Harmful Algal Information System: Event US-91-005

General Information

Event name:	US-91-005
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
Event occurred before in this location:	Yes (Has been subdominant in annually recurring red tides in the NJ northern estuarine and coastal region; reported as dominant red tide species in adjacent Long Island.)
Individuals to contact:	OLSEN, Paul

Location:	Latitude: , Longitude:
General location information:	Hudson-Raritan estuary., New York / New Jersey. HAB Area code(s): US-09
Additional location information:
Bloom event dates (yyyy/mm/dd):	Event Date:1991-05-25 Start: 1991-05-20, End: 1991-06-01
Quarantine levels dates (yyyy/mm/dd):
Additional date-related information:	Peak about May 25.

Causative organism known:	Yes
Causative Species/Genus:	Prorocentrum minimum (25,000,000 cells/L)
Co-Ocurring Species/Genus:
Chlorophyll concentration, if known:	µg/l
Additional bloom information:
Event-related bibliography:

Nutrient information:

Temperature Range During Event:

Max: °C, Min: °C

Salinity Range During Event:

Bloom location in the water column:

Growth:

In situ

Growth Comments

Additional Environmental information:

Water clear but becoming turbid; generally shallow (<5 m). Slight stratification in deeper areas.

Species containing the toxin

Toxin type

Toxin details

Max. concentration

Assay type

Kit used: No

Type of kit used:

Additional information:

Economic losses:

Management decision:

Continued monitoring by NJDEP/USEPA.

Additional harmful effect information:

Red water in estuary, especially in Sandy Hook Bay south shore area.