CALL 911 OR YOUR LOCAL HEALTH CARE PROVIDER IMMEDIATELY IF YOU SUSPECT SHELLFISH POISONING.
HAB Alerts
Toxin testing results and beach advisories are shared through hosting organizations. Websites are linked below for more information.
2025
- Kachemak Bay Saxitoxin Event (September)
- 10/15: Toxin Testing Results as of October 15th
- 9/27: Toxin Testing Results as of September 27th
- 9/17: First Press Release Stating that testing has found elevated saxitoxin levels in wild shellfish
- 9/17: Updated Public Service Announcement
- 9/17: Toxin Testing Results as of September 17th
- 9/12: Toxin Testing Results as of September 6th
- 9/9: Public Service Announcement
- St George Island Potential HAB Event (August)
- Kachemak Bay Potential Domoic Acid Event (July)
- 10/8: Final Press Release Stating that there was no evidence of elevated domoic acid in any samples
- 8/15: Fourth Press Release Stating that no testing has so far detected high levels of HAB toxins
- 8/1: Third Press Release Stating no new results and sharing information about the event
- 7/25: Second Press Release Announcing Preliminary Results do not detect Domoic Acid
- 7/22: Initial Press Release Addressing the Event
- Toxin Testing Results as of August 14
- Southeast Alaska Tribal Ocean Research Biotoxin Report for SE Alaska Tribes
- Active Advisories:
- 10/23: Kake: Town Flats – Butter Clams
- 10/23: Kake: Culture Camp/ Pt. White Jr – Butter Clams
- 10/8: Kodiak: K.A. Camp – All Species
- 10/7: Hydaburg: Hydaburg Beach – Butter Clams
- 10/7: Juneau: Amalga Harbor – Butter Clams
- 10/7: Juneau: Auke Rec/Pt. Louisa – Butter Clams
- 10/7: Craig: False Island Boat Launch – All Species
- https://seator.org/data/
- Knik Tribe’s Paralytic Shellfish Toxin (PST) Results – Toxin Analysis Completed by Alaska Department of Conservation’s Environmental Health Laboratory
- The Knik Tribe’s harmful algal blooms (HABs) project, Paralytic Shellfish
Poisoning Risk Management, is a 4-year project working closely with the Alaska Department of Environmental Conservation’s Environmental Health Laboratory, testing shellfish, fish, and invertebrate samples sent to us from across Alaska. - https://www.kniktribe.org/
- The Knik Tribe’s harmful algal blooms (HABs) project, Paralytic Shellfish
- Alutiiq Pride Marine Institute Shellfish Toxin Testing Program
- Results will be added here as they are shared out
- https://www.alutiiqprideak.org/hab-watch
2023
- The Imaging Flow CytoBot on board the Sikuliaq detected high concentrations of Alexandrium around the Bering Strait and St Lawrence Island
- July 28-29: maximum concentration of 47,000 cells/L
- SEATOR Biotoxin Report for SE Alaska Tribes
- Blue mussels collected in Juneau on 7/24/2023 = 133 μg/100g
- Butter clams collected in Ketchikan on 7/21/2023 = 167 μg/100g
- Blue mussels collected in Juneau on 7/18/2023 = 118 μg/100g
- Butter clams collected in Juneau on 7/18/2023 = 121 μg/100g
- Blue mussels collected in Juneau on 7/7/2023 = 1684 μg/100g
- Cockles collected in Juneau on 7/7/2023 = 1369 μg/100g
- Butter clams collected in Juneau on 7/7/2023 = 526 μg/100g
- For more info on SEATOR, please see the SEATOR website
- Knik Tribe’s HAB project has detected high values for PSP toxins:
- Blue mussels collected at Sand Point on 7/9/2023 = 621 μg/100g
- Blue mussels collected at Sand Point on 7/3/2023 = 293 μg/100g
- Blue mussels collected at Sand Point on 7/3/2023 = 2,124 μg/100g
- Blue mussels collected at Sand Point on 7/2/2023 = 465 μg/100g
- Blue mussels collected at Sand Point on 6/15/2023 = 3,793 μg/100g
- Razor clams collected at Chignik on 6/2/2023 = 311 μg/100g
- Blue mussels collected at Sand Point on 5/24/2023 = 286 μg/100g
- For more details and results, please see the Knik Tribe PSP webpage.
2022
- September 2022: High densities of Alexandrium cells were observed by the HAB cruise in the Bering Strait region at the beginning of the month. A strong storm in Western Alaska washed up clams along the coast and harvesters are encouraged to stay alert to the signs of PSP and contact their local health care providers if they experience any of the signs after consuming shellfish.
- August 2022: Alexandrium is being observed in several regions of Alaska, including near Seward, and in the Bering Strait region where very high densities were detected by the Norseman II cruise – the nearby communities have been alerted. Toxins were elevated in shellfish in Southeast, and a possible PSP case was reported, although samples were not available to confirm.
- July 2022: Alexandrium was present in the waters of Alaska, including in the Northern Bering Sea. Shellfish testing has not been conducted extensively, but the Southeast Alaska Tribal Ocean Research network has detected high levels of PST in butter shellfish across Southeast Alaska.
- June 2022: Alexandrium is present in the waters of the Gulf of Alaska, and shellfish from Unalaska and Chignik Lagoon are testing above the regulatory limit for PST.
- ADF&G Kotzebue Herring Kill (Oct 13, 2021) Pathology Report – 12/21
- Southeast AK, Kodiak, and Aleutians: blue mussel PST levels now consistently above limit – 6/24/21
- Non-harmful bloom of Mesodinium rubrum turns Kachemak Bay waters red – 5/27/21
- Satellite study links Sept 2020 Kamchatka HAB event to high temps – 3/8/21
- Razor clam digging still shut down in Pacific Northwest due to domoic acid levels – 2/5/21
- Karenia brevis (warm water dinoflagellate) leads to HAB event in Florida causing respiratory irritation and fish kills – 12/28/20
- Massive die-off and health impact in Kamchatka (Russia) linked to HABs – 11/18/20
- PSP death in Dutch Harbor; State of Alaska issues shellfish alert – 7/15/20