| Event name: | US-06-012 | |
| Country: | UNITED STATES | |
|
Nature of the harmful event: |
High Phyto concentration , Seafood toxins | |
|
Event directly affected: |
Natural Fish | |
| Toxicity detected: | Yes (Approximate range: 0.1 to 0.8 ug/ml Karlotoxin) | |
| Associated syndrome: | ||
| Unexplained toxicity: | ||
| Species implicated in toxin transmission (transvector): | None detected | |
| Report the outcome of a monitoring programme: | Yes (Neuse River Modeling and Monitoring Program (ModMon)) | |
| Event occurred before in this location: | Yes (Blooms have been reported from the region in the past) | |
| Individuals to contact: | LITAKER, Wayne , PAERL, Hans | |
| Location: | Latitude: , Longitude: | |
| General location information: |
Neuse River Estuary, North Carolina, USA HAB Area code(s): US-11 |
|
| Additional location information: | The bloom covered approximately 20 km of the estuary with the greatest densities occuring over a km region. | |
| Bloom event dates (yyyy/mm/dd): | ||
| Quarantine levels dates (yyyy/mm/dd): | ||
| Additional date-related information: | 10/3/06 to 10/30/06 | |
| Causative organism known: | Yes | |
| Causative Species/Genus: |
Karlodinium veneficum
(2.0x10^8 cells/L)
|
|
| Co-Ocurring Species/Genus: |
Karlodinium veneficum
(200,000 cells/L)
|
|
| Chlorophyll concentration, if known: | µg/l | |
| Additional bloom information: | Chlorophyll concentration was variable - ranging from approximately 50 to maximum of 800 ug/ml. Pheopolykrikos hartmannii, gyrodinium uncatenum, scrippsiella trochoidea, peridinium aciculaferum, and Katodinium rotundatum were also present at concentratio | |
| Event-related bibliography: | Working on paper | |
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| Nutrient information: |
AMONIUM:
exceeded 0.5 uM
PHOSPHATE: Not limiting |
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| Temperature Range During Event: | Max: °C, Min: °C | |||||||||||||||||||||||||
| Salinity Range During Event: | ||||||||||||||||||||||||||
| Bloom location in the water column: | ||||||||||||||||||||||||||
| Growth: |
Advected
In situ |
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| Growth Comments | Bloom likely due to both situ growth and hydrodynamic concentration | |||||||||||||||||||||||||
| Additional Environmental information: | ||||||||||||||||||||||||||
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| Kit used: | Type of kit used: | ||||||
| Additional information: | for methods see: JR Deeds and AR Place. 2006. Sterol-specific membrane interactions with the toxins from Karlodinium micrum (Dinophyceae): a strategy for self-protection? African Journal of Marine Science 28(2): 421-425 | ||||||
| Economic losses: | None - Only local noncommercial fish lost | ||||||
| Management decision: | The toxin has no known human health effects | ||||||
| Additional harmful effect information: | NONE | ||||||
