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All Journal Indonesian Journal of Geography Journal of Environmental Engineering and Sustainable Technology Jurnal Akuatika Indonesia Jurnal Penelitian Perikanan Indonesia Jurnal Riset Kelautan Tropis (Journal Of Tropical Marine Research) (J-Tropimar) Jurnal Riset Kelautan Tropis (J-Tropimar) JPMP
Widagdo, Supriyatno
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Fenomena Upwelling di Perairan Spermonde Sulawesi Selatan Dyan Viegas Wibisono; Supriyatno Widagdo; Viv Djanat Prasita
Jurnal Riset Kelautan Tropis (Journal Of Tropical Marine Research) (J-Tropimar) Vol 4 No 2 (2022): November
Publisher : Universitas Hang Tuah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30649/jrkt.v4i2.54

Abstract

Spermonde waters are waters that surround the Spermonde islands with shallows located in the southwest of South Sulawesi which is in the tropics and crossed by the equator which causes these waters to experience two different seasons, namely the west and east monsoons. The purpose of this study was to analyze the upwelling phenomenon in spermonde waters. Spermonde waters in the east monsoon (June-August) have the potential for upwelling because they have strong winds and currents so that there is an Ekman transport that causes the deflection of the current to move from southeast to west. Indications of upwelling can be seen from the increase in the temperature and salinity of the water mass from the inside that occurs at all stations so that it is strong for upwelling to occur. The pattern of chlorophyll-a concentrations in the Mediterranean and upwelling seas that occur is weak because the highest chlorophyll is near the coast due to the influence of river water and several other industrial activities so that off shore area shaven ottoo high chlorophyll whichis associated with adecrease in sea surface temperature.
Variabilitas Temperatur Permukaan Laut, Salinitas, dan, Curah Hujan Pada Periode El Niño-Southern Oscillation (Enso) di Perairan Selat Madura Jennifer Ellen Toding; Supriyatno Widagdo; Rudi Siap Bintoro
Jurnal Riset Kelautan Tropis (Journal Of Tropical Marine Research) (J-Tropimar) Vol 4 No 1 (2022): April
Publisher : Universitas Hang Tuah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30649/jrkt.v4i1.60

Abstract

The variability of temperature, salinity and rainfall in the Indonesian region is strongly influenced by the El Niño-Southern Oscillation (ENSO) phenomenon so that this study aims to describe the characteristics of the ENSO phenomenon, compare and analyze the characteristics of temperature, salinity and rainfall under normal conditions and changes due to the ENSO phenomenon in the Madura Strait. This study used a descriptive method by collecting data using secondary data and making a description of the observed phenomenon. Data required for 12 years from 2010-2021. The results showed that the variability of temperature measured during the 2010-2021 period showed the highest temperature values were in the closed waters of the Madura Strait with an average of 28.64°C and the lowest were in the central waters with an average value of 28.59°C. The highest rainfall value is in closed waters with an average of 6.06 mm and the lowest is in central waters with an average value of 5.562 mm. The highest salinity is in open water with an average value of 32.06 ppt while the lowest salinity is in closed water with an average of 31.42 ppt. The highest temperature and rainfall are generally found when the La Niña phenomenon is taking place, while the lowestntemperature and rainfall are found during the El Niño phenomenon. The highest salinity is generally found during the El Niño phenomenon, while the lowest salinity occurs during the La Niña phenomenon.
Distribusi Salinitas dan Temperatur Permukaan Berdasarkan Angin dan Arus di Selat Madura Muhamad Samodro Abdulrohiim Rohiim; Supriyatno Widagdo; Viv Djanat Prasita
Jurnal Riset Kelautan Tropis (Journal Of Tropical Marine Research) (J-Tropimar) Vol 4 No 1 (2022): April
Publisher : Universitas Hang Tuah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30649/jrkt.v4i1.64

Abstract

Salinity and Sea Surface Temperature (SST) are important parameters in oceanographic and climate studies. The value of salinity at sea level is caused by precipitation and evaporation of fresh water and is influenced by the entry of fresh water into sea waters. In addition, physical parameters such as wind, ocean currents, and rainfall can also affect horizontal salinity values. Several factors that affect SST are: depth, intensity of sunlight, precipitation and evaporation, as well as wind and air circulation. The purpose of this study was to analyze the effect of seasonal wind and current patterns on salinity and SST in the Madura Strait. The period studied was from 2010 to 2020 with the main parameters analyzed were salinity, SST, wind and currents as well as rainfall and river flows that emptied into the waters as supporting parameters. The results of this study showed that the minimum average salinity value occurred in the transition season at the beginning of the year with a value of 31.8 0/00 and the highest value of 32.77 0/00 occurred in the transition season at the end of the year. And for the lowest average SPL value occurred in the east monsoon season with a value of 28.38 oC and the highest SPL value of 30.17 oC which occurred in the transition season at the beginning of the year.
HIDRO-OSEANOGRAFI SEBAGAI SARANA BANTU DALAM ZONASI DI WISATA PASIR PUTIH DALEGAN KABUPATEN GRESIK, JAWA TIMUR Rudi S Bintoro; Supriyatno Widagdo; Joko Subur; Setya Prihatiningtyas
Jurnal Pengabdian Masyarakat Pesisir VOLUME 1 NOMOR 1
Publisher : Universitas Hang Tuah Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30649/jpmp.v1i1.80

Abstract

Pengabdian masyarakat ini bertujuan untuk penyediaan informasi kelautan berupa peta hidro-oseanografi yang dapat digunakan sebagai peta dasar dalam menyusun penggunaan lahan di wisata pasir putih Dalegan. Pencapaian tujuan tersebut dilakukan melalui survei pasang surut dan survei batimetri untuk menggambarkan permukaan dasar laut di wisata pasir putih Dalegan. Hasil survei selanjutnya digunakan untuk analisis pengggunaan lahan di area laut. Hasil penelitian menunjukkan bahwa berdasarkan peta batimetri dan data pasang surut dapat ditentutan luas daerah laut yang aman untuk wisata laut, yaitu seluas 37,992 m2. Demikian pula dapat diketahui bahwa ketinggian tanggul sungai yang berbatasan dengan daerah wisata masih belum optimal, sehingga saat air laut pasang, air akan melimpas di atas tanggul membanjiri daerah wisata. Adapun saran yang dapat diajukan dari hasil program pengabdian masyarakat bagi pokdarwis adalah lebih termotivasi dalam menyelesaikan pembangunan sarana dan prasarana di wisata pasir putih Dalegan.
Pasang Surut dan Arus Pasang Surut di Area Dermaga Pelabuhan Perikanan Pantai, Muncar, Banyuwangi Rifqy Firdausyah; Rudi Siap Bintoro; Supriyatno Widagdo
Jurnal Riset Kelautan Tropis (Journal Of Tropical Marine Research) (J-Tropimar) Vol 5 No 1 (2023): April
Publisher : Universitas Hang Tuah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30649/jrkt.v5i1.66

Abstract

Hydro-Oceanographic Parameters are the main factor in supporting the development and periodic maintenance of a port. The research was conducted in November 2021. The data in the study were obtained from observations in the field. The data used in this research is in the form of tidal data and tidal currents. Based on the results of data processing for 1 month in November 2021, the Muncar waters have a mixed tide prevailing semi-diurnal type. The highest tide value during November occurred on November 17 2021 at 22:00 WIB with a water level of 2.6 m and the lowest tide occurred on November 18 2021 at 05:00 WIB with a water level of 0.4 m. Currents move from the Bali Strait towards the Indian Ocean. Just before high tide, the tidal currents move from east to west (entering the anchor pond) with a speed of 0.40 – 0.64 m/s. At low tide, the current moves from West to East (leaving the anchor pond) with a speed of 0.42 – 0.58 m/s.
Karakteristik Curah Hujan Monsunal Pada Periode ENSO dan IOD (Studi Kasus: Lampung, Surabaya dan Jayapura) Sisca Ayu Renitasari; Supriyatno Widagdo; Rudi Siap Bintoro
Jurnal Riset Kelautan Tropis (Journal Of Tropical Marine Research) (J-Tropimar) Vol 5 No 1 (2023): April
Publisher : Universitas Hang Tuah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30649/jrkt.v5i1.69

Abstract

The variability of rainfall in the Indonesian region is strongly influenced by the ENSO and IOD phenomenon. The purpose of this study is to describe the characteristics of the ENSO and IOD phenomena over a period of 31 years, compare the characteristics of rainfall under normal conditions and characteristics due to ENSO and IOD phenomenon, and analyze the monsoon rain area (Lampung, Surabaya, Jayapura) which are more influenced by ENSO and IOD phenomenon. The results showed that in the first decade to the second decade the incidence of La Niña decreased by 3.4% and then increased in the last decade by 4.3%, as the dominant La Niña incidence in weak intensity has increased every decade. At the time of the IOD phenomenon in the first decade to the second decade there was an increase in Positive IOD of 15.2% and then an increase which tends to be drastic in the last decade by 27.2%. In the Lampung and Surabaya areas, when El Niño and Positive IOD occur, the beginning of the rainy season tended to come later, meaning the dry season was longer, which occurred from May to November. When La Niña and Negative IOD occurred, the rainy season began earlier in June to November and experiences the rainy season throughout the year. In the Jayapura area, rainfall tended to occur throughout the year during the ENSO and IOD phenomena. The influence caused
Karakteristik Cuaca Maritim untuk Keselamatan Pelayaran di Perairan Popoh, Tulungagung Tasya Olivia Rinekso; Supriyatno Widagdo; Rudi Siap Bintoro
Jurnal Riset Kelautan Tropis (Journal Of Tropical Marine Research) (J-Tropimar) Vol 5 No 1 (2023): April
Publisher : Universitas Hang Tuah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30649/jrkt.v5i1.70

Abstract

Popoh Waters has a bay that contains a fishing boat port, a Fish Auction Place (TPI), and a Fishing Port (PPI). Indonesia has many cases of fishing boat accidents caused by bad weather. It is important to know maritime weather information to minimize fishing boat accidents. This study aims to identify the characteristics of wind, rainfall, sea waves in each season, identify the seasons that are dangerous for fishing boats and their effects on fishermen's catches. The results of the processing showed that Popoh waters had wind characteristics with a category that can endanger fishing boats in the East season with a top speed of 8.41 m/s. The characteristic of rainfall which had the highest rainfall was the West monsoon with the highest intensity of 87 mm. The characteristics of the waves in Popoh waters had waves that could endanger the sailing of fishing boats in the East season with the highest wave condition of 1.93 m.
The Coastline Change Pattern of Gresik Beach around the Madura Strait, Indonesia Prasita, Viv Djanat; Bintoro, Rudi Siap; Permatasari, Ima Nurmalia; Widagdo, Supriyatno; Sugianto, Erik; Rosana, Nurul
Indonesian Journal of Geography Vol 55, No 3 (2023): Indonesian Journal of Geography
Publisher : Faculty of Geography, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ijg.80934

Abstract

The coastal region is characterized by dynamic changes in its coastline, which can be attributed to various factors. However, the main causes of change along the Gresik coast have yet to be thoroughly studied. Therefore, this research aims to examine the patterns of coastline change along the Gresik coast around the Madura Strait and the influence of wind-generated waves on them. Specifically, the study focuses on four coastal zones: Ujung Pangkah, Sidayu, Bungah, and Manyar districts. The research utilizes satellite imagery and geographic information systems (GIS) as well as methods for calculating ocean waves to analyze the coastline change patterns. The study also examines the impact of ocean wave energy on coastal abrasion and accretion. The findings revealed that the accretion rate in the study area was higher than the erosion rate. The accretion in the coastal area of Gresik is attributed to the flow of the Bengawan Solo River, which carries sediment from upstream. The accretion and abrasion areas for the entire period from 2002 to 2019 were 1063.16 ha and 425.23 ha, respectively. The study also found that the mangrove areas exhibit a higher rate of accretion than abrasion, indicating their potential as a reliable indicator of the effects of sea level rise resulting from global warming.This study revealed that the northern part of Ujung Pangkah District and Bungah District experienced the highest abrasion patterns, whereas no abrasion was observed in Sidayu District. Between 2002 and 2019, the abrasion areas in Ujung Pangkah and Bungah districts totaled 243.96 ha and 178.29 ha, respectively. Wind-generated waves were likely the primary cause of the abrasion in these areas, though other factors may also have contributed to coastline changes. It is essential to consider these factors for effective coastal management in the region.
INTENSITAS UPWELLING SELAMA PERIODE EL NIÑO–SOUTHERN OSCILLATION (ENSO) DI PERAIRAN SELATAN JAWA Hafiz, Muhammad; Widagdo, Supriyatno; Prasita, Viv Djanat
Jurnal Riset Kelautan Tropis (Journal Of Tropical Marine Research) (J-Tropimar) Vol 6 No 1 (2024): April
Publisher : Universitas Hang Tuah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30649/jrkt.v6i1.77

Abstract

Kondisi perairan Laut Jawa sangat dipengaruhi oleh perubahan parameter oseanografi permukaan dan atmosfer seperti El Niño-Southern Oscillation (ENSO). Anomali tersebut mempengaruhi beberapa parameter oseanografi, termasuk terjadinya upwelling yang intensif. Penelitian ini bertujuan untuk mengetahui potensi dan korelasi parameter oseanografi dengan fenomena upwelling pada masa ENSO dan tahun netral di perairan selatan Jawa. Data angin, arus, suhu, salinitas, dan klorofil-a diperoleh dari website Copernicus pada tahun 2016 hingga 2023. Analisis deskriptif digunakan untuk menganalisis data dengan cara mendeskripsikan data yang dikumpulkan, menentukan transpor Ekman berdasarkan pola angin dan arus, menganalisis secara horizontal menggunakan distribusi suhu, salinitas, dan klorofil-a, serta menganalisis dinamika massa air vertikal berdasarkan suhu dan salinitas di perairan selatan Jawa. Pola angin dan arus di perairan selatan Jawa pada musim timur menunjukkan transpor Ekman akibat adanya angin dari tenggara menuju barat laut sehingga menyebabkan pembelokan arah arus dari tenggara ke barat daya (menjauhi pantai). Suhu Permukaan Laut (SST) di perairan selatan Jawa menjadi lebih dingin pada saat El Niño dan netral, sedangkan pada saat La Niña, SPL menjadi lebih hangat. Nilai salinitas dan klorofil-a cenderung lebih tinggi pada saat El Niño dan kondisi netral. Intensitas upwelling di perairan selatan Jawa bervariasi dari lemah hingga kuat; Diketahui bahwa pada tahun netral dan El Niño intensitasnya kuat, sedangkan pada tahun La Niña intensitasnya cenderung sedang.
Produktivitas Alat Tangkap Pocongan Terhadap Puerulus (Panulirus spp.) pada Kedalaman Berbeda di Perairan Prigi Subagio, Hari; Bintoro, Gatut; Rosana, Nurul; Widagdo, Supriyatno; Subianto, Agus; Sofijanto, Mochamad Arief; Nuhman, Nuhman; Sulestiani, Aniek; Kusyairi, Achamad; Mu'minin, Airul Amirul
Akuatika Indonesia Vol 10, No 1 (2025): Jurnal Akuatika Indonesia (JAkI)
Publisher : Direktorat Sumber Daya Akademik dan Perpustakaan Universitas Padjadjaran, Grha. Kandaga (P

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/jaki.v10i1.54945

Abstract

Optimalisasi pemanfaatan sumberdaya lobster duri (Panulirus spp.) melalui kegiatan budidaya perairan layak untuk direalisasikan guna memenuhi peningkatan permintaan ekspor. Akan tetapi kebutuhan Benih Bening Lobster (BBL) masih mengandalkan hasil tangkapan dari alam. Penangkapan BBL di perairan pesisir Prigi menggunakan Alat Tangkap Pocongan (ATP). Terkait dengan hal tersebut, permasalahan yang mendesak untuk dipecahkankan adalah pada kedalaman berapa posisi pemasangan kolektor ATP yang paling produktif menghasilkan tangkapan BBL. Penelitian ini bertujuan untuk mengetahui pengaruh kedalaman pemasangan Kolektor Pocongan (KP) pada Alat Tangkap Pocongan Sistem Rakit (ATPSR) terhadap jumlah tangkapan BBL. Penelitian menggunakan metode eksperimen, dengan menggunakan 3 unit ATPSR yang dioperasikan di perairan pesisir Teluk Prigi. Pada masing-masing unit ATPSR menggunakan tiga macam kedalaman KP, yaitu KP di permukaan perairan (X1); di pertengahan perairan (X2); dan di dasar perairan (X3). Penelitian dilaksanakan pada bulan Juni-Agustus 2022. Hasil penelitian menunjukkan rerata ± SD hasil tangkapan BBL per KP berturut-turut dari yang tertinggi adalah X3: 4,1 (± 3,3) ekor, X2: 0,6 (± 0,4) ekor, dan terakhir X1: 0,2 (± 0,2). Disimpulkan bahwa faktor kedalaman KP berpengaruh nyata (Sig. 0,00) terhadap jumlah tangkapan BBL. Perlakuan X1 dan X2 tidak berbeda nyata, sedangkan X3 berbeda nyata dengan X1 dan X2. Secara deskriptif, total hasil tangkapan BBL berdasarkan spesies tertinggi dalam persen adalah Lobster Pasir (Panulirus homarus) 59,3%, Lobster Mutiara (Panulirus ornatus) 27,6%, Lobster Bambu (Panulirus versicolor) 11,6%, dan Lobster Batu (Panulirus penicillatus) 1,5%. Peneliti menyarankan untuk melakukan kajian lebih lanjut mengenai rekayasa ATPSR untuk meningkatkan produktivitas hasil tangkapan BBL.
Co-Authors Aniek Sulestiani Aniek Sulestiani Bambang Semedi Bintoro, Rudi Siap Dyan Viegas Wibisono Erfanda, Alfian Fajar Setiawan Gatut Bintoro I Made Kawan Jennifer Ellen Toding Joko Subur Kusyairi, Achamad Lololuan, Proto C.R. Mahmiah Mahmiah Mahsunah, Ovia Mochamad Arief Sofijanto Mu'minin, Airul Amirul Muhamad Firdaus Muhamad Samodro Abdulrohiim Rohiim Muhammad Hafiz Nuhman, Nuhman Nurul Rosana, Nurul Permatasari, Ima Nurmalia Prasetyo, Eko Pratama, Rizki Lindra Prima Aris Wardhani Rahyono, Rahyono Rifqy Firdausyah Rudi S Bintoro Rudi Siap Bintoro Saadah, Via Hofsotus Sasi, Gea Amara Setya Prihatiningtyas Siap Bintoro, Rudi Sisca Ayu Renitasari Sofijanto, Mochamad Arief Subagio, Hari Subianto, Agus Sugianto, Erik Taruna, Ananda Rizki Tasya Olivia Rinekso Viv Djanat Prasita Viv Djanat Prasita, Viv Djanat