| Event name: | CA-20-004 | |
| Country: | CANADA | |
|
Nature of the harmful event: |
Water Discoloration , High Phyto concentration , Mass mortalities , Foam/Mucilage in the coast | |
|
Event directly affected: |
Planktonic life , Natural Fish , Shellfish , Humans | |
| Toxicity detected: | No | |
| Associated syndrome: | OTHER | |
| Unexplained toxicity: | ||
| Species implicated in toxin transmission (transvector): | ||
| Report the outcome of a monitoring programme: | No | |
| Event occurred before in this location: | No | |
| Individuals to contact: | McKENZIE, Cynthia | |
| Location: | Latitude: 47.555556, Longitude: -54.833056 | |
| General location information: |
Little Bay East Barachois, Fortune Bay NL HAB Area code(s): CA-31 |
|
| Additional location information: | ||
| Bloom event dates (yyyy/mm/dd): |
Event Date:2020-07-09 |
|
| Quarantine levels dates (yyyy/mm/dd): | ||
| Additional date-related information: | mass mortality event reported on event date | |
| Causative organism known: | Yes | |
| Causative Species/Genus: |
Rhodomonas marina (Dangeard) Lemmermann 1900
( cells/L)
not quantified, visual bloom levels Oscillatoria sp. ( cells/L) mats along the shoreline |
|
| Co-Ocurring Species/Genus: | ||
| Chlorophyll concentration, if known: | 70 to 80 ug/L µg/l | |
| Additional bloom information: | high biomass of both species seemed to have caused hypoxia throughout the water column O2 levels low | |
| 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: | Whole column | |||||||||||||||||||||||||
| Growth: |
In situ |
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| Growth Comments | ||||||||||||||||||||||||||
| Additional Environmental information: | herring school trapped in barachois, died due to lack of oxygen then nutrients caused high mass phytoplankton bloom | |||||||||||||||||||||||||
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| Kit used: | Type of kit used: | ||||||
| Additional information: | |||||||
| Economic losses: | |||||||
| Management decision: | removal/burial of affected species | ||||||
| Additional harmful effect information: | species impacted included all, fish, invertebrates , crabs, shellfish and worms | ||||||
