| Event name: | CR-03-001 | |
| Country: | COSTA RICA | |
|
Nature of the harmful event: |
Water Discoloration , High Phyto concentration , Mass mortalities , Foam/Mucilage in the coast , Other ( strong fetid odour) | |
|
Event directly affected: |
Natural Fish , Aquaculture Fish | |
| Toxicity detected: | No | |
| Associated syndrome: | OTHER | |
| Unexplained toxicity: | Yes (ictiotoxin) | |
| Species implicated in toxin transmission (transvector): | ||
| Report the outcome of a monitoring programme: | Yes (Research project of the University of Costa Rica) | |
| Event occurred before in this location: | Yes (Gulf of Nicoya) | |
| Individuals to contact: | VARGAS MONTERO MARIBELLE | |
| Location: | Latitude: 9.979444, Longitude: -84.860556 | |
| General location information: |
Gulf of Nicoya, HAB Area code(s): CR-10 |
|
| Additional location information: | The bloom had reached its broadest spatial extent of approximately 50km2 | |
| Bloom event dates (yyyy/mm/dd): |
Event Date:2003-09-01 Start: 2003-01-01, End: 2004-06-01 |
|
| Quarantine levels dates (yyyy/mm/dd): | ||
| Additional date-related information: | ||
| Causative organism known: | Yes | |
| Causative Species/Genus: |
Cochlodinium polykrikoides Margalef 1961
(3,8x108 cells/L)
|
|
| Co-Ocurring Species/Genus: |
Trichodesmium erythraeum (Ehrenberg) Gomont 1892
( cells/L)
|
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| Chlorophyll concentration, if known: | µg/l | |
| Additional bloom information: | ||
| Event-related bibliography: | Vargas et al. 2006. Occurrence and predominance of the fish killer Cochlodinium polykrikoides on the Pacific coast of Costa Rica. African Journal of Marine Science. 28(2):215-217 | |
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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 Subsurface |
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| Growth: |
In situ |
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| Growth Comments | ||||||||||||||||||||||||||
| Additional Environmental information: | Sample collection was carried out during the dry season and the rainy season while the bloom lasted | |||||||||||||||||||||||||
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| Kit used: | Type of kit used: | ||||||
| Additional information: | |||||||
| Economic losses: | |||||||
| Management decision: | |||||||
| Additional harmful effect information: | Hundreds of dead fish,comprising members of the families Carangidae, Lutjanidae,Muraenidae, Engraulidae and Soleidae, were observed near the central Pacific coast. | ||||||
