Harmful Algal Information System: Event US-20-019

General Information

Event name:	US-20-019
Country:	UNITED STATES
Nature of the harmful event:	Water Discoloration , High Phyto concentration
Event directly affected:	Natural Fish
Toxicity detected:	No
Associated syndrome:
Unexplained toxicity:	No
Species implicated in toxin transmission (transvector):
Report the outcome of a monitoring programme:	Yes (Long Island Marine Monitoring Network)
Event occurred before in this location:	Yes
Individuals to contact:	Young, Craig

Location:	Latitude: , Longitude:
General location information:	Long Island, New York HAB Area code(s): US-08
Additional location information:	Great South Bay, Narrow Bay, Moriches Bay, Quantuck Bay, Shinnecock Bay, Moneybogue Bay
Bloom event dates (yyyy/mm/dd):	Start: 2020-05-21, End: 2020-10-09
Quarantine levels dates (yyyy/mm/dd):
Additional date-related information:

Causative organism known:	Yes
Causative Species/Genus:	Aureococcus anophagefferens (41,773,000 cells/L)
Co-Ocurring Species/Genus:	Synechococcus spp. (>3,000,000,000 cells/L)
Chlorophyll concentration, if known:	µg/l
Additional bloom information:	The year 2020 marks the third consecutive year in 13 years that maximum concentrations of Aureococcus anophagefferens did not exceed 1.5 billion cells/L in the affected region.
Event-related bibliography:

Nutrient information:

Temperature Range During Event:

Max: 27.3 °C, Min: 15.8 °C

Salinity Range During Event:

Max: 31.3, Min: 26.3

Bloom location in the water column:

Surface

Growth:

In situ

Growth Comments

Additional Environmental 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 08:04 on 23 Apr 2021