General Information

Event name: PE-12-001
Country: PERU
Nature of the harmful event:
Water Discoloration , High Phyto concentration , Seafood toxins , Mass mortalities
Event directly affected:
Shellfish
Toxicity detected: Yes
Associated syndrome: PSP
Unexplained toxicity:
Species implicated in toxin transmission (transvector):
Report the outcome of a monitoring programme: No
Event occurred before in this location:
Individuals to contact: Sonia Sanchez

Location & Date

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Location: Latitude: -13.835556, Longitude: -76.262778
General location information: Paracas bay, Ica
HAB Area code(s): Pe_ica7
Additional location information:
Bloom event dates (yyyy/mm/dd): Event Date:2012-04-16
Start: 2012-04-16, End: 2012-05-08
Quarantine levels dates (yyyy/mm/dd):
Additional date-related information:

Microalgae

Causative organism known: Yes
Causative Species/Genus: Alexandrium ostenfeldii (Paulsen) Balech et Tangen 1985 (31000000 cells/L)
Co-Ocurring Species/Genus:
Chlorophyll concentration, if known: µg/l
Additional bloom information: associated to the presence of Vibrio alginolyticus
Event-related bibliography: 1. Orozco R., Quispe Y., Lorenzo A., Zamudio M. (2017). Asociación de floraciones de algas nocivas y Vibrio spp. en áreas de pesca y acuicultura de bivalvos de moluscos en las bahías de Sechura y Pisco, Perú. Revista peruana de biología 24(1): 111 - 116. 2. Tomasa Cuellar-Martinez, Aurora del Rocío Huanca Ochoa, Sonia Sánchez, Arturo Aguirre Velarde, David Correa, Kilder Antonio Egoavil Gallardo, Henry Fernando Luján Monja, Juan Manuel Ipanaqué Zapata, François Colas, Jorge Tam, Dimitri Gutiérrez, Paralytic shellfish toxins in Peruvian scallops associated with blooms of Alexandrium ostenfeldii (Paulsen) Balech & Tangen in Paracas Bay, Peru, Marine Pollution Bulletin, Volume 173, Part A, 2021.

Environmental Conditions

Weather: Turbidity (NTU): Wind direction:
Stratified water: Oxygen content (nL/L): Wind velocity: 2.1 - 6.4 (m3 s W
Temperature (°C): 18.4 - 22.5 Oxygen saturation %: Current Direction:
Sechhi disk (m): Salinity: Current Velocity:
Nutrient information: NITRATE: 0.76 - 9.81 μM
PHOSPHATE: 0.73 - 11.56 μM
Temperature Range During Event: Max: 22.5 °C, Min: 18.4 °C
Salinity Range During Event:
Bloom location in the water column:
Surface
Growth:
In situ
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: use of contingency plan
Additional harmful effect information:
Created at 10:01 on 17 Oct 2022
Updated at 10:09 on 17 Oct 2022
IOC/UNESCO ISSHA
IOC/UNESCO ICES PICES