| Event name: | NO-01-001 | |
| Country: | NORWAY | |
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Nature of the harmful event: |
Mass mortalities | |
|
Event directly affected: |
Aquaculture Fish | |
| Toxicity detected: | No | |
| Associated syndrome: | ||
| Unexplained toxicity: | No | |
| Species implicated in toxin transmission (transvector): | ||
| Report the outcome of a monitoring programme: | No | |
| Event occurred before in this location: | Yes (bloom in 1998, present in 2000.) | |
| Individuals to contact: | NAUSTVOLL, Lars-Johan | |
| Location: | Latitude: , Longitude: | |
| General location information: |
Skagerrak, Flødevigen., HAB Area code(s): NO-11 |
|
| Additional location information: | The bloom was obseved along the Swedish west-coast and the southern coast of Norway, from Oslofjord to Lista. ICES fishing area: II a. | |
| Bloom event dates (yyyy/mm/dd): | Start: 2001-03-14, End: 2001-03-26 | |
| Quarantine levels dates (yyyy/mm/dd): | ||
| Additional date-related information: | The bloom started in Norwegian waters (Flødevigen) ca 14.03.01 with a maximum concentration around 26.03.01. The bloom was terminated in the beginning of april. | |
| Causative organism known: | Yes | |
| Causative Species/Genus: |
Chattonella sp.
(13,7 x (10 cells/L)
Chattonella cf. Marina |
|
| Co-Ocurring Species/Genus: |
Heterosigma akashiwo
(13 million cells/L)
|
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| Chlorophyll concentration, if known: | 11.4 µg/L Chlª. µg/l | |
| Additional bloom information: | ||
| 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 | ||||||||||||||||||||||||||
| Additional Environmental information: | Phosphate and nitrate were exausted while there were some silicate left in the surface. | |||||||||||||||||||||||||
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| Kit used: | Type of kit used: | ||||||
| Additional information: | No toxins were recorded neither from mouse-bioassay, Elisa-methods or application of LC/MS. Materials screened for toxin content were: phytoplankton collected by filtration, mussel meat and fish meat. | ||||||
| Economic losses: | 1000 tonnes of salmon. | ||||||
| Management decision: | |||||||
| Additional harmful effect information: | |||||||
