| Event name: | US-17-019 | |
| Country: | UNITED STATES | |
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Nature of the harmful event: |
Seafood toxins | |
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Event directly affected: |
Shellfish | |
| Toxicity detected: | Yes (Approximate range: Domoic acid @ 32 ug/g max in shellfish) | |
| Associated syndrome: | ASP | |
| Unexplained toxicity: | ||
| Species implicated in toxin transmission (transvector): | Shellfish harvest closure in southern Narragansett Bay, RI, USA due to a Pseudo-nitzschia spp, bloom and domoic acid detection in shellfish (Northern Quahogs (Nercenaria mercenaria). Closure duration was 3/1/2017 to 3/24/2017, max domoic acid was 32ug/g | |
| Report the outcome of a monitoring programme: | Yes (RI DEM and DOH HAB phytoplankton monitoring program) | |
| Event occurred before in this location: | Yes (ASP closure in this area during October 2016.) | |
| Individuals to contact: | BORKMAN, David | |
| Location: | Latitude: 41.532778, Longitude: -71.415278 | |
| General location information: |
Lower Narragansett Bay, RI, Rhode Island HAB Area code(s): US-07 |
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| Additional location information: | Shellfish closure of lower Narragansett Bay, RI includes West Passage south of Jamestown Bridge, East Passage south of Newport Bridge and southern half of Sakonnet River. Estuarine ecosytem. Pseudo-nitzschia spp. bloom in October 2016 was followed by | |
| Bloom event dates (yyyy/mm/dd): | ||
| Quarantine levels dates (yyyy/mm/dd): | First detection: 2017-03-01, End: 2017-03-24 | |
| Additional date-related information: | decreased abundance during Nov, Dec, Jan. | |
| Causative organism known: | Yes | |
| Causative Species/Genus: |
Pseudo-nitzschia spp.
(200000 cells/L)
Class bacillariophyceae |
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| Co-Ocurring Species/Genus: | ||
| Chlorophyll concentration, if known: | ~10-20 ug/L µg/l | |
| Additional bloom information: | Information at: http://www.dem.ri.gov/shellfishclosure/habs-marine-biotoxin-monitoring.php | |
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