Event name: | NO-93-002 | |
Country: | NORWAY | |
Nature of the harmful event: |
Mass mortalities | |
Event directly affected: |
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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: | No | |
Individuals to contact: | DAHL, Einar , MARTINUSSEN, Ingrid |
Location: | Latitude: , Longitude: | |
General location information: |
Byfjorden Bergen., West Coast. HAB Area code(s): NO-08 |
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Additional location information: | ||
Bloom event dates (yyyy/mm/dd): | ||
Quarantine levels dates (yyyy/mm/dd): | ||
Additional date-related information: | May. |
Causative organism known: | Yes | |
Causative Species/Genus: |
Chrysochromulina sp.
( cells/L)
Identified in EM by Wenche Eikrem, Oslo Univ. |
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Co-Ocurring Species/Genus: |
Skeletonema costatum
( cells/L)
Emiliania huxleyi ( cells/L) |
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Chlorophyll concentration, if known: | µg/l | |
Additional bloom information: | Chrysochromulina sp. was mixed up with Chaetoceros wighamii and Skeletonema costatum. A mixed bloom of Emiliana huxleyi and diatoms was going on in adjacent fjords, which were under the influence of the Norwegian coastal current. | |
Event-related bibliography: |
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Nutrient information: | ||||||||||||||||||||||||||
Temperature Range During Event: | Max: 13 °C, Min: 12 °C | |||||||||||||||||||||||||
Salinity Range During Event: | Max: 18, Min: 15 | |||||||||||||||||||||||||
Bloom location in the water column: | ||||||||||||||||||||||||||
Growth: |
In situ |
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Growth Comments | The bloom probably started in a cove with some advection into the fjord. | |||||||||||||||||||||||||
Additional Environmental information: |
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Kit used: | Type of kit used: | ||||||
Additional information: | The water showed positive synaptosome test when tested for toxicity. Anne Sophie Meldahl, Norwegian Defence Research Establishment, division for Environmental Toxicology. | ||||||
Economic losses: | |||||||
Management decision: | |||||||
Additional harmful effect information: |