General Information

Event name: NI-16-001
Nature of the harmful event:
Water Discoloration , High Phyto concentration , Foam/Mucilage in the coast
Event directly affected:
Natural Fish
Toxicity detected: No
Associated syndrome:
Unexplained toxicity: No
Species implicated in toxin transmission (transvector): ---
Report the outcome of a monitoring programme: No
Event occurred before in this location: Yes (The bloom of Phaeocystis sp is the first event recorded in Fonseca Gulf. In 2012 a bloom of Cochlodinium polykrikoides was reported in the same area.)
Individuals to contact: Gutierrez Ronaldo , Lozano Luz Marina , Flores Selvia

Location & Date

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Location: Latitude: 13.006389, Longitude: 87.500278
General location information: Fonseca Gulf, Department of Chinandega, Nicaragua, Central America
HAB Area code(s): NI-01
Additional location information: The population near the coastal area (3 km of shoreline) was alarmed by the green moss coloring of the waters and the presence of floating and foamy material on the shore. They reported that the floating material was in the form of transparent balls.
Bloom event dates (yyyy/mm/dd): Event Date:2016-03-04
Start: 2016-03-01, End: 2016-04-11
Quarantine levels dates (yyyy/mm/dd):
Additional date-related information: The algal bloom lasted approximately two week


Causative organism known: Yes
Causative Species/Genus: Phaeocystis sp. (-- cells/L)
monospecific bloom
Co-Ocurring Species/Genus:
Chlorophyll concentration, if known: -- µg/l
Additional bloom information: The population reported that the floating material was in the form of transparent balls with water content with generation of bad smell.
Event-related bibliography: The authorities of the Ministry of Health (MINSA, Chinandega) drafted a report about the presence of algae in Potosí beach.

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: Whole column
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:
Additional harmful effect information: The nearby population could not visit their beaches due to the bad smell and floating material.
Created at 09:59 on 26 Feb 2018