July 3 - July 11, 2024 - There were 61 reported site visits in the past nine days with 61 samples collected. Algal bloom conditions were observed by samplers at 27 of the sites.
The most recent usable satellite imagery for Lake Okeechobee from 7/8 is partially obscured by cloud cover and shows low to high bloom potential on approximately 90% of the lake, with the highest bloom potential in the southeastern quadrant of the lake.
The most recent usable satellite imagery for the Caloosahatchee Estuary from 7/8 is partially obscured by cloud cover and shows no bloom potential in visible portions of the estuary.
The most recent usable satellite imagery for the St. Lucie Estuary from 7/7 is partially obscured by cloud cover and shows no bloom potential in visible portions of the estuary.
The most recent usable satellite imagery for the St. Johns River from 7/9 is partially obscured by cloud cover and shows moderate bloom potential from Lake George downstream to Doctors Lake.
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 7/8 – 7/10, Florida Department of Environmental Protection (DEP) staff collected nine Harmful Algal Bloom (HAB) response samples. Dominant algal taxa and cyanotoxin results follow each waterbody name.
Spring Garden Lake - North of Center: No dominant algal taxon; no cyanotoxins detected.
Doctors Lake - Mill Cove: Microcystis aeruginosa; 12 parts per billion (ppb) microcystins detected.
Doctors Lake - Wyndegate Drive: Microcystis aeruginosa; 1.8 ppb microcystins detected.
Lake Breckenridge - South Lobe: Oscillatoria articulata; no cyanotoxins detected.
Blanton Lake - South Lobe: Microcystis aeruginosa; trace level (0.41 ppb) anatoxin-a detected.
Lake Roberts - South Dock: Microcystis aeruginosa and Microcystis wesenbergii co-dominant; trace level (1.4 ppb) microcystins detected.
Little Lake Fairview - Northwest Shore: Algal mat sample dominant Scytonema crispum; water sample had no dominant algal taxon; no cyanotoxins detected.
Lake Howell - Northwest Shore: Microcystis aeruginosa; trace level (0.51 ppb) microcystins and 2.8 ppb cylindrospermopsin detected.
C-17 Canal - Congress Avenue: No dominant algal taxon; no cyanotoxins detected.
On 7/8 – 7/11, South Florida Water Management District staff collected nine HAB response samples, four routine monitoring samples at structures (S77, S78, S79 and S80) and 28 Lake Okeechobee routine HAB monitoring samples (KISSR0.0, LZ2, NES191, L001, NES135, NCENTER, EASTSHORE, L004, L008, L005, POLESOUT3, POLESOUT2, POLESOUT1, POLESOUT, KBARSE, CLV10A, LZ40, L006, PALMOUT3, PALMOUT2, PALMOUT1, PALMOUT, LZ30, POLE3S, RITTAE2, LZ25A, L007 and PELBAY3). Dominant algal taxa and cyanotoxin results follow each waterbody name.
Lake Okeechobee - S308C (lakeside): Microcystis aeruginosa; 70 ppb microcystins detected.
C44 Canal - S308C: No dominant algal species; no cyanotoxins detected.
L8 Canal - CULV10A: Microcystis aeruginosa; 39 ppb microcystins detected.
Lake Okeechobee - Pahokee Marina: Microcystis aeruginosa; 4.1 ppb microcystins detected.
Lake Okeechobee - S135LOCKDS: Results pending.
L-47 Canal - S135LOCKUS: Results pending.
Lake Okeechobee - S352: Results pending.
Lake Okeechobee - S351: Results pending.
Lake Okeechobee - S354: Results pending.
C43 canal - S77 (upstream): No dominant algal taxon; no cyanotoxins detected.
C43 Canal - S78 (upstream): Microcystis aeruginosa and Glenodinium sp. co-dominant; no cyanotoxins detected.
C43 Canal - S79 (upstream): Microcystis aeruginosa and Glenodinium sp. co-dominant; no cyanotoxins detected.
C44 Canal - C44S80 (upstream): No dominant algal taxon; no cyanotoxins detected.
KISSR0.0: No dominant algal taxon; no cyanotoxins detected.
LZ2: No dominant algal taxon; no cyanotoxins detected.
NES191: No dominant algal taxon; no cyanotoxins detected.
L001: Microcystis aeruginosa; no cyanotoxins detected.
NES135: Microcystis aeruginosa; 2.1 ppb microcystins detected.
NCENTER: Microcystis aeruginosa; 44 ppb microcystins detected.
EASTSHORE: Microcystis aeruginosa; 10 ppb microcystins detected.
L004: Microcystis aeruginosa; 8.7 ppb microcystins detected.
L008: Microcystis aeruginosa; 16 ppb microcystins detected.
L005: Dolichospermum circinale and Planktolyngbya limnetica co-dominant; no cyanotoxins detected.
POLESOUT3: No dominant algal taxon; no cyanotoxins detected.
POLESOUT2: Microcystis aeruginosa; no cyanotoxins detected.
POLESOUT1: Microcystis aeruginosa; no cyanotoxins detected.
POLESOUT: No dominant algal taxon; no cyanotoxins detected.
KBARSE: No dominant algal taxon; no cyanotoxins detected.
CLV10A: Microcystis aeruginosa; 5.6 ppb microcystins detected.
LZ40: Microcystis aeruginosa; 15 ppb microcystins detected.
L006: Microcystis aeruginosa; 6.3 ppb microcystins detected.
PALMOUT3: Microcystis aeruginosa; 6.8 ppb microcystins detected.
PALMOUT2: Microcystis aeruginosa; 16 ppb microcystins detected.
PALMOUT1: Microcystis aeruginosa and Pseudanabaena mucicola co-dominant; 2.4 ppb microcystins detected.
PALMOUT: Microcystis aeruginosa; trace level (0.29 ppb) microcystins detected.
LZ30: Microcystis aeruginosa; 4.8 ppb microcystins detected.
POLE3S: Microcystis aeruginosa; trace level (0.28 ppb) microcystins detected.
RITTAE2: Microcystis aeruginosa; trace level (0.26 ppb) microcystins detected.
LZ25A: Microcystis aeruginosa; trace level (0.50 ppb) microcystins detected.
L007: Microcystis aeruginosa; trace level (0.36 ppb) microcystins detected.
PELBAY3: No dominant algal taxon; no cyanotoxins detected.
On 7/8 – 7/10, St. Johns River Water Management District staff collected 11 routine HAB monitoring samples. Dominant algal taxa and cyanotoxin results follow each waterbody name.
St. Johns River - Mandarin Point: No dominant algal taxon; trace level (0.12 ppb) cylindrospermopsin detected.
Doctors Lake - Center: Microcystis aeruginosa; 12 ppb microcystins detected.
St. Johns River - Shands Bridge: Microcystis aeruginosa; 0.48 ppb cylindrospermopsin detected.
Lake George - Center: Microcystis aeruginosa; 0.75 ppb cylindrospermopsin detected.
Harris Bayou - Center: No dominant algal taxon; no cyanotoxins detected.
Crescent Lake - Mouth of Dunns Creek: No dominant algal taxon; trace level (0.21 ppb) cylindrospermopsin detected.
Lake Jesup - Center: Microcystis wesenbergii and Planktolyngbya limnetica co-dominant; no cyanotoxins detected.
Stick Marsh - North: No dominant algal taxon; no cyanotoxins detected.
Crescent Lake - Cresent City Public Boat Ramp: Microcystis aeruginosa and Raphidiopsis raciborskii co-dominant; trace level (0.10 ppb) cylindrospermopsin detected.
Lake Monroe - Center: No dominant algal taxon; no cyanotoxins detected.
Blue Cypress Lake - Center: Microcystis wesenbergii; no cyanotoxins detected.
Last Week
On 7/2, DEP staff collected four HAB response samples. Dominant algal taxa and cyanotoxin results follow each waterbody name.
Chari Lake - North Shore: Microcystis wesenbergii; no cyanotoxins detected.
Scott Lake - West: Microcystis aeruginosa and Botryococcus braunii co-dominant; trace level (0.33 ppb) cylindrospermopsin detected.
Lake Hancock - South Central: Microcystis aeruginosa; trace level (0.34 ppb) microcystins detected.
Blanton Lake - South Lobe: Samples not processed due to shipping issues.
Results for completed analyses 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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