NOAA: 279 dolphins dead on Gulf Coast, triple usual number

MGN Online

At least 279 dolphins have stranded across much of the U.S. Gulf Coast since Feb. 1.

Posted: Jun 14, 2019 4:55 PM

NEW ORLEANS (AP) — At least 279 dolphins have stranded across much of the U.S. Gulf Coast since Feb. 1, triple the usual number, and about 98 percent of them have died, scientists from the National Oceanic and Atmospheric Administration said Friday.

Scientists will investigate whether lingering effects from the 2010 BP oil spill and more immediate effects from low salinity because of freshwater flowing from high rivers and a Louisiana spillway contributed to the deaths, said Teri Rowles, coordinator for NOAA Fisheries' Marine Mammal Health and Stranding Response Program.

BP spill effects included problems with lungs and adrenal glands, which produce stress-related hormones; blood abnormalities; and general poor condition, according to earlier reports . Those reports said the spill contributed to the Gulf of Mexico's largest and longest dolphin die-off.

"We do know some of the health conditions ... are improving, but some have been slow to improve," Rowles said. "Reproduction in the heaviest-oiled areas continues below normal."

Erin Fougères, administrator for the marine mammal stranding program in NOAA Fisheries' southeast region, said 23% of the dolphins stranded from Louisiana to the Florida Panhandle had sores consistent with freshwater exposure. Such lesions are "not uncommon" in the spring, according to NOAA's website .

Mississippi had 121 dolphin strandings as of Wednesday, with 89 in Louisiana, 32 in Alabama and 37 in Florida, Fougères said.

Moby Solangi, director of the Institute of Marine Mammal Studies in Gulfport, Mississippi, put that state's total on Thursday at 126, and said the opening of the Bonnet Carré Spillway is at least partly to blame. The effects are worse for Mississippi's dolphins than the BP spill, he said, noting that 91 dead dolphins were found in Mississippi during all of 2010.

Dolphins continued to die for years because of oil spill damage, a 2015 study reported.

Freshwater exposure "doesn't appear to be the cause of death for all animals, so that's something we're continuing to investigate," Fougères said. Rowles noted that 70 percent of the carcasses were too decomposed for necropsy.

She said other possible causes might include chemicals and other pollutants in the river water, and changes in the dolphins' usual prey as fish and crabs needing higher salinity left the bays and estuaries where 15 of the area's 17 dolphin groups live.

Such groups tend to stay in their home territories in spite of changes that could harm them, Fougères said.

She said NOAA Fisheries also is investigating reports of increased turtle strandings in Louisiana and Mississippi. Those numbers are above five- and 10-year averages, but are lower than some previous years, Fougères said.

"We do not suspect sea turtle strandings are related to freshwater exposure," she said. "But we are concerned that decreased salinity could have effects on their prey and habitat."

Mississippi Coronavirus Cases

Data is updated nightly.

Cases: 319704

Reported Deaths: 7369
CountyCasesDeaths
DeSoto22276267
Hinds20677421
Harrison18407317
Rankin13880282
Jackson13689248
Madison10249224
Lee10056176
Jones8464167
Forrest7827153
Lauderdale7260242
Lowndes6509150
Lamar634888
Lafayette6310121
Washington5420137
Bolivar4837133
Panola4669110
Oktibbeha466098
Pearl River4604147
Marshall4573105
Warren4440121
Pontotoc425373
Union415777
Monroe4155135
Neshoba4061179
Lincoln4008112
Hancock386687
Leflore3515125
Tate342486
Sunflower339491
Pike3369111
Alcorn325972
Scott320174
Yazoo314171
Adams307486
Itawamba305178
Copiah299966
Coahoma298784
Simpson298189
Tippah291968
Prentiss283861
Leake271974
Marion271280
Covington267283
Wayne264442
Grenada264087
George252051
Newton248663
Tishomingo231568
Winston229981
Jasper222148
Attala215073
Chickasaw210559
Holmes190374
Clay187854
Stone187833
Tallahatchie180041
Clarke178980
Calhoun174132
Yalobusha167840
Smith164034
Walthall135347
Greene131833
Lawrence131024
Montgomery128643
Noxubee128034
Perry127138
Amite126342
Carroll122330
Webster115032
Jefferson Davis108033
Tunica108027
Claiborne103130
Benton102325
Humphreys97533
Kemper96629
Franklin85023
Quitman82216
Choctaw79118
Wilkinson69532
Jefferson66228
Sharkey50917
Issaquena1696
Unassigned00

Alabama Coronavirus Cases

Cases: 548323

Reported Deaths: 11288
CountyCasesDeaths
Jefferson809531565
Mobile42066826
Madison35663525
Tuscaloosa26162458
Shelby25595254
Montgomery25081612
Baldwin21839313
Lee16265176
Calhoun14718325
Morgan14626285
Etowah14171363
Marshall12449230
Houston10764288
Elmore10295213
Limestone10182157
St. Clair10160251
Cullman9941201
Lauderdale9596249
DeKalb8967189
Talladega8458184
Walker7335280
Autauga7230113
Blount6944139
Jackson6922113
Colbert6414140
Coffee5627127
Dale4929114
Russell454941
Chilton4472116
Franklin431083
Covington4273122
Tallapoosa4136155
Escambia401780
Chambers3726124
Dallas3607156
Clarke352961
Marion3242106
Pike314078
Lawrence3129100
Winston283572
Bibb268464
Geneva257581
Marengo250665
Pickens236862
Barbour234659
Hale226878
Butler224071
Fayette218162
Henry193843
Cherokee187245
Randolph187044
Monroe179341
Washington170439
Macon162951
Clay160159
Crenshaw155657
Cleburne153244
Lamar146537
Lowndes142054
Wilcox127030
Bullock124242
Conecuh113430
Coosa111429
Perry108626
Sumter105732
Greene93534
Choctaw62025
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