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All Journal Jurnal Ilmu dan Teknologi Kelautan Tropis METAMORFOSA Journal of Biological Sciences Journal of Marine and Aquatic Sciences Jurnal Biologi Udayana Bumi Lestari ILMU KELAUTAN: Indonesian Journal of Marine Sciences REKAYASA Jurnal Kelautan Tropis Jurnal Sumberdaya Akuatik Indopasifik Journal of Marine Research and Technology Musamus Fisheries and Marine Journal Advances in Tropical Biodiversity and Environmental Sciences Ulil Albab

Putra, I Nyoman Giri

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Author-ID : 998739

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 Energy Engineering Environmental Science Immunology & microbiology Library & Information Science Physics Social Sciences Veterinary

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HUBUNGAN ANTAR PARAMETER STRUKTUR TEGAKAN MANGROVE DALAM ESTIMASI SIMPANAN KARBON ABOVEGROUND PADA SKALA KOMUNITAS Eka Andiani, Anak Agung; I Wayan Gede Astawa Karang; I Nyoman Giri Putra; I Wayan Eka Dharmawan
Jurnal Ilmu dan Teknologi Kelautan Tropis Vol. 13 No. 3 (2021): Jurnal Ilmu dan Teknologi Kelautan Tropis
Publisher : Department of Marine Science and Technology, Faculty of Fisheries and Marine Science, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jitkt.v13i3.36363

Mangrove merupakan ekosistem pesisir yang memiliki kemampuan sangat baik dalam menyerap dan menyimpan karbon. Struktur tegakan mangrove memberikan kontribusi signifikan terhadap estimasi simpanan karbon yang umumnya tergambarkan pada persamaan alometrik dalam skala individu. Penelitian simpanan karbon atas permukaan tanah (abovegroundada komunitas mangrove telah dilakukan di mangrove Teluk Benoa. Penelitian ini bertujuan untuk membangun model dalam mengestimasi simpanan karbon aboveground dari beberapa parameter struktur tegakan mangrove. Metode stratified purposive sampling digunakan dalam penentuan sebaran titik penelitian. Sebanyak tiga zona (1–3) diidentifikasi berdasarkan interpretasi analisis mRE-SR (modified red edge-simple ratio) dan jenis mangrove yang mendominasi. Estimasi simpanan karbon aboveground diperoleh dengan metode non-destructive menggunakan persamaan common allometric. Hasil penelitian menunjukkan struktur tegakan mangrove zona 1 cenderung berbeda signifikan dengan zona lainnya. Secara keseluruhan, rata-rata simpanan karbon aboveground sebesar 193,45±34,88 ton C/ha. Simpanan karbon aboveground tertinggi ditemukan pada zona 1 yang didominasi jenis Sonneratia alba. Analisis regresi linear dan Akaike’s Information Criterion (AIC) menunjukkan bahwa kombinasi dari tutupan kanopi, kerapatan pohon, kerapatan pancang dan diameter pohon menjadi model terbaik dalam mengestimasi simpanan karbon pada skala komunitas. Model kombinasi ini memiliki nilai koefisien regresi tertinggi dan nilai root mean squared error (RMSE) terendah dibandingkan dengan model lainnya. Hasil penelitian diharapkan dapat digunakan dalam mengestimasi simpanan karbon secara lebih efisien dan akurat dalam skala komunitas.

Konsentrasi Logam Berat (Pb, Cu, Cd, Zn) pada Air dan Sedimen di Perairan Serangan, Bali Gede Surya Indrawan; I Nyoman Giri Putra
Metamorfosa: Journal of Biological Sciences Vol 8 No 1 (2021)
Publisher : Prodi Magister Ilmu Biologi, Fakultas MIPA, Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/metamorfosa.2021.v08.i01.p12

Heavy metal pollution can disturb aquatic ecosystems and indicator of water quality. This study aims to determine the concentration of heavy metals (Pb, Cu, Cd, Zn) in water and sediments. This study was conducted in the waters of Serangan, South Denpasar District, Bali in June-August 2019. The research with each location taking 8 points of water and sediment sampling and measuring the quality of its waters. Water samples taken at the surface of the water as much as 330 ml and sediment samples taken as much as 500 grams. The method used is wet ashing preparation and analyzed by means of AAS (Atomic Absorbsion Spektrophotometri). The results of the average analysis of heavy metal concentrations in water are Pb 0 mg / L, Cd 0.438 mg / L, Cu 0 mg./L, and Zn 0.284 mg / L. The results of the analysis are compared with the standard quality value of sea water that the heavy metals Cd and Zn have exceeded the threshold. While the average concentration of heavy metals in sediments are Pb 17.444 mg / kg, Cd 18.093 mg / kg, Cu 113.981 mg / kg, and Zn 53.505 mg / kg. The concentration of Cd and Cu heavy metals exceeds the limits set by the ANZECC / ARMCANZ quality guidelines and the Canadian Council of Ministers of the Environment.

Optimalisasi Biomassa Alga Hijau Ulva sp. Sebagai Biosorben Logam Berat Cr(VI) Anisa Dea Novianti; I Wayan Gede Astawa Karang; I Nyoman Giri Putra
Journal of Marine and Aquatic Sciences Vol 6 No 1 (2020)
Publisher : Fakultas Kelautan dan Perikanan Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/jmas.2020.v06.i01.p15

Heavy metals are dangerous pollutants because it can’t be degraded by organism or can’t accumulated in environment. Heavy metals can settles at the bottom of the waters. One of the dangerous heavy metals is Hexavalent Chromium or Cr(VI). Research on reducing heavy metal pollution is important, there are many methods that can be use to reduce heavy metal. Biosorption one of the methods which is effective and efficient for reducing heavy metal pollution because the biomaterials or biosorbent used is able to absorb metals. The purpose of this research was to determine the optimum conditions for green algae which is Ulva sp. to adsorb Cr(VI) metal ions. Utilization of algae Ulva sp. as a biosorbent can help to reduce ecological problems due to algae that can bloom and also it can minimize pollution of heavy metals Cr(VI). Based on the results of the research the optimum conditions for biosorption of Cr(VI) by Ulva sp. influenced by several parameters such as pH, biosorbent dosem initial Cr(VI) concentration and contact time. In this research the most optimal conditions for the biosorpstion of Cr(VI) using Ulva sp. as a biosorbent is at pH 2, the mass of biosorbent 10 gr, initial concentration of Cr(VI) 4 mg/L for 90 minutes. The maximum efficiencies of Cr(VI) removal was 98,88% and capacity for absorb was 0,093 mg/g.

Analisis Sebaran Total Suspended Solid (TSS) Berdasarkan Citra Landsat 8 Menggunakan Tiga Algoritma Berbeda Di Perairan Teluk Benoa, Bali Gede Yuda Kamajaya; I Dewa Nyoman Nurweda Putra; I Nyoman Giri Putra
Journal of Marine and Aquatic Sciences Vol 7 No 1 (2021)
Publisher : Fakultas Kelautan dan Perikanan Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/jmas.2021.v07.i01.p03

Total suspended solid is a suspended solid that causes turbidity in the waters. These particles cannot settle directly on the bottom of the water. TSS size and weight are smaller than sediment. TSS concentration if too high will inhibit the penetration of light into the water and result in disruption of photosynthesis. The number of human activities around the waters of Benoa Bay can produce pollutant waste into the waters which can cause negative impacts on the conditions of marine life. This TSS value is one part that plays a role in determining the environmental quality of a waters. Seeing the input from the rivers which empties into Benoa Bay, the need for research in the Benoa Bay area is related to total suspended solids. Technological developments, especially in remote sensing, make the implementation of mapping the distribution of TSS concentrations efficient. The method in this study used Landsat 8 satellite images and in situ data. This research was conducted in May 2018. The research location consisted of 30 points by purposive sampling. The TSS concentration value in situ has an average concentration of 301.65 mg / L. Middle waters have greater concentration because this is due to the effects of tides. TSS concentration values from images can be calculated using the Budhiman, Guzman and Parvati algorithms. The results of the calculation of the three algorithms have an error value above 30%. This may be due to differences in water conditions which result in differences in concentration from the insitu value and the value of satellite images in the waters of Benoa Bay.

Komposisi Jenis Dan Fluktuasi Kelimpahan Plankton Secara Temporal Di Perairan Selat Lombok Putu Maya Witariningsih; Yulianto Suteja; I Nyoman Giri Putra
Journal of Marine and Aquatic Sciences Vol 6 No 1 (2020)
Publisher : Fakultas Kelautan dan Perikanan Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/jmas.2020.v06.i01.p17

Indonesian Throughflow (ITF) is a circulation of water mass in Indonesian, water are carrying from the Pacific Ocean to the Indian Ocean. When the water mass from the Pacific Ocean to Indonesian waters will mix with the water mass of Indian Ocean. One of the outflow is the Lombok Strait. The mixing of process bring nutrient-rich in bottom layer to rise to the upper layer and it will affect the fertility. One indicator of water fertility by measuring the abundance and distribution of plankton. The aims of this study to determine the temporal of composition species and fluctuations of plankton abundance temporally in the waters of the Lombok Strait. The study was conducted in the Lombok Strait in November 2017. Data was collected at one point and sample was only take on the surface of the waters. The genus composition of the most widely found phytoplankton Bacillariophyceae class (19 genera) and from the widely obtained zooplankton Hexanauplia class (7 genera). The highest abundance of phytoplankton occurs during high tide during afternoon. This phenomenon is caused by photosynthesis of phytoplankton in the water surface. In contrast to the abundance of the highest zooplankton occurs during high tide in the early morning. This is caused by zooplankton's daily vertical migration and negative phototaxis. Comparison of phytoplankton abundance with zooplankton abundance is inversely proportional, zooplankton abundance depends on abundance of phytoplankton, because phytoplankton grow faster by cell substraction, compared to phototaxis of in zooplankton. It is also a predation of phytoplankton by zooplankton.

Deteksi Perubahan Garis Pantai Menggunakan Citra Synthetic Aperture Radar (SAR) di Pesisir Tenggara Bali (Kabupaten Gianyar dan Klungkung) Kadek Dwi Artama; I Wayan Gede Astawa Karang; I Nyoman Giri Putra
Journal of Marine and Aquatic Sciences Vol 5 No 2 (2019)
Publisher : Fakultas Kelautan dan Perikanan Universitas Udayana

Coastline change is a phenomenon caused by sediment decrease or increase in the coastal area that occurs continuously. This phenomenon is caused by abrasion, erosion, and accretion. Bali is one of the provinces that have coastal with quite noticeable conditions, which is the southeast coast of Bali, the coast of Gianyar and Klungkung Regencies. Identification of coastline changes is important to determine policies that can be taken to maintain coastal balance. Remote sensing is one way to identify coastline change. In this study, the image used is SAR images of ALOS PALSAR and Sentinel-1 satellites with a resolution of 10 meters to extract the coastlines of Gianyar and Klungkung in 2007 and 2018. Method used for shoreline extraction is Image Threshold pproach. Coastline changes analysis in this study used the Digital Shoreline Analysis System (DSAS) application. Analysis results of coastline changes in Gianyar and Klungkung for 11 years in range shown the highest erosion and accretion occurred in the Klungkung coastal with erosion area reached 168,142.05 m2, and the accretion area reached 207,531.2 m2. Coastal change in Gianyar Regency caused by erosion reached 124,930.5 m2, and the accretion area reached 85,123.86 m2. The highest change rate in Gianyar occurred in Saba village at the rate of 2.63 m/year in erosion, whereas in Klungkung it occurred in Gunaksa village reaching 13.25 m/year in accretion.

Fluktuasi Nitrat dan Fosfat Selama Satu Periode Pasang dan Surut di Selat Lombok I Gede Ening Sumantra; Yulianto Suteja; I Nyoman Giri Putra
Journal of Marine and Aquatic Sciences Vol 6 No 2 (2020)
Publisher : Fakultas Kelautan dan Perikanan Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/jmas.2020.v06.i02.p10

Nitrate (NO3-) and phosphate (PO43-) are two parameters of water quality that are important for aquatic organism. Circulation of ocean currents can distribute nitrate and phosphate from one place to another. The current pattern in the waters of the Lombok Strait at the time of the tide moves from the north to the south by bringing the mass of water from the Pacific Ocean, while the movement of the current pattern at low tide moves from south to north by bringing the mass of water from the Indian Ocean. Therefore, this study aims to determine the fluctuations of Nitrate (NO3-) and Phosphate (PO43-) in Lombok Strait during one tidal period. This research was conducted on 3 - 5 November 2017 precisely at coordinates 116?1'18 "LS; -8?34'12 "BT. Sampling is done directly in the field. Seawater samples are taken on the surface and at a depth of 10 meters for 1 x 24 hours with an interval every 2 hours using a Vertical Water Sampler. Measurement of nitrate parameter using spectrophotometric method with Spectrophotometer SNI 6989 79-2011, while phosphate parameter using spectrophotometric method with UV-Vis Spectrophotometer, refer to SNI 06-6989 31-2005. The concentration of nitrate and phosphate at each time in the analysis and seen fluctuations. The concentration of nitrate and phosphate in Lombok Strait fluctuated during one tidal period. At high tide conditions, the concentrations of nitrate and phosphate are low and at low tide conditions high nitrate and phosphate concentrations.

Spread beyond the border: Small Scale genetic structure of the introduced Banggai cardinalfish (Pterapogon kauderni) population in the Bali Strait I Nyoman Giri Putra; Ni Luh Putu Ria Puspitha; Endang Wulandari Suryaningtyas
ILMU KELAUTAN: Indonesian Journal of Marine Sciences Vol 26, No 3 (2021): Ilmu Kelautan
Publisher : Marine Science Department Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/ik.ijms.26.3.165-172

The living marine aquarium trade has been known to mediate various aquatic invaders to spread and established a new population outside of their natural home range. In most cases, the introduce species cause a cascaded effect which harm the native species and their ecosystem. The successful of the invasion event often related to the genetic properties of the introduced species. Therefore, using a molecular approach based on a mitochondrial DNA marker, the present work aimed to evaluate the population genetic structure of the introduced P. kauderni population in Bali Strait. Samples were collected from four sites in Gilimanuk Bay, Bali Strait. Our results showed a high haplotype diversity and low nucleotide diversity that might be a signal of a bottleneck. Overall, we found five haplotypes comprising two unique haplotypes and three shared haplotypes. Genetic structure was detected in some localities, which indicates Pterapogon kauderni might originated from various genetically distinct populations. However, we could not conclusively determine the observed patterns of the genetic structure within each site. These patterns are likely related to the multiple introduction event of P. kauderni in Bali Strait. Additional samples from both side (introduced and native habitat) combined with more rapidly evolving markers may describe the structure more clearly.

Redefining Dispersal Boundaries of Siganus fuscescens In The Coral Triangle Area Ni Putu Dian Pertiwi; Nur Ismu Hidayat; Chloe Henderson; I Nyoman Giri Putra; Andrianus Sembiring
ILMU KELAUTAN: Indonesian Journal of Marine Sciences Vol 24, No 1 (2019): Ilmu Kelautan
Publisher : Marine Science Department Diponegoro University

The increasing demand of fish in the Coral Triangle Area has led to overexploitation of some species of fishes. One of the commercial fishes, which is also known to be the source of food and income for local communities, is the Mottled Spinefoot (Siganus fuscescens). Population studies on this species are important in order to manage sustainable stock populations. Genetic variation of the mitochondrial DNA was analyzed to examine the population structure of Siganus fuscescens in Indonesia, as part of the Coral Triangle Area. In total, 789 basepairs of control region mtDNA sequences were determined from 133 specimens collected from six localities, including Seribu Islands (n=27), Karimunjawa (n=19), Komodo (n=39), Selayar (n=20), Lembeh (n=19) and Luwuk (n=9). From the data, 27 variable sites and 24 haplotypes were detected, with most of the haplotypes unique to each location. Haplotype data show that one haplotype was shared among all populations, three haplotypes were shared between two populations (Komodo & Selayar; Lembeh & Seribu; Komodo & Karimunjawa), and 20 were unique to a single population. Haplotype diversity (h=0.444) and nucleotide diversity (π=0.00165) were low. The diversity result, i.e. the ΦST value (0.0658, P < 0.0001) revealed genetic structure in S. fuscescens populations in Indonesia. A non-dispersal strategy led to restricted gene flow and genetic structuring in S. fuscescens. However, both the neutrality test and the mismatch distribution indicated that S. fuscescens might have been in populations at demographic equilibrium, with restriction to the population expansion. Although indicating unexpected minor population structure pattern, the overall result still suggest the management of this species population as a single unit across Indonesia.

Recent Invasion of the Endemic Banggai Cardinalfish, Pterapogon kauderni at The Strait of Bali: Assessment of the Habitat Type and Population Structure I Nyoman Giri Putra; I Dewa Nyoman Nurweda Putra
ILMU KELAUTAN: Indonesian Journal of Marine Sciences Vol 24, No 1 (2019): Ilmu Kelautan
Publisher : Marine Science Department Diponegoro University

The demands of marine organisms for the aquarium trade are remain high and seems continue to increase. Consequently, many of marine organisms has been spread out from its natural habitat as in the case of endemic Banggai cardinalfish, (Pterapogon kauderni). That has invaded “new” habitat since it being trade in 1995. In recent years, a small populations of P. kauderni is known to be exist in a narrow bay near the Gilimanuk harbor, Bali. An underwater visual fish census survey was conducted on June 2018 to estimate the habitat types and densities of P. kauderni. Additionally, 23 specimens of P. kauderni were collected randomly in order to assess biological parameters such as the length-weight relationship. We successfully recorded 30 groups of P. kauderni that inhabit a shallow areas with a depth range between 0.5m to 2m. Of these, more than 90% of the groups were found to be associated with sea urchin (Diadema sp.) while the rest were found to live together with branching coral (Acropora sp.) and branching sponge (Ptylocaulis sp.). Total number of fish observed during the survey were 381 individuals. The fish density is 0.76 individu.m-2. Length-weight relationship showed that P. kauderni exhibit is negative allometry (b<3) which mean that the increase in length is faster than the weight gain. Interestingly, from the 23 specimens collected, none of these were sexually mature (SL<41 mm) which may indicated that the population of P. kauderni in Bali are under serious threats of exploitation.

Co-Authors Alanis Ismi Akasia Andrianus Sembiring Andrianus Sembiring Andrianus Sembiring Andrianus Sembiring Anisa Dea Novianti Astria Yusmalinda Astria Yusmalinda Atmaja, Putu Satya Pratama Bertha Ayu Andhira Casamira Gitta Prasetyo Chloe Henderson Dandi Saleky Danie Al Malik Danie Al Malik Demianus Hukom, Frensly Dewa Ayu Wedha Astiti Dicky Septiady Dwi Budi Wiyanto Eka Andiani, Anak Agung Elok Faiqoh Elok Faiqoh Endang Wulandari Suryaningtyas Franceska Kendra Rossa S Gabrielle Aisya Gede Surya Indrawan Gede Surya Indrawan Gede Yuda Kamajaya Gilang Pratama I Dewa Nym. Nurweda P., I Dewa Nyoman Nurweda Putra I Gede Ening Sumantra I Gede Hendrawan I Gede Hendrawan I Gede Panji Agung Purnomo I Gusti Bagus Sila Dharma I Gusti Ngurah Putra Dirgayusa I Gusti Putu Bayu Arri Putra I Gusti Sila Dharma I Ketut Suta Negara I Putu Sugiana I Putu Yogi Darmendra I Wayan Arthana I Wayan Eka Dharmawan I Wayan Gede Astawa Karang IDA AYU ASTARINI Irman Rumengan Kadek Dwi Artama Kadek Widya Suryaningsih Ketut Popi Anjani Devi Luh Astria Yusmalinda M. Danie Al Malik Ni Luh Putu Emi Trisna Dewi Ni Luh Putu Ria Puspitha Ni Putu Dian Pertiwi Ni Putu Dian Pertiwi Ni Putu Putri Wijayanti Nikmah Fitria Nuraini Nur Ismu Hidayat Nurdyputra, I Gusti Ngurah Galih Ksatria Mahadhika Nyoman Dati Pertami Paul Helga Fernandez Potje, Emilian Ivarlyano Priscilla Princessa Amalo Putra Bagus Panji Pamungkas Putu Dian Pertiwi Putu Dian Pertiwi Putu Maya Witariningsih Rowand Danny Sebastian Adinegoro Sartika Ristama Silitonga Septi Novita Sari Shella Ayu Ardiana Simon P.O Leatemia Stephanus Tambunan Suryany Devy Wiratama, I Gusti Ngurah Made Yuanike Yuanike Yulianto Suteja

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