Non-Native Species in Shetland

What are non-native species?

Non-native species, also known as 'marine aliens', are animals or plants that have been introduced to Scotland by man's activities, either accidentally or intentionally. The non-native species shown on this website have the potential to cause economic or environmental impacts in Shetland.

What are climate change indicator species?

These are plants and animals that are spreading north as the changing climate warms the sea. If found, they may indicate that the climate is changing.

Where do they grow?

The non-native species featured here prefer to grow on man-made surfaces, and will foul boat hulls, ropes, buoys and other structures. Many will also grow on other plants and animals, including mussels. The climate change indicator species live along the shore and in rock-pools, as well as on man-made structures.

Species Information