Golden Alga Bloom Reports

Please note: Evidence of a golden alga-related fish kill is often difficult to track. Large numbers of small fish may be killed. Predators such as birds and raccoons may eat larger dead fish before they are observed or counted. Also, dead fish quickly sink below the surface, which interferes with counts. Estimates of numbers killed are only as good as the evidence available on the scene. The public is asked to report dead or dying fish and wildlife as soon as possible to TPWD's 24-hour communications centers at 512-389-4848 (Austin) or 281-842-8100 (LaPorte).

Texas River Basins Map

April 19, 2016 – Rio Grande Basin

Ascarate Lake, El Paso – Water samples from Ascarate Lake and the adjacent duck pond contained moderate densities of P. parvum cells and were considered not considered toxic to fish.

March 15, 2016 – Brazos River Basin

Brazos River – Water samples collected from the CR 849 Crossing contained no P. parvum cells.

Lake Granbury – Water samples at the dam, the FM 51 Crossing, and the US Bus 377 Crossing contained no P. parvum cells.

Possum Kingdom Reservoir – Water samples from the dam, Sandy Beach, and deep Elm Arm contained no P. parvum cells. A sample from near Johnson Road contained a low concentration of cells and was not considered toxic to fish.

Lake Whitney – Water samples from McCown Valley Park, Steele Creek, and Lofer’s Bend contained no P. parvum cells.

March 15, 2016 – Rio Grande Basin

Red Bluff Reservoir – Water samples from the dam, mid-lake, and upstream contained no P. parvum cells.

March 8, 2016 – Colorado River Basin

Lake E.V. Spence – Water samples from Wildcat Creek contained no P. parvum cells. Samples from upriver of the lake contained a low concentration of cells and were not considered toxic to fish.

Champion Creek Reservoir – Water samples contained no P. parvum cells.

March 7, 2016 – Colorado River Basin

Colorado City State Park – Water samples contained a low concentration of P. parvum cells and were not considered toxic to fish.

March 3, 2016 – Brazos River Basin

Lubbock Canyon Lakes – Water samples from Lubbock Canyon Lake #2 contained a low concentration of P. parvum cells. The bloom caused a kill of approximately 2000 fish, mostly shad.

March 1, 2016 – Rio Grande Basin

Ascarate Lake, El Paso – Water samples from Ascarate Lake and the adjacent duck pond contained high densities of P. parvum cells and were considered highly toxic to fish.

February 25, 2016 – Brazos River Basin

Lubbock Canyon Lakes – Water samples from Lubbock Canyon Lake #1 contained a low concentration of P. parvum cells that caused a kill of several hundred fish.

February 15, 2016 – Brazos River Basin

Fort Phantom Hill Lake – A water sample from the main boat ramp on Fort Phantom Lake detected no presence of P. parvum cells.

Hubbard Creek Reservoir – Water samples from the bridge and dam on Hubbard creek detected no presence of P. parvum cells.

Kirby Reservoir – A water sample from the boat ramp on Kirby Reservoir contained low concentrations of P. parvum cells and was not considered toxic to fish.

McCarty Lake – a water sample from the boat ramp at the dam of McCarty Lake detected no presence of P. parvum cells.

Lake Stamford – A water sample from the Anchor Marina on Lake Stamford detected no presence of P. parvum cells.

Lake Sweetwater – a water sample from the boat ramp on Lake Sweetwater detected low concentrations of P. parvum cells and was not considered toxic to fish.

February 10. 2016 – Brazos River Basin

Brazos River – Water samples taken from the Hwy 59 and CR 849 crossings detected no presence of P. parvum cells.

February 4, 2016 – Brazos River Basin

Possum Kingdom – Water samples from the dam, Johnson Road, Sandy Beach, and Deep Elm Arm detected no presence of P. parvum cells.

February 3, 2016 – Brazos River Basin

Lake Granbury – Water samples from the dam, FM 51 Crossing, and US Business 377 Crossing detected no presence of P. parvum cells.

January 28, 2016 – Brazos River Basin

Lake Whitney – Water samples from McCown Valley Park, Steele Creek, and Lofers Bend contained no P. parvum cells.

January 12, 2016 – Brazos River Basin

Lake Granbury – Water samples from the dam and at the FM 51 Bridge contained no P. parvum cells. A water sample from the US Bus 377 Bridge contained low concentrations of P. parvum cells and was classified as non-toxic to fish.

Hubbard Creek Reservoir – Water samples from the bridge and a boat ramp contained detected no P. parvum cells.

Kirby Reservoir – A water sample from a boat ramp on Lake Kirby detected no P. parvum cells.

McCarty Lake – A water sample from the dam detected no P. parvum cells.

Lake Stamford – A water sample from the Anchor Marina detected no P. parvum cells.

January 11, 2016 – Brazos River Basin

North Anson Lake – Water samples from a boat ramp on North Anson Lake detected low concentrations of P. parvum cells and was classified as non-toxic to fish.

Fort Phantom Hill Lake – A water sample from the East Lake Boat Ramp detected no P. parvum cells.

Lake Stamford – A water sample from Anchor Marina detected no P. parvum cells.

Lake Sweetwater – A water sample from a boat ramp contained low concentrations of P. parvum cells and was classified as non-toxic to fish.

January 7, 2016 – Rio Grande Basin

Ascarate Lake, El Paso – A water sample from the duck pond near Lake Ascarate had low concentrations of P. parvum cells and was not considered toxic to fish. Water samples from the south end of the lake and at a dock contained high concentrations of P. parvum cells and was considered moderately toxic to fish. A scheduled stocking of rainbow trout for the lake was postponed because of the high concentrations of golden algae. Local residents reported a fish kill in the lake on January 19 and continuing through February 5. A total of 1400 fish of various species and size have been killed due to this algae bloom. A Texas Parks and Wildlife Department Game Warden collected water samples from the lake on January 26. Water samples from the nearby duck pond and the south end of the lake contained high concentrations of P. parvum cells and were classified as moderately toxic to fish. A sample from the dock on the north end of the lake contained high concentrations of P. parvum cells and was considered highly toxic to fish.

January 5, 2016 - Brazos River Basin

Lake Whitney – Water samples collected from McCown Valley Park and Lofers Bend detected no P. parvum cells. A water sample from Steele Creek had low concentrations of P. parvum and was classified as non-toxic to fish.

Possum Kingdom – Water samples from the dam, Johnson Road, Sandy Beach, and Deep Elm Arm detected no presence of P. parvum cells.

December 7, 2015 - Brazos River Basin

Hubbard Creek Lake – Water samples had low algal densities and detected no P. parvum cells.

Lake Fort Phantom Hill – Water samples contained mixed algal communities with no P. parvum cells.

Lake Sweetwater – A water sample had a mixed algal community with a moderate concentration of P. parvum cells that was considered highly toxic to fish. No fish kill from Lake Sweetwater was reported.

McCarty Lake – A water sample contained a mixed algal community with no P. parvum cells detected.

Anson North Lake – A water sample contained a mixed algal community with a low concentration of P. parvum cells. The sample was characterized as non-toxic to fish.

Kirby Lake – A water sample contained a mixed algal community with no P. parvum cells detected.

Stamford Lake – Water samples from the Anchor Marina Boat Ramp contained mixed algal communities with no P. parvum cells detected.

December 4, 2015 – Brazos River Basin

Brazos River at Waco – Water samples from Brazos Park East Boat Ramp, the Franklin Ave. Bridge contained mixed algal communities with no P. parvum cells detected. A water sample collected near McLane Stadium had low concentrations of P. parvum and was characterized as non-toxic to fish.

Bosque River at Waco – Water samples from the Bosque at Airline Road Park and at the confluence with the Brazos River had mixed algal communities and detected no P. parvum cells.

December 1, 2015 – Brazos River Basin

Lake Whitney – Water samples from Lofers Bend and Steele Creek had no detectable P. parvum cells. A water sample from McCown Valley Park contained low concentrations of P. parvum cells and was considered non-toxic to fish.

Possum Kingdom – Water samples from the dam and Sandy Beach detected no P. parvum cells. Water samples from Johnson Road and Deep Elm Arm detected low concentrations of P. parvum cells and were not considered toxic to fish.

December 2, 2015 – Brazos River Basin

Lake Granbury – Water samples from DeCordova, the FM 51 Bridge, and US Bus 377 detected no P. parvum cells.

November 23, 2015 - Colorado River Basin

Beal Park, Midland – Water samples collected by fisheries biologists contained moderate concentrations of mixed algal species and were considered non-toxic to fish.

C.J. Kelly Park, Midland – Water samples collected by fisheries biologist contained low concentrations of algal cells and were considered non-toxic to fish.

Comanche Trails Park, Odessa – Water samples collected by fisheries biologist had no detectable concentrations of P. parvum cells and were considered non-toxic to fish.

October 21, 2015 - Colorado River Basin

Lake Colorado City – State Park staff observed a fish kill of about 1000 mostly carp and shad on 10/16/2015. Water samples collected by fisheries biologists on 10/21/2015 detected a high concentration of algae cells of mostly P. parvum and were characterized as moderately toxic to fish.

Lake E.V. Spence – Water samples collected by fisheries biologists on Lake E.V. Spence contained low concentrations of mixed algal species and were not considered toxic to fish.

Champion Creek Reservoir – Water samples collected by fisheries biologists on Champion Creek Reservoir contained no detectable concentrations of P. parvum cells.

October 19, 2015 - Rio Grande Basin

Lake Balmorhea – Fisheries biologists collected water samples on Lake Balmorhea that had low concentrations of mixed algal species and was not considered toxic to fish.

October 1, 2015 - Rio Grande Basin

Ascarate Lake – A game warden collected water samples in response to public concern about several dead fish found in the lake. A sample collected on the south end of the lake contained a moderate density of P. parvum cells and was characterized as slightly toxic to fish.

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Take Action
  • Report Kills - If you see a fish kill or suspect golden alga, contact one of TPWD's 24-hour communications centers at 512-389-4848 (Austin) or 281-842-8100 (La Porte).
  • Get the Facts - TPWD has collaborated with the Texas Commission on Environmental Quality and other entities to produce a golden alga information card. Download a PDF from the TCEQ website or request a free hard copy from TPWD at hab@tpwd.texas.gov.
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