General Information

Event name: ES-17-003
Country: SPAIN
Nature of the harmful event:
Seafood toxins
Event directly affected:
Toxicity detected: Yes (Approximate range: 994.2 Ág/kg)
Associated syndrome: DSP
Unexplained toxicity:
Species implicated in toxin transmission (transvector):
Report the outcome of a monitoring programme: No
Event occurred before in this location: Yes
Individuals to contact: REVIILLA, Marta , SOLAUN, Oihana , Mu˝iz, Oihane

Location & Date

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Location: Latitude: 43.356667, Longitude: -2.448056
General location information: Longline Mendexa, Basque Country
HAB Area code(s): ES-01
Additional location information:
Bloom event dates (yyyy/mm/dd): Event Date:2017-04-25
Quarantine levels dates (yyyy/mm/dd):
Additional date-related information:


Causative organism known: Yes
Causative Species/Genus: Dinophysis acuminata (1980 cells/L)
Max. at 10m; a secondary peak at 3m (1140 cells per liter), and lower concentrations (<100 cells per liter) from 17m to 33m.
Co-Ocurring Species/Genus: Dinophysis caudata (20 cells/L)
at 10m depth.
Chlorophyll concentration, if known: 1.1 - 11.1 µg/l
Additional bloom information: Peak of chlorophyll-a (11.1 ug/l) at 10m coincided with a high abundance of Prorocentrum cordatum (2.3 x 106 cells L-1) and Pseudo-nitzschia spp. (4.8 x 105 cells L-1), together with a notable contribution of the non-toxic diatoms Guinardia delicatula (1.0 x 105 cells L-1) and Leptocylindrus convexus (1.2 x 105 cells L-1)
Event-related bibliography:

Environmental Conditions

Weather: Turbidity (NTU): Wind direction:
Stratified water: Oxygen content (nL/L): 5.0 - 7.0 Wind velocity:
Temperature (°C): 12.5 - 14.7 Oxygen saturation %: 83.8 - 121.2 Current Direction:
Sechhi disk (m): 9 Salinity: 35.5 - 35.6 Current Velocity:
Nutrient information: AMONIUM: <1.6 Ámol/L (QL)
NITRATE: <1.6 Ámol/L (QL) - 7.6 Ámol/L
NITRITE: <0.4 Ámol/L (QL)
PHOSPHATE: 0.15 - 0.45 Ámol/L
SILICATE: <1.6 Ámol/L (QL) - 3.35 Ámol/L
Temperature Range During Event: Max: °C, Min: °C
Salinity Range During Event:
Bloom location in the water column:
Growth Comments
Additional Environmental information:

Toxin Assay Information

Species containing the toxin Toxin type Toxin details Max. concentration Assay type
Mytilus galloprovincialis Okadaic Acid OA eq 994.2 Ág/kg LC-MS
Kit used: Type of kit used:
Additional information:
Economic losses:
Management decision:
Additional harmful effect information:
Created at 12:25 on 12 Jun 2017
Updated at 03:01 on 16 Mar 2018