some light on the cause behind a massive sinkhole that erupted in Assumption Parish Aug. 3.
Officials say natural gas samples taken from inside the cavern will be tested for connections with gas bubbles that have been identified in other areas of the parish.
Gulf of Mexico fishing boats hauled in far more menhaden last year than in 2010. Catches of some other important species were above pre-spill levels in some Gulf Coast states. But a federal official says it's too early to rule out long-term effects from the spill.
A national report released Wednesday says the Gulf's menhaden catch last year was nearly 66 percent above that in 2010. Other species also showed increases.
Roy Crabtree of NOAA Fisheries says that's guardedly good news. But he says it's probably too soon to tell whether the spill killed eggs and immature fish.
State regulators say they are issuing a $12,189 fine against a chemical terminal flooded during Hurricane Isaac because it did not notify authorities fast enough about chemical releases.
On Tuesday, the Louisiana Department of Environmental Quality said it issued the fine against Stolthaven New Orleans LLC, a company that operates a chemical terminal along the Mississippi River in Plaquemines Parish.
The state fisheries department is hosting a free fishing rodeo to teach people how to catch the Rio Grande cichlid, an invasive species of fish.
The Louisiana Department of Wildlife and Fisheries is hosting the rodeo on Sept. 29 in City Park in New Orleans.
The cichlid fish out-compete native sport fish for habitat and bedding areas. The fish are from northeast Mexico and southern Texas. They were first reported in Louisiana in 1996 in Lake Pontchartrain and since then have spread throughout the New Orleans area.
State officials are investigating how many chemicals leaked from storage tanks at a facility flooded by Hurricane Isaac with about 10 feet of water.
Isaac's surge damaged the Stolthaven Braithwaite LLC chemical storage and transfer facility next to the Mississippi River in Braithwaite, a Plaquemines Parish community protected by levees overtopped by floodwaters.
The facility is owned by Stolt-Nielsen Ltd., a Norwegian company that ships bulk liquid chemicals, vegetable oils and other chemicals around the world.