Japanese Kelp

Undaria pinnatifida

Description:
Japanese Kelp
Facts:

This recent invasive species forms dense forests that result in a desert beneath its fronds. This algae grows to 2 metres in height with the fronds up to 1 metre in width. It grows anywhere from the low tide mark out to a depth of 15 metres and on a variety of substrates. It has already spread rapidly in a short space of time. It also has caused problems with fouling of propellors on shipping.

Introduced:

1994
Origin:
Japan
Location:
Solent and South coast of the UK
Status:
Spreading rapidly
Problems:
Comments:
Out competes native kelps and reduces bio-diversity