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Algae Test Results

The tables below contain blue-green algae and red tide results from water samples taken in Lee County by the Florida Department of Environmental Protection (DEP) and the Florida Fish and Wildlife Conservation Commission (FWC). Information on this page is updated periodically throughout the week. More current results may be available by visiting the DEP Florida Algal Bloom Site Visits map and the FWC Red Tide Current Status map.

Blue Green Algae Data
Datemicrograms/LLocation
12/16/2019not detectedS79
1/7/20200.63Franklin Locks Upstream
1/7/20200.48Davis Boat Ramp

Table Data Last Modified: Fri Jan 10, 2020 15:33:50 EST

Blue Green Algae Legend
LevelDescription
Greater than 8 micrograms/LPotential for health impact

Table Data Last Modified: Fri Jun 07, 2019 15:57:24 EDT

Red Tide Data
DateLevelLocation
1/6/2020not present Cayo Pelau; E of (Bull Bay)
1/6/2020not present Burnt Store Marina (Charlotte Harbor)
1/7/2020not present Cayo Pelau; 2 mi S of (Charlotte Harbor)
1/7/2020not present Boca Grande Pass
1/8/2020not present Jug Creek Point; E of (Matlacha Pass)
1/6/2020not present Captiva Rocks; SW of (Pine Island Sound)
1/6/2020not present Hemp Key; S of (Pine Island Sound)
1/8/2020not present McCardle Island; SW of (Matlacha Pass)
1/6/2020not present Cork Island; W of (Pine Island Sound)
1/6/2020BACKGROUND Redfish Pass; 1.8 mi E of (Pine Island Sound)
1/6/2020not present Regla Island; W of (Pine Island Sound)
1/6/2020not present Buck Key; 1.9 mi NE of (Pine Island Sound)
1/8/2020not present South Seas Plantation Entrance
1/2/2020not present South Seas Plantation Entrance
1/6/2020not present Chino Island; E of (Pine Island Sound)
1/8/2020not present Merwin Key; W of (San Carlos Bay)
1/6/2020not present Matanzas Pass (Estero Bay)
1/8/2020not present Lynn Hall Park
1/2/2020not present Lynn Hall Park
1/8/2020not present Lighthouse Beach
1/2/2020not present Lighthouse Beach
1/6/2020not present Mound House Dock (Estero Bay)
1/6/2020not present Estero River; upstream
1/6/2020not present Estero River; mouth of (Estero Bay)
1/6/2020not present Coon Key; N of (Estero Bay)
1/8/2020not present Tarpon Road Beach
1/2/2020not present Tarpon Road Beach
1/6/2020not present Big Carlos Pass
1/6/2020not present Carl Johnson Park Boat Ramp (Estero Bay)
1/8/2020not present Lovers Key State Park
1/2/2020not present Lovers Key State Park
1/6/2020not present Hogue Channel
1/8/2020not present Bonita Beach Park
1/2/2020not present Bonita Beach Park

Table Data Last Modified: Fri Jan 10, 2020 15:37:02 EST

Red Tide Legend
LevelCells per LiterPossible Effects
Not present/Background0-1,000None Anticipated.
Very low>1,000-10,000Possible respiratory irritation; shellfish harvesting closures > 6 cells/mL.
Low>10,000-100,000Respiratory irritation; possible fish kills and bloom chlorophyll probably detected by satellites at upper range.
Medium>100,000-1,000,000Respiratory irritation and probably fish kills.
High>1,000,000As above plus discoloration

Table Data Last Modified: Tue May 14, 2019 07:41:11 EDT

Mobile Version of this Page

Please visit our red tide and blue-green algae pages for more information.

Sources:

DEP Florida Algal Bloom Site Visits

EPA Recommendations for Cyanobacteria and Cyanotoxin

FWC Red Tide Current Status Update

FWC Red Tide Current Status Map