Species of coral reefs in Indonesia

1. Acropora cervicornis

Kingdom                    : Animalia

Phylum                      : Cnidaria

Class                         : Anthozoa

Ordo                         : Scleractinia

Family                       : Acroporidae

Genus                        : Acropora

Spesies                      : Acropora cervicornis

Depth: The reef is often found living at a depth of 3-15 meters.
Characteristics: Colonies can lay up to several meters, colony arborescens, composed of cylindrical branches. Koralit tubular. Axial koralit distinguishable.
Color: Light brown.
Similarities: A. prolifera, A. formosa.
Distribution: Aquatic Indonesia, Jamaica, and Kep. Cayman ..
Habitat: Slopes of the middle and upper reef, also Lagun clear waters.

Coral Reef

Coral animals is the major shaper of coral reef ecosystems. Coral animals is very small, called polyps, that form colonies by the thousands, known as coral (coral rock or soft rock). In terms of 'coral reefs', "rock" in question is the coral, a group of animals of the order Scleractinia which produces limestone forming reefs, while reefs are limestone sedimentary rocks in the sea, which also includes live and dead coral reef attached to the limestone rock them. Chalk sedimentation in coral reefs can be derived from algae or from. Physically coral reefs are formed from limestone produced by corals. In Indonesia, all the coral comes from limestone, mostly resulting coral. In the coral reef, coral ecosystems are engineers. For animals that produce lime for her frame, rock is the most important component of the ecosystem. So coral reefs (coral reefs) are tropical marine ecosystems contained in the clear shallow water, warm (greater than 220C), had higher levels of CaCO3 (Calcium Carbonate) high, and a community dominated by various types of hard coral animals.

Kinds Of Seagrass in Indonesian

Tip of the leaf is smooth, and have veins 9-15, in local called settu. One of the dominant species in the intertidal zone,one of pioneer species, known as food dugongs in eastern Indonesia. In english called Round tippes seagrass.

Serrated leaf like an edge, and this kind have leaf bone about 13-17.Same as Cymodocea rotundata in local name is called settu. English called is Toothed seagrass.

Have Rhizome diameter 10 mm with curly hairs, length leaves of 300-1500 mm, width 13-17 mm. In local called Settu pita and in english called Tropical eelgras.

 

Seagrass

Seagrass

Seagrass (seagrass) are flowering plants (angiosperms) that can grow well in shallow environments. All the grass is a plant seeded one (monocots) having roots, rhizomes (rhizome), leaves, flowers and fruit as well as a vascular plant that grows in the ground.So very different from seaweed.Seagrass communities are among the lowest limit of the tidal area up to a certain depth where sunlight can still reach the bottom sea ​​(Sitania in Wimbaningrum, 2003). Seagrass alive and present in mid-intertidal areas to depths of 0.5 to 10 m. However it is very abundant in sublitoral area. The number of species are more numerous in the tropics than in in temperate regions (Barber, 1985). Seagrass is a flowering plant that has been fully adjusting to life under the surface of the water. Seagrass live in waters shallow sandy. Similarly, the grass on land, sea grass also form a vast desert and lush on the sea floor that is still affordable by sunlight (Fahruddin, 2002). Tom (2000) stated that the grass is not real grass, but have leaves, stems and roots that can take nutrients from the substrate. Life cycle with most of angiosperms, but the pollen is distributed by water most compared to the wind and insects. Known for the 45 species of seagrass.Seagrasses have high productivity, the 1000 GC / m / yr.

Seagrass Morfology

Seagrass in waters Indonesia ecosystems commonly found in tidal areas, and coral islands. Seagrass habitat may be mud, sand and coral death. The most important intertidal seagrass cover zone lower and upper subtidal vegetation formed which reaches 7-8 types (mixed vegetation). Vegetation can also be found in a protected area, near the muddy mangrove habitat, and sediment deposition on the rocks or slopes steep with unstable sediment. Seagrasses live on various kinds of sediment types ranging from mud up the sediments which consists of 40% silt and fine mud. Needs a major substrate for the development of seagrass beds is sufficient sediment depth. The role of depth and substrate in stability sediment includes two things: crop protection of ocean currents, and the processing and nutrient intake (Dahuri, 1996)