Harmful Algal Information System: Event ES-22-002

General Information

Event name:	ES-22-002
Country:	SPAIN
Nature of the harmful event:	Seafood toxins
Event directly affected:
Toxicity detected:	Yes (Approximate range: 161 - 963 痢 OA eq./kg)
Associated syndrome:	DSP
Unexplained toxicity:	No
Species implicated in toxin transmission (transvector):
Report the outcome of a monitoring programme:	Yes
Event occurred before in this location:	Yes (annually in spring)
Individuals to contact:	REVIILLA, Marta , SOLAUN, Oihana

Location:	Latitude: 43.356667, Longitude: -2.448056
General location information:	Longline Mendexa, Basque Country HAB Area code(s): ES-01
Additional location information:	Open marine waters
Bloom event dates (yyyy/mm/dd):	Event Date:2022-04-26
Quarantine levels dates (yyyy/mm/dd):	First detection: 2022-04-26, End: 2022-05-23
Additional date-related information:	Suspicion: one bloom in April, another in May

Causative organism known:	Yes
Causative Species/Genus:	Dinophysis acuminata (480 cells/L) Max. 2022-05-03, at 0-10 m (hose).
Co-Ocurring Species/Genus:	Dinophysis sacculus (80 cells/L) 2023-05-03, 0-10 m (hose) Dinophysis caudata (20 cells/L) 2023-05-03, 0-10 m (hose) Dinophysis tripos ( cells/L) net (0-45 m) Dinophysis acuta (80 cells/L) 2023-05-03, 20-30 m (hose)
Chlorophyll concentration, if known:	0.3 (maximum, at 30 m) µg/l
Additional bloom information:
Event-related bibliography:

Weather:	April ended with warm and sunny conditions, after some days of heavy rain.	Turbidity (NTU):		Wind direction:
Stratified water:		Oxygen content (nL/L):		Wind velocity:
Temperature (°C):	13.3-15.1	Oxygen saturation %:		Current Direction:
Sechhi disk (m):	14	Salinity:	34.7-35.1	Current Velocity:

Nutrient information:

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:

Chl-a and hydrographic data refer to the water column (0-30 m), on 2022-05-03.

Species containing the toxin	Toxin type	Toxin details	Max. concentration	Assay type
Mytilus galloprovincialis	Okadaic Acid	OA	911 ug OA eq./kg	LC-MS
Mytilus galloprovincialis	Okadaic Acid	DTX2	52 ug OA e	LC-MS

Kit used: No

Type of kit used:

Additional information:

Economic losses:

Management decision:

Temporary closure of the bivalves production zone

Additional harmful effect information:

Created at 01:07 on 16 Mar 2023
Updated at 02:28 on 27 Mar 2023