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Invasive Species Results

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Millionth Spiny Superhero Released to Devour Hawaiʻi's Coral-Smothering Algae

One million sea urchins have now been deployed through the Hawaii Division of Aquatic Resources’ work in partnership with NOAA to restore corals after the M/V Cape Flattery grounded on an Oʻahu reef.
December 06, 2023 - Feature Story ,

Green Crab Detected in Alaska for the First Time

NOAA Fisheries and partners confirm presence of invasive green crabs on Annette Islands Reserve.
August 24, 2022 - Feature Story ,
The carapace of an invasive green crab, and a live green crab. Credit: Linda Shaw/NOAA Fisheries The carapace of an invasive green crab, and a live green crab. Credit: Linda Shaw/NOAA Fisheries

Invasive Green Crab Monitoring: Partnerships Propel Species Management

Metlakatla Indian Community Department of Fish and Wildlife deploys updated methods to monitor invasive species.
March 02, 2022 - Feature Story ,
A female European green crab with its egg mass.

Look Out for Invasive Crab!

The green crab is invading from the west coast and has recently reached Alaska.

Habitat Conservation Division’s Accomplishment Reports

HCD highlights the division's most important achievements every year in an easy to read document.
January 25, 2021 - Other Reports ,

Using eDNA to Monitor Alaskan Waters for Invasive European Green Crabs

Voracious crustacean known to gobble juvenile salmon and outcompete Dungeness crab.
December 01, 2020 - Feature Story ,
European green crab A European green crab. Credit: Emily Grason/Washington Seagrant

Aquatic Invasive Species in Alaska

Invasive species can alter ecosystems; displace, compete and prey on native species; foul infrastructure; sicken humans by causing diseases.
Invasive green crab carapace Invasive green crab carapace and carcass discovered on Annette Island in July, 2022 - Credit, Linda Shaw, NOAA Fisheries.

Bay Invaders: The Blue Catfish Fishery

NOAA Fisheries Chesapeake Bay Office works with partners to manage invasive catfish.
March 20, 2018 - Feature Story ,

Impacts of Invasive Lionfish

Lionfish are native to coral reefs in the tropical waters of the South Pacific and Indian Oceans. But you don't have to travel halfway around the world to see them. This is an invasive species that threatens the well-being of coral reefs and other marine ecosystems, including the commercially and recreationally important fishes that depend on them. NOAA and its partners are working hard to develop ways to prevent further spread and control existing populations.

NOAA Helps Implement Community-Based Invasive Species Monitoring as part of Bering Sea Days

Scientists and educators participate in Bering Sea Days, an annual week-long education program on St. Paul Island.
January 03, 2018 - Feature Story ,
children looking through a microscope in a laboratory