Restoring habitats for Convex Crab(Chasmagnathus convexus) endangered species level Ⅱ

There are many kinds of inhabited environments such as tidal flats (8 places), uninhabited islands (23 places) in the Namhae·Sacheon district of Hallyeohaesang National Park. The Wolcha tidal flat is especially the largest... [ view full abstract ]

There are many kinds of inhabited environments such as tidal flats (8 places), uninhabited islands (23 places) in the Namhae·Sacheon district of Hallyeohaesang National Park. The Wolcha tidal flat is especially the largest habitats for Convex Crab(Chasmagnathus convexus) listed as endangered species level II.

However, as the sedimentary environment of the habitats has been simplified through coastal development and road construction, the habitats for the endangered species tend to decrease. Especially the agricultural chemical use by the local farmers greatly threats the inhabited environments and causes mass death of crabs and sea grass.

Restoring habitats for Convex Crab(Chasmagnathus convexus), the Korea National Park Service(KNPS) removed concreted roads as well as wasted tire retaining walls and increased the sand influx by creating habitats with natural stones and Seaside lawn grass(Zoysia sinica Hance) communities.

In addition, KNPS has contributed to prevention for mass death by agricultural chemical use and improvement for inhabited environments for Convex Crab(Chasmagnathus convexus) by making the agreement called "Chemical-free Agriculture Park Protection Agreement" with local residents, which supports eco-friendly fertilizers and prohibits the agricultural chemical