Event name: | US-94-010 | |
Country: | UNITED STATES | |
Nature of the harmful event: |
Water Discoloration | |
Event directly affected: |
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Toxicity detected: | No | |
Associated syndrome: | ||
Unexplained toxicity: | No | |
Species implicated in toxin transmission (transvector): | ||
Report the outcome of a monitoring programme: | Yes | |
Event occurred before in this location: | Yes (Bloom has been on-going for several years.) | |
Individuals to contact: | STEIDINGER, Karen A. |
Location: | Latitude: , Longitude: | |
General location information: |
Florida Bay., Florida. HAB Area code(s): US-16 |
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Additional location information: | ||
Bloom event dates (yyyy/mm/dd): | ||
Quarantine levels dates (yyyy/mm/dd): | ||
Additional date-related information: | January 1994 -January 1995. |
Causative organism known: | Yes | |
Causative Species/Genus: |
Synechococcus elongatus
(7,100,000, cells/L)
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Co-Ocurring Species/Genus: | ||
Chlorophyll concentration, if known: | Levels up to > 30 µg/L Chlª. µg/l | |
Additional bloom information: | Synechococcus elongatus can co-occur with small (<10 µm) centric diatoms and other cyanobacteria. | |
Event-related bibliography: |
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Nutrient information: | ||||||||||||||||||||||||||
Temperature Range During Event: | Max: 34 °C, Min: 18 °C | |||||||||||||||||||||||||
Salinity Range During Event: | ||||||||||||||||||||||||||
Bloom location in the water column: | ||||||||||||||||||||||||||
Growth: |
In situ |
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Growth Comments | In situ growth within sub-basins of bay. High residency time within sub-basins, but sub-basins flushed by rain and storm events through narrow channels. | |||||||||||||||||||||||||
Additional Environmental information: | Shallow subtropical lagoon with salinities from essentially freshwater to hypersaline (> 50‰). Resuspension events from winds and tidal action common. |
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Kit used: No | Type of kit used: | ||||||
Additional information: | |||||||
Economic losses: | |||||||
Management decision: | None in 1994, although restoration of the bay is part of a long-range interagency plan. | ||||||
Additional harmful effect information: | Effects: Yellow-green to pea-green discolored seawater with decreased water clarity. In a previous year, sponge mortality coincidental with bloom areas. |