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August Daulat
Pusat Riset Kelautan, Badan Riset dan Sumber Daya Manusia Kelautan dan Perikanan, Kemeneterian Kelautan Perikanan . Komplek Bina Samudera Jl. Pasir Putih II Lantai 4, ancol timur, Jakarta Utara 14430
Earth & Planetary Sciences Environmental Science Materials Science & Nanotechnology

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Assessment of Mangrove Ecosystem Potency and Its Utilization in Dompu Regency Coastal Waters, West Nusa Tenggara Province Using Satellite Imagery Application Yulius Yulius; Syahrial Nur Amri; August Daulat; Sari Indriani Putri
Jurnal Segara Vol 15, No 2 (2019): Agustus
Publisher : Pusat Riset Kelautan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1016.562 KB) | DOI: 10.15578/segara.v15i2.7461

Abstract

Mangrove ecosystem forests are tropical coastal vegetation communities, which has the ability to grow in coastal area with tidal and muddy environment. Several functions of mangrove ecosystem forest such as ecological functions can be used for coastal protection, trapping sediment and strengthen the coastal ecosystems. Coastal waters in Dompu Regency, West Nusa Tenggara have natural mangrove ecosystem with a huge potency and advantages to the region. This study aimed to understand the condition of mangrove ecosystem based on satellite image analysis of Landsat 8 Operational Land Imager (OLI) in 2014 and assess the potency, information related to the utilization by community. Data collection in this study were combined from satellite imagery interpretation with interview and questionnaires. The results showed that the mangrove forest extent in Dompu Regency Coastal Waters were about 90,631 ha with uniformity index 0.68 (medium uniformity). Two mangrove species were found in the region namely Rhizopora stylosa and Rhizopora apiculata and used by the community for several purposes such as firewood, natural coastal protection from tidal, waves and abrasion, also for crabs and fish spawning ground.
The Existence of Ornamental Coral in Different Live Coral Coverage Condition in Saleh Bay, West Nusa Tenggara Ofri Johan; Yulius Yulius; Hadiwijaya Lesmana Salim; Idil Ardi; Muhammad Abrar; August Daulat
Jurnal Segara Vol 15, No 2 (2019): Agustus
Publisher : Pusat Riset Kelautan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (674.468 KB) | DOI: 10.15578/segara.v15i2.6592

Abstract

Ornamental coral is one of the trading commodities targets with high demand in all of the world because of its color and unique shape. Various types of ornamental corals are usually found in a specific area and out of reach, where one of them situated in water depth that it so difficult to find. West Nusa Tenggara Province is known as one of the ornamental coral suppliers that has not been touched much by research related to the existence of ornamental coral natural resources. This study aims to obtain preliminary data on the existence of ornamental coral, especially in Saleh Bay waters. Observations carried out from 6 to 11 May 2015 at 6 locations, determined based on distance from the mainland with respective representation, which divided into categories such as near, medium and far using the straight-line transect methods for coral reefs condition, while belt transect methods used for ornamental corals assessment. The results showed the health of coral reefs in good condition with the cover above 50% at all stations except station 4 (medium category), where Acropora coral species dominated at stations 5 and 6 (distant category). The bottom substrate dominated by coral fragments and dead corals with algae (DCA), which are found 28 genera of ornamental corals and considered as trade commodities such as Euphyllia glabrescens, Euphyllia cristata, Euphyllia ancora, Echinophora sp, Gonioporasp, Lobophyllia sp, Physogyra sp, Merulina sp, and Turbinaria sp. The research location can be used as a permanent study area for ornamental coral focus subject and as an indicator for sustainable ornamental coral management in the region.
Co-Authors Hadiwijaya Lesmana Salim Idil Ardi Muhammad Abrar Ofri Johan Sari Indriani Putri Syahrial Nur Amri Yulius Yulius