| Event name: | PT-92-006 | |
| Country: | PORTUGAL | |
|
Nature of the harmful event: |
Seafood toxins | |
|
Event directly affected: |
||
| Toxicity detected: | Yes | |
| Associated syndrome: | DSP | |
| Unexplained toxicity: | No | |
| Species implicated in toxin transmission (transvector): | ||
| Report the outcome of a monitoring programme: | Yes | |
| Event occurred before in this location: | Yes (In Portugal since 1987, the year of the first confirmed occurrence, every year until 1992 we are having the problem. This year the affected areas were reduced not only in space but also in the duration of toxication. Aveiro Rias is always the most affected area.) | |
| Individuals to contact: | SAMPAYO, Mª Antonia , VILARINHO, Mª da Graça | |
| Location: | Latitude: , Longitude: | |
| General location information: |
Mondêgo Estuary., Figueira da Foz. HAB Area code(s): PT-03 |
|
| Additional location information: | ||
| Bloom event dates (yyyy/mm/dd): | Start: 1993-08-03, End: 1993-08-24 | |
| Quarantine levels dates (yyyy/mm/dd): | ||
| Additional date-related information: | ||
| Causative organism known: | Yes | |
| Causative Species/Genus: |
Dinophysis acuta
(200 cells/L)
Dinophysis sp. (600 cells/L) Dinophysis cf. Acuminata |
|
| Co-Ocurring Species/Genus: | ||
| Chlorophyll concentration, if known: | µg/l | |
| Additional bloom information: | ||
| Event-related bibliography: | ||
|
||||||||||||||||||||||||||
| Nutrient information: | ||||||||||||||||||||||||||
| Temperature Range During Event: | Max: 18 °C, Min: 15 °C | |||||||||||||||||||||||||
| Salinity Range During Event: | Max: 35, Min: 24 | |||||||||||||||||||||||||
| Bloom location in the water column: | ||||||||||||||||||||||||||
| Growth: |
Advected
In situ |
|||||||||||||||||||||||||
| Growth Comments | Most probably a combination of both. | |||||||||||||||||||||||||
| Additional Environmental information: | ||||||||||||||||||||||||||
|
|||||||||||||||||
| Kit used: No | Type of kit used: | ||||||||||||||||
| Additional information: | Mouse biossay following Yasumoto 84, was used to determine toxification. | ||||||||||||||||
| Economic losses: | |||||||||||||||||
| Management decision: | Harvest of affected species closed during toxification. | ||||||||||||||||
| Additional harmful effect information: | Most of the bivalves from these regions presented DSP toxins: Mondêgo estuary: Mytilus edulis and Scrobicularia plana The Mouse bioassay, following Yasumoto method, 1984, was used to determine toxification. | ||||||||||||||||
