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All Journal Jurnal Ilmu dan Teknologi Kelautan Tropis ILMU KELAUTAN: Indonesian Journal of Marine Sciences Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology Jurnal Pasir Laut Jurnal Perikanan dan Kelautan Management of Aquatic Resources Journal (Maquares) Journal of Aquaculture Management and Technology Journal of Fisheries Resources Utilization Management and Technology International Journal of Marine and Aquatic Resource Conservation and Co-existence Jurnal Kelautan Nasional JURNAL METEOROLOGI DAN GEOFISIKA

Agus Hartoko

Coastal Resources Management, Department Of Aquatic Resources, Faculty Of Fisheries And Marine Science Diponegoro University, Indonesia

Author-ID : 276986

Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Computer Science & IT Decision Sciences, Operations Research & Management Earth & Planetary Sciences Education Energy Environmental Science Immunology & microbiology Library & Information Science Physics Social Sciences Other

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ANALISIS DATA BATIMETRI LAPANGAN DAN CITRA LANDSAT 8 OLI DI PERAIRAN SELAT LEPAR KABUPATEN BANGKA SELATAN (ANALYSIS BATIMETRY FIELD AND BATIMETRY CITRA LANDSAT 8 OLI IN LEPAR CURRENT REGENCY OF SOUTH BANGKA) Dewi Sartika; Agus Hartoko; Kurniawan Kurniawan
Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology Vol 13, No 2 (2018): SAINTEK PERIKANAN
Publisher : Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro

Selat Lepar merupakan perairan dengan batas antara kawasan pesisir Sadai dengan kawasan Pulau Lepar Kabupaten Bangka Selatan. Informasi perairan kedalaman (batimetri) merupakan salah satu hal penting dalam menentukan wilayah alur jalannya pelayaran dalam perencanaan kawasan industri Sadai. Penelitian ini bertujuan untuk menganalisis data batimetri lapangan dan citra Satelit Landsat 8 dan membuat dalam bentuk peta 3D di perairan Selat Lepar Kabupaten Bangka Selatan. Penelitian ini dilaksanakan pada bulan Oktober hingga April di perairan Selat Lepar Kabupaten Bangka Selatan. Metode yang telah digunakan adalah metode akustik dengan melakukan pengambilan data batimetri di lapangan menggunakan singlebeam echosounder kemudian data lapangan dibandingkan dengan metode pengolahan citra landsat 8 menggunakan algoritma Satellite Derived Bathymetry (SDB). Algoritma Satellite Derived Bathymetry (SDB) menggunakan tiga pendekatan yaitu rationing, thresholding dan mean value Kanal 5 dan Kanal 2 citra satelit Landsat 8. Pengukuran lapangan nilai batimetri perairan Selat Lepar Kabupaten Bangka Selatan berkisar antara 0.8 – 19 m. Model pendekatan thresholding memiliki hubungan yang paling baik dengan persamaan regresi polinomial y = -235,3(B2-B5)2 + 126,2(B2-B5) - 13.35 dan y = -235,3(B5-B2)2 – 126,2(B5-B2) – 13,35, nilai koefisien determinasi tertinggi R2= 0,849. Peta layout batimetri perairan Selat Lepar Kabupaten Bangka Selatan dalam bentuk 3D menghasilkan kedalaman 0-19 m dengan bentuk dasar perairan dangkal, landai dan dangkal. Lepar Strait is a borderline area between Sadai coastal area with Lepar Island area of South Bangka Regency. Basic information of bathymetry is one of important things in determining the area of the shipping path in the planning of the Sadai industrial estate. This study aims to analyze the bathymetry and Landsat 8 satellite data and create it in 3D map form in the Lepar Strait area of South Bangka Regency. This research was conducted from October to April in Lepar Strait waters in South Bangka Regency. The method that has been used is acoustic method by collecting data using singlebeam echosounder and data then proceed with the method of image processing of landsat 8 using Satellite Derived Bathymetry (SDB) algorithm. The Satellite Algorithm Derived Bathymetry (SDB) used three approaches namely rationing, thresholding and the mean value of Kanal 5 and Kanal 2 Landsat 8 satellite. The measurement of bathymetry Lepar Strait of South Bangka Regency between 0.8 to 16 m. The thresholding approach model has the best relation with the polynomial regression equation y = -235.3(B2-B5)2 + 126.2 (B2-B5) - 13.35 and y = -235.3 (B5-B2) 2 - 126.2 (B5-B2) –13.35, coefficient value of determination main R2 = 0.849. Map of bathymetry layers Lepar Strait of South Bangka Regency in the form of 3D produces a depth of 0-19 m with a shallow, slope and shallow base.

Toward a New Paradigm of Ecosystem and Endemic Organism based on Spatial Zonation for Taka Bonerate Marine Protected Area Agus Hartoko; I. Kumalasari; Sutrisno Anggoro
International Journal of Marine and Aquatic Resource Conservation and Co-existence 2014: IJMARCC Volume 1 Issue 1 Year 2014
Publisher : International Journal of Marine and Aquatic Resource Conservation and Co-existence

Most of present approach by authorities in designing for any conservation programs was mainly achieving target based on the width of area and not for the endemic organisms in each area. The old zonation method used was usually not based upon an ecological delineation but mostly using the island border physically and without a rehabilitation zone. In the conservation zone such as in Taka Bonerate marine park there could be a limited use zone based on the traditional use and not an intensive use activities. The paper develop a new ecosystem and endemic organism based spatial scoring to built a new spatial zonation model which is specially dedicated for any conservation zone or a marine parks. Which would be used for a management plan and further action plan. A spatial based approach analysis with a reliable detail and adequate accuracy was needed as a guide in the zonation processes for the management of coastal or marine protected area. The spatial modeling was a combination of satellite and field data analysis. This spatial modeling analysis was also called as Cell Based Modeling based on raster/spatial data and ‘spatial-scoring’ method with emphasized on the specific ecosystem and endemic organism valuation and weight approach. The new paradigm on the “specific ecosystem and endemic organism based spatial-scoring for a new spatial model” and targeted existing knowledge for a beyond ‘the usual-goals’ for Marine Protected Area (MPA). In this case is preserving and conserving “marine living fossils”: Nautilus pompilus for Taka Bonerate as well as for other cases of Latimeria menadoensis in north Sulawesi waters and Limulus.sp in Java and Kangean seas, should be designated as a “new concept of MPA-Plus”. Considering the important of deep sea vulnerable reef and atolls and sand-dune (‘bungin’) ecosystem for a protected reef-fishes: napoleon wrasse (Cheilinus undulatus), and flying fish Cypsilurus.sp and others. Key words : Endemic, spatial-scoring, MPA, Taka Bonerate

Analisis Kelimpahan Fitoplankton di Perairan Alang-Alang Taman Nasional Karimunjawa Nadhea O. Rahmawati; Agus Hartoko; Nurul Latifah
Jurnal Kelautan Nasional Vol 16, No 2 (2021): AGUSTUS
Publisher : Pusat Riset Kelautan

Tujuan dari penelitian ini adalah untuk mengetahui kelimpahan fitoplankton pada ekosistem lamun dan lepas pantai perairan Alang-alang Karimunjawa serta faktor-faktor yang mempengaruhi. Penelitian ini dilaksanakan di Perairan Alang-alang Karimunjawa Desember 2019. Metode Penelitian ini menggunakan metode survei dengan pendekatan kuantitatif. Pengambilan sampel dilakukan di 10 stasiun menggunakan metode purposive sampling. Analisis data sistem karbonat menggunakan analisis komponen utama (PCA). Hasil dari penelitian ini menunjukkan bahwa kelimpahan fitoplankton tertinggi pada Perairan pantai Alang-alang Karimunjawa bulan Desember 2019 diperoleh pada ekosistem lamun dengan kisaran rata-rata sebesar 380 individu/L, sedangkan pada perairan lepas pantai hanya berkisar 200 individu/liter. Faktor-faktor yang paling mempengaruhi kelimpahan fitoplankton tersebut yaitu klorofil-a dengan nilai R2 sebesar 0,96 dan r sebesar 0,98, variabel lain yang memiliki hubungan kuat dengan kelimpahan fitoplankton berdasarkan analisis PCA (Principal Componen Analysis) yaitu nitrat dan silikat.

Bioconcentration Lead (Pb) Green Mussel (Perna viridis) in Semarang Bay Sonny Lahati; Agus Hartoko; Haeruddin Haeruddin
Jurnal Perikanan dan Kelautan Vol 27, No 2 (2022): June 2022
Publisher : Fakultas Perikanan dan Kelautan Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jpk.27.2.151-157

The coastal waters of Semarang Bay have been polluted by heavy metal lead (Pb). The research was conducted from September 2015 to March 2016 with 3 stations at the Tambaklorok green mussel cultivation location. Analysis of the concentration of heavy metal Pb using the AAS (Atomic Absorption Spectrophotometer) method. Data processing using SPSS and Excel. The results showed that the average concentration of heavy metal Pb in the air ranged from 0.51 to 0.76 mg/L. The average concentration of heavy metal Pb in three observations obtained an average concentration of Pb between 4.975-20.43 mg/kg. Green mussels taken in the waters were sorted and separated according to the length of the shell and weighed 1 kg each according to the length of the shell. Small (2-3 cm), medium (3-4 cm) and large shells with long shells (5-6 cm). The results of the measurement of the concentration of heavy metal Pb in P. viridis showed that the average green mussel shell size 4-5 cm at the location of station III had the lowest concentration of heavy metal Pb at 0.24 mg/kg. Meanwhile, the highest average concentration of Pb in P. viridis was found at station I at 0.89 mg/kg with a shell length of 2-3 cm. The correlation equation between shell length and Pb concentration is Y= - 0.131 + 1.13 X. Standard error of the Estimate (SEE) is 0.19. While the standard deviation of 0.20 means that the predictor variable (water) to predict the dependent variable (shellfish) is feasible because SEE is greater than the standard deviation. The average value of the Bioconcentration Factor (BCF) of green mussels is smaller than that of medium-sized green mussels and large green mussels. Green mussels can be consumed by someone if the body weight is 60 kg, then as much as 5.8 kg in a week because it contains Pb

SIMULASI ROB DI SEMARANG MENGGUNAKAN MODEL HIDRODINAMIKA 2D Muhammad Najib Habibie; Agus Hartoko; Nining Sari Ningsih; Muhammad Helmi; Siswanto Siswanto; Roni Kurniawan; Andri Ramdhani; Rahayu Sapta S. Sudewi
Jurnal Meteorologi dan Geofisika Vol 13, No 2 (2012)
Publisher : Pusat Penelitian dan Pengembangan BMKG

Semarang merupakan salah satu kawasan yang sering mengalami genangan air pasang (rob) yang dipengaruhi oleh beberapa faktor yaitu: faktor meteorologi, laju penurunan tanah dan faktor astronomi (pasang surut). Penelitian ini bertujuan untuk mengetahui kehandalan model dan peran faktor meteorologi pada simulasi genangan rob di wilayah Semarang. Metode yang digunakan adalah analisa kenaikan tinggi muka laut beserta penurunan muka tanah, simulasi model dengan Hidrodinamika 2D serta verifikasi menggunakan data citra satelit IKONOS untuk mengetahui wilayah genangan. Dari simulasi model hidrodinamika 2D pada tanggal 13 Juni 2009 - bertepatan dengan siklon tropis Linfa di Laut Cina Selatan - yang memperhitungkan komponen pasang surut, tekanan dan angin diperoleh hasil yang menunjukkan wilayah Semarang Barat mengalami pengurangan batas pantai sejauh 221 m dan wilayah Pelabuhan sebesar 270 m dibanding jika komponen pasang surut saja yang diperhitungkan. Selain itu tinggi muka laut juga meningkat sebesar 10 cm ketika memasukkan komponen kecepatan angin dan tekanan udara permukaan. Hasil luaran model ketika dibandingkan dengan citra satelit IKONOS menunjukkan kemiripan yang berarti model telah merepresentasikan kondisi sebenarnya. Semarang is one of the area that experienced by inundation controlled by meteorological factor, subsidence and astronomical tide. The purpose of this research is to investigate the model performance and the role of meteorological factor on inundation area by using the 2D Hydrodynamic model. The simulation outputs are verified by IKONOS satellite data. By using the air pressure and wind data as the atmospheric forcings on June 9, 2009 coincides with tropical cyclone Linfa on South China Sea, the output of the model shows that the inundation is expanded up to 221 m in the West Semarang and 270 in the Semarang Harbor, compare to the output just using the tidal data only. Modeled-results also show that the sea level increase 10 cm. The output of 2D Hydrodynamic model have same pattern with IKONOS satellite image when both of them compared, so the model simulation represented actual condition on inundation field.

Dampak Siklon Tropis Quang Terhadap Kondisi Oseanografi Perairan Selatan Jawa Yosafat Donni Haryanto; Ahmad Fadlan; Agus Hartoko; Sutrisno Anggoro; Muhammad Zainuri
Jurnal Meteorologi dan Geofisika Vol 18, No 1 (2017)
Publisher : Pusat Penelitian dan Pengembangan BMKG

Benua maritim Indonesia merupakan kawasan kepulauan yang diapit oleh dua samudera dan dua benua yang menjadikannya sebagai pusat dari aktivitas sirkulasi atmosfer dan sirkulasi laut global. Dalam hubungan antara lautan dan atmosfer, interkasi yang terjadi diantara keduanya memiliki peranan penting dalam menentukan dinamika dan kondisi baik pada wilayah lautan maupun lingkungan atmosfer. Pada tanggal 28 April 2015 terbentuk siklon tropis Quang di atas perairan Samudera Hindia. Walaupun siklon tropis Quang tidak melintasi wilayah Indonesia, akan tetapi dampak dari siklon tropis tersebut mempengaruhi kondisi dinamika atmosfer maupun oceanografi. Berdasarkan kondisi tersebut penelitian ini bertujuan untuk menganalisa kondisi oseanografi perairan selatan Jawa pada saat kejadian siklon tropis Quang. Data yang digunakan pada penelitian ini adalah data grib yang berisikan parameter arah dan kecepatan angin dan data klorofil-a dari hasil penginderaan satelit Aqua-MODIS. Siklon tropis Quang mulai menjadi depresi tropis pada tanggal tanggal 28 April 2015 dengan kecepatan angin mencapai 56 km/jam dan menjadi siklon tropis skala 4 dengan kecepatan mencapai 217 km/jam. Kondisi angin permukaan dan tinggi gelombang maksimum laut di perairan selatan Jawa pada umumnya meningkat intensitasnya seiring dengan peningkatan aktivitas siklon tropis Quang dan ikut berkurang intensitasnya ketika siklon tropis mulai punah. Pada kondisi arus permukaan di perairan selatan Jawa memperlihatkan kebalikan dari parameter angin dan gelombang dimana kecepatan arus permukaan berkurang seiring dengan meningkatnya aktivitas siklon tropis Quang. Selama pembentukan siklon tropis Quang hingga punahnya umumnya terjadi fenomena upwelling pada wilayah perairan selatan Jawa.

Co-Authors - Pramonowibowo - Subiyanto - Supriharyono Abdul Ghani Agus Wahyudi Ahmad Fadlan Alfian Zulfikar, Alfian Ambariyanto Ambariyanto Andri Ramdhani Andrian Juniarta, Andrian Angela Merici Dwi Widiyanti Anindya Wirasatriya Aris Ismanto Ayuningtyas Indrawati Bagus Biantara, Bagus Bambang Sulardiono Boedi Hendrarto Budhi Agung Prasetyo Carleone de Prima, Carleone Churun A’in Dewati Ayu Febrianti Dewi Sartika Djoko Suprapto Ferdiansyah Ferdiansyah Frida Aprilia Loinenak, Frida Aprilia Frida Purwanti Geertruidha Adelheid Latumeten Haeruddin Haeruddin Hanifati Masturah Herry Boesono I. Kumalasari Indradi Setiyanto Khoerul Umah Kurniawan Kurniawan Lestari Lahksmi Widowati Max Rudolf Muskananfola Max Rudolf Muskanonfola Miladiyah Ahsanul Akhlak, Miladiyah Ahsanul Moh Toriq Abidin, Moh Toriq Monica Evi Suanty Manurung Monica Febrina Silitonga Muhammad Helmi Muhammad Najib Habibie Muhammad Zainuri Mutia Ismi Febrianti Mutia Ismi Febrianti Nabila Fikri Dwi Cahyani Nadhea O. Rahmawati Niniek Widyorini Nining Sari Ningsih Noky Rizky Samudra, Noky Rizky Nurul Latifah nurul latifah Nurwinda Hikmawati Olvi Cristianawati Pra Luber Agung Wibowo Pramonowibiwo M.Pi. Prayogi Prayogi Prijadi Soedarsono Pujiono Wahyu Purnomo Rahayu Sapta S. Sudewi Rahmatuloh, Irzani Hamzah Setya Ratri Canar Perdana Restiana Wisnu Ariyati Richan Fakhrurrizal Rimty Mayuftia Rio Januardi, Rio Roni Kurniawan Sahala Hutabarat SARASWATI SARASWATI Sasanti Retno Suharti, Sasanti Retno Sembiring, Yoan Teresia Br Simon Giando Sinaga, Simon Giando Siska Tri Cahyaningrum Siswanto Siswanto Sonny Lahati Subiyanto Subiyanto Suryanti - Sutrisno Anggoro Sutrisno Anggoro Urfan Ridha Yosafat Donni Haryanto Zulyani Zulyani

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