Event name: | US-90-027 | |
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 (Chronic annual blooms.) | |
Individuals to contact: | OLSEN, Paul |
Location: | Latitude: , Longitude: | |
General location information: |
Sandy Hook Bay., New Jersey. HAB Area code(s): US-09 |
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Additional location information: | Sandy Hook Bay, New Jersey, especially the south shore area; Shrewsbury River, especially in the vicinity of Branchport Creek tributary. | |
Bloom event dates (yyyy/mm/dd): |
Event Date:1990-06-29 Start: 1990-06-25, End: 1990-06-30 |
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Quarantine levels dates (yyyy/mm/dd): | ||
Additional date-related information: |
Causative organism known: | Yes | |
Causative Species/Genus: |
Katodinium rotundatum
(40,000,000 cells/L)
Dominant species |
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Co-Ocurring Species/Genus: | ||
Chlorophyll concentration, if known: | Chlorophyll a in bloom from 25 to 120 µg/L on µg/l | |
Additional bloom information: | Surface and bottom samples by Kemmerer from US EPA helicopter. | |
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: | ||||||||||||||||||||||||||
Growth: |
In situ |
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Growth Comments | ||||||||||||||||||||||||||
Additional Environmental information: | Temperature range 22.5 to 23.2 C (surface), 20,5 to 22.3 C (bottom), slight stratification, salinity 21.9 to 24.0 ‰ (surface), dissolved oxygen 3.36 to 9.9 mg/L (surface); 3.79 to 8.55 (botton). |
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Kit used: No | Type of kit used: | ||||||
Additional information: | |||||||
Economic losses: | |||||||
Management decision: | Joint surveillance by NJ DEP/US EPA: continuation of the estuarine phytoplankton - dissolved oxygen survey initiated in 1989; New York Bight and coastal monitoring by these agencies ongoing. | ||||||
Additional harmful effect information: | Red to reddish-brown water throughout Raritan and Sandy Hook bays; slight hypoxia (as low as 3.3 mg/l) subsequent to bloom; no fauna kills reported as occurred in 1988; toxicity not suspected. |