| Event name: | US-00-012 | |
| Country: | UNITED STATES | |
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Nature of the harmful event: |
Water Discoloration , High Phyto concentration | |
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Event directly affected: |
Planktonic life , Shellfish | |
| Toxicity detected: | No | |
| Associated syndrome: | ||
| Unexplained toxicity: | No | |
| Species implicated in toxin transmission (transvector): | ||
| Report the outcome of a monitoring programme: | Yes (Suffolk County Department of Health Services, Office of Ecology, South Shore Estuary.) | |
| Event occurred before in this location: | Yes (Bloom began in Fall-winter 1999 and continued into 2000, and sporadically since 1985.) | |
| Individuals to contact: | NUZZI, Robert | |
| Location: | Latitude: , Longitude: | |
| General location information: |
South Shore Estuary (Great South, Moriches an, New York, NE Coastal. HAB Area code(s): US-08 |
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| Additional location information: | Lagoonal system about 85 kilometers long, with limited fllushing and ocean exchange. Highest cell numbers in Great South Bay. | |
| Bloom event dates (yyyy/mm/dd): | ||
| Quarantine levels dates (yyyy/mm/dd): | ||
| Additional date-related information: | Bloom began in Fall-Winter 1999 extending into 2000. | |
| Causative organism known: | Yes | |
| Causative Species/Genus: |
Aureococcus anophagefferens
(1,170,000, cells/L)
Value provided for this area for 1999 is incorrect. Should be 732,000,000 |
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| Co-Ocurring Species/Genus: | ||
| Chlorophyll concentration, if known: | µg/l | |
| Additional bloom information: | Aureococcus blooms ("brown tide") have occurred sporadically in this region since 1985. Evidence suggests bloom may be related to relative availability of dissolved organic nitrogen/dissolved inorganic nitrogen. The 1999 bloom was preceded by the die-off | |
| Event-related bibliography: | ||
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| Nutrient information: | ||||||||||||||||||||||||||
| Temperature Range During Event: | Max: °C, Min: °C | |||||||||||||||||||||||||
| Salinity Range During Event: | ||||||||||||||||||||||||||
| Bloom location in the water column: | Whole column | |||||||||||||||||||||||||
| Growth: |
In situ |
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| Growth Comments | ||||||||||||||||||||||||||
| Additional Environmental information: | Cell numbers declined during winter freeze, and increased to peak cell numbers in June. Numbers decline as water temperature exceeds about 25 degrees C. | |||||||||||||||||||||||||
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| Kit used: No | Type of kit used: | ||||||
| Additional information: | |||||||
| Economic losses: | Effect on shellfish harvest and future year classes. | ||||||
| Management decision: | Continue monitoring. Support research on Aureococcus physiology and brown tide dynamics. | ||||||
| Additional harmful effect information: | |||||||
