General Information

Event name: MX-15-011
Country: MEXICO
Nature of the harmful event:
Water Discoloration , High Phyto concentration , Seafood toxins , Mass mortalities
Event directly affected:
Planktonic life , Natural Fish
Toxicity detected: Yes (Approximate range: not reported)
Associated syndrome: NSP
Unexplained toxicity: No
Species implicated in toxin transmission (transvector): There were no poisonings or human deaths
Report the outcome of a monitoring programme: Yes (Mareas Rojas (COFEPRIS))
Event occurred before in this location: Yes (The regularity is not known, however it occurs some years and others not)
Individuals to contact: Rosalba Alonso Rodriguez , COFEPRIS

Location & Date

[View larger map]
Location: Latitude: 25.879722, Longitude: -97.504722
General location information: Matamoros, Soto La Marina, San Fernando and Altamira, Tamaulipas, north of Gulf of Mexico
HAB Area code(s): GM
Additional location information: The event covered the entire coast of the state of Tamaulipas, Mexico
Bloom event dates (yyyy/mm/dd): Start: 2015-09-25, End: 2016-07-12
Quarantine levels dates (yyyy/mm/dd):
Additional date-related information: Staggered closure in the four localities

Microalgae

Causative organism known: Yes
Causative Species/Genus: Karenia brevis (800,000 cells/L)
Co-Ocurring Species/Genus:
Chlorophyll concentration, if known: µg/l
Additional bloom information:
Event-related bibliography: https://www.gob.mx/cms/uploads/attachment/file/201769/Presencia_de_Marea_Roja_en_costas_nacionales_durante_2015.pdf

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:
Growth Comments
Additional Environmental information: mcastilloc@cofepris.gob.mx

Toxin Assay Information

Species containing the toxin Toxin type Toxin details Max. concentration Assay type
Kit used: Type of kit used:
Additional information: not reported
Economic losses: not evaluated
Management decision: sanitary closure
Additional harmful effect information: Death of 45 Ton of fishes
Created at 12:00 on 4 Jan 2019
Updated at 06:51 on 23 Nov 2021
IOC/UNESCO ISSHA
IOC/UNESCO ICES PICES