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All Journal ILMU KELAUTAN: Indonesian Journal of Marine Sciences BULETIN OSEANOGRAFI MARINA BERKALA FISIKA JURNAL SISTEM INFORMASI BISNIS Journal of Marine Research Journal of Tropical Soils Gaung Informatika TELKOMNIKA (Telecommunication Computing Electronics and Control) Jurnal Teknik Elektro Rekayasa: Jurnal Penerapan Teknologi dan Pembelajaran Indonesian Journal of Cancer Chemoprevention Jurnal Riset Kesehatan AGRIVITA, Journal of Agricultural Science Indonesian Journal of Tropical and Infectious Disease SPASIAL Majalah Kedokteran Gigi Indonesia Scientific Journal of Informatics ODONTO Dental Journal Semesta Teknika Jurnal Kelautan Tropis Orbith : Majalah Ilmiah Pengembangan Rekayasa dan Sosial Profetika Proceeding of the Electrical Engineering Computer Science and Informatics Edu Elektrika Journal Edu Komputika Journal Molecular and Cellular Biomedical Sciences (MCBS) Jurnal AKP Jurnal Ilmiah Universitas Batanghari Jambi INDONESIAN JOURNAL OF APPLIED PHYSICS Indonesian Journal of Islamic Educational Management Jurnal Arsitektur ARCADE Indonesian Journal of Cardiology Jurnal Pembangunan Berkelanjutan Indonesian Food Science and TechnologyJournal Proceedings of the International Conference on Applied Science and Health IJID (International Journal on Informatics for Development) Jurnal Segara JURNAL MERCATORIA Jurnal Ilmiah Mandala Education (JIME) IJoASER (International Journal on Advanced Science, Education, and Religion) Jurnal Respirologi Indonesia J-Dinamika: Jurnal Pengabdian Kepada Masyarakat Jurnal Ilmiah Membangun Desa dan Pertanian Kumawula: Jurnal Pengabdian Kepada Masyarakat International Journal of Financial, Accounting, and Management Journal of Tropical Marine Science PRIMA: Journal of Community Empowering and Services Generation Journal Abdi Masyarakat Journal of Telenursing (JOTING) Abdimas Galuh: Jurnal Pengabdian Kepada Masyarakat Budimas : Jurnal Pengabdian Masyarakat Heart Science Journal INCARE JURNAL ABDIMAS TRIDHARMA MANAJEMEN Journal of Electrical Engineering and Computer (JEECOM) PROFESSIONAL HEALTH JOURNAL Narra J Jurnal Saintekom : Sains, Teknologi, Komputer dan Manajemen SRIWIJAYA JOURNAL OF ENVIRONMENT ProBisnis : Jurnal Manajemen Jurnal Bina Desa COMSERVA: Jurnal Penelitian dan Pengabdian Masyarakat Teknika Jurnal Al-Qiyam Jurnal Tana Mana Mimbar Pendidikan Indonesia YASIN: Jurnal Pendidikan dan Sosial Budaya Journal of Artificial Intelligence and Digital Business Research Trend in Technology and Management Innovative: Journal Of Social Science Research Riset Informasi Kesehatan Odonto dental journal International Journal of Health and Information System (IJHIS) Bisma : Business and Management Journal Jurnal Pengabdian Masyarakat Pinang Masak Sabua : Jurnal Lingkungan Binaan dan Arsitektur Jurnal Pelayanan dan Pengabdian Kesehatan untuk Masyarakat Jurnal Pengabdian Sosial Depik Jurnal Ilmu-Ilmu Perairan, Pesisir, dan Perikanan Indonesian Journal of Muhammadiyah Studies (ijmus) Jurnal Polimesin Biosaintifika: Journal of Biology & Biology Education Jurnal Ilmiah Multidisiplin Journal of Indonesian Progressive Education Jurnal Arsitektur ARCADE KARIR Jurnal Ilmiah Manajemen Mantis Journal of Fisheries Folia Medica Indonesiana

Suryono Suryono

Department Of Marine Science, Faculty Of Fisheries And Marine Science, Diponegoro University

Author-ID : 395493

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WCLOUDVIZ: Word Cloud Visualization of Indonesian News Articles Classification Based on Latent Dirichlet Allocation Retno Kusumaningrum; Satriyo Adhy; Suryono Suryono
TELKOMNIKA (Telecommunication Computing Electronics and Control) Vol 16, No 4: August 2018
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/telkomnika.v16i4.8194

Latent Dirichlet Allocation (LDA) is a widely implemented approach for extracting hidden topics in documents generated by soft clustering of a word based on document co-occurrence as a multinomial probability distribution over terms. Therefore, several visualizations have been developed, such as matrices design, text-based design, tree design, parallel coordinates, and force-directed graphs. Furthermore, based on a set of documents representing a class (category), we can implement classification task by comparing topic proportion for each class and topic proportion for the testing document by using Kullback-Leibler Divergence (KLD). Therefore, the purpose of this study is to develop a system for visualizing the output of LDA as a classification task. The visualization system consists of two parts: bar chart and dependent word cloud. The first visualization aims to show the trend of each category, while the second visualization aims to show the words that represent each selected category in a word cloud. This visualization is subsequently called WCloudViz. It provides clear, understandable and preferably shared the result.

OPTIMALISASI CITRA MSCT TRAKTUS URINARIUS MENGGUNAKAN TRACKING DENGAN VARIASI SLICE THICKNESS DAN WINDOW SETTING Nanang Sulaksono; Suryono Suryono; Jeffri Ardiyanto
Jurnal Riset Kesehatan Vol 5, No 1 (2016): Mei 2016
Publisher : Poltekkes Kemenkes Semarang

Kidney disease is a clinical situation which is indicated by the decreasing of kidney functions and MSCT is one of the modalities to diagnose that function. The research was aimed to prove that the use of Tracking with variation in Slice Thickness and window setting was able to produce an optimal image after contrast value analysis was conducted. The method was the experimental research using research planning Pretest-Posttest Control Design. The sampling was chosen consecutively. There were 3 Radiolog and 21 patients on the examination of MSCT abdomen without positive contrast media in Salatiga Public Hospital. The research was conducted from May to July 2015. Research Results, the intervention validity experiment before and after using Tracking with Paired T-Test statistic experiment showed p value 0,000. There were some significant differences. Through Mann Whitney experiment, it was found that there was different result of p value 0,000 (p less than 0,05). There were significant differences in each group. It can be Concluded that The significant difference before and after using Tracking shows that Tracking can be used as an alternative for MSCT uroraphy examination.

Aplikasi Perbedaan Komposisi N, P dan K pada Budidaya Eucheuma cottonii di Perairan Teluk Awur, Jepara Edi Wibowo Kushartono; Suryono Suryono; Endah Setiyaningrum
ILMU KELAUTAN: Indonesian Journal of Marine Sciences Vol 14, No 3 (2009): Jurnal Ilmu Kelautan
Publisher : Marine Science Department Diponegoro University

Rumput laut (Eucheuma cottonii) merupakan salah satu hasil laut yang memiliki nilai ekonomis tinggi yang ditunjukkan dengan meningkatnya permintaan dalam berbagai bentuk sehingga diperlukan adanya usaha peningkatan produksinya. Studi aplikasi pupuk N, P dan K dengan konsentrasi yang berbeda telah dilakukan pada usaha budidaya rumput laut tersebut melalui eksperimental lapangan, dengan Rancangan Acak Lengkap. Bibit E.cottonii direndam dalam pupuk selama 15 menit sebelum ditanam dengan sistim rakit. Terdapat lima kombinasi komposisi N, P, dan K yaitu 10:55:10; 15:15:15; 46:0:0; 60:20:10; dan Kontrol (tanpa direndam dalam pupuk). Bobot awal bibit rumput laut adalah 80 gram dan pengamatan pertumbuhan berat mingguan dilakukan selama 5 minggu. Hasil pengamatan menunjukkan bahwa rerata bobot total dan laju pertumbuhan tertinggi dicapai pada perlakuan perbandingan N,P dan K 60:20:10 yaitu 543,33 gram dan 5,47 % dan yang terendah adalah 326,67 gram dan 4,02 % yang dicapai perlakuan perbandingan N,P dan K sebesar 10:55:10 Kata kunci : Euchema cottonii, N, P, K, pertumbuhan Eucheuma cottonii, seaweed, is one of marine products with high economic value which can be seen from increasing market demand. The study of using different commercial fertilizer in seaweed aquaculture is one of possible effort to increase seaweed production. The method used in this research was experimental applying randomized complete design. All samples are deeped for 15 minutes in different composition of NPK fertilizers before cultivated in floating raft method. The treatments are NPK ratio of 10:55:10; 15:15:15; 46:0:0; 60:20:10 and without fertilizer as control. Seaweed mass for cultivation was 80 grams observe at every week during five week. The observation result show that the highest average of total biomass reached and Survival growth rate at NPK ratio treatment 60:20:10 is 543.33 grams and 5,47 % ,and the lowest is 326.67 grams 4,02 % reached by N, P, and K ratio treatment was 10:55:10 Key words : Euchema cottonii, N, P, K, growth

Profil Pigmen Polar dan Non Polar Mikroalga Laut Spirulina sp. dan Potensinya sebagai Pewarna Alami (Profile of Polar and Non-Polar Pigment from Marine Microalgae Spirulina sp. and Their Potential as Natural Coloring) Sri Sedjati; Ervia Yudiati; Suryono Suryono
ILMU KELAUTAN: Indonesian Journal of Marine Sciences Vol 17, No 3 (2012): Ilmu Kelautan
Publisher : Marine Science Department Diponegoro University

Penelitian pigmen Spirulina sp. dilakukan untuk menentukan kandungan pigmen polar dan non polar dari Spirulina sp. dengan metode Spektroskopi UV-Vis. Pigmen polar diekstraksi dengan menggunakan larutan buffer fosfat (NaOH-KH2PO4) pH 7, sedangkan pigmen non polar diekstraksi dengan menggunakan aseton murni. Hasil penelitian menunjukkan bahwa pigmen polar berwarna biru dan kadarnya adalah sebesar 42,272±0,05 mg/g (berat kering), pigmen ini terdiri dari fikosianin (29,159±0,29 mg/g), allofikosianin (9,363±0,20 mg/g), dan fikoeritrin (3,750±0,09 mg/g). Warna pigmen non polar adalah hijau terang dan kadarnya sebesar 4,498±0,06 mg/g (berat kering), pigmen ini terdiri dari klorofil a (3,349±0,03 mg/g) dan karotenoids (1,158±0,03 mg/g). Ekstrak pigmen polar Spirulina sp. kadarnya lebih tinggi dibanding pigmen non polarnya. Pigmen fikosianin berpotensi dikembangkan sebagai bahan aditif pewarna biru alami, karena: kadarnya paling tinggi, menghasilkan warna biru cerah dan cemerlang, bersifat nutrisi fungsional dan tidak beracun.Kata kunci: Spirulina sp., polar, non polar, pigmen, alamiResearch on pigments from Spirulina sp. powder has been done in order to determine polar and non polar pigments content by UV-Vis Spectroscopy method. Polar pigments were extracted using phosphate buffer (NaOH-KH2PO4) pH 7, while non polar pigments were extracted using pure aseton. The result showed that colour of polar pigment was dark blue and its content was 42,272±0,05 mg/g (dry weight), these pigments consist of phycocyanin (29,159±0,29 mg/g), allophycocyanin (9,363±0,20 mg/g), and phycoerythrin (3,750±0,09 mg/g). The colour of non polar pigment was light green and its content was 4,498±0,06 mg/g (dry weight), these pigments consist of chlorophyll a (3,349±0,03 mg/g) and carotenoids (1,158±0,03 mg/g). Due to the high content of pigments from Spirulina sp, showing a bright blue colour, having functional nutrition, and non toxic, the polar pigment phycocyanin have been found suitable for use as additif natural blue colorant.Key word: Spirulina sp., polar, non polar, pigment, natural

Bioecology of coral reef in Panjang Island of Central Java Indonesia Suryono Suryono; Ambariyanto Ambariyanto; Munasik Munasik; Diah Permata Wijayanti; Raden Ario; Ibnu Pratikto; Nur Taufiq-Spj; Syahrial V. Canavaro; Tiara Anggita; Bayu Kreshna Adhitya Sumarto; Justin Cullen
ILMU KELAUTAN: Indonesian Journal of Marine Sciences Vol 26, No 2 (2021): Ilmu Kelautan
Publisher : Marine Science Department Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/ik.ijms.26.2.125-134

Coral reefs currently are suffered from natural factors along with increasing anthropogenic activity. Panjang Island, a small reef island located in Jepara Regency, may also be experiencing such conditions. Therefore, this work was aimed to observe the condition of the coral cover of Panjang Island. Line intercept transect was applied to survey the coral cover and mortality index from fourteen stations. Insitu data consisted of the bottom substrate composition of the reefs and the physical parameters of the sea. The secondary data, i.e. coral reef area maps from 2001 to 2019 were taken from Landsat Image 7 and 8, data of wind were obtained from www.ogimet.com, while tidal data were collected from BMKG. The bathymetry was determined from the Geospatial Information Agency data, salinity global analysis forecast Phy 001.024 (CMEMS). Sea surface temperature (SST), and chlorophyll-a distribution were analyzed using ENVI software. The result showed that Panjang Island has a poor to the moderate condition of hard coral. Two out of six categories of abiotic and dead coral were found to be high. The mortality index of coral was in the high category (average 0.52). During research periods the sea waters were characterized by high sea surface temperature (29.34-30.94°C), chlorophyll-a was also tended to be high (0-2.65 mg.m-3), and an average of salinity was high 32 ‰. The weak currents came to all sides of the island, therefore the coral reef was not exposed to extreme currents. The waves came from the east, then the energy decreases after being blocked by coral reefs on the eastern side of the island, so that coral reefs in the northeast and south sides were safer to be exposed. The results suggest that hydrodynamic ecology directly or indirectly affected the percentage of coral cover and mortality index at the reefs of Panjang Island.

Hidrodinamika Gelombang pada Terumbu Karang di Pulau Panjang, Jepara Suryono Suryono; Ambariyanto Ambariyanto; Munasik Munasik; Denny Nugroho Sugianto; Raden Ario; Ibnu Pratikto; Nur Taufiq-Spj; Syahrial Varrel Canavaro; Tiara Anggita
Buletin Oseanografi Marina Vol 10, No 3 (2021): Buletin Oseanografi Marina
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/buloma.v10i3.36368

Posisi Pulau Panjang berada di sisi barat garis pantai pesisir kota Jepara, menjadikannya sebagai penghalang (barrier) terhadap gelombang yang akan menghantam pesisir Jepara. Pulau Panjang dikelilingi oleh gugusan terumbu karang. Keterpaparan (exposure) terumbu karang oleh hidrodinamika gelombang yang melewatinya perlu dikaji. Oleh sebab itu, dibutuhkan penelitian mengenai hidrodinamika gelombang pada terumbu karang di perairan Pulau Panjang. Hasil penelitian didapatkan bahwa nilai gelombang yaitu gelombang signifikan (Hs), periode gelombang signifikan (Ts) adalah bervariasi. Nilai gelombang (Hs dan Hs) tinggi, akan mengakibatkan terumbu karang pada sisi barat, timur laut dan tenggara Pulau Panjang lebih menerima keterpaparan (ekposure) oleh hidrodinamika gelombang yang melewatinya. Pada hidrodinamika gelombang lebih rendah, maka terumbu karang yang terlindung dari keterpaparan (ekposure) gelombang adalah yang berada pada sisi timur, barat daya, dan barat laut. Hasil interpolasi (Krigging) didapatkan hasil nilai Hs tertinggi berkisar antara 0,503-1,00. Arah datang gelombang dominan dari timur pulau Panjang, kemudian setelah melewati terumbu karang ada di sisi timur ,timur laut, dan utara Pulau Panjang maka energinya menjadi berkurang, sehingga terumbu karang yang ada di sisi barat, barat daya, dan selatan dari Pulau Panjang posisinya lebih aman dari keterpaparan (ekposure) oleh hidrodinamika gelombang yang melewatinya. Gelombang yang datang akan mengalami perubahan karakteristik (panjang, periode, tinggi gelombang) setelah melewati terumbu karang, sehingga gelombang yang menuju pantai akan semakin berkurang seiring dengan perubahan kedalaman. Tingkat keterpaparan (ekposure) terumbu karang yang ada pada sisi timur,timur laut dan utara di Pulau Panjang oleh gelombang cukup tinggi, hal ini diduga yang menjadi salah satu faktor penyebab kerusakan terumbu karang yang ada diperairan Pulau Panjang. The position of Pulau Panjang is on the west side of the coastal coastline of the city of Jepara, making it a barrier against waves that will hit the coast of Jepara. Panjang Island is surrounded by clusters of coral reefs. The exposure (exposure) of coral reefs by the hydrodynamics of the waves that pass through them needs to be studied. The modeling results are then generated into a shapefile map to be overlaid with a shapefile map of changes in coral reefs by interpolation method with Kriging block. The results showed that the wave value, namely the significant wave (Hs), the period of the significant wave (Ts) varied. High wave values (Hs and Hs) will result in coral reefs on the west, northeast, and southeast sides of Panjang Island receiving more exposure (exposure) by the hydrodynamics of the waves that pass through them. At lower wave hydrodynamics, the coral reefs that are protected from wave exposure are those on the east, southwest, and northwest sides. The results of interpolation (Kriging) obtained the highest Hs values ranging from 0.503 to 1.00. The direction of the dominant wave coming from the east of Panjang Island, then after passing through the coral reefs is on the east, northeast, and north of Panjang Island, the energy is reduced, so that the coral reefs on the west, southwest, and south sides of Panjang Island are safer from exposure (exposure) by the hydrodynamics of waves that pass through it. The incoming waves will experience changes in characteristics (length, period, wave height) after passing through the coral reef so that the waves towards the coast will decrease along with changes in depth. The level of exposure to coral reefs on the east, northeast, and north sides of Panjang Island by waves is quite high, this is thought to be one of the factors causing damage to coral reefs in the waters of Panjang Island.

Struktur Komunitas Rumput Laut di Perairan Pasir Panjang Desa OlibuuKabupaten Boalemo, Gorontalo Edi Wibowo; Raden Ario; Suryono Suryono; Nur Taufiq; Destalino Destalino
Buletin Oseanografi Marina Vol 7, No 1 (2018): Buletin Oseanografi Marina
Publisher : Universitas Diponegoro

Rumput laut atau seaweed termasuk tumbuhan berthallus yang banyak dijumpai hampir di seluruh pantai Indonesia, terutama wilayah pantai yang mempunyai rataan terumbu karang. Perbedaan mendasar sistem hidupnya dengan tumbuhan darat adalah dalam pengambilan zat-zat makanan. Tumbuhan darat sangat bergantung pada akar sebagai alat pengambil/ penyerap zat hara dari substrat, sedangkan rumput laut menyerap zat hara yang dibutuhkan bagi pertumbuhannya dari medium air dengan cara difusi melalui permukaan substansi fisiknya.Penelitian ini bertujuan untuk mengetahui struktur komunitas rumput laut di perairan Pasir Panjang Pulau Limbah, Kecamatan Paguyaman Pantai, Kabupaten Boalemo, Provinsi Gorontalo. Metoda penelitian yang digunakan adalah bersifat diskriptif.Adapun pengumpulan data dilakukan dengan metode sample survey methods. Hasil penelitian menunjukan bahwa perairan Pulau Limbah di dominasi oleh Rumput Laut Coklat dengan kelimpahan tertinggi Padina australis. Nilai Indeks Keanekaragaman (H’) Rumput Laut tertinggi terdapat pada stasiun C dengan nilai rerata: 1,854 dan yang terendah pada Stasiun A dengan nilai rerata: 1,469. Nilai Indeks Keseragaman (E) nilai tertinggi terdapat pada Stasiun C dengan nilai rerata: 0,679 dan terendah pada stasiun A dengan nilai rerata: 0,668. Nilai indeks Dominansi (C) tertinggi terdapat pada Stasiun A dengan nilai rerata : 0,251 dan nilai terendah stasiun B dengan nilai rerata: 0,187. Analisis Ragam (Anova) menunjukan bahwa stasiun penelitian memberikan perbedaan yang nyata (P≤0,05) terhadap nilai Indeks Keanekaragaman (H’), Indeks Keseragaman (E) serta Indeks Dominasi (C). Seaweed including thallus plants that are found almost all over the coast of Indonesia, especially on beaches that have coral reefs. Seaweed is a photosynthetic organism as well as plants on land. The fundamental difference of his life system is in the taking of food substances. Ground plants realy heavily on roots as a nutrient removal device from the substrate, while seaweed absorbs the nutrients needed for its growth from the water medium by diffusion through the surface of its physical substance. This study aims to determine the structure of seaweed communities in Limbah Island Waters, District Paguyaman Beach. The results showed that the waters of Limbah Island is dominated by brown seaweed with the highest species abundance was Padina australis. The highest index value of Seaweed diversity (H’) was found at station C with average: 1,854 and the lowest at station A with a mean of: 1,469. For uniformity index value (E) the highest value is at station C with average: 0,679 and the lowest at station A with a mean of: 0,668. The highest index value of dominance (C) is at station A with a mean of: 0,251 and the lowest value at station B with a mean of: 0,187. The result of the analysis of variance (Anova) showed that the research station give a significant difference (P≤0,05) to the Diversity Index (H’), Uniformity Index (E) and Domination Index (C).

Hubungan Panjang Berat Teripang Holothuria atra di Pulau Panjang, Jepara Primaswatantri Permata; Suryono Suryono; Frijona F. Lokollo; Widianingsih Widianingsih; Hadi Endrawati; Muhammad Zainuri; Retno Hartati
Buletin Oseanografi Marina Vol 10, No 2 (2021): Buletin Oseanografi Marina
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/buloma.v10i2.36380

Holothuria atra merupakan salah satu teripang dan sering dijumpai berasosiasi dengan padang lamun dan substrat pasir. Walaupun bernilai ekonomi rendah, secara ekologi mempunyai manfaat sebagai bioturbator dan mempunyai potensi dalam bidang farmaseutical. Teripang ini ditenukan hidup di Pulau Panjang, dengan karakteristik perairan tertutup dan dangkal dengan akses yang mudah untuk wisatawan maupun perikanan tangkap yang dapat menjadi tekanan bagi populasi teripang tersebut. Penelitian ini bertujuan untuk untuk mengetahui hubungan panjang dan berat populasi teripang H. atra di Pulau Panjang, Jepara pada lokasi padang lamun dan pecahan karang dimana H. atra banyak ditemukan. Metode penelitian yang dipergunakan adalah metode deskriptif eksploratif dengan melakukan pengambilan sampel H. atra dengan teknik sampling complete enumeration pada luas lokasi penelitian yang telah ditentukan. Hasil penelitian menunjukkan kepadatan teripang di stasiun padang lamun (Stasiun A) lebih rendah dengan distribusi ukuran yang lebih kecil daripada di stasiun pecahan karang (Stasiun B). Pada semua stasiun dan waktu pengambilan sampel, pola pertumbuhan relatif yang ditunjukkan oleh hubungan panjang dan berat teripang H. atra bersifat allometrik negatif dengan keeratan hubungan yag sangat kecil. Hal ini disebabkan oleh kesulitan pengukuran pada teripang yang bertubuh lunak dengan elastisitas dinding tubuh (integument), isi pada sistem pencernaan makanannya dan kandungan cairan coelomic (rongga tubuh) yang dapat membuat bias analisa.Holothuria atra is one of species sea cucumbers often found in association with seagrass beds and sand substrates. Although it has low economic value, ecologically it has benefits as a bioturbator and has potential in the pharmaceutical. It is found in Panjang Island, which has characteristic of closed and shallow waters with easy access for tourists and capture fisheries which can put pressure on the sea cucumber population. This study aimed to determine the relationship between length and weight of H. atra population in the seagrass bed and rubble area in Panjang Island, Jepara. The research method used is descriptive exploratory and H. atra were sampled using a complete enumeration sampling technique at a predetermined area of the research location. The results showed that the density of sea cucumbers at the seagrass beds station (Station A) was lower with a smaller size distribution than at the rubble station (Station B). At all stations and sampling times, the relative growth pattern shown by the correlation between length and weight of H. atra is negative allometric with very small relationship value. This was due to the difficulty of measuring soft-bodied sea cucumbers with the elasticity of the body wall (integument), the contents of the digestive system and coelomic fluid in the body cavity which can bias the analysis.

Efektivitas Gracilaria gigas sebagai Biofilter Logam Berat Tembaga (Cu) pada Media dengan Salinitas yang Berbeda Yovita Noor Hidayah; Endang Supriyantini; Suryono Suryono
Buletin Oseanografi Marina Vol 8, No 2 (2019): Buletin Oseanografi Marina
Publisher : Universitas Diponegoro

Limbah hasil kegiatan industri dan pertanian memberikan efek negatif pada ekosistem perairan laut, seperti logam berat Cu. mempunyai potensi toksisitas yang tinggi terhadap lingkungan perairan. Dinding sel Gracilaria gigas memiliki polisakarida yang mampu menyerap logam Cu. Tujuan penelitian ini untuk mengetahui kemampuan daya absorpsi Gracilaria gigas terhadap logam Cu dalam media pemeliharaan dengan salinitas berbeda. . Metode yang digunakan adalah eksperimental laboratoris, menggunakan rancangan acak lengkap (RAL) dan 3 pengulangan setiap perlakuan. Perlakuan menggunakan 5 tingkat salinitas yaitu 10, 20, 25, 30, dan 40 ‰ dengan pemeliharaan selama 28 hari. Hasil penelitian menunjukkan bahwa perlakuan salinitas yang berbeda tidak berpengaruh terhadap penyerapan logam berat Cu oleh Gracilaria gigas (p>0,05). Konsentrasi logam berat Cu dalam media pemeliharaan tertinggi pada perlakuan E (40 ‰) dengan rerata nilai 0,11; 0,10; 0,13; dan 0,17 ppm. Kapasitas penyerapan logam Cu oleh Gracilaria gigas tertinggi terdapat pada hari ke 7 perlakuan A (25 ‰) dengan nilai rerata 0,007 mg/g dan efektivitas penyerapan sebesar 82,77 %. Berat basah G. gigas tertinggi terjadi pada hari ke 7 dengan rerata nilai A (25 ‰) 227,11 g; B (10 ‰) 240,55 g; C (20 ‰) 236,44 g; D (30 ‰) 221,44 g; dan E (40 ‰) 203,77 g. Berat mutlak dan laju pertumbuhan spesifik (SGR) tertinggi terdapat pada perlakuan E (40 ‰), yaitu -34,22 g dan -0,70% per hari. Semakin tinggi salinitas, maka pertumbuhan G. gigas akan semakin rendah sehingga akan mempengaruhi daya absorpsi logam Cu. Waste from industrial and agricultural activities has a negative effect on marine aquatic ecosystems, such as heavy metals Cu has a high potential for toxicity to the aquatic environment. The cell wall of G. gigas has polysaccharides which are able to absorb Cu metal. The purpose of this study was to determine the ability of G. gigas absorption to Cu metal in maintenance media with different salinity. . The method used is an experimental laboratory, using a completely randomized design (CRD) and 3 repetitions of each treatment. The treatment uses 5 levels of salinity namely 10, 20, 25, 30, and 40 ‰ with maintenance for 28 days. The results showed that different salinity treatments did not affect the absorption of heavy metal Cu by G.gigas (p> 0.05). The highest concentration of heavy metal Cu in the maintenance media at treatment E (40 ‰) with a mean value of 0.11; 0.10; 0.13; and 0.17 ppm. The highest absorption capacity of Cu by G. gigas was on the 7th day of treatment A (25 ‰) with an average value of 0.007 mg / g and the effectiveness of absorption of 82.77%. The highest wet weight of G. gigas occurred on the 7th day with an average value of A (25 227) 227.11 g; B (10 ‰) 240.55 g; C (20 ‰) 236.44 g; D (30 ‰) 221.44 g; and E (40 203) 203.77 g. The highest absolute weight and specific growth rate (SGR) was found in treatment E (40 ‰), which was -34.22 g and -0.70% per day. The higher the salinity, the growth of G. gigas will be lower so that it will affect the absorption of Cu metal.

Komposisi dan Tutupan Kanopi Mangrove di Kawasan Ujung Piring Kabupaten Jepara Muhamad Rizky Mauludin; Ria Azizah; Rudhi Pribadi; Suryono Suryono
Buletin Oseanografi Marina Vol 7, No 1 (2018): Buletin Oseanografi Marina
Publisher : Universitas Diponegoro

Mangrove yang ada di Kawasan Ujung Piring berada di Desa Jambu, Kecamatan Mlonggo Kabupaten Jepara, merupakan salah satu kawasan hutan mangrove yang berada di Pesisir Pantai Utara Pulau Jawa. Tujuan dari penelitian ini adalah untuk menganalisis persentase tutupan kanopi mangrove di Kawasan Ujung Piring Kabupaten Jepara. Metode yang digunakan dalam penelitian ini adalah metode deskriptif. Penentuan lokasi menggunakan purposive sampling sedangkan metode penutupan mangrove menggunakan Hemispherical Photography yang merupakan suatu metode fotografi yang digunakan untuk menghitung luasan tutupan kanopi menggunakan kamera dari bawah kanopi pohon. Penelitian ini dilakukan pada bulan Januari – Februari 2017, lokasi penelitian berada di dalam Kawasan Ujung Piring di Desa Jambu Kecamatan Mlonggo, Kabupaten Jepara. Terdapat 3 lokasi yaitu Jambu (JBU), Blebak (BLB), dan Sekuro (SKU) yang terdiri dari 8 stasiun. Hasil dari penelitian ini Komposisi mangrove di Kawasan Ujung Piring Kabupaten Jepara ditemukan 23 Spesies di dalam dan diluar transek dan tutupan kanopi berkisar58,15 ± 7,75% - 80,41 ± 4,25 % dengan tutupan kanopi tertinggi terdapat di JBU 01 dengan status padat dengan tutupan 80,41 ± 4,25 % dan persentase terendah pada BLB 02 dengan tutupan 58,15 ± 7,75% dengan status sedang. Dari 8 stasiun, persentase tutupan yang berstatus sedang lebih mendominasi dibandingkan status yang lain. Mangrove in Ujung Piring area located in Jambu Village, Mlonggo Sub-district of Jepara Regency, is one of the mangrove forest area located in the North Coast of Java Island. The purpose of this research is to analyze the percentage of mangrove canopy area in Ujung Piring area of Jepara regency. The method used in this research is descriptive method. Determination of location using purposive sampling while mangrove canopy are was using Hemispherical Photography method which is aimed to calculate the area of canopy area using camera from under canopy of tree. This research was conducted in January – February 2017, the research location is inside Ujung Piring Area in Jambu Village Mlonggo Sub-district, Jepara Regency. There are 3 locations namely Jambu (JBU), Blebak (BLB), and Sekuro (SKU) consisting of 8 stations. Result of this research Mangrove composition in Ujung Piring area Jepara regency found 23 species inside and outside transect and canopy range of 58,15 ± 7,75% - 80,41 ± 4,25 % with the highest canopy cover found on JBU 01 with solid status with 80,41 ± 4,25% cover and the lowest percentage in the BLB 02 with a cover of 58,15 ± 7,75% with medium status. Of the 8 stations, the percentage of cover that status is more dominant than other status.

Co-Authors A'yun, Ana Qurrota A.A. Ketut Agung Cahyawan W Abd. Rasyid Syamsuri Abdul Latif Mahakar Abdul Qodir Abdul Qodir Achmad Widodo Addion Nizori Adi Priyo Wicaksono, Adi Priyo Adi Santosa Adi Santoso Adi Wahyu Romariardi Adi Wisaksono Afriani Afriani Agung Nugroho Setiawan Agung Wibowo Agus Indarjo Agus Pahrudin Agus Suyanto Agus Syafrudin Agusalim, Imam Dui Ahmad Firyal Adila Ahmad Rayyis Ahmad Syaify, Ahmad Ain, Rahmayani Kurnia Ainun Jariyah Aisyi, Nur Rahaddatul Aji, Achmad Fahrul Aldo Rizqi Arinianzah Algopeng, Zozi Ali Djunaedi Ali Ridlo Ambariyanto Ambariyanto Ambariyanto Ambariyanto Amda, Ahmad Dibul Amien, Muhammad I. Amien, Muhammad Irsyad Aminuddin Rizal, Aminuddin Anang Budikarso, Anang Andika Bagus Setiawan, Andika Bagus Andri Wahyu Septo Putra Anggi Rahmadani Kusumaningtyas Anggoro, Muhammad Faisal Anifatur Nurjannah, Anifatur Annisa Marhaeny Antonius Budi Susanto Arbiyanti, Yossi Norma Arbiyanti, Yossi Norma Ardiati Widya Wandira Ari Anshori, Ari Arihanda, Dea Davita Putri Arik Sofan Tohir Aris Dwi Cahyono, Aris Dwi Aris Prasetyo Aris Puji Widodo Aris Puji Widodo Aris Wijayanti Arlina Hidayati, Arlina Arman Jaya Arqam, Mhd. Lailan Artha Rochmanto, Raditya Aryaningrum, Ida Asfan Muqtadir Asmudrono, Rani Karenina Asy'arie, Musa Audy Salsabila Firdausiah Azham Purwandhono Aziz, Ayu Munawaroh Baliyan I, Baliyan Bambang Irawan Bambang Yulianto Bayu Aji Pratama Bayu Kreshna Adhitya Sumarto Bayu Surarso Budi Setiawan Candra Dewi, Riskha Dora Candra Dewi, Yulia Cantik Sitta Devayani Choirul Anam AM Diponegoro Chrisna Adhi Suryono Dacing, Fitria Azis Dadi Dadi Danastri, Arifia Anindita Dandi Setiawan Dea Davita Putri Arihanda Delianis Pringgenis Denny Nugroho Sugianto Destalino Destalino Dhidik Prastiyanto Diah Permata Wijayanti Diah Permata, Wijayanti Diana Layla Dimas Putra Anugrah, Dimas Putra Djoko Widodo Dodik S. Wicaksono Dwi Puji Adiana, Dwi Puji Dyah Wijaya Edi Fahrur Rozy Edi Wibowo Edi Wibowo Kushartono Edy Suharto Edy Suharto Eko Supraptono Emi Agustina, Emi Endah Setiyaningrum Endang Sri Susilo Endang Supriyantini Endro Wahjono, Endro Eny Supryhatun Erni Setyowati Ervia Yudiati Eva Aulia Risma EVI MAYA SARI Fahmi Ari Zuhdi Fahrul Aji, Achmad Fanny Adinda Putri Farid Dwi Murdianto Farohi, Ima fatimah Fatimah Ferdiansyah, Hendra Irawan Ferdiansyah, Indra Fitro, Achmad Frida Fallo Frijona Fabiola Lokollo Ganjar Herdiansyah, Ganjar Gatot Murti Wibowo, Gatot Murti Gatot Yulianto Gentur Handoyo Gigih Budhiawan Gunawan Widi Santosa Gurning, Lestari Febriant Pitaloka Guspianto Guspianto Habibi, Muhammad Nizar Hadi Endrawati Hadiyati, Titi Haerudin Haerudin Handoko, Adelia Handung, Nuryadi Haniati, Isna Luthfa Harindra W Pradhana, Harindra W Harindra Wisnu Pradhana Hartanto, Rico Sigit Haryati Haryati Hendra Irawan Ferdiansyah Heri Sugito Hibatullah, Muhammad Naufal Hidayah, Yayuk Hidayat, Muhammad RF. Hidayat, Muhammad Rijal Fahrudin Hidayati, Ratna Humairoh Ratu Ayu I Ketut Suada Ibnu Pratikto Ibnu Pratikto Ibnu Pratikto Ibnu, Pratikto Ica Admirani, Ica Ikbal Syukroni Ikhsan, Wahyu Ilham Ilham Indhana Sudiharto Indraswari, Tutri Indrawan, Wisnu Innida, Lutfia Lu'lu' Irianto Irianto Irwani Irwani Islam, Anastasya Devi Septanovia Isnaini Istiqomah, Titis Iswanti, Iswanti Ita Riniatsih Ivan Nurizal Sakti Izah, Luluk Lailatul Jatmiko Endro Suseno Jauhar Firdaus Jauhari Syamsiyah Jaya Putra Jahidin Jeffri Ardiyanto Joel Stephen Joko Winarno Juniyanto, Dimas Justin Cullen Kartika Sari Dewi Kartika, Vinda Setya Karyadi Karyadi Kathan Joy Abelino Kesawa Sudarsih Kharis, Muhamad Koderi Kristina Venza Panjaitan Kumbalany, Cleva Tusara Kurniawan, Riko Kusworo Adi Kwartarini Murdiastuti La Nina Gunaswara Samudera Lahengko, Diana S. Laili, Zuhrotul Laksmi Indreswari Lestari Febriant Pitaloka Gurning Lestiyadi, Ayu Puspa Limaran, Ken Lismaya, Elin Lucky Pradigta Setiya Raharja Luki Septya Mahendra M.Pd S.T. S.Pd. I Gde Wawan Sudatha . Mahakar, Abdul Latif Mahda Veronika Mana Sikana, Arina Marhaeny, Annisa Maria Ulfa Ramadhanty Melo, Gabriella Imanuella Melyana Nurul Widyawati Mengko, Allfia Esterlita Menur Wahyu Pangestika, Menur Wahyu Meti Fatimah Mita Eka Septiani Mochammad Denny Surindra Mochammad Syahki Yusup Mohamad Nadhif, Mohamad Muh. Yusuf Muhamad Ravian Wiraputra Muhamad Rizky Mauludin Muhamat Rajab, Nur Echsan Muhammad Adhim Widiyo Putera Muhammad Anwar Muhammad Arif Prasetyo Muhammad Arsyad Suyuti Muhammad Aviv Arsya Irnantyanto Muhammad Faisal Anggoro Muhammad Nur Arkham Muhammad Ridwan Muhammad Ridwan Muhammad Zainuri Mukh Nursikin, Mukh Munandar, Septian Aris Munasik Munasik Mustafid Mustafid Muthoifin Naesilla, Naesilla Nanang Sulaksono Nasronudin Nasronudin Nasrul Nasrul Naswir, Muhammad Netty Nurdiyani, Netty Ngatmin Abbas Niharul Annas Nirwani Soenardjo Noferdiman Noferdiman Nourobby Aulada, Nourobby Novie Ayub Windarko Nugraha, Syechu Dwitya Nur Taufiq Nur Taufiq SPJ Nur Taufiq-SPJ Nur Taufiq-Spj Nuruwildani, Nuruwildani Oky Dwi Nurhayati Oky Yuripa Pradana Oky Yuripa Pradana Olfa Mega P, M. Cahyo Ardi P. H, Aditya Pakradiga, Ahlan Panjaitan, Kristina Venza Paryanti Paryanti, Paryanti Permadi, Bambang Pipiet Wulandari Pipin Ardhianto, Pipin Pradhika, Vicky Dimas Pramesti, Aprilia Dian Pramono, Sidik Prayogi Prayogi Primaswatantri Permata Pritama, Muhammad Fauzi Adityawan Pujianto, Pangestu Eko Purwatmoko, Hariadi Putera, Muhammad Adhim Widiyo Putri Permatasari, Putri Putri, Fanny Adinda Putri, Ni Putu Purba Nava Vidyadhari Rachma Prilian Eviningsih, Rachma Prilian Rachmat Gernowo Raden Ario Raden Ario Raden Mohamad Herdian Bhakti Radini Sinta, Radini Ragil Saputra Rahmat Gernowo Rakhmat Syaefullah Rakhmawati, Renny Ramadhan, Hazbina F. Ramadhan, Hazbina Fauqi Ramadhanty, Maria Ulfa Ratna Dwi Meilani, Ratna Dwi Ratna Kurniawati Rayyis, Ahmad Retno Handayani Retno Hartati Retno Kusumaningrum Reysma Shinta Prastiwi Reza Achmad Fauzi Ria Amitasari Ria Azizah Ria Azizah Ria Azizah Tri Nuraini Rieneke L Sela, Rieneke L Rinda Nurul Karimah, Rinda Nurul Rini Pramesti Rizky Erdana Rochmanto, Raditya Artha Rohmawati Bareta, Ainun Rotua Malau Rudhi Pri, Rudhi Rudhi Pribadi Rusdi, Muh Rusli, Muhammad Rizani Sabirin, Ego Safira Aisha Putri Salsabila, Sahda Samsudin PJ, Nur Taufiq Samudera, La Nina Gunaswara Sangkertadi Sangkertadi Sapja Anantanyu, Sapja Saputra, Antonius D. Saputra, Antonius Dwi Sari, Shela Puspita Sarwati, Dhea Erika Satriyo Adhy Septian Aris Munandar Septiani, Mita Eka Setia, Bagus Setya Kartika, Vinda Setyaningsih, Erni SETYANINGSIH, NANIK Setyawati, Rohmah Cahya Eka Shahwatul Majid Shaimah, Atik Sheilla Rachmania, Sheilla Sihono Sihono Silvia Mawarti Perdana Siti Patimah Slamet Minardi Sofiana, Kristianingrum Dian Sonny Tilaar Sri Astuti Sri Hartati Sri Huning Anwariningsih Sri Kusumastuti, Sri Sri Pramestri Lastianny, Sri Pramestri SRI RAHAYU Sri Redjeki Sri Sedjati Sri Sukamta Su'indayah, Siti Subagiyo Subagiyo Subiakto, Achmad Yusuf Sudadi Sudadi Sugeng Purbawanto Sugeng Widada Suharyanto, Hendik Eko Hadi Sulistyo Warjono, Sulistyo Sumariyah Sumariyah Sumarno . Sumartini Sumartini Sunaryo Sunaryo Sundjoto, Sundjoto Supandi Supriyati . Suratno Suratno Susiloningtyas, Luluk Sutama Sutarto Sutarto Sutedjo Sutedjo Suwarto Suwarto Syafrimen Syafril syahid Syahid, syahid Syahrial V. Canavaro Syahrial Varrel Canavaro Syahrial Varrel Canavaro Syamsul Ma’arif, Rizal Tatyantoro Andrasto Tiara Anggita Tiara Anggita Tiara Anggita Tohari, Achmad I. Tohari, Achmad Ilham Toifah, Umi Tri Saputra, Tri Tri Siwi Nugrahani Triana, Harry Tumingan Tumingan, Tumingan Ulumuddin, M. Ihya’ Utama, Riawati Utomo, Jonny Valentino, Nico Veronica A Kumurur, Veronica A Vicky Dimas Pradhika Vincensius Gunawan S.K. Wahyu Febrianto Wahyu Setia Budi Wahyu Sulistiyo Wandira, Ardiati Widya Wibowo Edi Widianingsih Widianingsih Widihastuti, Rahma Ari Widiyanto Widiyanto Widiyanto Widodo, Nabila Azzahro Widyatmani Sih Dewi Wijaya, Dyah Wijayanti, Puspaneka Wilis Ari Setyati Winda Sari Wiraputra, Muhamad Ravian Wirsuyana, Gede Patrianaya Margayasa Yofi, Yofi Yovita Noor Hidayah Yoyo Yoyo Yumarni, Ani Yuningtyastuti, Gita Surya Yuningtyastuti, Gita Surya Zaenab, Zahrina Isnandia Zaenal Arifin Zeho, Fannidya Hamdani Zigtharinta Agiska Velati

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