General Information

Event name: US-17-013
Country: UNITED STATES
Nature of the harmful event:
Water Discoloration
Event directly affected:
Toxicity detected: No
Associated syndrome:
Unexplained toxicity: No
Species implicated in toxin transmission (transvector):
Report the outcome of a monitoring programme: Yes (Suffolk County)
Event occurred before in this location: Yes (Cochlodinium polykikoides has bloomed annually since 2004)
Individuals to contact: GOBLER

Location & Date

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Location: Latitude: , Longitude:
General location information: Shinnecock Bay, Peconic Bay estuary, Sag harbor, Three Mile Harbor, NY
HAB Area code(s): US-08
Additional location information: Patches of discolored water were observed in coves, harbors, and in open-estuarine areas
Bloom event dates (yyyy/mm/dd):
Quarantine levels dates (yyyy/mm/dd):
Additional date-related information: July-September

Microalgae

Causative organism known: Yes
Causative Species/Genus: Margalefidinium polykrikoides (Margalef, 1961) F.Gómez, Richlen & D.M.Anderson, 2017 (7000000 cells/L)
Maximum densities were observed on 7/15/17
Co-Ocurring Species/Genus:
Chlorophyll concentration, if known: µg/l
Additional bloom information:
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:
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 07:58 on 23 Apr 2018
Updated at 04:19 on 26 Jun 2020
IOC/UNESCO ISSHA
IOC/UNESCO ICES PICES