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All Journal Journal of Geoscience, Engineering, Environment, and Technology Indonesian Fisheries Research Journal Jurnal Kelautan Nasional Jurnal Segara Jurnal Geologi Kelautan: Media Hasil Penelitian Geologi Kelautan
Wisnu Arya Gemilang
Research Institute for Coastal Resources and Vulnerability
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Earth & Planetary Sciences Engineering Environmental Science Materials Science & Nanotechnology Physics

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Journal : Jurnal Segara

 1 
Assessing Mandeh Region as the Center of Marine Ecotourism in West Sumatra Province, Indonesia: Mass Tourism Issue and Vulnerability Aspects Ulung Jantama Wisha; Try Al Tanto; Nia Naelul Hasanah Ridwan; Guntur Adhi Rahmawan; Ruzana Dhiauddin; Koko Ondara; Wisnu Arya Gemilang
Jurnal Segara Vol 17, No 2 (2021): Agustus
Publisher : Politeknik Kelautan dan Perikanan Dumai

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (712.702 KB) | DOI: 10.15578/segara.v17i2.9459

Abstract

Nowadays, Mandeh Region has developed significantly as the center of marine ecotourism in West Sumatra Province. Many local and international tourists were visiting this site. Due to those conditions, many threats emerged, such as mass tourism evoking damages and pollutions. This study aimed to examine the feasibility of the Mandeh Region for tourism activity and identify the impacts of mass tourism. A direct survey has been conducted. We assessed water quality, accessibility, and social conflicts using a scoring method. A modified matrix categorizing some parameters as the underlying data for marine tourism sustainability was used. We also developed Smartline and CVI model to assess the vulnerability level along Mandeh coastal bay. Local zonation was recommended to reduce more environmental damages. We examined the feasibility of the Mandeh region as a place for ecotourism that reached 71.12 %, indicating this area is sufficiently feasible. The absence of local regulations before the Mandeh region was established as the center of marine ecotourism resulted in mass tourism phenomena that elevated marine litter accumulation. Moreover, the development of many resorts near the coast has recently played a role in triggering pollution and damage. Advanced regulation and management are necessary to diminish negative impacts on both the environment and society.
Pengaruh Aktifitas Seafloor Fumaroles Terhadap Sebaran Suhu Permukaan dan Kondisi Lingkungan Perairan di Teluk Pria Laot, Pulau Weh Wisnu Arya Gemilang; Ulung Jantama Wisha
Jurnal Segara Vol 15, No 1 (2019): April
Publisher : Pusat Riset Kelautan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1479.942 KB) | DOI: 10.15578/segara.v15i1.6776

Abstract

Aktifitas vulkanik bawah laut yang ada di kawasan perairan Pulau Weh ditunjukkan dalam bentuk fumaroles, solfatara, lahan panas, mata air panas, kolam lumpur panas dan alterasi sekitar lubang kepundah dasar laut dan pantai. Manifestasi hydrothermal berupa semburan gas vulkanik dan keluaran mata air panas bawah laut mendominasi pada perairan Pulau Weh, terutama pada Teluk Pria Laot. Penelitian ini dilakukan terhadap karakteristik Suhu Permukaan Laut (SPL) menggunakan pendekatan data citra satelit Aqua MODIS dapat memberikan gambaran pengaruh aktifitas mata air panas bawah laut terhadap SPL. SPL di sekitar lokasi keluaran airpanas bawah laut menunjukkan nilai tingggi dibandingkan sekitarnya. Rata-rata SPL pada musim barat 28,94°C, peralihan I 30,52°C, monsun Timur 30,06°C, dan pada musim peralihan II 27,93°C.  Musim timur hingga peralihan II memperlihatkan anomali rendahnya suhu sekitar keluaran mata airpanas dibandingkan dengan sekitarnya, yang dipengaruhi oleh faktor meningkatnya curah hujan dan fenomena Transpor Ekman. Fluktuasi SPL pada area sekitar aktifitas seafloor fumaroles mengikuti pola perubahan elevasi pasang-surut. Aktifitas seafloor fumaroles memberikan dampak perubahan karakteristik nilai salinitas, pH serta suhu sekitar Teluk, sehingga banyak biota laut yang tidak dapat hidup di sekitar fumaroles tersebut.
Modeling the Possible Impacts of Dredging Activities in the Fishery Port of Carocok, Pesisir Selatan Regency, West Sumatra: Hydro-Geo-Oceanographical Approaches Wisnu Arya Gemilang; Ulung Jantama Wisha; Guntur Adhi Rahmawan; Nia Naenul Hasanah Ridwan; Ilham Ilham
Jurnal Segara Vol 18, No 2 (2022): August
Publisher : Politeknik Kelautan dan Perikanan Dumai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15578/segara.v18i2.11426

Abstract

Carocok Fishery Port (PPP Carocok) is a supporting facility for capturing fishery in the Pesisir Selatan Regency. Thus, bathymetry monitoring the shipping lane and the port pool dredging is crucial to bolster fishery activities. This study aims to model the possible impact when massive dredging is applied based on geological and oceanographical approaches. The bottom sediment sampled in the field was analyzed using a granulometric method. A direct bathymetry survey was also done using a single beam echosounder and tide gauge deployment. Hydrodynamic modeling was employed to predict the changes in water motion characteristics if dredging is applied—a scenario applying bathymetry profile after dredging was applied in the simulation. The bathymetry contour within Carocok Bay was relatively declivous, categorized as shallow water with a depth ranging from -2.5 to -15 m. The sediment type in the study area consisted of sand, sandy clay, clayey sand, silty sand, and mixed textures. The tidal current motions (ranging from 0 to 0.053 m/s) are the primary factor transporting the water mass within the port pool, which also impacts sediment transport in the semi-enclosed water area. The sediment characteristics showed that the sediment is deposited in low-energy conditions. It is modeled that the dredging plan in the PPP Carocok will not cause any significant changes, including bathymetry alteration and water environment. Therefore, the port pool is still appropriate to espouse fishery activities in the Carocok Port without dredging.
Co-Authors Guntur Adhi Rahmawan Ilham Ilham Koko Ondara Nia Naelul Hasanah Ridwan Nia Naenul Hasanah Ridwan Ruzana Dhiauddin Try Al Tanto UlUNG JANTAMA WISHA Ulung Jantama Wisha Ulung Jantama Wisha Ulung Jantama Wisha Ulung Jantama Wisha Z Tahir