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November 22 – December 1, 2022 – There were 12 reported site visits in the past 10 days with 12 samples collected. Algal bloom conditions were observed by samplers at seven of the sites.

Satellite imagery from 12/1 shows no bloom potential on Lake Okeechobee and no significant bloom potential in visible portions of the Caloosahatchee Estuary. The most recent usable satellite imagery from 11/30 shows no significant bloom potential in visible portions of the St. Lucie Estuary.

The most recent usable satellite imagery for the St. Johns River from 11/28 showed scattered low bloom potential on visible portions of Lake George and the mainstem of the St. Johns River downstream of Lake George. Please keep in mind that bloom potential is subject to change due to rapidly changing environmental conditions or satellite inconsistencies (i.e., wind, rain, temperature or stage).

On 11/28-12/1, Florida Department of Environmental Protection (DEP) staff performed 10 harmful algal bloom (HAB) response site visits. Dominant algal taxa and cyanotoxin results follow each waterbody name.

• Lake Marian - Boat Ramp: No dominant algal taxon, trace level (3.2 parts per billion [ppb]) microcystins detected.

• Moody Lake – SE: Microcystis aeruginosa, trace level (0.44 ppb) microcystins detected.

• Lake Whistler - At Dock: Microcystis aeruginosa, trace level (0.20 ppb) microcystins detected.

• Sawgrass Lake - From CWC Dock: Microcystis aeruginosa, trace level (0.59 ppb) microcystins detected.

• Georges Lake – Center: Microcystis aeruginosa, trace level (1.9 ppb) microcystins detected.

• Coral Gables Canal - East side: Microcystis aeruginosa, trace level (0.12 ppb) microcystins detected.

• Lake Estelle - Dorchester and Mills: Results pending.

• Lake Howell - NW Shore: Results pending.

• Deep Lake - N Shore: Results pending.

• Lake Mann – McQueen Park: Results pending.

On 11/29-12/1, St. Johns River Water Management District staff performed two HAB response site visits.

• Lake Monroe – Center: No dominant algal taxon, no cyanotoxins detected.

• Lake Jesup – Center: Results pending.

Last Week

On 11/21, DEP staff performed one site visit at Lake Pickett – SE Corner. There was no dominant algal taxon and no cyanotoxins were detected.

Results for completed analysis are available at FloridaDEP.gov/AlgalBloom.

This is a high-level summary of the sampling events for the reported week. For all field visit and analytical result details, please refer to the complete algal bloom map with data table by clicking the “Field and Lab Details” Quick Link from the Algal Bloom Dashboard. Different types of blue-green algal bloom species can look different and have different impacts. However, regardless of species, many types of blue-green algae can produce toxins that can make you or your pets sick if swallowed or possibly cause skin and/or eye irritation due to contact. We advise staying out of water where algae is visibly present as specks or mats or where water is discolored pea-green, blue-green or brownish-red. Additionally, pets or livestock should not come into contact with algal bloom-impacted water or with algal bloom material or fish on the shoreline.

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Last Modified:
December 2, 2022 - 2:36pm

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