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The green crab is considered one of the most invasive species in the marine environment. It has few predators, aggressively hunts and eats its prey, destroys seagrass, and outcompetes local species for food and habitat. Green crab could potentially damage Alaska’s multi-billion dollar fisheries industries, especially for salmon, crab, and mariculture operations. There are three simple steps you can take to help find, remove and report these crabs on your local beaches. Find it, Keep it, Freeze it!

See also: Official 2019 Endorsement of the Advisory List of Invasive Plants [PDF, 711 KB] by the Maine Department of Agriculture, Conservation and Forestry.

Making a List: Prevention Strategies for Invasive Plants in the Great Lakes States surveys plant listing programs in Illinois, Indiana, Michigan, Minnesota, Ohio, and Wisconsin to assess the effectiveness of listing as a tool to prevent the proliferation and spreads of invasive plant species.

The National European Green Crab (EGC) Management and Control Plan was developed by a multi-agency European Green Crab Working Group for implementation by the Aquatic Nuisance Species Task Force following final approval.

The purpose of the 2023 EGC plan is to provide guidance for efforts to prevent future introductions, to rapidly detect and respond to new invasions of EGC before they become established and create ecological and economic damage, and to manage current populations that pose an undue threat to resources of importance for ecosystems and local cultures. The 2023 EGC plan proposes to update the 2002 plan by providing a more focused set of approaches for future management, based on significant changes in the distribution of EGC, new technologies available for identifying sources and mechanisms of spread, better information regarding the tradeoffs for different management efforts, and new methods for data management and sharing. The 2023 EGC plan also describes current strategies for coordinating the activities of scientists, resource agencies, Tribal and First Nation organizations, and other entities.

Public Comment Period -- Written comments must be submitted on or before February 9, 2024. For more information, see the Federal Register notice Draft Revised National European Green Crab Management and Control Plan (Dec 26, 2023)

In celebration of World Fisheries Day, the Manitoba government has launched a new, interactive website called Lake Information for Anglers, Agriculture and Resource Development Minister Blaine Pedersen announced today. The new, interactive website provides valuable information in an easily accessible format to assist anglers in planning their next fishing trip. The site is home to information about fishing divisions, lake contour maps, fisheries assessment summaries, aquatic invasive species and boat launches for numerous drive-to lakes in Manitoba. The new Lake Information for Anglers website can be seen at www.manitobafisheries.com.

See also: Manual of Diagnostic Tests and Vaccines for Terrestrial Animals for more diseases

Chapter 20 (pages 232-244) in:  Invasive Plant Management Issues and Challenges in the United States: 2011 Overview; Westbrooks, R., et al.; ACS Symposium Series; American Chemical Society: Washington, DC, 2011.

There is mounting concern over the increase in debris in our ocean and the potential for that debris to assist in the spread of non-native species. While the pathways associated with global shipping draw the greatest amount of attention regarding marine invasives, the purpose of this paper is to consider the potential role that marine debris may play in introducing non-native species that may become invasive. This report reviews the scientific literature that exists on the subject and identifies areas where more research is needed.