Harmful Algal Information System: Event ID-97-001

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

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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