Harmful Algal Information System: Event PT-94-025

General Information

Event name:	PT-94-025
Country:	PORTUGAL
Nature of the harmful event:	Seafood toxins
Event directly affected:
Toxicity detected:	Yes
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 (Since 1987, the year of the first confirmed occurrence, every year, with a break in 1993, we are having the problem. This year, the most affected area was Aveiro Lagoon as always.)
Individuals to contact:	SAMPAYO, Mª Antonia , VILARINHO, Mª da Graça

Location:	Latitude: , Longitude:
General location information:	Mondego estuary., Figueira de Foz. HAB Area code(s): PT-03
Additional location information:
Bloom event dates (yyyy/mm/dd):	Event Date:1994-06-01 Start: 1994-04-06, End: 1994-05-10
Quarantine levels dates (yyyy/mm/dd):
Additional date-related information:

Causative organism known:	Yes
Causative Species/Genus:	Dinophysis acuminata (700 cells/L) June 1st.
Co-Ocurring Species/Genus:
Chlorophyll concentration, if known:	µg/l
Additional bloom information:
Event-related bibliography:

Nutrient information:

Temperature Range During Event:

Max: 19 °C, Min: 16 °C

Salinity Range During Event:

Max: 36, Min: 24

Bloom location in the water column:

Growth:

Advected
In situ

Growth Comments

Most probably a combination of both.

Additional Environmental information:

Species containing the toxin	Toxin type	Toxin details	Max. concentration	Assay type
Mytilus edules & Scrobicularia plana	Okadaic Acid		Positive	Bioassay-Mouse

Kit used: No

Type of kit used:

Additional information:

DSP toxins were determined both by mouse bioassay and through HPLC.

Economic losses:

Management decision:

Harvest of affected species closed during toxication.

Additional harmful effect information:

DSP toxins were determined both by the mouse bioassay and through HPLC.

Checked at 05:35 on 22 Feb 2018