Harmful Algal Information System: Event US-88-009

General Information

Event name:	US-88-009
Country:	UNITED STATES
Nature of the harmful event:
Event directly affected:
Toxicity detected:	No
Associated syndrome:
Unexplained toxicity:
Species implicated in toxin transmission (transvector):
Report the outcome of a monitoring programme:	No
Event occurred before in this location:	Yes (1985, 1986, 1987 (brown water blooms))
Individuals to contact:	OLSEN, Paul

Location:	Latitude: , Longitude:
General location information:	Barnegat Bay, New Jersey, HAB Area code(s): US-01
Additional location information:
Bloom event dates (yyyy/mm/dd):
Quarantine levels dates (yyyy/mm/dd):
Additional date-related information:	Mid July - late September

Causative organism known:	Yes
Causative Species/Genus:	Nannochloris atomus ( cells/L) presumptive identification
Co-Ocurring Species/Genus:	Aureococcus anophagefferens ( cells/L) < 7.5%
Chlorophyll concentration, if known:	µg/l
Additional bloom information:	Total picoplankton 105 - 106 cells ml"1 Chlorophyll North end 12 痢 1(-1) Chlorophyll South end 24 痢 1(-1)
Event-related bibliography:

Nutrient information:

Temperature Range During Event:

Max: 27 °C, Min: 22 °C

Salinity Range During Event:

Max: 27, Min: 20

Bloom location in the water column:

Growth:

Growth Comments

In situ (?). N. atomus present for at least 20 years A. anophagefferens, unknown origin

Additional Environmental information:

Water column mixed

Species containing the toxin

Toxin type

Toxin details

Max. concentration

Assay type

Kit used:

Type of kit used:

Additional information:

Economic losses:

Management decision:

Increased surveillance

Additional harmful effect information:

Brownish water discoloration. Large mats of dead eel grass on shores, coincident with brown water.