General Information

Event name: ID-97-001
Country: INDONESIA
Nature of the harmful event:
Water Discoloration
Event directly affected:
Humans
Toxicity detected: No
Associated syndrome:
Unexplained toxicity:
Species implicated in toxin transmission (transvector):
Report the outcome of a monitoring programme: Yes (Ambon Bay monitoring)
Event occurred before in this location: No
Individuals to contact: Intan, Mariana DB

Location & Date

[View larger map]
Location: Latitude: -3.641944, Longitude: 128.235278
General location information: inner part of Ambon bay, Ambon Bay
HAB Area code(s): IND-01
Additional location information: Bloom covered 500 m wide and 2 km long.
Bloom event dates (yyyy/mm/dd): Start: 1997-11-05, End: 1997-11-12
Quarantine levels dates (yyyy/mm/dd):
Additional date-related information:

Microalgae

Causative organism known: Yes
Causative Species/Genus: Alexandrium affine (Inoue et Kukuyo) Balech 1992 (4400000 cells/L)
Co-Ocurring Species/Genus: Thalassionema nitzschioides (Grunow) Mereschkowsky 1902 ( cells/L)
Planktoniella sp. ( cells/L)
Trichodesmium sp. ( cells/L)
Chlorophyll concentration, if known: 10 µg/l
Additional bloom information:
Event-related bibliography: Wagey, G. A. (2002). Ecology and physiology of phytoplankton in Ambon Bay, Indonesia (Doctoral dissertation, University of British Columbia).

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: AMONIUM: 5 uM
PHOSPHATE: 0.2 uM
Temperature Range During Event: Max: °C, Min: °C
Salinity Range During Event:
Bloom location in the water column:
Surface
Subsurface
Growth:
Growth Comments
Additional Environmental information:

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: the local people were informed about the outbreak and some precautionary actions were taken to avoid shellfish consumption until further investigations were made.
Created at 01:46 on 9 May 2024
IOC/UNESCO ISSHA
IOC/UNESCO ICES PICES