| Event name: | NL-91-004 | |
| Country: | NETHERLANDS | |
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Nature of the harmful event: |
High Phyto concentration | |
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Event directly affected: |
Humans | |
| Toxicity detected: | No | |
| Associated syndrome: | ||
| Unexplained toxicity: | No | |
| Species implicated in toxin transmission (transvector): | ||
| Report the outcome of a monitoring programme: | Yes (Phytoplankton Monitoring program. Tidal Waters Division.) | |
| Event occurred before in this location: | No | |
| Individuals to contact: | WETSTEYN, L.P.M.J | |
| Location: | Latitude: 53.167778, Longitude: 5.077222 | |
| General location information: |
Wadden Sea, HAB Area code(s): NL-01 |
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| Additional location information: | ||
| Bloom event dates (yyyy/mm/dd): |
Event Date:1991-04-01 Start: 1991-04-01, End: 1991-09-15 |
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| Quarantine levels dates (yyyy/mm/dd): | First detection: 1991-04-01, End: 1991-09-15 | |
| Additional date-related information: | Total bloom/prevalence April-September. | |
| Causative organism known: | Yes | |
| Causative Species/Genus: |
Phaeocystis sp.
(5,000,000 cells/L)
Station E30. Phaeocystis sp. (4,000,000 cells/L) Station E250. Phaeocystis sp. (6,000,000 cells/L) Station W590. Phaeocystis sp. (20,000,000 cells/L) Station W420. Phaeocystis sp. (6,000,000 cells/L) Station W30. |
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| Co-Ocurring Species/Genus: | ||
| Chlorophyll concentration, if known: | µg/l | |
| Additional bloom information: | Highest cell numbers were counted during the spring bloom in April-May. After the spring bloom values were between ca. 10,000 and 10,000,000 cell/L, although sometimes values >>1,000,000 cell/L. Were measured. | |
| Event-related bibliography: | ||
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| Temperature Range During Event: | Max: °C, Min: °C | |||||||||||||||||||||||||
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| Kit used: | Type of kit used: | ||||||
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| Economic losses: | None. | ||||||
| Management decision: | None. The goverment focusses on Phaeocsytsis as a nuisance species. | ||||||
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