It is home to a number of scarce and rare species including:
Over 100 species have been recorded including many rare and scarce species.
A number of scarce species of fly are listed from the site.
Aquatic plant communities are exceptionally diverse with good populations of nationally scarce species.
But environmental studies revealed other problems - scarce and endangered species that required protection under state law.
It is listed as a nationally scarce British species and is in serious risk of extinction.
A number of nationally scarce species of beetle have already been recorded.
That would probably help curb the demand for the scarce species.
Sea barley is a scarcer species of this habitat.
It is a scarce species, with probably around 1,000 adults but the population is probably stable.