However, the moist bottom mud helps Taiwan water celery survive the dry period.

[4] This showed that there were differences in its biochemistry from terrestrial plants that had adopted the same strategy for CO2 fixation, namely Crassulacean acid metabolism (CAM).

In addition, the time of day of the peak abundance of some of the components of CAM was different from terrestrial plants.

[4] Isoetes taiwanensis could tolerate and overcome the drought stress and quickly recover once the habitat condition become adequate.

[5] Isoetes taiwanensis, which was classified as a critically endangered species by the International Union of Conservation of Nature in 2001.

In order to protect the habitat, scientists are conducting research on the terrain around the Menghuan Pond.

The adaptative water level management at the planning and design phases and rehabilitating these essential habitat patterns to enrich the survival of Isoetes taiwanensis in the dry season.