| Event name: | US-98-001 | |
| Country: | UNITED STATES | |
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Nature of the harmful event: |
Water Discoloration , Mass mortalities | |
|
Event directly affected: |
Planktonic life | |
| Toxicity detected: | Yes | |
| Associated syndrome: | OTHER | |
| Unexplained toxicity: | No | |
| Species implicated in toxin transmission (transvector): | ||
| Report the outcome of a monitoring programme: | Yes | |
| Event occurred before in this location: | Yes (Several; first documented in August-September 1979 (Perry et al. 1979. First record of a bloom of Gonyaulax monilata in coastal waters of Mississippi, Gulf Research Reports 6 (3): 313-316; also reported during summer of 1986.) | |
| Individuals to contact: | MONCREIFF, Cynthia A. | |
| Location: | Latitude: , Longitude: | |
| General location information: |
Harrison and Jackson Counties., Mississippi. HAB Area code(s): US-17 |
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| Additional location information: | ||
| Bloom event dates (yyyy/mm/dd): | Start: 1998-08-28, End: 1998-09-25 | |
| Quarantine levels dates (yyyy/mm/dd): | ||
| Additional date-related information: | ||
| Causative organism known: | Yes | |
| Causative Species/Genus: |
Alexandrium monilatum
(>16,000,00 cells/L)
surface water, vicinity of the barrier islands Alexandrium monilatum (48,000 - 3 cells/L) Inshore waters |
|
| Co-Ocurring Species/Genus: | ||
| Chlorophyll concentration, if known: | µg/l | |
| Additional bloom information: | ||
| Event-related bibliography: | ||
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| Nutrient information: | ||||||||||||||||||||||||||
| Temperature Range During Event: | Max: 31 °C, Min: 26 °C | |||||||||||||||||||||||||
| Salinity Range During Event: | Max: 32, Min: 15 | |||||||||||||||||||||||||
| Bloom location in the water column: | ||||||||||||||||||||||||||
| Growth: |
Advected
In situ |
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| Growth Comments | Advected population from northern Gulf of Mexico waters south of Horn Island, one Mississippi's barrier islands. Extensive in situ growth in the south half of the central and eastern segments of Mississippi Sound. | |||||||||||||||||||||||||
| Additional Environmental information: | Occurred in vicinity of barrier islands and in nearshore waters | |||||||||||||||||||||||||
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| Kit used: | Type of kit used: | ||||||
| Additional information: | |||||||
| Economic losses: | |||||||
| Management decision: | None. Booms appeared to be dispersed by Hurricanes George. | ||||||
| Additional harmful effect information: | Water discoloration; moderate plankton mortalities in Mississippi Sound within blooms; not uniformly distributed. | ||||||
