I never targeted Sumba as a must destination in 2017. Luckily, it happened :).
Welcome to one of the Lesser Sumba Islands.
Some marine organisms in Sumba.
- Halimeda sp, well known as green macroalgae, are important producers of calcium carbonate (CaCo3) (Adey et al., 2007). Enochs et al., (2015) reported the increase of carbon-dioxide that we see today, will positively increase the abundance of Halimeda. This is due to the fact that Halimeda has a higher tolerance to the increase of CO2 (Vogel et al., 2015). The interaction between CaCo3 and water (H2O) resulting in carbonic acid. This mean, our ocean becomes more acid when Halimeda is abundance. Subsequently, this will negatively impact on the other living organisms like coral reefs. PRODUCE LESS CARBON DIOXIDE PEOPLE!!!
Nudibranch, Phyllidia varicosa (Lamarck, 1801), a dorid nudibranch. Live in most parts of the Indo-Pacific. It has been reported that only three studies report bioactive compounds of heterobranchs in Indonesia. P.varicosa has five bioactive sesquiterpenes or compounds. These compounds serve as defence chemical against predators (Fisch et al., 2017). Little that we know, each thing has each own system.
Tubeworms, marine invertebrate which belongs to the family of polychaete annelid worms. Callaway (2006) found that the existence of tube-worms can modify the community structure because they provide a settlement surface for larvae and other small organisms. Tube-worms, worms in the tube :). They just amazing 🙂
Sarcophyton sp. Unlike the other corals, Sarcophyton does not produce calcium carbonate (CaCO3). They are a hardy and easy to maintain in the reef aquarium. If you want one, it costs around $50 (I BELIEVE TO SEE THEM IN NATURAL HABITAT IS BETTER THAN IN YOUR AQUARIUM). However, you may find them (and have one), because they are cultivated for its bacterial symbiont. For instance in Awur Bay, Jepara. Besides benefit economically, this coral also can be utilized medically. Symbiont with bacterial genera Pseuodoalteromonas and Virgibacillus, Sarcopython has medical potential as antioxidant compounds (Kusmita et al., 2017).