General Information

Event name: PT-88-003
Country: PORTUGAL
Nature of the harmful event:
Water Discoloration
Event directly affected:
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 (Frequent at Óbidos Lagoon and Albufeira Lagoon)
Individuals to contact: SAMPAYO, Mª Antonia

Location & Date

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Location: Latitude: , Longitude:
General location information: Inner branch of Óbidos Lagoon, Barresa
HAB Area code(s): PT-01
Additional location information:
Bloom event dates (yyyy/mm/dd): Start: 1988-06-25, End: 1988-06-30
Quarantine levels dates (yyyy/mm/dd):
Additional date-related information:

Microalgae

Causative organism known: No
Causative Species/Genus: Prorocentrum minimum (3.7x10(7) cells/L)
Co-Ocurring Species/Genus:
Chlorophyll concentration, if known: µg/l
Additional bloom information: Other counts: little centric diatoms
Event-related bibliography:

Environmental Conditions

Weather: Turbidity (NTU): Wind direction:
Stratified water: Oxygen content (nL/L): Wind velocity:
Temperature (°C): Oxygen saturation %: Current Direction:
Sechhi disk (m): Salinity: Current Velocity:
Nutrient information:
Temperature Range During Event: Max: 18 °C, Min: 16 °C
Salinity Range During Event: Max: 25, Min: 22
Bloom location in the water column:
Growth:
Growth Comments
Additional Environmental information: Discoloration: brownish-green

Toxin Assay Information

Species containing the toxin Toxin type Toxin details Max. concentration Assay type
Kit used: Type of kit used:
Additional information:
Economic losses:
Management decision:
Additional harmful effect information: Oxygen deficiency observed at several localities in the early morning. Fish kills: none
Checked at 05:32 on 22 Feb 2018
IOC/UNESCO ISSHA
IOC/UNESCO ICES PICES