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All Journal JURNAL ILMIAH PLATAX JGE (Jurnal Geofisika Eksplorasi) Agrikan: Jurnal Agribisnis Perikanan
Wahidin, Nurhalis
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Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Earth & Planetary Sciences Environmental Science

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PEMODELAN TSUNAMI BERDASARKAN AMPLITUDO MAKSIMUM HISTORIS GEMPABUMI DI PESISIR JAILOLO SELATAN Achmad, Rahim; Taib, Suryani; Ningrum, Rohima Wahyu; Suryanto, Wiwit; Aswan, Marwis; Salam, Ramdani; Amelia, Risky Nuri; Hesti, Hesti; Wahidin, Nurhalis
JGE (Jurnal Geofisika Eksplorasi) Vol 9, No 3 (2023)
Publisher : Engineering Faculty Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jge.v9i3.338

Abstract

Pangkalan data paleo-tsunami Indonesia mencatat tanggal 28 Juni 1859 terjadi gempabumi kuat di Laut Maluku dengan skala intesitas (MMI) IX dan menyebabkan tsunami di Teluk Sidangoli dengan ketinggian 10 meter. Laut Maluku memiliki pengaruh yang signifikan terhadap potensi terjadinya bencana tsunami di sekitar wilayah Halmahera termasuk Jailolo Selatan. Melihat adanya potensi bencana tsunami yang besar di wilayah Jailolo Selatan, maka perlu dilakukan strategi perencanaan mitigasi bencana tsunami yakni dengan pemodelan bahaya tsunami. Pemodelan bahaya tsunami dilakukan untuk mengetahui nilai amplitudo maksimum (Run-up) gelombang tsunami dengan menggunakan perhitungan numerik dari sofware Cornell Multi-Grid Coupled Tsunami Model (COMCOT) versi 1.7, nilai jarak maksimum yang dapat ditembus oleh air pasang ke daratan pada pantai yang datar (inundasi), dan nilai sudut kemiringan lereng (slope) dari pengukuran fotogrametri udara Unmanned Aerial Vehicle (UAV). Hasil Pemetaaan bahaya tsunami menghasilkan nilai amplitudo maksimum (Run-up) setinggi 4 meter dan wilayah yang terdampak akibat gelombang tsunami berjarak (inundasi) sekitar 310 meter dari garis pantai. Nilai rata-rata sudut kemiringan lereng (slope) di pesisir Jailolo Selatan adalah 22,90 dan termasuk lereng curam. Dan slope tipe curam cenderung menyebabkan peningkatan tinggi gelombang saat tsunami mendekati pantai, sehingga gelombang dapat menjadi lebih tinggi.
Evaluation of Utilization Levels and User Satisfaction of Cold Chain and Solar Packed Facilities Fisherman Dealers Goto Fish Landing Base, Tidore Islands City Iksan, Kusdi Hi; Abd. Latif, Hamid; Wahidin, Nurhalis; Karman, Amirul; Taeran, Imran; Djamhur, Martini
Agrikan Jurnal Agribisnis Perikanan Vol 14 No 2 (2021): Agrikan: Jurnal Agribisnis Perikanan
Publisher : Fakultas Pertanian, Universitas Muhammadiyah Maluku Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1156.492 KB) | DOI: 10.52046/agrikan.v14i2.892

Abstract

Based on initial information from fishermen and fish buyers that the fulfillment of the needs for ice blocks and fuel oil for fishermen to go to sea at the Goto Fish Landing Base (PPI) is experiencing problems. The port has not been able to meet the demand for ice blocks and fuel oil (BBM) so fishermen have to buy from outside the port. In order to optimally serve the needs of users at PPI Goto City, Tidore Islands, it is necessary to improve cold chain facilities and SPDN supported by scientific studies on the status of facility utilization and user satisfaction levels. This study aims to analyze the level of utilization and satisfaction of cold chain facilities and SPDN users at PPI Goto, Tidore Islands City. The research was conducted at PPI Goto City, Tidore Islands, for 3 months, from February to April. Field data collection for 1 week, on March 2-9, 2021. The research uses the case study method. The results showed that the ice factory facilities could not serve the needs of fishermen because they were in a damaged condition as well as the SPDN facilities could not serve the needs of fishermen because there was no fuel supply from Pertamina. All stakeholders (masters, fishermen, and entrepreneurs who buy fish) expressed dissatisfaction with the service of ice factory facilities and SPDN, while for ABF and cold storage facilities, respondents stated that they were very satisfied.
Determination Analysis Of Coastal and Small Islands Conservation Area Jailolo Bay Using The Marxan Method Ahmad, Aditiyawan; Wahidin, Nurhalis
Agrikan Jurnal Agribisnis Perikanan Vol 15 No 2 (2022): Agrikan: Jurnal Agribisnis Perikanan
Publisher : Fakultas Pertanian, Universitas Muhammadiyah Maluku Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52046/agrikan.v15i2.1268

Abstract

Jailolo Bay conditions for utilization activities, in the long term can cause conflicts of use, therefore it is necessary to regulate the utilization according to its designation with a zoning approach so as to prevent conflicts that will occur. The purpose of this study is to determine the zoning of the use of Jailolo Bay as a coastal conservation area and small islands using the Marxan method. Based on the analysis of the factors that support the determination of Coastal and Small Islands Conservation Areas in the waters of Jailolo Bay, the main recommendation is Coastal Park and the alternative recommendation is Coastal Sanctuary. The area of the coastal and small islands conservation area of Jailolo Bay is 1,166.46 ha, consisting of a core zone of 23.50 ha, a utilization zone of 43.75 ha, a sustainable fisheries zone of 1,084.86 ha, and other zones of 14.35 ha.
Habitat Characteristics of Endemic Species of Walking Shark (Hemiscyllium Halmahera) for Proposed Protection Areas on Ternate Island, North Maluku Galitan, Zulfikar; Wahidin, Nurhalis; Irham, Irham
Agrikan Jurnal Agribisnis Perikanan Vol 16 No 2 (2023): Agrikan: Jurnal Agribisnis Perikanan
Publisher : Fakultas Pertanian, Universitas Muhammadiyah Maluku Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52046/agrikan.v16i2.1787

Abstract

The walking shark (Hemiscyllium halmahera) is one of the endemic species in North Maluku and it can be found in the waters of PulauTernate. There is less Information about walking sharks, so more research is needed about this species. Moreoverthe information related to habitat conditions and priority areas for shark protection is also limited especially on the west coast of Ternate Island, so more research is also needed for this species. This study aims to describe the characteristics of habitat distribution and identify areas for priority protection for shark species (Hemiscyllium halmahera) in the sea water of Ternate island. Related to these conditions, it is required to forma proposed priority area protection scheme using Marxan software.In a Marxan analysis conservation features and cost features are needed to make a priority area scheme. The results of the Marxan analysis indicate that 20% of scenario is very priority with an area of 66.3 ha, a scenario of 30% with an area of 65.6 ha, and a scenario of 50% with an area of 71.0 ha from the total area of 421.4 ha. Scenario 20% is the most suitable location to serve as a proposed marine protected area, especially the Halmahera walking shark so that in the future it can be expected to be a priority marine protection area that can grow optimally.
Study of the Diversity of Coral Reef Types and Conditions on Tidore Island, Tidore City Archipelago Umanahu, Zulkarnain Riswan; Wahidin, Nurhalis; Ahmad, Adityawan
Agrikan Jurnal Agribisnis Perikanan Vol 16 No 2 (2023): Agrikan: Jurnal Agribisnis Perikanan
Publisher : Fakultas Pertanian, Universitas Muhammadiyah Maluku Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52046/agrikan.v16i2.1888

Abstract

This study aims to determine the species diversity and condition of coral reefs on Tidore Island, Tidore Islands City. This research was conducted for two months from March to April 2023. The data collection method used was Underwater Photo Transect (UPT) conducted at five observation stations with a transect length of 20 meters. The results of research at 5 observation stations showed the value of coral reef species diversity in Tidore Island ranged from 0.33 - 1.54. The diversity category is classified as low and moderate, the diversity of coral species with moderate categories is found at station 4 with the number of species found as many as 40 species and the lowest coral species diversity at station 2 with the number of coral species is 13 species. The percentage of coral reef cover on Tidore Island ranged from 18.25 - 58.76% with poor to good categories. Coral reef cover with poor category is found in station 1 and good category is found in station 2, 3, 4 and 5.
Evaluation Feasibility of the Yellowfin Tuna Hand Line Fishery Business in Jambula District, Ternate City Saifullah, Dadang; Irham, Irham; Muksin, Darmiyati; Karman, Amirul; Wahidin, Nurhalis; Ahmad, Adityawan; Aris, Muhammad
Agrikan Jurnal Agribisnis Perikanan Vol 17 No 1 (2024): Agrikan: Jurnal Agribisnis Perikanan
Publisher : Fakultas Pertanian, Universitas Muhammadiyah Maluku Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52046/agrikan.v17i1.2034

Abstract

The yellowfin tuna hand line fishing business in Jambula Village, Ternate City is an activity that aims to exploit yellowfin tuna fish resources with the aim of obtaining continuous profits, therefore it is necessary to carry out scientific studies related to evaluating the feasibility of the yellowfin tuna long-line fishing business in Jambula City Village. Ternate. The aim of this research is to analyze the feasibility of the yellowfin tuna hand-line fishing business in Jambula Village, Ternate City. The research was carried out in Jambula Village, Ternate City from June to November 2003. The research method used was a survey method. Data on investment costs, fixed and variable operations, fish prices, and the average number of catches per trip were obtained through interviews with owners of yellowfin tuna hand-line fishing businesses because generally the fishermen who catch them are the business owners. Considering that the number of yellowfin tuna hand-line fishermen in Jambula Subdistrict is 30, a sample of 6 (20%) fishermen respondents was taken as a representative of yellowfin tuna hand-line fishermen in that sub-district.The results of the research show that the yellowfin tuna ulura fishing business in Jambula Village, Ternate City is worth continuing and developing, with the resulting economic feasibility indicator being an average profit of IDR. 45,208,333.33/year, average net present value Rp. 254,476,531.14, average value of net benefit cost ratio 3.83, average value of internal rate of return 77.83%, average value of break event point Rp. 205,899,999.94, and the average payback period value is 1.66 years.
Land Suitability Analysis For Brackishwater Aquaculture Development In In Morotai Island District Rusdi; Wahidin, Nurhalis; Muhammad Aris; Taufiq Abdulah
Jurnal Ilmiah Platax Vol. 12 No. 2 (2024): ISSUE JULY-DECEMBER 2024
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/jip.v12i2.56268

Abstract

This study aims to analyze the land suitability in the coastal area of Pulau Morotai Regency for whiteleg shrimp. The research was conducted in Raja Village. The observed parameters include infrastructure data such as distance to the market, distance to the highway, and distance to the hatchery. Water quality parameters are water temperature, salinity, dissolved oxygen (DO), water pH, total ammonia nitrogen (TAN), nitrite, nitrate, phosphate, and plankton abundance. Meanwhile, the observed soil quality parameter is soil pH. Land suitability analysis was conducted using geographic information systems and drones. The results show that the distances to the market, highway, and hatchery are >12 km, >5 km, and >12 km, respectively. Water temperature ranges from 15.40-27.10 ℃, salinity is 0 ppt, DO ranges from 1.00-2.20 mg L-1, water pH ranges from 6.00-7.00, TAN ranges from 0.001-0.043 mg L-1, nitrite ranges from 0.017-0.070 mg L-1, nitrate ranges from 0.005-0.045 mg L-1, phosphate ranges from 0.006-0.048 mg L-1, and plankton abundance is 2.3×109 cells L-1. Meanwhile, soil pH ranges from 4.00-7.00. The analysis indicates that the coastal area of Raja has 1000 Ha of marginally suitable land (S3) and 1000 Ha of unsuitable land (N) for brackishwater aquaculture development. Keywords: Brackishwater aquaculture; Coastal area; Pulau Morotai Regency; Whiteleg shrimp. Abstrak Penelitian ini bertujuan menganalisis kesesuaian lahan di pesisir Kabupaten Pulau Morotai untuk budidaya udang vaname. Penelitian dilakukan di Desa Raja, Kabupaten Pulau Morotai. Parameter yang diamati meliputi data infrastruktur yang diamati adalah jarak ke pasar, jarak ke jalan raya dan jarak ke hatchery. Data parameter kualitas air yang diamati adalah suhu perairan, salinitas, oksigen terlarut (DO), pH air, total ammonia nitrogen (TAN), nitrit, nitrat, fosfat dan kelimpahan plankton. Sementara data parameter kualitas tanah yang diamati adalah pH tanah. Analisis kesesuaian lahan dilakukan menggunakan sistem informasi geografis (GIS) dan drone. Hasil penelitian menunjukkan bahwa jarak ke pasar, jalan raya, dan hatchery masing-masing >12 km, >5 km, dan >12 km. Suhu air 15,40 – 27,10 ℃, salinitas 0 ppt, DO 1,00 – 2,20 mg L-1, pH air 6,00 – 7,00, TAN 0,001 – 0,043 mg L-1, nitrit 0,017 – 0,070 mg L-1, nitrat 0,005 – 0,045 mg L-1, fosfat 0,006 – 0,048 mg L-1, dan kelimpahan plankton 2,3 × 109 Sel L-1. Sementara pH tanah 4,00 – 7,00. Analisis menunjukkan kawasan pesisir Raja memiliki 1000 Ha lahan yang cukup sesuai (S3) dan 1000 Ha yang tidak sesuai (N) untuk pengembangan budidaya air payau. Kata kunci: Budidaya air payau; Kabupaten Pulau Morotai; Kawasan pesisir; Udang vaname.
Co-Authors Abd. Latif, Hamid Achmad, Rahim Adityawan Ahmad Ahmad, Aditiyawan Amelia, Risky Nuri Aris, Muhammad Aswan, Marwis Galitan, Zulfikar Hesti Hesti Iksan, Kusdi Hi Irham Irham Karman, Amirul Martini Djamhur, Martini Muhammad Aris Muksin, Darmiyati Ramdani Salam Rohima Wahyu Ningrum, Rohima Wahyu Rusdi Saifullah, Dadang Suryanto, Wiwit Taeran, Imran Taib, Suryani Taufiq Abdulah Umanahu, Zulkarnain Riswan