Event name: | NO-91-003 | |
Country: | NORWAY | |
Nature of the harmful event: |
High Phyto concentration , Mass mortalities | |
Event directly affected: |
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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: | Yes (Same area and same time in 1989 and 1990.) | |
Individuals to contact: | AKSNES, Dag L. |
Location: | Latitude: , Longitude: | |
General location information: |
Ryfylkefjordene., SOUTHWESTERN COAST. HAB Area code(s): NO-09 |
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Additional location information: | ||
Bloom event dates (yyyy/mm/dd): | ||
Quarantine levels dates (yyyy/mm/dd): | ||
Additional date-related information: | July-August 91. |
Causative organism known: | Yes | |
Causative Species/Genus: |
Prymnesium parvum
(100,000,00 cells/L)
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Co-Ocurring Species/Genus: | ||
Chlorophyll concentration, if known: | µg/l | |
Additional bloom information: | Gobiusculus flavescens died in less than one hour when exposed to concentrations of 4-6 mill cells/L. | |
Event-related bibliography: |
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Nutrient information: |
PHOSPHATE:
weak enrichment in early bloom
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Temperature Range During Event: | Max: °C, Min: °C | |||||||||||||||||||||||||
Salinity Range During Event: | ||||||||||||||||||||||||||
Bloom location in the water column: | ||||||||||||||||||||||||||
Growth: |
In situ |
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Growth Comments | Bloom was extremely local. Some advection within the fjord-system was observed. | |||||||||||||||||||||||||
Additional Environmental information: | Water exchange was restricted, weak phosphate enrichment was observed during early bloom, extreme P-limitation was observed during late bloom. |
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Kit used: | Type of kit used: | ||||||
Additional information: | |||||||
Economic losses: | |||||||
Management decision: | Bloom was expected, and both monitoring and research were conducted before, during and after the bloom. | ||||||
Additional harmful effect information: |