The Latvian government has officially designated the Spanish slug, scientifically known as 'Arion vulgaris', as an invasive alien species. This decision, made on Tuesday, is part of a broader governmental initiative aimed at tackling species that pose significant threats to Latvia's biodiversity, ecosystems, human health, or economy but are not listed under the European Union's invasive species regulations. Alongside this designation, specific management measures are being put in place to control the spread of such species, including destruction and ecosystem restoration actions.

The Spanish slug is recognized as one of the most problematic invasive animal species in Europe due to its rapid reproduction and ability to spread in the wild. This species can significantly disrupt local ecosystems, threatening natural habitats and potentially hybridizing with local snail species, leading to further ecological imbalance. The inclusion of the Spanish slug in Latvia's invasive species list underscores the growing concern among Latvian authorities regarding the impact of non-native species on local biodiversity.

Previously, the Spanish slug was first identified in Latvia in 2009 in the village of Pāstende. Its spread since then has raised alarms among environmentalists, prompting the government to act decisively against its proliferation. The measures implemented are part of a broader effort to protect Latvia’s native ecosystems from invasive species and ensure the health of its biodiversity for future generations.