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All Journal Jurnal Ilmu dan Teknologi Kelautan Tropis Journal of Marine and Aquatic Sciences Journal of Environment Jurnal Kelautan : Indonesian Journal of Marine Science and Technology Jurnal Pamator : Jurnal Ilmiah Universitas Trunojoyo Madura REKAYASA Jurnal Perikanan Universitas Gadjah Mada Journal of Marine Research and Technology Jurnal Kelautan dan Perikanan Terapan (JKPT) Jurnal Kelautan Nasional Juvenil: Jurnal Ilmiah Kelautan dan Perikanan Geosfera Indonesia Ulil Albab

Dwi Budi Wiyanto

Program Studi Ilmu Kelautan, Fakultas Kelautan Dan Perikanan, Universitas Udayana, Kampus UNUD Bukit Jimbaran, Bali 80361

Author-ID : 2926721

Religion Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Computer Science & IT Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Environmental Science Immunology & microbiology Library & Information Science Physics Social Sciences

Published : 26 Documents Claim Missing Document

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APLIKASI SISTEM INFORMASI GEOGRAFIS UNTUK PEMETAAN TAMBAK GARAM DI KABUPATEN SIDOARJO Wiyanto, Dwi Budi; Sulistiorini, Dyah Ayu
Rekayasa Vol 11, No 1: April 2018
Publisher : Universitas Trunojoyo Madura

Sistem Informasi Geografis dapat digunakan untuk memetakan lahan tambak garam yang juga dapat diisi oleh banyak informasi dari pemilik, produksi, serta luasan dari tiap petak tambak garam sehingga nantinya dapat menjadi suatu informasi yang lengkap untuk keperluan database pemerintah maupun instansi terkait. Penelitian ini bertujuan untuk memetakan potensi lahan tambak garam di wilayah Kabupaten Sidoarjo serta mengetahui cakupan luas lahan produksi tambak garam di Kabupaten Sidoarjo. Hasilnya menunjukkan bahwa luas lahan tambak garam di Kabupaten Sidoarjo adalah 351,59 Ha dengan 162,5 Ha diantaranya adalah lahan produktif. Analisa yang dilakukan terhadap trend produksi garam di Kabupaten Sidoarjo menunjukkan hasil yang berfluktuatif pada periode tahun 2000 hingga 2016. Fluktuasi produksi ini diakibatkan oleh perubahan kondisi cuaca. Rendahnya produksi garam pada tahun 2005 dan 2010 diduga sebagai akibat dari pengaruh adanya musim hujan dengan periode yang panjang.

Dampak Pemutihan Karang Keras pada Komunitas Ikan Karang dan Makrozoobenthos di Wilayah Perairan Tejakula, Buleleng, Bali Faiqoh, Elok; Karang, I Wayan Gede Astawa; Wiyanto, Dwi Budi
Rekayasa Vol 12, No 1: April 2019
Publisher : Universitas Trunojoyo Madura

ABSTRAKPemutihan karang merupakan salah satu dampak dari perubahan iklim global, kenaikan suhu tersebut memberikan dampak negatif bagi keseimbangan ekosistem terumbu karang. Terumbu karang yang memutih dan kehilangan zooxanthella nya akan rentan terkena infeksi dan penyakit. Populasi komunitas ikan karang pemakan hewan karang dan makrozoobenthos juga akan menurun. Tujuan dari penelitian ini adalah untuk mengetahui besar dampak kerusakan terumbu karang dan dampaknya bagi populasi ikan dan makrozoobenthos. Survey dilakukan pada 3 titik di wilayah perairan Tejakula dengan metode reefcheck. Hasil penelitian menunjukkan kematian terumbu karang sebesar 5-7.5%, jumlah alga yang menutupi 3.125%. Kondisi ikan kepe-kepe yang merupakan pemakan hewan karang juga sudah ditemukan dalam jumlah cukup banyak. Keberadaan ikan herbivora dan makrozoobenthos herbivore membantu mengurangi jumlah alga yang menutupi. Sedangkan keberadaan ikan pemakan terumbu karang dan ikan predator memperlihatkan bahwa sistem ekologi yang ada di terumbu karang tersebut hampir kembali normal. Kata Kunci: terumbu karang, komunitas ikan karang, makrozoobenthos.The Impact of Hard Coral Bleaching in Coral and Macrozoobenthos Fish Communities in Tejakula, Buleleng, Bali Water AreasABSTRACTCoral bleaching is one of the consequences of global climate change, as the rise of temperature negatively impacts the ecological balance of reef ecosystems. Bleached coral reefs lose their zooxanthellae, increasing vulnerability to infection and disease and consequently, causing population decline of macrozoobenthos and reef fish communities which prey on coral-consuming organisms. This research aims to determine the degree of coral reef damage and its impact on fish and macrozoobenthos population. The survey was conducted on 3 stations in Tejakula waters with the reef check method. Results show that coral reef death reaches 5-7.5%, with algal coverage of 3.125%. Kepe-kepe fish which prey on coral-consuming animals were also found in relatively high abundance. The presence of herbivore fish and macrozoobenthos help reduce algal cover. Meanwhile, the presence of coral-consuming and predator fish indicate that the coral reef ecological system has mostly returned to normal. Keywords: coral reef, reef fish community, macrozoobenthos

Study on Growth Rate and Seaweed Eucheuma spinosum And Euchema cottoni in Waters of Kutuh Village, South Kuta Sub-District, District of Badung-Bali Wiyanto, Dwi Budi
Journal of Environment Vol 1 No 1
Publisher : Graduate Study of Environmental Sciences, Postgraduate Program of Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar

Seaweed is a non-fish fishery commodity. The market demand for seaweed, both from the domestic and foreign markets has a bright future as a trade commodity on the international market. Bali is one of the islands of seaweed producers in Indonesia. Seaweed production in Bali in 2008, decreased to 15.2% compared to that in 2007. The purpose of this study was to determine how big the difference between the growth rate of E. cottonii seaweed and that of E. spinosum. Seaweed cultivation was conducted using raft off the base (off bottom method) of 2 units with the size of 5 x 2.5 meters each. Spacing of each seed was 25 -30 cm. Seed weight of seaweed E. cottonii and E. spinosum is equal to 100 grams. Maintenance time was for 40 days, and the sampling was done once every 10 days as many as 10 samples of seaweed. The results showed that seaweed E. cottonii had faster growth compared with E. spinosum. Seaweed daily growth of the species E. spinosum in the first 10 days was faster than the seaweed of the species E. cottonii. However, the second 10 days to the third 10 days E. cottonii seaweed growth was faster than E. spinosum. The average weight of Euheuma cottonii for 40 days planting was 189.29 grams while the average weight of Eucheuma spinosum was 185.55 grams. Water condition in the location of research was still in the normal range for the growth of two species of seaweed cultivated.

Pemodelan Sistem Informasi Geografis untuk Pemetaan Kesesuaian Wilayah Perairan dan Pesisir Selat Madura Hidayah, Zainul; Wiyanto, Dwi Budi
Rekayasa Vol 14, No 1: April 2021
Publisher : Universitas Trunojoyo Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/rekayasa.v14i1.9987

The coastal area of the Madura Strait stretches from Surabaya City to the east to Situbondo Regency and includes the southern part of Madura Island. The aim of this research is to map the suitability of the waters and coastal areas of the Madura Strait using GIS modeling. Mapping of the designation of the waters and coastal areas of the Madura Strait was carried out by overlaying spatial data covering bio-physical parameters including water transparency, pH, water substrate, temperature, salinity, and depth. The designation of water areas is divided into three classes, namely capture fisheries, tourism and conservation purposes. The spatial data used comes from several sources, namely the results of water quality surveys, Landsat 8 satellite imagery, bathymetry data / sea depth and Rupa Bumi Indonesia (RBI) maps at a scale of 1: 25,000. For water quality data comes from the results of a survey by the Marine and Fisheries Service of East Java Province in 2019 at 78 observation points in the waters of the Madura Strait. Water quality parameters used in GIS modeling are pH, salinity, brightness and temperature. The data for each observation point were then interpolated using the Kringing method. Landsat 8 satellite imagery is used to map the condition of the bottom substrate waters. Meanwhile, the depth data was downloaded from GEBCO (General Bathymetric Charts of the Oceans). The result of overlaying thematic maps shows that 37.69% (8586.69 km2) of the area of the Madura Strait is suitable for capture fisheries activities, then 10.28% (2341.02 km2) is suitable for marine tourism areas and 19.06 % (4343.4 km2) suitable for conservation areas. Meanwhile, 32.97% (7511.94 km2) can be used as conservation and tourism areas.

UJI AKTIVITAS ANTIBAKTERI EKSTRAK RUMPUT LAUT Kappaphycus alvarezii DAN Eucheuma denticullatum TERHADAP BAKTERI Aeromonas hydrophila DAN Vibrio harveyii Dwi Budi Wiyanto
Jurnal Kelautan Vol 3, No 1: April (2010)
Publisher : Department of Marine Sciences, Trunojoyo University of Madura, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/jk.v3i1.837

Penelitian tentang Uji Aktivitas Antibakteri Ekstrak Rumput Laut Kappaphycus alvarezii dan Eucheuma denticullatum Terhadap Bakteri Aeromonas hydrophila dan Vibrio harveyii dilakukan, mengingat banyak dijumpai penyakit pada usaha budidaya ikan dan udang, terutama bakteri Aeromonas hydrophila dan Vibrio harveyii. Penelitian ini bertujuan untuk mengetahui efektifitas senyawa bioaktif rumput laut K. alvarezii dan E. denticullatum yang diekstrak menggunakan pelarut metanol dan etanol sebagai antibakteri terhadap A. hydrophila dan V. harveyii. Penelitian dilakukan sebanyak dua tahap, yaitu: (1) Uji aktivitas antibakteri ekstrak rumput laut; dan (2) Analisa senyawa bioaktif yang terdapat pada ekstrak rumput laut, dimana masing-masing tahapan dianalisis menggunakan rancangan acak lengkap faktorial. Hasil penelitian menunjukkan, dua jenis ekstrak rumput laut dengan pelarut metanol dan etanol, mempunyai daya antibakteri terhadap A. hydrophila dan V. harveyii. Ekstrak E. denticullatum dengan pelarut metanol memiliki daya hambat lebih luas dibanding ekstrak K. alvarezii dengan pelarut metanol terhadap A. hydrophila (19.43±0,55 mm). Ekstrak E. denticullatum dengan pelarut metanol memiliki daya hambat lebih luas dibanding ekastrak K. alvarezii dengan pelarut metanol terhadap V. harveyii (19.85±0,23 mm). Asam heksadekanoat merupakan senyawa paling dominan dijumpai pada ekstrak rumput laut K. alvarezii, dan E. denticullatum yang diekstrak menggunakan pelarut metanol. Kata Kunci : Aktivitas Antibakteri, Rumput laut K. alvarezii dan E. denticullatum, Bakteri A. hydrophila dan V. harveyii.

STUDI KONDISI HIDROLOGIS SEBAGAI LOKASI PENEMPATAN TERUMBU BUATAN DI PERAIRAN TANJUNG BENOA BALI Abd. Rahman As-Syakur; Dwi Budi Wiyanto
Jurnal Kelautan Vol 9, No 1: April (2016)
Publisher : Department of Marine Sciences, Trunojoyo University of Madura, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/jk.v9i1.1293

STUDY OF HIDROLOGICAL CONDITION FOR ARTIFICIAL REEF LOCATION IN TANJUNG BENOA BALIOne of the tourism which was demanded by the tourists are underwater activity, namely scuba diving and seawalker, where the main target underwater tourism activities is the beauty of the underwater in the form of coral and reef fish. The purpose of this study is to determine the hydrological condition of artificial reefs in Tanjung Benoa, Bali. The method used in determining the location is a purposive sampling method. Sampling was carried out in three (3) stations and taken randomly in the study site (Tanjung Benoa). Measurement of hydrological conditions include the temperature, salinity, water clarity, current, depth, turbidity, TSS, DO, Nitrate, Phosphate. Hydrological conditions measurements carried out in situ (direct) and in laboratory. Data was analyzed by descriptive qualitative by comparing the quality of water based on the Ministry of the Environment Decree No. 51 of 2004 on Sea Water Quality Standard. Based on the results of hydrological conditions measurements, conditions of environmental parameters are still within the tolerance limit for the growth of marine biota. The basic conditions of the waters is not suitable for the placement of artificial reefs, this is because the substrate is muddy sand, where the basic conditions of these waters will submerge artificial reef into the sand.Keywords: artificial reef, hidrological condition, Tanjung BenoaABSTRAKSalah satu wisata yang sangat diminati oleh para wisatawan adalah wisata bawah air, yaitu scuba diving dan seawalker, dimana dalam kegiatan wisata bawah air yang menjadi target utama yaitu keindahan bawah air berupa terumbu karang dan ikan karang. Tujuan penelitian ini yaitu untuk mengetahui kondisi hidrologis terumbu karang buatan di Tanjung Benoa-Bali. Metode yang digunakan dalam penentuan lokasi sampling adalah metode sampling pertimbangan, yaitu metode pengambilan lokasi dan sampel didasarkan atas adanya tujuan tertentu dengan berbagai pertimbangan. Pengambilan sampel dilakukan di 3 (tiga) stasiun yang diambil secara acak di lokasi penelitian (Tanjung Benoa). Pengukuran kondisi hidrologis meliputi suhu, salinitas, kecerahan, kecepatan arus, kedalaman, kekeruhan, TSS, DO, Nitrat, Fosfat. Pengukuran kondisi hidrologis dilakukan secara insitu (langsung) dan pengujian skala laboratorium. Data di analisis secara diskriptif kualitatif dengan membandingkan kualitas air berdasarkan Keputusan Menteri Negara Lingkungan Hidup Nomor 51 Tahun 2004 Tentang Baku Mutu Air Laut. Berdasarkan hasil pengukuran kondisi hidrologis, kondisi parameter lingkungan masih dalam batas toleransi untuk pertumbuhan biota laut. Kondisi dasar perairan sangat tidak cocok untuk penempatan terumbu karang buatan (artificial reef), hal ini dikarenakan substrat dasar perairan yaitu pasir berlumpur, dimana kondisi dasar perairan tersebut akan menenggelamkan terumbu karang buatan (artificial reef) kedalam pasir. Kata Kunci: kondisi hidrologis, terumbu buatan, Tanjung Benoa

Struktur Komunitas Uca Sp Di Kawasan Teluk Benoa Pada Karakteristik Substrat Yang Berbeda Ni Wayan Loviasari; Abd. Rahman As-syakur; Elok Faiqoh; I Gusti Ngurah Putra Dirgayusa; Dwi Budi Wiyanto
Journal of Marine and Aquatic Sciences Vol 4 No 1 (2018)
Publisher : Fakultas Kelautan dan Perikanan Universitas Udayana

The mangrove ecosystem is home to a variety of fauna, ranging from water animals to primates, as a breeding ground for a variety of aquatic animals such as fish, crustaceans, crabs and mollusks, as well as a place to feed a number of wildlife such as reptiles and mammals. Uca sp is one of the fauna that utilizes and helps mangrove in its ecological balance. This research was conducted on 3 mangrove areas with the purpose of knowing the types and structure of Uca sp community on different substrate characteristics, where in Mertasari mangrove have the type of sandy substrate, Muara Waduk Nusa Dua Denpasar has kind of sandy loam substrate and Tanjung Benoa has kind sandy substrate. The sampling time was conducted in December 2016 when the lowest tide of the month. Determination of stations taken at each research location (station) using purposive sampling method. From the results of the study found Uca sp as many as 5 types, namely Uca cryptica, Uca dussumieri, Uca rosea, Uca cryptica and Uca crassipes. The highest density of Uca sp that is at station 2 located in Muara Waduk Nusa Dua Denpasar is 52,75 ind/m2 and lowest at station 3 in Tanjung Benoa get 32,25 ind /m2. The index values ??of the diversity of the three research stations are categorized into low diversity. In all three research stations categorized into uniformity index with depressed community or low uniformity. Based on the calculation on the three stations have a high dominance index.

Struktur Komunitas Perifiton Pada Lamun Jenis Thalassia hemprichii dan Cymodocea rotundatta di Kawasan Pantai Sanur Putu Satya Pratama; Dwi Budi Wiyanto; Elok Faiqoh
Journal of Marine and Aquatic Sciences Vol 3 No 1 (2017)
Publisher : Fakultas Kelautan dan Perikanan Universitas Udayana

Seagrass has function as nursery ground, spawning ground, feeding ground and habitat for many coastal organism (benthic, fish and epiphytes). Tourism activities in Sanur beach, the habitat of seagrass, could change the water condition, it indirectly influencing the existences of seagrass plants and periphyton in Sanur beach. The aim of this study are to analyze community structure of periphyton on seagrass leaves (Thalassia hemprichii and Cymodocea rotundatta) and its relationship with water parameters in four stations at Sanur beach area that has the unique characteristics. Water parameters measured were temperature, salinity, DO (Dissolved oxyen), pH, nitrate, phosphate, and TSS (Total Suspended Solid). Data analysis using PCA (Principal Component Analysis) to see the parameters that most influence on the abundance of periphyton. The results showed diversity index (H’) of periphyton is moderate, eveness index (E) moderate to high, and dominance index (C) is low to medium. It concluded that conditions of Sanur waters is stable but it is easily changed due to anthropogenic influences. PCA analysis showed that the parameters of the water have different effects on the abundance of periphyton at each seagrass leaves. Periphyton on Thalassia hemprichii was influenced by TSS, while Cymodocea rotundatta was influenced by phosphate, nitrate, temperature, DO, and TSS.

Coral Reef Coverage Percentage on Binor Paiton-Probolinggo Seashore Dwi Budi Wiyanto
Journal of Marine and Aquatic Sciences Vol 2 No 1 (2016)
Publisher : Fakultas Kelautan dan Perikanan Universitas Udayana

The coral reef damage in Probolinggo region was expected to be caused by several factors. The first one comes from its society that exploits fishery by using cyanide toxin and bomb. The second one goes to the extraction of coral reef, which is used as decoration or construction materials. The other factor is likely caused by the existence of large industry on the seashore, such as Electric Steam Power Plant (PLTU) Paiton and others alike. Related to the development of coral reef ecosystem, availability of an accurate data is crucially needed to support the manner of future policy, so the research of coral reef coverage percentage needs to be conducted continuously. The aim of this research is to collect biological data of coral reef and to identify coral reef coverage percentage in the effort of constructing coral reef condition basic data on Binor, Paiton, and Probolinggo regency seashore. The method used in this research is Line Intercept Transect (LIT) method. LIT method is a method that used to decide benthic community on coral reef based on percentage growth, and to take note of benthic quantity along transect line. Percentage of living coral coverage in 3 meters depth on this Binor Paiton seashore that may be categorized in a good condition is 57,65%. While the rest are dead coral that is only 1,45%, other life form in 23,2%, and non-life form in 17,7%. A good condition of coral reef is caused by coral reef transplantation on the seashore, so this coral reef is dominated by Acropora Branching. On the other hand, Mortality Index (IM) of coral reef resulted in 24,5%. The result from observation and calculation of coral reef is dominated by Hard Coral in Acropora Branching (ACB) with coral reef coverage percentage of 39%, Coral Massive (CM) with coral reef coverage percentage of 2,85%, Coral Foliose (CF) with coral reef coverage percentage of 1,6%, and Coral Mushroom (CRM) with coral reef coverage percentage of 8,5%. Observation in 10 meters depth resulted in coral reef coverage percentage of 63,33%. 75% of living coral found on this 10 meters depth are dominated by Acropora branching coral, while the rest 25,21% are filled by Acropora tabulate coral and non-Acropora coral in the life form of branching, massive, sub-massive, foliose, and mushroom, where coral Mortality Index (IM) reached 28,5%. The high number of coral reef coverage percentage on Paiton is caused by successful coral transplantation and low activity of society in this location. The domination of large size Acropora branching coral were estimated comes from a few types, showing that coral resulted from transplantation has grown large and form a complex 3 dimension structure that is suitable for the life form of fish and living benthic.

Hubungan Kepadatan Bulu Babi (Echinoidea) dan Tutupan Terumbu Karang pada Kawasan Intertidal Pantai Sanur Tiara Permata Sari; Abd. Rahman As-syakur; Yulianto Suteja; Dwi Budi Wiyanto
Journal of Marine and Aquatic Sciences Vol 3 No 2 (2017)
Publisher : Fakultas Kelautan dan Perikanan Universitas Udayana

Marine intertidal region is an area that is affected by the mainland. One of the ecosystems found in the intertidal area is the coral reef ecosystem. Urchin is one that lives on these ecosystems. Sanur Beach area has coral reefs and the intertidal zone is quite extensive. The many activities and cruise tourism in Sanur Beach will indirectly affect the life of coral reefs and associated animal in it in this case urchins. The purpose of this study was to determine the relationship density of sea urchins and coral reefs cover percentage in the intertidal area on Sanur Beach. Research done during low tide. Coral reef data collection method and the density of sea urchins using 5x5m quadratic transects were analyzed using Pear Person bivariate correlations. Urchin densities ranging between 0-2.04 ind/m2. The percentage cover coral reefs ranged from 0.1- 17.9%. High and low density of sea urchins and the percentage of coral reefs affected allegedly incompatibility place their lives and because of pressure from community activities in Sanur. The density of sea urchins and the percentage of coral cover has a significant relationship with a strong degree of correlation is 0.79. Positive direction on that relationship means that the higher percentage of coral reefs, the higher density of sea urchins. This assume in which they live almost the same that is in need of a hard substrate and urchins use of coral reefs as a shelter.

Co-Authors Abd. Rahman As-syakur Akhmad Farid Alindya Eka Puspita Dewi Annadiyah, Mia Asyakur, Abdurachman Basyaasyah Rahmaningrum Pettalolo Elok Faiqoh Gusti Ayu Tiara Wisma Sari Hadiyanti, Alfi Rizki Haryo Dwito Armono I Gede Budi Astrawan I Gusti Ngurah Putra Dirgayusa I Putu Sugiana I Putu Yogi Darmendra I Wayan Gede Astawa Karang Indah Nurainie Istriyani, Ika Kurnia Maulinna Kusumo Wardhani Muhammad Fakhri Ramadhani Ni Wayan Loviasari Nuzula, Nike Ika Parmadi Parmadi Putu Adi Prawira Putu Satya Pratama Putu Satya Pratama Atmaja Sastra Ardi Agamis Ilhami Sulistiorini, Dyah Ayu Tiara Permata Sari Wirayuhanto, Harish Yulianto Suteja Zainul Hidayah

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