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INDONESIA
Jurnal Kelautan : Indonesian Journal of Marine Science and Technology
Published by Universitas Trunojoyo Madura
ISSN : 19079931     EISSN : 24769991     DOI : -
Core Subject :
This journal encompasses original research articles, review articles, and short communications, including: Marine and fisheries ecology and biology, Marine fisheries, Marine technology, biotechnology, Mariculture, Marine processes and dynamics, Marine conservation, Marine pollution, Marine and coastal resource management, Marine and fisheries processing technology, Salt technology, Marine geology, physical and chemical oceanography.
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Search results for , issue "Vol 11, No 2 (2018)" : 10 Documents clear
STUDI PERUBAHAN GARIS PANTAI TIMUR LAUT KABUPATEN ACEH BESAR DAN PIDIE PADA TAHUN 2002 – 2014 Ridha Riani Zahara Lubis; Thaib Rizwan; Syahrul Purnawan; Maria Ulfah; Syarifah Meurah Yuni; Ichsan Setiawan
Jurnal Kelautan Vol 11, No 2 (2018)
Publisher : Department of Marine Sciences, Trunojoyo University of Madura, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/jk.v11i2.3894

Abstract

Penelitian ini bertujuan untuk mengetahui perubahan garis pantai di sepanjang pantai timur laut Kabupaten Aceh Besar dan Pidie pada tahun 2002 hingga 2014 dengan interval selama dua tahun. Penelitian ini dilaksanakan pada bulan Januari – Februari 2016 dimulai dari pinggir pantai Desa Krueng Cut, Aceh Besar sampai Kecamatan Kembang Tanjong, Pidie. Metode Penelitian memanfaatkan teknologi Sistem Informasi Geografis (SIG) dan penginderaan jauh, dengan mengambil data citra satelit Landsat 7 dan Landsat 8 yang diproses menggunakan ArcGIS 10.5. Hasil penelitian ini menunjukkan bahwa perubahan garis pantai yang terjadi sangat signifikan untuk perubahan abrasi maupun sedimentasi.Kata Kunci: Garis Pantai, Abrasi, Sedimentasi, Penginderaan Jauh, Sistem Informasi Geografis (SIG), ArcGIS 10.5.ABSTRACTThis study aims to determine the shoreline changes along the northeastern coast of Aceh Besar and Pidie districts in 2002 to 2014 at intervals of two years. This research was conducted in January - February 2016 starting from coastal village of Krueng Cut, Aceh Besar until Kecamatan Kembang Tanjong, Pidie. The research method utilizes Geographic Information System (GIS) and remote sensing technology, taking Landsat 7 and Landsat 8 satellite images processed using ArcGIS 10.5. The results of this study indicate that the shoreline changes that occur are very significant for abrasion and sedimentation changes.Keywords: Coastline, Abrasion, Sedimentation, Remote Sensing, Geographic Information System (GIS), ArcGIS 10.5.
PENGARUH MOLTING TERHADAP STRUKTUR DAN PERKEMBANGAN CANGKANG PADA LOBSTER HIJAU PASIR (Panulirus homarus L., 1758) T Trijoko; Heri Aji Nurcholis
Jurnal Kelautan Vol 11, No 2 (2018)
Publisher : Department of Marine Sciences, Trunojoyo University of Madura, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/jk.v11i2.3797

Abstract

Lobster merupakan komoditas laut yang memiliki nilai jual tinggi dan selalu mengalami kenaikan, khususnya pada lobster hijau pasir (Panulirus homarus L., 1758). Agar pemanfaatan sumberdaya lobster di perairan ini tetap lestari maka perlu dilakukan pengelolaan yang rasional dengan mempertimbangkan masukan dari aspek biologi. Penelitian ini bertujuan untuk menganalisis pengaruh molting terhadap struktur dan perkembangan cangkang pada lobster hijau (Panulirus homarus L., 1758). Sampel yang digunakan berupa 35 lobster yang terdiri dari ukuran 50 gram hingga 250 gram, yang dipelihara di Unit Kerja Budidaya Air Laut Sundak, Yogyakarta. Analisa data yang dilakukan adalah dengan menggunakan prinsip dasar perbandingan data deskriptif, dimana digunakan perbandingan data dengan cangkang lobster sebelum molting (proecdysis), sesaat molting (ecdysis), dan sesudah molting (postecdysis). Hasil menunjukkan bahwa struktur cangkang pada lobster proecdysis memiliki struktur yang lengkap dan ketebalan cangkang yang paling tinggi. Unsur penyusun cangkang seperti C, O, N, dan Ca paling banyak ditemukan di dalam cangkang. Selain itu, cangkang lobster memiliki rasio berat yang lebih tinggi dibandingkan dengan daging lobster. Cangkang lobster postecdysis memiliki rasio berat cangkang tertinggi, sedangkan pada lobster ecdysis memiliki rasio berat daging yang paling tinggi.Kata Kunci: Struktur, Perkembangan, Cangkang, Lobster, Panulirus homarusABSTRACTLobster is a marine commodity that has a high selling value and always increases, especially in the Scalloped Spiny Lobsters (Panulirus homarus L., 1758). In order for the lobster resources in these waters remains sustainable it is necessary to do a rational management by considering the biological aspects. This study aims to analyze the effect of molting on to shell structure and development on Scalloped Spiny Lobsters (Panulirus homarus L., 1758). The sample used was 35 lobsters consisting of sizes 50 grams to 250 grams, which were kept in the Sundak Sea Water Farming Unit, Yogyakarta. Data analysis is done by using the basic principle of descriptive data comparison, where used comparison of data with lobster on proecdysis (before molting), ecdysis (on molting), and postecdysis (after molting). The results show that the shell structure of the lobster on proecdysis has the complete structure and the highest shell thickness. Shell constituent elements such as C, O, N, and Ca are found mostly in the shell. In addition, lobster shells have a higher weight ratio compared to lobster meat. The lobster shells on postecdysis has the highest shell weight ratio, whereas on the ecdysis lobster has the highest meat weight ratio.Key word: Structure, Development, Shell, Lobster, Panulirus homarus ABSTRACTLobster is a marine commodity that has a high selling value and always increases, especially in the Scalloped Spiny Lobsters (Panulirus homarus L., 1758). In order for the lobster resources in these waters remains sustainable it is necessary to do a rational management by considering the biological aspects. This study aims to analyze the effect of molting on to shell structure and development on Scalloped Spiny Lobsters (Panulirus homarus L., 1758). The sample used was 35 lobsters consisting of sizes 50 grams to 250 grams, which were kept in the Sundak Sea Water Farming Unit, Yogyakarta. Data analysis is done by using the basic principle of descriptive data comparison, where used comparison of data with lobster on proecdysis (before molting), ecdysis (on molting), and postecdysis (after molting). The results show that the shell structure of the lobster on proecdysis has the complete structure and the highest shell thickness. Shell constituent elements such as C, O, N, and Ca are found mostly in the shell. In addition, lobster shells have a higher weight ratio compared to lobster meat. The lobster shells on postecdysis has the highest shell weight ratio, whereas on the ecdysis lobster has the highest meat weight ratio.Key word: Structure, Development, Shell, Lobster, Panulirus homarus 
PENGARUH KONDISI OSEANOGRAFI TERHADAP PERUBAHAN IKLIM DI DAERAH PERAIRAN BATU AMPAR, KEPULAUAN RIAU Muhammad Zainuddin Lubis; Robby Darlinto Silaban; Amanda T Siboro; Feby Angelin Garizi Siahaan; Wenang Anurogo
Jurnal Kelautan Vol 11, No 2 (2018)
Publisher : Department of Marine Sciences, Trunojoyo University of Madura, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/jk.v11i2.4766

Abstract

Dinamika oseanografi perairan timur samudera Hindia dipengaruhi oleh keterkaitan yang kompleks antara gaya penggerak jauh (remote forcing) dari bagian ekuator Samudera Hindia serta pengaruh lokal yang kuat. Perubahan iklim adalah perubahan jangka panjang dalam distribusi cuaca yang nyata secara statistik sepanjang periode waktu tertentu (biasanya dekade atau lebih). Hal ini mengakibatkan terjadinya di lapisan atmosfer paling bawah, yaitu fluktuasi curah hujan yang tinggi dan kenaikan muka laut. Tujuan dari penelitian ini adalah menghasilkan kondisi perubahan iklim terhadap parameter oseanografi. Analisis nilai klorofil-a, suhu permukaan laut dan pasang surut dilakukan untuk melihat perubahan iklim global di perairan Batu Ampar. Hasil analisis tersebut menunjukkan bahwa tinggi muka air laut tertinggi yaitu dengan nilai ketinggian adalah 3,1 meter, dengan suhu permukaan laut yang berada pada kisaran 29,50C - 29,750C, pada waktu 00.05-02.55 (1 Agustus 2017 - 1 September 2017). Hasil analisis kondisi oseanografi di perairan Batu Ampar tidak mengalami perubahan secara fluktuatif terhadap perubahan iklim global.   Kata kunci : Iklim, Klorofil-a, Suhu permukaan laut, Pasang surut, Perairan Batu AmparABSTRACTOceanographic dynamics of the eastern waters of the Indian Ocean are influenced by the complex interrelationship between the remote forcing of the equatorial parts of the Indian Ocean and strong local influences. Climate change is the long-term change in weather distribution statistically for a certain period of time (mostly in a decade or more). This phenomenon causes the fluctuation of the precipitation and sea level rise. The objective of this research is to examine the climate change condition based on oceanography parameters. Chlorophyll-a, sea surface temperature, and tide value analysis is done to observe the global climate change in Batu Ampar waters. The result of the analysis shows that the maximum sea level is at 3.1 m with sea surface temperature ranges from 29.50C – 29.750C and the sea surface data is taken from August 1st 2017 to September 1st 2017, at 00:05 to 02:55. Thus, the oceanography condition analysis results in Batu Ampar waters does not fluctuate regarding global climate change.Keywords: Climate, Chlorophyll-a, Sea surface temperature, Tides, Batu Ampar waters
KUALITAS AIR LAUT UNTUK MENDUKUNG WISATA BAHARI DAN KEHIDUPAN BIOTA LAUT (Studi Kasus: Sekitar Kapal Tenggelam Sophie Rickmers, Perairan Prialaot Sabang) Try Al Tanto; Nia Naelul HR; I Ilham
Jurnal Kelautan Vol 11, No 2 (2018)
Publisher : Department of Marine Sciences, Trunojoyo University of Madura, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/jk.v11i2.4276

Abstract

Perairan Prialaot-Sabang direncanakan sebagai lokasi kegiatan wisata bahari. Di perairan ini terdapat kapal tenggelam MS Sophie Rickmers, merupakan salah satu tujuan wisata bawah air yang banyak diminati. Perlu dilakukan kajian kualitas perairan, merupakan parameter penting suatu perairan laut terutama bagi kehidupan biota laut yang tidak terpisahkan dari aktivitas wisata bahari. Tujuannya adalah untuk mengetahui kondisi terkini beberapa parameter kualitas perairan. Pengukuran kualitas perairan dilakukan secara in-situ dan pengujian di laboratorium. Hasil yang diperoleh, yaitu nilai kecerahan perairan (8-11 m atau 80-100%), kekeruhan (rataan 0,08 NTU), pH (rataan 8,27), TDS (rataan 51,26 mg/L), salinitas (rataan 31,27‰), suhu (rataan 29,22°C), BOD.5 (rataan 0,78 mg/L), nitrit (rataan 0,0075 mg/L), amoniak (rataan 0,05 mg/L), dan logam berat (Zn, Pb, Cu, dan Cd, tidak terdeteksi dalam pengujian). Sedikit catatan untuk parameter DO, nutrien (phospat dan nitrat), dan TSS perairan. Secara umum, nilai DO (rataan 4,53 mg/L) tidak berpengaruh signifikan terhadap biota laut, namun masih kurang dari baku mutu (5 mg/L). Kondisi nutrien (phospat dan nitrat) masih bernilai tinggi (rata-rata 0,08 mg/L dan 1,17 mg/L) dan berada di atas baku mutu air laut. Untuk nilai parameter TSS perairan, memiliki nilai yang juga cukup tinggi dengan rata-rata sebesar 21,83 mg/L. Kondisi kualitas air laut sekitar kapal tenggelam MS Sophie Rickmers perairan Prialaot Sabang masih dalam kondisi yang baik untuk keperluan wisata bahari dan kehidupan biota laut. Kata kunci: kualitas air laut, wisata bahari, biota laut, kapal tenggelam sophie rickmers, SabangABSTRACTPrialaot Sabang Water is planned as marine tourism area. There is Shipwreck Site MS Sophie Rickmers. The site is which one underwater tourism that very much interested. Quality water studies is done because which one the parameter of important especially for marine life that is inseparable from marine tourism. The goal are to known the condition more water quality parameters in Shipwreck around. Measurements of water quality is done directly and testing in a labotatory also. The results are paramater as visibility (8-11 m or 80-100%), turbinity (mean 0,08 NTU), pH (mean 8,27), TDS (mean 51,25 mg/L), salinity (mean 31,27‰), temperature (mean 29,22°C), BOD.5 (mean 0,78 mg/L), nitrite (mean 0.0075 mg/L), ammonia (mean 0.05 mg/L), and heavy metals (Zn, Pb, Cu, and Cd, not detected on checking). Some other parameters must to protected as DO, nutrient (phospate and nitrate), and TSS. Generally, DO value is 4,53 mg/L not significant effect for life of sea organism, but still up down from quality standards (5 mg/L). Means of Phospate 0,08 mg/L and nitrite 1,17 mg/L are high from quality standard than life of sea organism dan marine tourism.TSS parameter has high value also is mean of 21,83 mg/L. The condition of water quality still good for life organism and marine tourism there.Key words: sea water quality, marine tourism, marine life, sophie rickmers, Sabang
PENGARUH PASANG SURUT TERHADAP DINAMIKA PERUBAHAN HUTAN MANGROVE DI KAWASAN TELUK BANTEN Wenang Anurogo; Muhammad Zainuddin Lubis; Nurul Khakhim; Wikan Jaya Prihantarto; Lingga Renggana Cannagia
Jurnal Kelautan Vol 11, No 2 (2018)
Publisher : Department of Marine Sciences, Trunojoyo University of Madura, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/jk.v11i2.3804

Abstract

Luas hutan mangrove Indonesia menurun sekitar 4,5 juta ha menjadi 1,9 juta ha. Penurunan luas hutan mangrove paling dominan disebabkan oleh faktor manusia. Pemantauan tingkat kerusakan hutan mangrove dengan menggunakan metode konvensional memakan waktu lama dan mahal. Pemantauan tingkat kerusakan ini sangat penting bagi para stakeholder dalam mengelola kawasan hutan mangrove. Pemanfaatan data spasial dapat memudahkan dan mempercepat interaksi dengan benda-benda di permukaan bumi. Tahapan dalam penelitian ini meliputi tiga bagian, yaitu tahap pre-field, field dan post-field. Tahap pre-field termasuk pengumpulan data, pengolahan gambar, dan identifikasi tutupan lahan di daerah penelitian untuk setiap tahunnya. Data tutupan ekstraksi dari data citra penginderaan jauh di setiap tahun kemudian dipisahkan dari data tutupan lahan mangrove. Data tutupan lahan mangrove untuk tahun pencatatan 2017 digunakan sebagai unit analisis yang digunakan sebagai basis referensi untuk pengambilan informasi di lapangan. Tahap post-field dimaksudkan untuk memproses data yang dikumpulkan, analisis statistik, menguji keakuratan hasil perubahan dan menilai kemampuan gambar penginderaan jauh dalam mengidentifikasi hutan mangrove dan transfer fungsi utilitas mereka. Luas hutan mangrove di Kabupaten Banten sekitar 681,86 Ha. Penyebaran hutan mangrove terbesar adalah di kecamatan Tirtayasa dan Pontang. Kedua kawasan tersebut memiliki nilai persentase 29,75% dan 28,46% dari total luas hutan mangrove di Teluk Banten. Tingkat distribusi terkecil adalah Kabupaten Kramatwatu yang hanya sekitar 3,11% atau 21,19 Ha dari total luas hutan mangrove di Teluk Banten.Kata kunci: Mangrove, Dinamika perubahan mangrove, Data Spasial, Pasang SurutABSTRACTThe extent of Indonesia's mangrove forest declines from the initial area of about 4.5 million ha to 1.9 million ha. The decline in the area of mangrove forest is most dominant due to the damage caused by human factors. Monitoring the extent of mangrove forest destruction by using conventional methods takes a long time and is expensive. Monitoring this level of damage is very important for the stakeholders in managing the mangrove forest area. Utilization of spatial data can facilitate and accelerate in interacting with objects found on the surface of the earth. Stages in this research outline include three parts, namely pre-field stage, field stage and post-field stage. The pre-field stage includes data collection to be used, image processing, and land cover identification in the research area for each year of image recording. The cover data of the extraction from remote sensing image data in each recording year is then separated from mangrove land cover data. The mangrove land cover data for the recording year 2017 is then used as the unit of analysis used as the reference base for information retrieval in the field by using the sample. The post-field stage is intended to process the data collected, statistical analysis, test the accuracy of the results of changes and assess the capabilities of remote sensing images in identifying mangrove forests and transfer of their utility functions. The mangrove forest in Banten regency is about 681.86 Ha. The largest spread of mangrove forest is in Tirtayasa and Pontang sub-districts. The two sub-districts have a percentage value of 29.75% and 28.46% of the total mangrove forest area in Banten Bay. The smallest extent of distribution is in Kramatwatu District which is only about 3.11% or 21.19 Ha of the total area of mangrove forest in Banten Bay.Keywords: Mangrove, Dynamics of mangrove changes, Spatial Data, Tidal
Corrosion Behavior of Mild Steel in Seawater from Karangsong & Eretan of West Java Region, Indonesia Gadang Priyotomo; Lutviasari Nuraini; Siska Prifiharni; S Sundjono
Jurnal Kelautan Vol 11, No 2 (2018)
Publisher : Department of Marine Sciences, Trunojoyo University of Madura, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/jk.v11i2.4335

Abstract

The corrosion behavior of mild carbon steel, has been investigated using an immersion test and energy-dispersive X-ray spectroscopy in solutions from the sites of Karangsong and Eretan, Northern Coast of West Java Region, Indonesia. As reference, solutions of 3.5% and 5% NaCl were prepared. Salinity, conductivity, and total dissolved solids (TDS) were measured. It was found that uniform corrosion observed on mild steel during the immersion test. Corrosion resistance of alloys decreases with increasing exposure time in natural seawater solutions. Since magnitudes of conductivity, salinity and TDS of all test solutions are similar, it implied that chloride ion have primary role for inducing the corrosion risk of mild steel. That parameter hinders the formation of stable passive film on the surface of corroded mild steel.Key words: conductivity; immersion test; mild steel; salinity; seawater; total dissolved solids.
Pengaruh Pemberian Lactobacillus sp. dengan Dosis yang Berbeda terhadap Sistem Imun Udang Vaname (Litopenaeus vannamei) yang diinfeksi Bakteri Vibrio parahaemolyticus Miftahul Jannah; Muhammad Junaidi; Dewi Nur’aeni Setyowati; Fariq Azhar
Jurnal Kelautan Vol 11, No 2 (2018)
Publisher : Department of Marine Sciences, Trunojoyo University of Madura, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/jk.v11i2.3980

Abstract

Udang vaname merupakan udang hasil introduksi yang memiliki nilai ekonomis tinggi baik di pasar lokal maupun di pasar internasional. Salah satu penyakit yang sering menyerang udang vaname adalah Vibrio parahaemolyticus. Penelitian ini bertujuan untuk menguji pengaruh pemberian bakteri probiotik Lactobacillus sp. terhadaprespon imun udang vaname yang diinfeksikan dengan V. parahaemolyticus, Survival rate, dan kepadatan bakteri V. parahaemolyticus pada usus udang. Udang yang digunakan adalah udang yang berumur 62 hari yang dipelihara dalam akuarium berukuran 30x30x25 cm sebanyak 10 ekor. Penelitian dilakukan dengan 5 perlakuan yaitu Kontrol(–)(tanpa Lactobacillus sp. dan tidak diinfeksi), Kontrol(+) (tanpa Lactobacillus sp. kemudian diinfeksi), P1 (Lactobacillus sp. 106 CFU/ml), P2 (Lactobacillus sp. 108 CFU/ml), P3 (Lactobacillus sp. 1010 CFU/ml). Hasil penelitian menunjukkan bahwa pemberian Lactobacillus sp.dengan dosis 108 CFU/ml mampu meningkatkan THC udang vaname sebesar 5,58 x 106 sel/ml, sel hialin dan sel granular yang berperan penting dalam sistem imun udang, meningkatkan nilai SR udang sebesar 86,67% dan menekan pertumbuhan bakteri patogen V. parahaemolyticus. Berdasarkan hasil penelitian ini, penggunaan dosis probiotik Lactobacillus sp. yang dianjurkan pada budidaya udang vaname untuk meningkatkan sistem imun, tingkat kelangsungan hidup udang dan menekan pertumbuhan bakteri V. parahaemolyticus adalah 108 CFU/ml.Kata kunci: Lactobacillus sp., V. parahaemolyticus, udang vaname, dosis Lactobacillus sp.ABSTRACTVannamei is an introduced shrimp that has economic value in both local and international market. One of the diseases that often attack vannamei shrimp is Vibrio parahaemolyticus. This study aims to determine the probiotic bacteria Lactobacillus sp. against vannamei shrimp immune response infected with V. parahaemolyticus, Survival rate, and bacterial V. parahaemolyticus density of the shrimp intestine. Shrimp used are shrimp that is 62 days which is kept in aquarium size 30x30x25 cm as many as 10 shrimp. The study was conducted with 5 controls: Control (-) (without Lactobacillus sp. and not infected), Control (+) (without Lactobacillus sp. and infected), P1 (Lactobacillus sp. 106 CFU / ml), P2 (Lactobacillus sp. 108 CFU / ml), P3 (Lactobacillus sp. 1010 CFU / ml). The results showed that the administration of Lactobacillus sp. with a dose of 108 CFU / ml was able to increase THC vannamei shrimp by 5.58 x 106 cells / ml, hyaline cells and granular cells required in the shrimp immune system, increasing shrimp SR value by 86.67% and core growth of V. parahaemolyticus. Based on the results of this study is the use of probiotic Lactobacillus sp. which is recommended in the cultivation of vaname shrimp to improve the immune system, the level of shrimp survival and suppress the growth of bacteria V. parahaemolyticus is 108 CFU / ml.Keywords: Lactobacillus sp., V. parahaemolyticus, vannamei, dose of Lactobacillus sp.
PENGARUH PERGERAKAN MASSA AIR DAN DISTRIBUSI PARAMETER TEMPERATUR, SALINITAS DAN KECEPATAN SUARA PADA KOMUNIKASI KAPAL SELAM Okol Sri Suharyo; Dian Adrianto; Zainul Hidayah
Jurnal Kelautan Vol 11, No 2 (2018)
Publisher : Department of Marine Sciences, Trunojoyo University of Madura, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/jk.v11i2.4521

Abstract

Kajian terhadap karakteristik pola propagasi gelombang akustik bawah air yang meliputi temperatur, salinitas dan kecepatan suara dapat dipergunakan untuk mendeteksi keberadaan kapal selam. Pada umumnya kapal selam melalui atau bersembunyi pada daerah-daerah bayangan (shadow zone), yaitu suatu daerah yang tidak dilalui oleh propagasi gelombang akustik. Dengan mengetahui posisi atau daerah tersebut maka dapat dipetakan daerah lalu lintas kapal selam. Program Monterey – Miami Parabolic Equation (MMPE) dipergunakan untuk mensimulasikan pola propagasi gelombang akustik, yang sebelumnya telah dilakukan uji model dengan metode Ray Tracing (frekuensi tinggi) dan Normal Mode (frekuensi rendah).  Penelitian ini memilih Selat Lombok sebagai lokus penelitian karena daerah tersebut memiliki dinamika oseanografi yang kompleks dengan bertemunya massa air dari Samudra Indonesia dan Samudra Pasifik.  Simulasi dilakukan pada 2 musim yaitu musim Barat dan musim Timur (2015-2016). Simulasi I sumber akustik diletakkan di Pulau Bali dan berpropagasi ke Timur. Simulasi II sumber akustik di Pulau Lombok dan arah propagasi ke Barat. Simulasi III sumber akustik di Pulau Bali dan berpropagasi ke Tenggara, dan Simulasi IV sumber akustik di Pulau Lombok dan arah propagasi ke Barat Laut. Dari hasil simulasi menunjukkan terbentuknya shadow zone pada seluruh stasiun penelitian kecuali pada stasiun PPSL 15 dan stasiun STN 10.  Peta jalur lalu lintas kapal selam dibuat berdasar daerah shadow zone yang terbentuk, serta penentuan tempat pemasangan alat monitoring kapal selam ditentukan berdasarkan pada daerah yang minimal/tidak terdapat shadow zone.Daerah tersebut adalah daerah antara stasiun STN 10 dan PPSL 15 dengan koordinat titik A (8.746 S – 115.622 T), B (8.746 S – 115.819 T), C (8.750 S -115.624 T) dan D (8.750 S – 115.814 T).Katakunci: Parameter Temperatur, Salinitas, Kecepatan Suara, Monterey–Miami Parabolic Equation, Monitoring Kapal Selam.ABSTRACTThe study of the characteristics of the underwater acoustic wave propagation pattern which includes temperature, salinity and sound speed can be used to detect the presence of submarines. In general, submarines through or hide in shadow areas (shadow zone), which is an area that is not traversed by the propagation of acoustic waves. By knowing the position or area, it can be mapped submarine traffic area. The Monterey - Miami Parabolic Equation (MMPE) program is used to simulate the acoustic wave propagation pattern, which has previously been tested using the Ray Tracing (high frequency) and Normal (low frequency) methods. This study chose the Lombok Strait as a research locus because the area has complex oceanographic dynamics with the meeting of water masses from the Indonesian Ocean and the Pacific Ocean. Simulations are carried out in 2 seasons namely the West and East seasons (2015-2016). The first simulation of acoustic sources was placed on the island of Bali and propagated to the East. Simulation II of acoustic sources on Lombok Island and the direction of propagation to the West. Simulation III of acoustic sources on Bali Island and propagating to the Southeast, and IV Simulation of acoustic sources on Lombok Island and direction of propagation to the North West. From the simulation results show the formation of shadow zones in all research stations except at the PPSL 15 station and STN 10 station. The submarine traffic lane map is made based on the shadow zone area formed, and the determination of the installation site of submarine monitoring equipment is determined based on the minimum area / there is no shadow zone. The area is the area between STN 10 and PPSL 15 stations with coordinates A (8,746 S - 115,622 T), B (8,746 S - 115,819 T), C (8,750 S -115,624 T) and D (8,750 S - 115,814 T).Keywords: Temperature, Salinity, Sound Speed, Monterey – Miami Parabolic Equation, Submarine Monitoring.
PREFERENSI HABITAT SPESIES OPHIUROIDEA DI ZONA INTERTIDAL PANTAI PANCUR TAMAN NASIONAL ALAS PURWO Rendy Setiawan; Tri Atmowidi; Kanthi A. Widayati; Pradina Purwati
Jurnal Kelautan Vol 11, No 2 (2018)
Publisher : Department of Marine Sciences, Trunojoyo University of Madura, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/jk.v11i2.4741

Abstract

Karakteristik zona intertidal Pantai Pancur Taman Nasional Alas Purwo berupa paparan karang mati, bebatuan, area lamun, dan area makroalga. Kondisi habitat yang heterogen ini menarik untuk diteliti, terutama dalam rangka memahami preferensi habitat populasi spesies Ophiuroidea yang ada, dengan posisi pantai yang menghadap laut lepas Samudera Hindia yang dikenal bergelombang tinggi dan berarus deras. Untuk menentukan relung yang dipilih tiap populasi Ophiuroidea, dilakukan metode road sampling dengan cara ‘tracking’ tipe-tipe habitat dengan GPS sehingga bisa dipetakan dalam peta tematik. Di atas peta ini, kemudian di gambarkan posisi (dengan GPS) tiap individu Ophiuroidea yang ditemukan. Penggambaran peta sebaran tersebut menggunakan program ArcGIS 9.3. Persebaran Ophiuroidea di wilayah Pantai Pancur tidak merata dan cenderung mengelompok pada wilayah yang terdapat substrat batu berpasir, area alga, dan area lamun. Ophiocoma scolopendrina merupakan spesies yang dominan ditemukan di Pantai Pancur dan menempati area yang paling luas dibandingkan spesies yang lain. Macrophiothrix longipeda adalah spesies yang menempati area paling sempit. Berdasarkan hasil overlay peta persebaran alga dan lamun di Pantai Pancur, Ophiuroidea menempati wilayah bersama pada substrat batu berpasir dengan area lamun dan alga Area. O. brevipes, O. annulosa, dan M. longipeda ditemukan tidak bersinggungan saat penelitian. Ini menunjukkan salah satu strategi berbagi ruang.Kata Kunci: Ophiuroidea, Pantai Pancur, Taman Nasional Alas PurwoABSTRACTCharacteristics of Intertidal zone Pancur Coastal Alas Purwo National Park has dead coral, bed rock, seagrass, and seaweed. This heterogeneous habitat condition is interesting to study, especially in order to understand the habitat preferences of the existing Ophiuroidea species population, with the position of the beach facing the sea off the Indian Ocean which is known to be high wave and swift flow. For determine the niche chosen by each Ophiuroidea population, the road sampling method is carried out by means of 'tracking' habitat types with GPS so that they can be mapped on thematic maps. On this map, then describe the position (with GPS) of each Ophiuroidea individual found. The depiction of the distribution map uses the ArcGIS 9.3 program. The distribution of Ophiuroidea in the Pancur Beach area is uneven and tends to cluster in areas with sandy stone substrates, algae areas, and seagrass areas. Ophiocoma scolopendrina is the dominant species found on Pancur Beach and occupies the most extensive area compared to other species. Macrophiothrix longipeda is a species that occupies the narrowest area. Based on the results of overlaying maps of algae and seagrass distribution in Pancur Beach, Ophiuroidea occupied a shared area on sandy rock substrate with seagrass areas and seaweed Area Ophiocoma brevipes, Ophiomastix annulosa, and M. longipeda found not intersecting during the study. This shows one of the space sharing strategies. Keywords: Ophiuroidea, Pancur Coast, Alas Purwo National Park
KAJIAN FILOGENETIK IKAN TUNA (Thunnus spp) SEBAGAI DATA PENGELOLAAN DI PERAIRAN SEKITAR KEPULAUAN MALUKU, INDONESIA Nebuchadnezzar Akbar; Muhammad Aris; Muhammad Irfan; Irmalita Tahir; Abdurrachman Baksir
Jurnal Kelautan Vol 11, No 2 (2018)
Publisher : Department of Marine Sciences, Trunojoyo University of Madura, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (363.679 KB) | DOI: 10.21107/jk.v11i2.3459

Abstract

Ikan tuna (Thunnus Spp) adalah ikan pelagis yang memilili kemampuan migrasi dan nilai komersial. Kondisi oseanografie Maluku Utara dan Ambon mendukung kelimpahan stok populasi sumberdaya. Pengetahuan filogenetik dapat membantu menunjukan hubungan evolusioner dari suatu organisme yang disimpulkan dari data morfologi dan molekuler. Tujuan penelitian untuk mengetahui filogenetik ikan tuna di perairan Maluku Utara dan Ambon. Penelitian ini menggunakan metode PCR-Sequencing. Analisis molekuler menggunakan Polymerase Chain Reaction (PCR) dengan primer CRK-CRE, elektroforesis. Rekonstruksi pohon filogenetik menggunakan metode Neighbor joining dan model evolusi Kimura 2-parameter dilakukan dengan aplikasi MEGA5. Hasil penelitian filogenetik menemukan terdapat empat empat clade spesies ikan tuna yang saling berbeda (tuna mata besar ; tuna sirip kuing ; tuna alalunga ; cakalang ). Jarak genetik tuna mata besar (T.obesus)  dengan tuna sirip kuning (T.albacares)  adalah 0.09, tuna mata besar (T.obesus)  dengan tuna alalunga (T.albacore) adalah 0.19, tuna sirip kuning (T.albacares)  dengan tuna alalunga (T.albacore),  sebesar 0.21,  tuna mata besar (T.obesus)  dengan tuna alalunga (T.albacore)  cakalang (K.pelamis) adalah 0.34, cakalang (K.pelamis) dengan tuna alalunga (T.albacore) adalah  0.39 dan tuna sirip kuning (T.albacares)  dengan Cakalang (K.pelamis) adalah 0.34. Semua hasil menunjukan perbedaan genetik yang signifikan, genetik spesies tuna berasal dari satu kelompok dan filogeografi memiliki batas distribusi yang nyata antar satu dengan yang lain.Kata Kunci :     Thunnus, Polymerase Chain Reaction (PCR), Pohon Filogenetik, primer CRK-CRE, , Neighbor joining, Kimura 2-parameter, jarak genetik, MEGA5, filogeografi.  ABSTRACTTuna (Thunnus Spp) is a pelagic fish that has migration capabilities and commercial value. The condition of North Maluku and Ambon oceanographies supports the abundance of resource population stocks. Phylogenetic knowledge can help show the evolutionary relationship of an organism inferred from morphological and molecular data. The aim of the study was to determine phylogenetic of tuna in the waters of North Maluku and Ambon. This study used the PCR-Sequencing method. Molecular analysis uses a polymerase chain reaction (PCR) with CRK-CRE primer, electrophoresis. Reconstruction of the phylogenetic tree using the Neighbor joining method and the Kimura 2-parameter evolution model was carried out with the MEGA5 application. The results of phylogenetic research found that there were four four different clades of tuna species (bigeye tuna; kuing fin tuna; alalunga tuna; cakalang). The genetic distance of big eye tuna (T.obesus) with yellow fin tuna (T.albacares) is 0.09, bigeye tuna (T.obesus) with tuna alalunga (T.albacore) is 0.19, yellow fin tuna (T.albacares) with tuna alalunga (T.albacore), for 0.21, big eye tuna (T.obesus) with alalunga tuna (T.albacore) cakalang (K.pelamis) is 0.34, cakalang (K.pelamis) with alalunga tuna (T.albacore) is 0.39 and yellow fin tuna (T.albacares) with Cakalang (K. pelamis) are 0.34. All results show significant genetic differences, genetic tuna species come from one group and filogeography has a real distribution boundary between one another.Keywords: Thunnus, Polymerase Chain Reaction (PCR), Phylogenetic Tree, CRK-CRE primer, Neighbor joining, Kimura 2-parameter, genetic distance, MEGA5, filogeography.

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