General Information

Event name: MX-03-001
Country: MEXICO
Nature of the harmful event:
Water Discoloration , High Phyto concentration , Mass mortalities , Foam/Mucilage in the coast
Event directly affected:
Planktonic life , Natural Fish , Aquaculture Fish , Shellfish
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:
Individuals to contact: Rosalba Alonso Rodriguez

Location & Date

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Location: Latitude: 28.897222, Longitude: -112.053333
General location information: Kun Kaak Bay, Sonora
HAB Area code(s): GC
Additional location information:
Bloom event dates (yyyy/mm/dd): Event Date:2003-05-17
Quarantine levels dates (yyyy/mm/dd):
Additional date-related information:


Causative organism known: Yes
Causative Species/Genus: Chattonella marina (5.68 x 10^5 cells/L)
Co-Ocurring Species/Genus:
Chlorophyll concentration, if known: µg/l
Additional bloom information:
Event-related bibliography: Barraza-Guardado, R., Cortés-Altamirano, R., Sierra-Beltrán, A. 2004. Marine die-offs from Chattonella marina and Ch. cf. ovata in Kun Kaak Bay, Sonora in the Gulf of California. Harmful Algae News. 25: 7-8.

Environmental Conditions

Weather: Turbidity (NTU): Wind direction:
Stratified water: Oxygen content (nL/L): Wind velocity:
Temperature (°C): 25 Oxygen saturation %: Current Direction:
Sechhi disk (m): Salinity: 37 Current Velocity:
Nutrient information: NITRITE: 0.2 mg l-1
PHOSPHATE: 1.09 mg l-1
Temperature Range During Event: Max: 26.9 °C, Min: 25.9 °C
Salinity Range During Event: Max: 38, Min: 36
Bloom location in the water column: Whole column
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:
Additional harmful effect information:
Created at 08:54 on 7 Feb 2018
Updated at 08:59 on 7 Feb 2018