General Information

Event name: IS-16-007
Country: ICELAND
Nature of the harmful event:
Seafood toxins
Event directly affected:
Shellfish
Toxicity detected: Yes (Approximate range: DSP 49-1873 g/kg)
Associated syndrome: DSP
Unexplained toxicity: No
Species implicated in toxin transmission (transvector): Dinophysis spp
Report the outcome of a monitoring programme: Yes (Monitoring of harmful alge in Iceland)
Event occurred before in this location: Yes (several times)
Individuals to contact: Gudfinnsson, Hafsteinn

Location & Date

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Location: Latitude: 64.366667, Longitude: -21.550556
General location information: Hvalfjordur, West Iceland
HAB Area code(s): IS-002
Additional location information:
Bloom event dates (yyyy/mm/dd): Event Date:2016-07-19
Start: 2016-05-30, End: 2016-12-31
Quarantine levels dates (yyyy/mm/dd): First detection: 2016-05-30, End: 2016-12-31
Additional date-related information: DSP still high in the end of the year 2016

Microalgae

Causative organism known: Yes
Causative Species/Genus: Dinophysis spp. (7520 cells/L)
Mainly D.acuminata and D. norvegica
Co-Ocurring Species/Genus:
Chlorophyll concentration, if known: µg/l
Additional bloom information: Diatoms and dinoflagellates
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: °C, Min: °C
Salinity Range During Event:
Bloom location in the water column:
Subsurface
Growth:
Growth Comments
Additional Environmental information:

Toxin Assay Information

Species containing the toxin Toxin type Toxin details Max. concentration Assay type
Dinophysis spp Okadaic Acid DTX1 1873 g/kg LC-MS
Kit used: Type of kit used:
Additional information:
Economic losses:
Management decision: Closure of harvesting area from June to December and to the spring of the year2017 because of high DSP in blue mussel.
Additional harmful effect information:
Created at 12:21 on 6 Mar 2019
Updated at 10:39 on 3 Apr 2019
IOC/UNESCO ISSHA
IOC/UNESCO ICES PICES