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Cyanobacteria advisory (harmful blue-green algae) reported, Aug 11, 2026

Advisory active · Florida Department of Environmental Protection (Algal Bloom Sampling)

Source: Florida Department of Environmental Protection (Algal Bloom Sampling) via Florida DEP Algal Bloom Sampling, blooms and toxins by site, record 83e9de14-1794-4581-b4d7-e1dd86cf4f24, updated by the source Aug 24, 2026, 11:30 AM EDT, retrieved 2026-11-05 06:08 UTC · Read the original notice

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1. Where the advisory applies

Issued by: Florida Department of Environmental Protection (Algal Bloom Sampling). Place named: “C54 canal - W of CR 507 in Fellsmere”. Location: 27.82369, -80.61594; location source: given in the source record, accurate to about 10 metres.

2. Waters named in the notice

The notice names: “C54 canal”. DirtyWaterWatch links this report to Indian River Lagoon, FL. Match basis: the report's location, matched to the nearest tracked water.

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When it happened and when it was reported

Event and notice times use Eastern Time (EST or EDT). Retrieval times use Coordinated Universal Time (UTC).

Started

Aug 11, 2026, 9:40 AM EDT

Ended

not reported

Detail provided by the source

Times known to the minute

Reported to the source

not given

Published

not given

Source last updated

Aug 24, 2026, 11:30 AM EDT

Last retrieved by DirtyWaterWatch

2026-11-05 06:08 UTC

What was reported

Type

Cyanobacteria (harmful blue-green algae) can make water unfit for contact; the issuing authority decides when its advisory ends.

Status in the record

Advisory active

Material

“algal bloom (Co-dominant taxa were: Microcystis aeruginosa and Dolichospermum spp.; mixed algae; no dominant species in sample; Dominant taxon: Dolichospermum circinale)”

Advice from Florida Department of Environmental Protection (Algal Bloom Sampling)

This report includes no advice. Check current local health notices.

Advice period

This report does not state a period. See the rule DirtyWaterWatch applies and its source.

Basis

not stated

Status history from this report

• Discharge or advisory reported a water not yet on the map: Official advisory in effect, Aug 11, 2026, 9:40 AM EDT to Sep 7, 2026, 11:30 AM EDT
• No current status shown a water not yet on the map: advisory not re-confirmed by its source recently, no map colour, Sep 7, 2026, 11:30 AM EDT to Nov 9, 2026, 8:40 AM EST (the end is scheduled: a new report can change it)

Source: DirtyWaterWatch calculations using this report and the published status rules. Updated 2026-11-05 06:27 UTC.

Source and versions

Source

Florida DEP Algal Bloom Sampling, blooms and toxins by site

Source record number

83e9de14-1794-4581-b4d7-e1dd86cf4f24

Original notice

Read the original notice

Earlier version

None: this is the first record

Later versions

None

{
  "site": "C54 canal - W of CR 507 in Fellsmere",
  "site_key": "c54 canal w of cr 507 in fellsmere",
  "county": "IndianRiver",
  "group": "SEROC",
  "visits": [
    {
      "time": "2026-08-11T09:40:00-04:00",
      "globalid": "83e9de14-1794-4581-b4d7-e1dd86cf4f24",
      "bloom_observed": "Yes",
      "toxin_present": "Yes",
      "microcystin": "not detected",
      "other_toxins": "Anatoxin-a: not detected; Cylindrospermopsin: 0.14 I (I qualifier indicates that the reported value is between the laboratory method detection limit and the laboratory practical quantitation limit.); Nodularin-R: not detected; Saxitoxins: not detected",
      "taxa": "Co-dominant taxa were: Microcystis aeruginosa and Dolichospermum spp.",
      "cyanobacteria_dominant": "Yes",
      "sample_depth": "SurfaceGrab",
      "group": "SEROC",
      "edited": "2026-11-04T02:37:51.449000-05:00"
    },
    {
      "time": "2026-08-18T13:30:00-04:00",
      "globalid": "0ae69422-b1db-4721-9448-e1a2da667c54",
      "bloom_observed": "No",
      "toxin_present": "Yes",
      "microcystin": "not detected",
      "other_toxins": "Anatoxin-a: not detected; Cylindrospermopsin: 0.41; Nodularin-R: not detected; Saxitoxins: not detected",
      "taxa": "mixed algae; no dominant species in sample",
      "cyanobacteria_dominant": "No",
      "sample_depth": "SurfaceGrab",
      "group": "SEROC",
      "edited": "2026-11-04T02:37:58.090000-05:00"
    },
    {
      "time": "2026-08-24T11:30:00-04:00",
      "globalid": "1a60168d-a48f-4b76-8b57-efd797baa996",
      "bloom_observed": "Yes",
      "toxin_present": "Yes",
      "microcystin": "not detected",
      "other_toxins": "Anatoxin-a: not detected; Cylindrospermopsin: 0.41; Nodularin-R: not detected; Saxitoxins: not detected",
      "taxa": "Dominant taxon: Dolichospermum circinale",
      "cyanobacteria_dominant": "Yes",
      "sample_depth": "SurfaceGrab",
      "group": "SEROC",
      "edited": "2026-11-04T02:38:02.889000-05:00"
    }
  ],
  "basis": "Florida DEP observed an algal bloom, or found an algal toxin, in a sample at this site. This is a sampling result, not a health advisory; the Florida Department of Health issues health alerts separately."
}