Sustainability status of Karang Jeruk reef ecosystem assessed by RAPFISH.

Karang Jeruk, a coral reef ecosystem located in a marine protected area in Central Java Province, Indonesia, has undergone multiple rehabilitation efforts in the past. Yet, the result has not been comprehensive so far. It is therefore necessary to sustain the reef which requires a planned and synergistic effort by considering several dimensions.

The effect of salinity on the interaction between microplastic polyethylene terephthalate (PET) and microalgae Spirulina sp.

The increasing use of plastic over the last few decades has had an impact of plastic pollution in aquatic ecosystems. Plastic pollutions may be in the form of microplastics either from primary or secondary sources. These microplastics will indirectly affect human health through the food chain.

Interaction between Styrofoam and Microalgae in Brackish Water System.

Styrofoam is a thermoplastic with special characteristics; it is an efficient insulator, is extremely lightweight, absorbs trauma, is bacteria resistant, and is an ideal packaging material, compared to other thermoplastics. The aim of this study was to analyze the interaction between Styrofoam and . The study examined the growth of under Styrofoam stress, changes in Styrofoam functional groups, and their interactions.

Groundwater nutrient inputs into an urbanized tropical estuary system in Indonesia.

Groundwater discharge is known to transport nutrients into estuaries at several locations around the world. However, few studies report groundwater-associated nutrient fluxes from tropical developing regions such as Southeast Asia, even though this area shows the strongest human modifications in the coastal zone worldwide. We investigated groundwater nutrient flux into two streams and estuaries (Awur and Sekumbu Bay) in the urban area of Jepara, Indonesia, and its relation with the land usage surrounding the estuaries.