| Event name: | NO-95-006 | |
| Country: | NORWAY | |
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Nature of the harmful event: |
High Phyto concentration | |
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Event directly affected: |
Aquaculture Fish | |
| 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 (A harmful bloom of Chrysochromulina polylepis occurred in May 1988, Since then monitoring has revealed regular occurrence, about 1 000 000 cells/L, of Chrysochromulina spp. Each year in May-June, and as much as 6 000 000 cells/L in 1994,) | |
| Individuals to contact: | DAHL, Einar | |
| Location: | Latitude: , Longitude: | |
| General location information: |
Skagerrak Coast., HAB Area code(s): NO-11 |
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| Additional location information: | ||
| Bloom event dates (yyyy/mm/dd): | ||
| Quarantine levels dates (yyyy/mm/dd): | ||
| Additional date-related information: | May-June. | |
| Causative organism known: | Yes | |
| Causative Species/Genus: |
Chrysochromulina spp.
(5,500,000 cells/L)
in Flodevingen Chrysochromulina polylepis ( cells/L) |
|
| Co-Ocurring Species/Genus: | ||
| Chlorophyll concentration, if known: | µg/l | |
| Additional bloom information: | It was a mixed bloom of Chrysochromulina spp. Up to 5 500 000 cells/L recorded in the Flodevigen, among them C. polylepis. | |
| 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: |
Surface |
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| Growth: | Advected | |||||||||||||||||||||||||
| Growth Comments | The algae seemed to follow the Norwegian Coastal current. | |||||||||||||||||||||||||
| Additional Environmental information: | The bloom was found in the upper 10 m of the water column. | |||||||||||||||||||||||||
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| Kit used: | Type of kit used: | ||||||
| Additional information: | Slightly toxic to Artemia salina in a bio-test. | ||||||
| Economic losses: | |||||||
| Management decision: | Intesivation of monitoring activity. | ||||||
| Additional harmful effect information: | |||||||
