Perilous Times
Louisiana State authorities say massive fish kill in Mississippi waters
likely caused by oil contamination and low oxygen levels
Published: Monday, August 23, 2010, 5:25 PM Updated: Monday, August
23, 2010, 8:45 PM
Bob Warren, The Times-Picayune
St. Bernard Parish authorities have reported a large fish kill at the
mouth of the Mississippi River Gulf Outlet, but state wildlife
officials say it does not appear to be directly related to oil from the
BP leak.
Randy Pausina, head fisheries biologist for the state, said Department
of Wildlife and Fisheries workers are investigating the fish kill and
that the initial conclusion is that it was caused by low levels of
oxygen in the water.
Pausina said extreme heat can cause areas of low oxygen, especially
when coupled with nutrient-rich water coming from the Mississippi
River. The state opened several river diversion structures to help keep
oil from penetrating the state's wetlands.
The fish were found Sunday afternoon, floating near boom that had been
deployed in the area to catch oil from the BP oil leak, and washed up
on the shoreline, St. Bernard Parish government said in a news release.
"By our estimates there were thousands, and I'm talking about 15,000 +
dead fish. Different species were found dead including crabs, sting
rays, eel, drum, speckled trout, red fish, you name it, included in
that kill," St. Bernard Parish President Craig Taffaro said.
Taffaro said there was oil in the area, but said it could not be
determined at this point if it factored into the fish kill.
"We don't want to jump to any conclusions because we've had some oxygen
issues by the Bayou La Loutre Dam from time to time,'' he said in the
news release.
Nonetheless, Taffaro said, "It does point to the need for us to
continue to monitor our waters and that's what we'll be doing."
A a thick, orange substance with tar balls and a "strong diesel smell''
was located Monday morning around Grassy Island, the news release said.
Skimmers were dispatched to the area.