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 The Coast Guard Office of Commercial Vessel Compliance was notified by the State of California on the detection and identification of golden mussel (Limnoperna Fortunie) in the Port of Stockton. To minimize the spread of the golden mussel it is recommended that operators continue to ensure that ballast water management systems are operational and used in accordance with the Operational Manual for that system.

See also: Aquatic Invasive Species for related information

Multiple federal, state and local agencies have been notified of an invasive algae species discovered in Newport Bay, California in March 2021. The algae, which is native to Florida and other subtropical and tropical locales, is scientifically known as Caulerpa prolifera. It can grow quickly, choking out native seaweeds and potentially harming marine life through lost habitat.

A similar species of invasive algae, Caulerpa taxifolia, was identified in California in 2000 and was successfully eradicated through a comprehensive joint local, state and federal effort in 2006. Due to the similarity between these two species, scientists believe this algae species may pose a serious threat to our local coastal ecosystems.

However, it is imperative that the public avoid contact with the plant due to its extreme ease of recolonizing from just tiny fragments. If you believe you have seen this invasive algae, please complete a sighting report. Please do not collect a specimen, as this may lead to further spread.

Synthesis Report of the UNEP/GEF Removing Barriers to Invasive Plant Management in Africa (RBIPMA) Project, implemented in four African countries (Ethiopia, Ghana, Uganda and Zambia) between 2005 and 2010.

CABI scientists have conducted the first comprehensive study on the economic impact of a range of Invasive Alien Species (IAS) on Africa's agricultural sector, which they estimated to be USD $3.6 trillion a year. This is equivalent to 1.5 times the Gross Domestic Product (GDP) of all African countries combined – or similar to that of Germany. The average annual cost of IAS per country was USD $76.32 billion. Full details of the cost for individual countries are outlined in the paper published in the journal CABI Agriculture and Bioscience.

With increased movement of people and goods around the world, there is an increased introduction of alien (non-native) species to new areas where they can become invasive. Key to this, is knowing how the invasive species are likely to be introduced and acting to prevent further introductions through those pathways. The purpose Pathway Action Plans is to raise public awareness as well as to prevent unintentional introductions by minimizing the contamination of goods, commodities, vehicles and equipment by IAS, and ensuring appropriate checks at EU Union borders.

Invasive alien species, such as the Giant African Snail, the Lionfish and rats, are threats and can impact negatively on small island developing states such as those in the Caribbean, which are widely recognized as biodiversity hotspots. Minister of Environment and National Beautification, Trevor Prescod, pointed this out today, as he delivered the feature address at the Regional Inception Workshop for the “Preventing Costs of Invasive Alien Species (IAS) in Barbados and the Organisation of Eastern Caribbean States” Project. The workshop will seek to finalize project work plans and budgets; to approve year one work plans and budgets and to understand the United Nations Environment Programme and Centre for Agriculture and Biosciences International financial rules governing the project execution. It will also seek to understand monitoring and evaluation procedures and targets for the project, towards helping Barbados and other OECS countries manage and combat the adverse effects of IAS.

Provides access to general invasive species information for Maryland as well as report an invasive species using Maryland's Invasive Species Tracker.

See also: Aquatic Invasive Species and news posts tagged with "aquatic invasive species"