Cymodocea Rotundata in Indonesia and its global threats
Seagrass is one of Angiospermae which have adapted to live immersed in sea water. Structurally, seagrasses have a stem (rhizome), roots, leaves and flower. Seagrass is an important habitat for many species of marine animals, such as: fish, mollusks, crustacea, echinoderms, sea turtles etc. Besides the seagrass can help maintain water quality, shoreline protection and provide a variety of resources that can be used to sustain the life of the community, such as for food, fisheries, medicinal raw materials, and tourism.
In reproduction, Seagrass has two forms of flowering, which is monoecious (where male and female flowers are on one individual) and dioecious (male and female which are on different individuals). Pollination occurs through the medium of water (hydrophyllous pollination).
Cymodocea Rotundata Is one of the seagrass species found in Indonesia. It is not so often found in Indonesia, different from Thalassia hemprichi and Enhalus acoroides which much found in Indonesia. One research in Bali on March 2010, found that Cymodocea Rotundata dominant in Geger Beach(KKP 2011). Beside Bali It also Found In Batam
Local name of Cymodocea Rotundata Is settu. It is One of the dominant species in the intertidal zone and one of the pioneer species, known as mermaid (Dugong) food in Eastern Indonesia.(LIPI, 2010)
Threats: As Global scale This species is widespread and relatively common within its range. Although there are a number of localized threats that are contributing to seagrass decline, there is no current indication of widespread population reduction for this species. It is listed as Least Concern(iucnredlist.org, 2010)