| Event name: | US-89-021 | |
| Country: | UNITED STATES | |
|
Nature of the harmful event: |
High Phyto concentration | |
|
Event directly affected: |
Other Terrestrial | |
| Toxicity detected: | No | |
| 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: | No | |
| Individuals to contact: | HANOWELL, Ray | |
| Location: | Latitude: , Longitude: | |
| General location information: |
Pierce county., Washington. HAB Area code(s): US-24 |
|
| Additional location information: | American Lake. | |
| Bloom event dates (yyyy/mm/dd): |
Event Date:1989-11-18 Start: 1989-11-18, End: 1990-01-10 |
|
| Quarantine levels dates (yyyy/mm/dd): | ||
| Additional date-related information: | 18 November 1989 (first reported animal illness) to present (10 January 1990). The toxic bloom is still present. | |
| Causative organism known: | Yes | |
| Causative Species/Genus: |
Anabaena flos-aquae
( cells/L)
|
|
| Co-Ocurring Species/Genus: | ||
| Chlorophyll concentration, if known: | µg/l | |
| Additional bloom information: | The toxin is Anatoxin-A | |
| Event-related bibliography: | ||
|
||||||||||||||||||||||||||
| Nutrient information: | ||||||||||||||||||||||||||
| Temperature Range During Event: | Max: 10 °C, Min: 9 °C | |||||||||||||||||||||||||
| Salinity Range During Event: | ||||||||||||||||||||||||||
| Bloom location in the water column: | ||||||||||||||||||||||||||
| Growth: |
In situ |
|||||||||||||||||||||||||
| Growth Comments | ||||||||||||||||||||||||||
| Additional Environmental information: | Specific conductivity has been measured from 118 to 147 µmhos/cm. A few fecal coliform samples have been collected and found to contain between 45 and 61 fc/100 ml. pH: 7.2 - 7.8. | |||||||||||||||||||||||||
|
|||||||
| Kit used: No | Type of kit used: | ||||||
| Additional information: | |||||||
| Economic losses: | |||||||
| Management decision: | Media notified; fact sheets distributed to residents around the lake, public access sites posted with warning signs. Some treatment was attempted using copper sulfate, but was, for the most part, ineffective. | ||||||
| Additional harmful effect information: | As of 10 January 1990, there have been 5 dead cats, 1 ill cat, 1 dead dog, 5 ill dogs, and 3 waterfowl that are suspected to have been due to the algae. A few necropsys have been performed, but were inconclusive. | ||||||
