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

January 10, 2017 – Brazos River Basin

Hubbard Creek Reservoir – Water samples collected from the boat ramp and Highway 180 Bridge had no detectable P. parvum cells.

January 9, 2017 – Brazos River Basin

Lake Sweetwater – A water sample collected from the boat ramp on Lake Sweetwater had a moderate concentration of P. parvum cells and was classified as highly toxic to fish.  A golden algae bloom is suspected to have caused a small fish kill consisting of carp and black bullhead catfish.

Lake Stamford – Water samples collected near Anchor Ramp and the marina boat ramp had no detectable P. parvum cells.

North Anson Lake – A water sample from the boat ramp had low concentrations of P. parvum cells and was classified as slightly toxic to fish.

Kirby Reservoir – A water sample collected from the boat ramp had no detectable P. parvum cells.

Lake McCarty – A water sample collected from the boat ramp had no detectable P. parvum cells.

January 5, 2017 – Colorado River Basin

Beal Park Pond – A water sample from Beal Park in Midland had low amounts of P. parvum cells and was classified as moderately toxic to fish.

C.J. Kelly Pond – A water sample from C.J. Kelly Park in Midland had no detectable P. parvum cells.

Comanche Trails Park – A water sample from Comanche Trails Park in Odessa had no detectable P. parvum cells.

January 4, 2017 – Rio Grande Basin

Ascarate Lake – Water samples from the south end and middle of the lake had no detectable P. parvum cells A water sample from the North end of the lake had low amounts of P. parvum cells and was classified as non-toxic to fish.

January 3, 2017 – Brazos River Basin

Lake Granbury – Water samples from the FM 51 Bridge and the dam had no detectable P. parvum cells. A water sample from the US Business 377 Bridge had low amounts of P. parvum cells and was classified as non-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.

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.

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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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