General Information

Event name: CO-15-001
Nature of the harmful event:
High Phyto concentration , 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: 10.943056, Longitude: -74.324167
General location information: Tasajera, Cienaga Grande de Santa Marta, Caribe
HAB Area code(s): COL-02
Additional location information:
Bloom event dates (yyyy/mm/dd): Event Date:2015-06-18
Quarantine levels dates (yyyy/mm/dd):
Additional date-related information: Mancera Pineda, J.E. y L.A. Vidal. 1994. Flor


Causative organism known: No
Causative Species/Genus: Anabaena sp. (7620833 cells/L)
Anabaenopsis sp.
Co-Ocurring Species/Genus:
Chlorophyll concentration, if known: µg/l
Additional bloom information:
Event-related bibliography: INVEMAR. 2015. Concepto técnico sobre la mortandad de peces en la Ciénaga Grande de Santa Marta (sector Tasajera), Magdalena. CPTCAM-011-15. 20 p.

Environmental Conditions

Weather: Turbidity (NTU): Wind direction:
Stratified water: Oxygen content (nL/L): 7 Wind velocity:
Temperature (°C): 35.4 Oxygen saturation %: 102.3 Current Direction:
Sechhi disk (m): Salinity: 31,6 Current Velocity:
Nutrient information: AMONIUM: Lower than detect..Limit (3.1) ug/L
NITRATE: Lower than detect..Limit (0.7) ug/L
PHOSPHATE: Lower than detect..Limit (2.4) ug/L
Temperature Range During Event: Max: 35,4 °C, Min: 33,7 °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:
Created at 08:01 on 28 Oct 2015
Updated at 10:38 on 25 Aug 2017