Harmful Algal Information System: Event SE-92-003

General Information

Event name:	SE-92-003
Country:	SWEDEN
Nature of the harmful event:	Mass mortalities
Event directly affected:	Natural Fish
Toxicity detected:	No
Associated syndrome:	OTHER
Unexplained toxicity:	Yes (Fish kill due to smothering? – no toxin involved? Gills were examined)
Species implicated in toxin transmission (transvector):
Report the outcome of a monitoring programme:	No
Event occurred before in this location:	Yes (1991)
Individuals to contact:	KARLSON, Bengt

Location & Date

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Location:	Latitude: 59.434167, Longitude: 18.190278
General location information:	Kyrkfjärden, Archipelago of Stockholm, inner part HAB Area code(s): SE-03
Additional location information:
Bloom event dates (yyyy/mm/dd):	Event Date:1992-06-01 Start: 1992-06-01, End: 1992-06-30
Quarantine levels dates (yyyy/mm/dd):
Additional date-related information:	Dates are not exact

Microalgae

Causative organism known:	Yes
Causative Species/Genus:	Chrysochromulina parva (27800000 cells/L) Prymnesium parvum (64400000 cells/L)
Co-Ocurring Species/Genus:
Chlorophyll concentration, if known:	µg/l
Additional bloom information:
Event-related bibliography:	Information from Torbjörn Willén through Gunnar Aneer

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: °C, Min: °C

Salinity Range During Event:

Bloom location in the water column:

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:

Affected fish: Freshwater bream (Braxen) Abramis brama European perch (Abborre) Perca fluviatilis Northern pike (Gädda) Esox lucius Bleak (Löja) Alburnus alburnus

Created at 03:57 on 6 Aug 2018
Updated at 04:29 on 18 Oct 2018