Karakteristik Makro Algae Berzat Kapur di Perairan Tanjung Sira Lombok-Barat
Abstrak: Coastal waters of
Tanjung Sira has calcareousalgae of the genus Halimeda limestone, Padina,
Amphiroa, Galaxaura, Corallina, Hydrolithon, Mesophyllum, Peysonallia,
Porolithon and Sporolithon. The substrate that used as habitat are sand, coarse sand, rocks and dead coral
rubble. Calcium carbonate contained on calcareous algae fungsioning as adhesive
and encrusting dead coral, shells of mollusks that have decayed and massive
objects in the waters of the sea. The research aims was to determine the growth
characteristics of calcareousalgae in the reef flats, local distribution,
calcium carbonate contain and its contribution as a frame work coastal reef
waters. The research method using transect (Buckland et al., 1993).
Identification of the type of aragonite and calcite according to Cordero (1977).
Analysis of calcium carbonate according to Hillis (1980). The results showed
that the green and brown calcareousalgae found in the reef flats, has thallus
and tubers. Red calcareousalgae grew as encrusting on dead reefs and massif
substrate. There are 16 species of calcareous algae that found in reseach area,
10 species containing aragonite mineral and 6 species containing calcite
mineral. The content of calcium carbonate on each species obtained 100-450 g/m²
consists of aragonite and calcite minerals. Calcareousalgae contribute in the
new formation of coral reef ecosystems.
The other benefit of calcareaousalgae in the coastal waters is an additional
food for herbivorous fish. The content of calcium carbonate on calcareousalgae
species is used in pharmaceutical field as drug ingredients and supplements for
humans.
Penulis: Achmad Kadi
Kode Jurnal: jpbiologidd150863
