General Information

Event name: CO-15-009
Nature of the harmful event:
Mass mortalities
Event directly affected:
Natural Fish
Toxicity detected: No
Associated syndrome:
Unexplained toxicity:
Species implicated in toxin transmission (transvector):
Report the outcome of a monitoring programme: No
Event occurred before in this location: Yes (Many times between 1994 to 2016)
Individuals to contact: Mancera, Jose Ernesto , Julian Franco

Location & Date

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Location: Latitude: 10.840556, Longitude: -74.482778
General location information: Caño Grande- Complejo Pajarales, Cienaga Grande de Santa Marta, Caribe
HAB Area code(s): COL-02
Additional location information:
Bloom event dates (yyyy/mm/dd): Event Date:2015-11-13
Quarantine levels dates (yyyy/mm/dd):
Additional date-related information:


Causative organism known: Yes
Causative Species/Genus: Anabaena sp. (4’846.640 cells/L)
Anabaenopsis sp.
Co-Ocurring Species/Genus:
Chlorophyll concentration, if known: 34,7 µg/l
Additional bloom information:
Event-related bibliography: INVEMAR 2015. Concepto técnico sobre mortandad de peces en la Ciénaga Grande de Santa Marta (sector caño Grande - Pajarales), ocurrida en noviembre de 2015. CPT-CAM-022-15. 19 p.

Environmental Conditions

Weather: Turbidity (NTU): Wind direction:
Stratified water: Oxygen content (nL/L): Wind velocity:
Temperature (°C): 33,5 Oxygen saturation %: Current Direction:
Sechhi disk (m): Salinity: 34,9 Current Velocity:
Nutrient information: AMONIUM: 4,7 μg/L
NITRITE: 0,8 μg/L
Temperature Range During Event: Max: 33,8 °C, Min: 29,7 °C
Salinity Range During Event: Max: 35,3, Min: 29,5
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:
Management decision:
Additional harmful effect information:
Created at 06:28 on 25 Aug 2017
Updated at 09:45 on 25 Aug 2017