General Information

Event name: NI-18-001
Nature of the harmful event:
Water Discoloration , High Phyto concentration , Foam/Mucilage in the coast
Event directly affected:
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 second event recorded in Fonseca Gulf. The first one was reported in 2016 in the same area.)
Individuals to contact: Lozano Luz Marina , Flores Selvia , Saenz Carlos

Location & Date

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Location: Latitude: 13.099444, Longitude: 87.575278
General location information: Fonseca Gulf, Department of Chinandega, Nicaragua, Central America
HAB Area code(s): NI-01
Additional location information: The population near the area (30 km2) was alarmed by the green moss coloring of the waters and the presence of floating and foamy material on the shore (10 km).
Bloom event dates (yyyy/mm/dd): Event Date:2018-01-10
Start: 2018-01-02, End: 2018-01-21
Quarantine levels dates (yyyy/mm/dd):
Additional date-related information: Phaeocystis bloom lasted approx 3 weeks.


Causative organism known: Yes
Causative Species/Genus: Phaeocystis sp. (--- cells/L)
Co-Ocurring Species/Genus: Gonyaulax sp. ( cells/L)
Dinophysis sp. ( cells/L)
Prorocentrum sp. ( cells/L)
Skeletonema sp. ( cells/L)
Coscinodiscus sp. ( cells/L)
Chaetoceros sp. ( cells/L)
Biddulphia sp. ( cells/L)
Amphora sp. ( cells/L)
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:

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:
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: The nearby population could not visit their beaches due to the bad smell and floating material.
Management decision:
Additional harmful effect information:
Created at 10:18 on 26 Feb 2018