| Event name: | NZ-02-001 | |
| Country: | NEW ZEALAND | |
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Nature of the harmful event: |
High Phyto concentration , Mass mortalities | |
|
Event directly affected: |
Planktonic life , Natural Fish , Shellfish | |
| Toxicity detected: | No | |
| Associated syndrome: | ||
| Unexplained toxicity: | ||
| Species implicated in toxin transmission (transvector): | ||
| Report the outcome of a monitoring programme: | No | |
| Event occurred before in this location: | Yes (1983, 1993) | |
| Individuals to contact: | RHODES Lesley | |
| Location: | Latitude: -36.425556, Longitude: 175.189167 | |
| General location information: |
Hauraki Gulf, North Island HAB Area code(s): NZ-02 |
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| Additional location information: | ||
| Bloom event dates (yyyy/mm/dd): | Start: 2002-10-14, End: 2002-12-04 | |
| Quarantine levels dates (yyyy/mm/dd): | ||
| Additional date-related information: | ||
| Causative organism known: | Yes | |
| Causative Species/Genus: |
Karenia concordia Chang et Ryan 2004
(33 000 000 cells/L)
|
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| Co-Ocurring Species/Genus: | ||
| Chlorophyll concentration, if known: | µg/l | |
| Additional bloom information: | ||
| Event-related bibliography: | Chang, F. H., Uddstrom, M. J., Pinkerton, M. H., & Richardson, K. M. (2008). Characterising the 2002 toxic Karenia concordia (Dinophyceae) outbreak and its development using satellite imagery on the north-eastern coast of New Zealand. Harmful Algae, 7(4), 532-544. | |
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| Nutrient information: | ||||||||||||||||||||||||||
| Temperature Range During Event: | Max: °C, Min: °C | |||||||||||||||||||||||||
| Salinity Range During Event: | ||||||||||||||||||||||||||
| Bloom location in the water column: | ||||||||||||||||||||||||||
| Growth: | ||||||||||||||||||||||||||
| Growth Comments | ||||||||||||||||||||||||||
| Additional Environmental information: | Negative Southern Oscillation Index, el Nino conditions, strong north westerly winds, upwelling, nutrient avaibility | |||||||||||||||||||||||||
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| Kit used: | Type of kit used: | ||||||
| Additional information: | |||||||
| Economic losses: | The entire stock of 8500 abalones from the land-based marine farm in Kennedy bay died | ||||||
| Management decision: | |||||||
| Additional harmful effect information: | Positive haemolytic and cytotoxic laboratory tests from cells extracts of Karenia concordia | ||||||
