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Depik Jurnal Ilmu-Ilmu Perairan, Pesisir dan Perikanan

depik
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Published by Universitas Syiah Kuala

ISSN : 20897790 EISSN : 25026194 DOI : 10.13170/depik

Core Subject : Science, Education, Engineering,

Earth & Planetary Sciences Education Engineering

Depik Jurnal Ilmu-Ilmu Perairan, Pesisir dan Perikanan is a peer review international journal, this journal is publishing high-quality articles in aquatic sciences and fisheries in general. The aim of the journal is to publish and disseminate the current or new findings of the research, and give a significant contribution to the development of fisheries and aquatic sciences in several topics, but not limited to: Fisheries (Aquaculture, Capture Fisheries, Fish Processing) Aquatic Ecology (Freshwater, Marine, and Brackishwater) Aquatic Biology (Fish, Mollusk, Crustacean, Plankton, Coral reefs) Oceanography

Arjuna Subject : Ilmu Bumi dan Planet (semua kategori) - Oseanografi

Articles 944 Documents

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Penerapan suhu pemingsanan dalam transportasi sistem kering ikan baronang Siganus sp. Taufik Hidayat; Muhammad Baiquni Bramantyo; Mala Nurilmala
Depik Vol 7, No 3 (2018): December 2018
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Abstract. Rabbitfish (Siganus sp.) is an unfamiliar fish consumption in public. Demand of fresh fishes continue to increase every year. One method to maintain freshness of fish is fish transportation method. The research purpose was to determine the best rabbitfih immotilization temperature for filler media in transportation tools packaging, immotilization fish use 2 ppt of clove oil, and then fish conscious test was measured at , 14°C, dan 17°C, and 19°C of temperatures. The experiments were the fish conscious time and water quality analyses. Test of water qualities were seawater before used, water plus anesteshia (water+clove oil), immotilization water (water+clove oil+fish), seawater for temperature treatment, and seawaterafter conscious fish. Water quality parameter analyses were DO (Dissolved oxygen),pH, CO2, TAN, KH, GH, NO3, NO2. The best temperature of fish conscious time test in this experiment was 17°C with 300 minutes of conscious time.Keywords: Immotilization; Siganus sp.; Transportation; Water quality Abstrak. Ikan baronang (Siganus sp.) merupakan ikan konsumsi yang belum familiar di masyarakat luas. Ikan segar terus meningkat permintaannya setiap tahunnya. Salah satu metode untuk mempertahankan kesegaran ikan adalah dengan metode transportasi. Penelitian ini bertujuan untuk mengetahui suhu pemingsanan terbaik ikan baronang untuk media pengisi pada kemasan alat transportasi, ikan dipingsankan dengan minyak cengkeh 2 ppt kemudian di uji waktu sadar ikan dengan perlakuan suhu 19°C, 14°C, dan 17°C. Pengujian yang dilakukan adalah uji waktu sadar ikan dan uji kualitas air. Kualitas air yang diuji adalah air laut sebelum digunakan, air ditambah anestesi (air+minyak cengkeh), air proses pemingsanan (air+minyak cengkeh+ikan), air laut untuk perlakuan suhu, dan air setelah pembugaran.Parameter uji kualitas air adalah DO, pH, CO2, TAN, KH, GH, NO3, NO2. Pengujian waktu sadar ikan terbaik adalah dengan perlakuan suhu 17°C dengan waktu sadar sebesar 300 menit. Kata kunci:Transportasi;Siganussp.; Pemingsanan; Kualitas air

Penilaian tingkat pencemaran logam berat dalam sedimen di perairan Pulau Morotai, Maluku Utara Edward .
Depik Vol 4, No 2 (2015): AUGUST 2015
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Abstract. Morotai Waters, located in North of Maluku, has panoramic coastal waters and marine natural beautiful view, and rich of fishery resources, so it is potentially to be developed as a location for recreation area, mariculture, and fisheries industries. For those reasons, the development need a lot of base data, one of the data base is heavy metals. Heavy metals comes from various human activities, both on land and at sea and geological process. Heavy metals in low levels needed by aquatic organisms for the growth and development of its life, but high levels are toxic. Measurement of levels of heavy metals Pb, Cd, Cu, Zn, Ni, and Cr in the sediment in the waters of Morotai was conducted in June 2005. Sediment samples is taken using gravity cores at 13 research stations. The levels of heavy metals were measured using Atomic Absorption Spectrophotometer (AAS). The purpose of this study was to evaluate the contamination and pollution of heavy metals pollution level in Morotai Island waters using CF, I_geo, and PLI. The results of this study show that, based on the value of contamination factors (CF), geoaccumulation indices (I_geo) and pollution load indices (PLI), sediment in this water is include to uncontamination and unpolluted category and is still safe for marine life (CF0, I_geo0 and PLI 1).Keywords: Morotai; sediment; heavy metal; pollutions Abstrak. Perairan Morotai terletak di Maluku Utara, perairan ini memiliki panorama pantai dan alam laut yang indah, serta kaya akan sumberdaya perikanan, sehingga berpotensi untuk dikembangkan sebagai lokasi wisata bahari, budidaya, dan industri perikanan. Untuk pengembangan tersebut diperlukan data dasar, salah satu data dasar tersebut adalah data logam berat. Logam berat berasal dari berbagai aktivitas manusia yang ada di darat maupun di laut, dan proses geologis di alam. Logam berat dalam kadar yang rendah diperlukan oleh organisme perairan untuk pertumbuhan dan perkembangan hidupnya, namun dalam kadar yang tinggi bersifat racun. Pengukuran kadar logam berat Pb, Cd, Cu, Zn, Ni, dan Cr dalam sedimen di perairan Morotai telah dilakukan pada bulan Juni 2005. Contoh sedimen diambil dengan menggunakan gravity core pada 13 stasiun penelitian. Kadar logam berat diukur dengan menggunakan Spektrofotometer Serapan Atom (SSA). Tujuan penelitian ini adalah untuk menilai tingkat kontaminasi dan tingkat pencemaran logam berat dalam sedimen di perairan Pulau Morotai dengan menggunakan nilai faktor kontaminasi (CF), indeks geoakumulasi (I_geo) dan indeks beban pencemaran (PLI). Hasilnya menunjukkan berdasarkan nilai CF, I_geo, dan PLI, sedimen di perairan ini termasuk kategori tidak terkontaminasi dan tidak tercemar oleh logam berat Pb, Cd, Cu, Zn, Ni, dan Cr, serta masih aman untuk kehidupan biota laut (CF0, I_geo0 dan PLI1).Kata Kunci: Morotai; sedimen; logam berat; pencemaran

Study on shipyard location and model development Thaib Rizwan; Husaini Husaini; Husni Husin; Akhyar Akhyar
Depik Vol 11, No 3 (2022): DECEMBER 2022
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

The shipyard location and model highly influence shipyard industry development. This study aims to assess the location feasibility and determine the shipyard model suitable for shipyard industry development in Kutaraja Fishing Port. The study was conducted in Kutaraja Fishing Port. AHP method was used to determine the location and model, then analyzed using the Expert Choice v11 software. The data were collected using questionnaire interviews and further allocated the value using paired comparison scale table. The result shows that the shipyard industry is feasible to be developed in an area where land parameters adjacent to the waters have a maximum value of 37.3% compared with the five other parameters. The suitable shipyard model to be developed in Kutaraja Fishing Port is the slipway type with a value of 46.1%.Keywords:LocationModelShipyard

Heavy metal content in pumpkin pond of Kutaraja Fishing Port Banda Aceh Muhammad Muhammad; Shelly Anggi Pratiwi; Thaib Rizwan; Zulkarnain Jalil
Depik Vol 10, No 2 (2021): August 2021
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Fishing port scan support fishery resources management by incorporating social-economic activities to improve the local community's welfare; however, it can also negatively impact the environment by increasing waste pollution to the surrounding waters. Kutaraja Fishing Port, Banda Aceh, is one of the active fishing ports that conduct multiple activities, such as industrials, transportations, and domestic activities threatening the environment through the production of pollution such as heavy metals. The purpose of this study is to determine the concentration of heavy metals Zinc (Zn) and Chromium (Cr) and the sediment contamination level in the Kutaraja Fishing Port, Banda Aceh. This research was conducted in February 2021 at the water site of Samudra Kutaraja Fishing Port, Banda Aceh, and sampled sediments using the purposive sampling method. Samples were then analyzed for heavy metal concentration using the Atomic Absorption Spectrophotometer (AAS) instrument in the laboratory of the Aceh Industrial Research and Standardization Center (BARISTAND). The results showed that the concentration of heavy metal Zn ranged from 15.6507 - 27.2939 mg/kg. The majority of heavy metal Cr concentrations were below the test limit of 0.000, except at station 2, which was 9.1212. Both heavy metal concentrations are still categorized as low contamination criteria and still below the Australian and New Zealand Environment and Conservation Council (ANZECC, 2000) and the Canadian Council of Ministers for the Environment (CCME, 2002). This research proved that both heavy metals do not threaten the biota and have a low contamination level in the waters.Keywords:SedimentHeavy metal (Zn)Heavy metal (Cr)Atomic-absorptionSpectro-photometerAssessment

Variasi sebaran suhu dan klorofil-a akibat pengaruh Arlindo terhadap distribusi ikan cakalang di Selat Lombok Andry Nugroho Setiawan; Yayat Dhahiyat; Noir Primadona Purba
Depik Vol 2, No 2 (2013): August 2013
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Abstract. The movement ofthewater mass affected Indonesian waters characterisicaretraversedbyIndonesian Throughflow which one of them in Lombok Strait. This study conductedtodetermine Indonesian Throughflow effectagainsttemperature distribution,chlorophyll-a variation and also distribution ofskipjackin theLombokStrait in 2008. The studyarealocated atcoordinate115˚E-116˚Eand8˚S-9˚S. The dataused weretemperature, chlorophyll-a, sea surfacecurrentsandalsosupported withskipjackcatches data. Visualizationresultshowed westseason,seasurface temperaturehigh enough withranged between26.62-31.12oC andchlorophyll-a concentrationby0.05596-0.9778mg(m-3)-1withthe current directiontend to lead to the northeastwith a speed ranged of0.0250-0.4439ms-1. In thefirsttransitiontemperature ofthe seasurfaceslightlydecreasedrangedbetween26.77-30.30oC andfollowed by arise chlorophyll-a concentrationby0.07302-0.7324mg(m-3)-1withthe current directiontend to leadto the eastwith a speed ranged0.0640-0.8123ms-1. In the east season,seasurfacetemperaturewas quitelow,ranged from24.30-29.33oC andfollowedwithan increased chlorophyll-a concentrationby0.1491-0.9897mg(m-3)-1 withthe current directiontend to leadto the southeastwith a speed ranged by0.4351-1.1813 ms-1. In thesecondtransition, seasurfacetemperature rised back withranged25.12-31.05oC andfollowed bydecreased concentration ofchlorophyll-a by0.09565-0.9456mg(m-3)-1withthe current directiontend to leadto the southeastwith a speed ranged by0.1129-0.7336ms-1. The relationship betweentemperatureandchlorophyll-a resultshowedvariationbutona warmtemperatureandfairlyhigh chlorophyll-a, catchedarehigh enoughinSeptember-November.Keywords: Indonesian Throughflow; Lombok Strait; Skipjack Abstrak.Pergerakan ARLINDO yang melalui perairan Indonesia berpengaruh pada karakteristik perairan di timur Indonesia dimana salah satunya adalah Selat Lombok. Kajian ini menekankan pengaruh Arlindo terhadap variasi sebaran suhu dan klorofil-a terhadap hasil tangkapan ikan cakalang di Selat Lombok pada periode tahun 2008. Data yang digunakan yaitu suhu, klorofil-a, arus permukaan dan hasil tangkapan ikan cakalang. Hasil visualisasi menunjukkan pada musim barat, suhu permukaan lautnya cukup tinggi yaitu berkisar 26,62-31,12oC dan konsentrasi klorofil-a sebesar 0,056-0,978mg (m-3)-1 dengan arah arus cenderung ke timur laut dengan kecepatan 0,0250-0,4439 m/detik. Pada musim peralihan I suhu permukaan lautnya sedikit mengalami penurunan yaitu berkisar 26,77-30,30oC dan dan diikuti dengan kenaikan konsentrasi klorofil-a sebesar 0,073-0,732mg (m-3)-1 dengan arah arus cenderung ke timur dengan kecepatan 0,0640-0,8123 m/detik. Pada musim timur suhu permukaan lautnya cukup rendah yaitu berkisar 24,30-29,33oC dan dan diikuti dengan kenaikan konsentrasi klorofil-a sebesar 0,149-0,989mg (m-3)-1 dengan arah arus ke tenggara dengan kecepatan 0,4351-1,1813 m/detik. Pada musim peralihan II suhu permukaan lautnya kembali naik yaitu berkisar 25,12-31,05oC dan dan diikuti dengan penurunan konsentrasi klorofil-a sebesar 0,096-0,946mg (m-3)-1 dengan arah arus ke tenggara dengan kecepatan 0,1129-0,7336 m/detik. Hubungan antara suhu dan klorofil-amenunjukkan adanya variasi akan tetapi pada suhu yang hangat dan klorofil-a yang cukup tinggi terdapat hasil tangkapan yang cukup tinggi yaitu pada bulan September-November.Kata kunci : Arlindo; Selat Lombok; Ikan Cakalang

Bioakumulasi residu pestisida pada komunitas gastropoda di perairan Sungai Kalisat, Kabupaten Malang Nanik Retno Buwono; Trinita Gultom; Setya Widi Ayuning; Supriatna Supriatna
Depik Vol 8, No 3 (2019): December 2019
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Abstract. Gastropods can respond to pesticide pollution in the environment because their life is relatively sedentary and their movements are very limited. The character of pesticides are not selective and persistent can result in bioaccumulation of pesticide content in gastropod. Hence, the aim of the study was to determine the levels of pesticide residues that accumulate in the gastropod body at Kalisat River, Malang Regency. The pesticide residues in gastropods was measured using High Performance Liquid Chromatography (HPLC). Data were analyzed descriptively comparative or compared with the quality standards which exceeded the maximum residual limit set by the EU Pesticide Database. The results showed that pyrethroid pesticides were found with the active ingredient beta-cyfluthrin (mean 0.05 mg/g) and carbamate group with three highest active ingredients namely propoxur (average value of 0.15 mg/g), carbofuran (average value of 0.16 mg/g) and carbaryl (average value of 0.11 mg/g). Bioaccumulation factor values at all stations are greater than 1 (BAF1) that indicates the gastropods can accumulate pesticide residues.Keywords: bioaccumulation, gastropod, pesticide residues, Kalisat River Abstrak. Gastropoda dapat memberikan respon terhadap pencemaran pestisida di lingkungan karena hidupnya relatif menetap dan pergerakannya sangat terbatas. Sifat pestisida yang tidak selektif dan persisten dapat mengakibatkan terjadinya bioakumulasi atau penumpukan kandungan pestisida dalam tubuh gastropoda. Penelitian ini bertujuan untuk mengetahui kadar residu pestisida yang terakumulasi dalam tubuh gastropoda di Sungai Kalisat, Kabupaten Malang. Pengukuran residu pestisida pada gastropoda menggunakan alat High Performance Liquid Chromatography (HPLC). Hasil pengukuran menunjukkan bahwa ditemukan pestisida golongan piretroid dengan bahan aktif jenis beta siflutrin (rerata 0,05 mg/g) dan golongan karbamat dengan tiga jenis bahan aktif tertinggi, yaitu propoksur (rerata 0,15 mg/g), karbofuran (rerata 0,16 mg/g) dan karbaril (rerata 0,11 mg/g). Data dianalisis secara deskriptif komparatif atau dibandingan dengan baku mutu EU Pesticide Database tahun 2019 telah melebihi batas maksimum residu yang ditetapkan oleh EU Pesticide Database. Nilai faktor bioakumulasi pada seluruh stasiun lebih besar dari 1 (BAF1) yang menunjukkan bahwa gastropoda mampu mengakumulasi residu pestisida. Pestisida dapat ditemukan pada gastropoda dengan melalui difusi langsung dari lingkungan dan juga melalui proses pencernaan gastropoda. Kata kunci: bioakumulasi, gastropoda, residu pestisida, Sungai Kalisat

Iktiofauna Sungai Sangkir Kabupaten Rokan Hulu Provinsi Riau (Ichthyofauna of Sangkir River, Rokan Hulu District Riau Province) Nunuk Dian Pranata; Arief Anthonius Purnama; Rofiza Yolanda; Ria Karno
Depik Vol 5, No 3 (2016): December 2016
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

This study was conducted in Sangkir river branch of Rokan Kiri river Sangkir village, Rokan Hulu district, Riau Province from May of July 2016. The aim of this study was to inventory the fish species in Sangkir river branch of Rokan Kiri River with direct observation (survey). Five sampling locations were determined purposely based on the environmental condition that could be represented by the river condition. A total of 288 individuals of fish belonging to 3 orders, 7 families, 13 genera and 16 species were recorded in this study, namely Barbodes balleroides, Barbodes gonionotus, Barbichthys leavis, Channa striata, Cyclocheilichthys apogon, Labiobarbus fasciatus, Mystus nigriceps, Ompok eugeneiatus, Osteochilus hasseltii, Osteochilus mycrocephalus, Pangio semicincta, Pristolepis grooti, Thynnichthys polylepis, Trichogaster leerii, Trichogaster trichopterus and Trichopsis vittata. Cyprinidae was the most abundance fish in this study.Penelitian ini telah dilaksanakan di sungai Sangkir, anak sungai Rokan Kiri, desa Sangkir, Kabupaten Rokan Hulu, Provinsi Riau pada bulan Mei sampai Juli 2016. Penelitian ini bertujuan untuk mengetahui jenis-jenis ikan di sungai Sangkir anak Sungai Rokan Kiri dengan metode pengamatan langsung (survei) dengan penetapan stasiun pengambilan sampel secara purposive sampling. Penetapan stasiun berdasarkan kondisi lingkungan yang terdiri dari 5 stasiun penelitian. Hasil penelitian didapatkan sebanyak 288 individu ikan yang terdiri dari 3 ordo, 7 famili 13 genus dan 16 spesies. Spesies yang didapatkan yaitu Barbodes balleroides, Barbodes gonionotus, Barbichthys leavis, Channa striata, Cyclocheilichthys apogon, Labiobarbus fasciatus, Mystus nigriceps, Ompok eugeneiatus, Osteochilus hasseltii, Osteochilus mycrocephalus, Pangio semicincta, Pristolepis grooti, Thynnichthys polylepis Trichogaster leerii, Trichogaster trichopterus dan Trichopsis vittata. Cyprinidae merupakan kelompok ikan yang paling banyak dalam penelitian ini.

Dynamics of plankton populations as natural food for fish in a tributary of the Ogan River Elva Dwi Harmilia; Khusnul Khotimah; Irkhamiawan Ma'ruf; Intan Pratiwi
Depik Vol 11, No 2 (2022): August 2022
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

The research was conducted to determine the abundance, diversity, uniformity, and dominance of plankton in fish stomachs and waters that are expected to provide information about water productivity. The research was carried out in a tributary of the Ogan River, Indralaya District, Ogan Ilir Regency, South Sumatra at three stations, namely Indralaya Mulya Village, Tanjung Seteko Village and Muara Penimbung Village. The method used field surveys and location determination using purposive sampling with fish stomach contents, water samples for plankton observations, and water quality parameters. Fish sampling was carried out six times in 3 months, and water samples for plankton observations were one time per month, from April to June 2018. Plankton is found in fish stomachs and waters with a total abundance of 35.6 - 448.12 ind/l plankton consisting of 8 divisions with 11 classes. The plankton diversity index has moderate diversity and moderate community stability with a value between 1.11 - 1.45. The uniformity index of plankton in the fish stomach showed small uniformity of plankton (0.41-0.67), while in the waters, at station three and station 1 in April, the uniformity was high (E values 0.72 and E 0.93). The value of the plankton dominance index is in the range of 0.27-0.37. No species dominate other species or D = 0 (0.5), with moderately polluted water quality

Pola pertumbuhan dan faktor kondisi ikan sembilang (Potosus canius) di Teluk Bintan Kepulauan Riau Tri Yulianto; Wiwin Kusuma Atmadja; Zulpikar Zulpikar; Risma Ariska; Ani Suryanti
Depik Vol 9, No 3 (2020): December 2020
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

One of the economically important fish included in the Plotosidae family is the Sembilang Fish. This study aims to determine the growth patterns and condition factors of the Sembilang fish. The research was conducted in July 2018. The locations of the Sembilang Fish sampling station include Dompak Island Bay, Bugis Village Bay, Madong Bay, Pengujan Bay and Tanjung Uban. The total sample of Sembilang Fish that has been obtained is 150, consisting of 80 males and 70 females. Total length ranges from 19.7-66 cm, with weights ranging from 33.68-960 g. The mode of distribution of the frequency of the fish caught during the study was in the second class interval, namely 25.7-30.7. The relationship between the length and weight of male Sembilang fish is W = 0, 0268L2,5378 and the female is W = 0, 00542L2,3347. The growth pattern of Sembilang fish, both male and female, is negative allometric which shows the length growth is faster than the weight. Fish condition factors obtained during the study ranged from 0.723 to 1.166.Keywords:BintanCondition FactorLength-weight-relationshipPlotosus caniusSembilang fish ABSTRAKSalah satu ikan ekonomis penting yang termasuk dalam famili Plotosidae adalah Ikan Sembilang. Penelitian ini bertujuan untuk mengetahui pola pertumbuhan dan faktor kondisi ikan sembilang. Penelitian dilaksanakan pada bulan Juli 2018. Lokasi stasiun pengambilan sampel Ikan Sembilang diantaranya Teluk Pulau Dompak, Teluk Kampung Bugis, Teluk Madong, Teluk Pengujan dan Tanjung Uban. Total sampel Ikan Sembilang berjumlah 150 ekor, terdiri dari 80 ekor jantan dan 70 ekor betina. Ukuran panjang total berkisar antara 19,7-66 cm, dengan berat berkisar antara 33,68-960 g. Modus distribusi frekuensi ikan sembilang yang tertangkap selama penelitian ada pada selang kelas kedua yaitu 25,7-30,7. Hubungan panjang dan bobot Ikan Sembilang jantan adalah W = 0, 0268L2,5378 dan betina adalah W = 0, 00542L2,3347. Pola pertumbuhan Ikan Sembilang baik jantan maupun betina adalah alometrik negatif yang memperlihatkan pertumbuhan panjang lebih cepat daripada bobotnya. Faktor kondisi ikan selama penelitian nilainya berkisar antara 0,723 hingga 1,166.Kata kunci: BintanFaktor kondisiHubungan panjang-bobotPlotosus caniusIkan Sembilang

Pengaruh ENSO (El Niño and Southern Oscillation) terhadap transpor massa air laut di Selat Malaka Muhammad M; Syamsul Rizal; Junaidi M. Affan
Depik Vol 1, No 1 (2012): April 2012
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Abstract. This research examines the influence of ENSO (El Niño and Southern Oscillation) in the Malacca Strait with the southern oscillation index using the Pacific Ocean in determining the condition of Normal, El Niño and La Nina as the analysis of mass transpor of sea water, sea surface elevation and the density of the sea. The research methods using the Navier-Stokes equations with force generating tides, winds from the National Centers for Environmental Prediction (NCEP) Year 1980- 007, salinity(Levitus and Boyer, 1994a) and temperature (Levitus and Boyer, 1994b). Equations of motion of the sea water were modeled with the model of Hamburg Shelf Ocean Model (HAMSOM). The results show that the transport in northwestern part of the Malacca Strait is lower, but in the southeastern part is stronger compared to that of in Normal and La Nina events. While in Sea Level Elevation at El Niño event is lower compared to that of in Normal and La Nina events. For sea surface density, the density values are 18.5 s/d 20.5 kg/m3 while for the later 30-50 m, the values are 19-21 kg/m3. Sea surface density and density for layer 30-50 m in th southeastern part of Malacca Strait for El Niño events are higher than that of in normal and La Nina event. Key words: Sea level elevation, sea density and Hamsom model

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Ichsan Setiawan

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