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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.
Arjuna Subject : -
Articles 394 Documents
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Analisis Hubungan Kandungan klorofil dan Kelimpahan Plankton di Perairan Kuala Samboja, Kabupaten Kutai Kartanegara, Kalimantan Timur Nurfadilah Nurfadilah; Muhammad Syahrir R; Irma Suryana
Jurnal Kelautan Vol 16, No 1: April (2023)
Publisher : Department of Marine Sciences, Trunojoyo University of Madura, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/jk.v16i1.15891

Abstract

ABSTRAKKuala Samboja merupakan salah satu perairan yang ada di Kabupaten Kutai Kartanegara dengan hasil perikanan yang tinggi dibandingkan dengan kecamatan lainnya. Penelitian ini bertujuan untuk melihat kondisi produktivitas perairan berdasarakan parameter kelimpahan plankton, klorofil dan parameter lingkungan lainnya. Penelitian ini dilaksanakan pada Agustus 2021 di Perairan Kuala Samboja Kutai Kartanegara, pengambilan sampel plankton, klorofil, dan parameter fisika perairan diambil secara horizontal diperairan. Alat yang digunakan untuk analisis klorofil yaitu spektrofotometer dan dianalisis menggunakan metode American Public Health Association, sedangkan parameter kimia perairan diukur di laboratorium. Hasil penelitin ini didapatkan bahwa nilai parameter kualitas lingkungan masih dalam standar baku mutu Republik Indonesia No. 22 Tahun 2021, Lamp VIII (Biota Laut) yaitu kandungan klorofil-a di perairan pesisir Kuala Samboja berkisar antara 0,013-0,0975 mg/L dan kelimpahan plankton berkisar 2835-4158 ind/L nilai tersebut tergolong cukup tinggi untuk suatu perairan. Hasil analisis Principal Component Analysis menunjukkan hubungan antara klorofil dan plankton bersifat positif sedangkan hasil hubungan parameter fisika dan kimia perairan bersifat negatif.Kata kunci: Produktivitas Perairan, Klorofil, Plankton, Kuala SambojaABSTRACTKuala Samboja is one of the waters in Kutai Kartanegara Regency with high fishery output compared to other sub-districts. This study aims to see the condition of water productivity based on parameters limiting plankton, chlorophyll and other environmental parameters. This research was carried out in August 2021 in Kuala Samboja Waters Kutai Kartanegara, taking samples of plankton, chlorophyll, and water glass parameters taken horizontally in the waters. The instrument used for chlorophyll analysis was a spectrophotometer and analyzed using the American Public Health Association method, while the chemical parameters of the waters were measured in the laboratory. The results of this study found that the environmental quality parameter values were still in the quality standards of the Republic of Indonesia No. 22 of 2021, Lamp VIII (Marine Biota), namely the chlorophyll-a content in the coastal waters of Kuala Samboja ranges from 0.013-0.0975 mg/L and flood plankton ranges from 2835-4158 ind/L, this value is quite high for such waters. The results of the Principal Component Analysis show that the relationship between chlorophyll and plankton is positive, while the results of the relationship between physical and chemical parameters of the waters are negative.Keywords: Water Productivity, Chlorophyll, Plankton, Kuala Samboja
Pemodelan Hidrodinamika Pola Arus dan Kaitannya Terhadap Distribusi Sampah Laut di Perairan dan Pesisir Kota Tanjung Pinang Septhi Dwi Nursyahnita; Fadhliyah Idris; Mario Putra Suhana; Aditya Hikmah Nugraha; Try Febrianto; Asep Ma'mun
Jurnal Kelautan Vol 16, No 1: April (2023)
Publisher : Department of Marine Sciences, Trunojoyo University of Madura, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/jk.v16i1.15431

Abstract

ABSTRAKPerairan Kota Tanjungpinang memiliki kompleksitas tinggi dengan berbagai bentuk pemanfaatan lingkungan. Aktivitas tersebut menyebabkan peningkatan buangan bahan pencemar organik maupun anorganik ke perairan. Distribusi sampah laut yang tidak tenggelam ke dasar perairan akan hanyut dan mengendap di sepanjang pantai. Proses ini sangat dipengaruhi oleh faktor hidro-oseanografi seperti arus. Penelitian ini bertujuan untuk mengetahui keterkaitan arus laut terhadap distribusi sampah laut di perairan. Pengambilan sampel sampah laut menggunakan metode line transect untuk pengambilan sampel di pantai dan pengambilan sampel di laut menggunakan Manta Net. Pengukuran arus, pasang surut, batimetri dan kecepatan angin dilakukan secara langsung di lapangan. Analisis pola arus menggunakan model hidrodinamika untuk mensimulasikan pola arus di lokasi penelitian. Saat kondisi pasang, arus bergerak dari utara menuju selatan dengan kecepatan 0,15-0,24 m/s. Sedangkan saat surut, arus bergerak dari selatan menuju utara dengan kecepatan 0,00-0,09 m/s. Plastik merupakan jenis sampah laut dengan tingkat kepadatan tertinggi yang paling banyak ditemukan, baik yang berukuran makro maupun meso. Sirkulasi arus diduga memberikan pengaruh terhadap distribusi sampah laut di lokasi penelitian. Ketika perairan dalam kondisi pasang, sampah laut dengan massa yang lebih ringan akan terbawa ke pantai. Pada saat surut, kecepatan arus yang cenderung jauh lebih lemah menyebabkan sampah laut akan tertinggal di pantai.Kata kunci: Arus Laut, Hidro-Oseanografi, Kota Tanjungpinang, Sampah LautABSTRACTThe waters of Tanjungpinang City have a high complexity with various of environmental utilization. This activity leads to increased discharge of organic and inorganic pollutants into the waters. The distribution of marine debris that does not sink to the bottom of the water will be washed away and settle along the coast. This process is strongly influenced by hydro-oceanographic factors such as currents. This study aims to determine the relationship between ocean currents and the distribution of marine debris in the waters. Marine debris sampling using line transect method for beach samples and Manta Net for marine sampling. Measurements of currents, tides, bathymetry and wind speed are carried out directly in the field. Current patterns analysis using hydrodynamic models to simulate current patterns. During high tide conditions, the current moves from north to south at a speed of 0,15-0,24 m/s. While at low tide, the current moves from south to north at a speed of 0,00-0,09 m/s. Plastic is the highest density type of marine debris found, either macro and meso. Current circulation have an influence on the distribution of marine debris. At high tide conditions, marine debris with a lighter mass will be carried to the beach. At low tide, the speed of the current which tends to be much weaker causes marine debris to be left on the beach.Keywords: Hydro-Oceanography, Marine Debris, Sea Current, Tanjungpinang City
Korelasi Kelimpahan Biota Bentik Pemakan Karang terhadap Kesehatan Terumbu Karang di Perairan Pulau Sabu Raijua, Nusa Tenggara Timur Zihan Yuniar; Indah Riyantini; Lantun Paraditha Dewantii; Ofri Johan; Mochammad Rudyansyah Ismail
Jurnal Kelautan Vol 16, No 1: April (2023)
Publisher : Department of Marine Sciences, Trunojoyo University of Madura, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/jk.v16i1.11570

Abstract

ABSTRAKBiota bentik pemakan karang (Acanthaster planci, Drupella sp. dan Coralliophila sp.) merupakan predator karang yang dapat memangsa karang. Riset ini bertujuan untuk mengetahui kondisi terumbu karang, kelimpahan biota bentik pemakan karang dan bagaimana korelasi kelimpahan biota bentik pemakan karang terhadap kesehatan terumbu karang. Riset ini dilakukan pada bulan Mei – April 2021 menggunakan metode UPT (Underwater Photo Transect) untuk pengamatan terumbu karang dan metode Belt Transect untuk pengamatan kelimpahan biota bentik pemakan karang. Parameter kualitas perairan yang diukur meliputi salinitas, pH, kecerahan, kecepatan arus, nitrat dan fosfat.  Tutupan terumbu karang hidup di Perairan Pulau Sabu Raijua berkisar antara 16% - 58,72% dengan rata-rata 35,90% yang termasuk kedalam kategori “buruk – baik”. Kelimpahan biota bentik pemakan karang masih dalam batas normal yaitu Drupella sp. 0 – 0,23 ind/m2 dan Coralliophila sp. 0 – 0,07 ind/m2. Hasil analisis regresi linear menunjukan tidak terdapat korelasi antara kelimpahan biota bentik pemakan karang dan kesehatan terumbu karang di Pulau Sabu Raijua, Nusa Tenggara Timur.Kata kunci: Acanthaster planci, Coralliophila sp., Drupella sp., Kesehatan Terumbu Karang, Pulau Sabu RaijuaABSTRACTCoral-eating benthic biota (Acanthaster planci, Drupella sp. and Coralliophila sp.) are coral predators that can prey on corals. This research aims to determine the condition of coral reefs, the abundance of benthic coral-eating biota and how the correlation between the abundance of coral-eating benthic biota on the health of coral reefs. This research was conducted in May – April 2021 using the UPT (Underwater Photo Transect) method to observe coral reefs and the Belt Transect method to observe the abundance of coral-eating benthic biota. Water quality parameters measured include salinity, pH, brightness, current velocity, nitrate and phosphate. The live coral reef cover in the waters of Sabu Raijua Island ranges from 16% - 58.72% with an average of 35.90% which is included in the "bad - good" category. The abundance of coral-eating benthic biota was still within normal limits, namely Drupella sp. 0 – 0.23 ind/m2 and Coralliophila sp. 0 – 0.07 ind/m2. The results of the linear regression analysis showed that there was no correlation between the abundance of benthic coral-eating biota and the health of coral reefs on Sabu Raijua Island, East Nusa Tenggara.Keywords: Acanthaster planci, Coralliophila sp., Drupella sp., Coral Reef Health, Sabu Raijua Island
Variasi dan Komposisi Bentuk Pertumbuhan Karang (Life Form) di Perairan Bintan Timur Rizki Abdullah; Ita Karlina; Dedy Kurniawan; Risandi Dwirama Putra; Asep Mulyono
Jurnal Kelautan Vol 16, No 1: April (2023)
Publisher : Department of Marine Sciences, Trunojoyo University of Madura, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/jk.v16i1.15212

Abstract

ABSTRAKPenelitian ini mengkaji tentang keanekaragaman bentuk kehidupan pertumbuhan karang di perairan Bintan bagian timur. Tujuan penelitian ini adalah untuk mengetahui bentuk kehidupan bentuk life form karang dan untuk mengetahui persentase jenis tutupan terumbu karang, indeks keanekaragaman, keseragaman. Indeks dan indeks dominasi spesies di Bintan bagian timur. Penelitian ini dilakukan dengan menggunakan metode under photo transect (UPT) dengan panjang transek garis yang digunakan adalah 50m dengan luas pemotretan (58 x 44) cm2. Hasil penelitian menunjukkan bahwa pada stasiun satu di perairan Kawal persentase tutupan karang hidup sebesar 41.80% termasuk dalam kategori sedang. Ada 8 jenis pertumbuhan karang bentuk kehidupan, yaitu CM, CF, ACE, ACT, CS, CE, CB, CMR. Pada stasiun dua di perairan Teluk Bakau persentase tutupan karang hidup sebesar 47,40% dikategorikan sedang. Ada 7 jenis pertumbuhan karang bentuk kehidupan yang ditemukan, yaitu CM, CF, CE, CS, ACT, ACS, ACE. Pada stasiun tiga perairan Malang Rapat persentase tutupan karang hidup sebesar 41,53% termasuk kategori sedang. Ada 9 jenis pertumbuhan karang bentuk kehidupan yang ditemukan, yaitu CM, ACE, CS, CF, CE, CMR, ACS, ACT, CB.Kata kunci: Keanekaragaman, Life form Coral, Under Photo Transect (UPT),Tutupan karang, Perairan Bintan TimurABSTRACTThis research examines the diversity of life form coral growth in the waters of the eastern part of Bintan.The purpose of this research aimed to determine the growth form of life form corals the percentage of coral reef cover types, diversity index, uniformity index and species dominance index in the eastern part of Bintan. This research was conducted using the under photo transect (UPT) method with the length of the line transect used was 50m with a photo area (58 x 44) cm2. The results showed that at station one in Kawal waters, the percentage of life coral cover was 41.80%, categorized as medium. There were 8 types of life form coral growth, namely CM, CF, ACE, ACT, CS, CE, CB, CMR. At station two in the waters of the Teluk Bakau, the percentage of live coral cover was 47,40% categorized as moderate. There were 7 types of life form coral growth found, namely CM, CF, CE, CS, ACT, ACS, ACE. At station three in Malang Rapat waters, the percentage of live coral cover was 41,53% categorized as medium. There were 9 types of life form coral growth found, namely CM, ACE, CS, CF, CE, CMR, ACS, ACT, CB.Keywords: Diversity, Life form coral, Under Photo Transect (UPT), Coral cover, East Bintan waters
Perbedaan Lama Perendaman Gill Net Terhadap Hasil Tangkapan Udang Mantis di Kelurahan Mendahara Ilir Suratinah Suratinah; Lisna Lisna; Fauzan Ramadan; Afriani H
Jurnal Kelautan Vol 16, No 1: April (2023)
Publisher : Department of Marine Sciences, Trunojoyo University of Madura, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/jk.v16i1.14702

Abstract

ABSTRAKTujuan dari penelitian ini adalah untuk mengetahui perbedaan lama perendaman alat tangkap gill net pada hasil tangkapan udang mantis (Harpiosquilla raphidea) di perairan Mendahara Ilir. Penelitian ini dilaksanakan pada tanggal 5 Desember 2022 sampai dengan 5 Januari 2022 di perairan Desa Mendahara Ilir. Metode yang digunakan adalah percobaan penangkapan ikan dengan 2 perlakuan yaitu 3 jam dan 4 jam perendaman. Analisis data dilakukan dengan menggunakan uji-T. Hasil penelitian menunjukkan bahwa hasil tangkapan udang mantis pada perendaman 3 jam adalah 445 ekor dan 540 ekor pada perendaman 4 jam. Berdasarkan ukuran, jumlah udang mantis terbanyak terdapat pada grade C (sedang), yaitu 165 ekor pada perendaman 3 jam dan 187 ekor pada perendaman 4 jam. Kesimpulan dari penelitian ini adalah hasil tangkapan udang mantis pada perendaman 4 jam lebih tinggi daripada udang mantis pada perendaman 3 jam.Kata kunci: Lama Perendaman, udang mantis, gillnet.ABSTRACTThe purpose..of this study was to..determine the difference in the duration of immersion of gill net fishing gear on the catch of mantis shrimp (Harpiosquilla raphidea) in Mendahara Ilir waters. This research was conducted from December 5, 2022 to January 5, 2022 in the waters of Mendahara Ilir Village. The method used is experimental fishing with 2 treatments, namely 3 hours and 4 hours of immersion. Data analysis was performed using the T-test. The results of this study showed that the catch of mantis shrimp at 3 hours of immersion was 445 fish and 540 fish at 4 hours of immersion. Based on size, the highest number of mantis shrimp was found in grade C (medium), which amounted to 165 tails at 3 hours of immersion and 187 tails at 4 hours of immersion. The conclusion of this study is that the catch of mantis shrimp at 4 hours of immersion is more than that of mantis shrimp at 3 hours of immersion.Keyword : Immersing, mantis shrimp, gillnet.
Pemodelan Dinamika Arus Permukaan Laut Alur Pelayaran Barat Surabaya Alvinas Anwar Saputro; Zainul Hidayah; Harish Wirayuhanto
Jurnal Kelautan Vol 16, No 1: April (2023)
Publisher : Department of Marine Sciences, Trunojoyo University of Madura, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/jk.v16i1.18269

Abstract

ABSTRAKAlur Perairan Barat Surabaya (APBS) merupakan salah satu kawasan transportasi laut tersibuk di Indonesia. Perairan ini adalah pintu masuk dan keluar kapal-kapal yang berlabuh atau meninggalkan pelabuhan-pelabuhan yang berada di Surabaya dan Gresik. Lokasi APBS yang berdekatan dengan muara sungai menyebabkan sedimentasi dan pendangkalan yang perlu diatasi. Informasi kecepatan dan arah arus permukaan laut penting sebagai data pendukung perawatan alur. Penelitian ini bertujuan untuk memberikan deskripsi dinamika arus permukaan laut melalui simulasi pemodelan hidrodinamika dan perbandingan karakteristiknya pada musim dan lokasi yang berbeda. Model hidrodinamika dibangun menggunakan data utama yaitu batimetri dan pasang surut yang divalidasi menggunakan pengukuran data ADCP. Waktu simulasi yang digunakan untuk pemodelan arus yaitu pada bulan Maret 2020 – Februari 2021. Hasil simulasi menjelaskan pola yang berbeda antara musim peralihan 1 dan musim timur dengan musim peralihan 2 dan musim barat. Pada musim peralihan 1 dan musim timur dengan musim peralihan 2 dan musim barat. Kecepatan rata-rata arus permukaan laut pada musim peralihan 1 dan musim timur 0,182 m/s sampai dengan 0,427 m/s dengan arah arus dari selatan dan tenggara menuju utara dan barat laut. Sedangkan pada musim peralihan 2 dan musim barat rata-rata kecepatan arus mencapai 0,183 m/s hingga 0,521 m/s dengan arah dari utara dan barat laut menuju selatan dan tenggara. Validasi model cukup baik dengan RMSE  0,037 dan MAPE 28,7%. Kata Kunci : model hidrodinamika, arus permukaan laut, simulasi. validasiABSTRACTThe Surabaya West Shipping Channel (APBS) is one of Indonesia's busiest sea transportation corridors.These waters serve as the entry and exit points for ships that dock or depart from Surabaya and Gresik ports.The proximity of the APBS to the river mouth causes sedimentation and siltation, which must be addressed.As support data for channel maintenance, information on the speed and direction of sea surface currents is essential.The purpose of this study is to provide a description of the dynamics of sea surface currents using hydrodynamic modeling simulations, as well as a comparison of their characteristics across seasons and locations. The main data, namely bathymetry and tides, were used to build the hydrodynamic model, which was validated using ADCP data measurements. Model simulation was conducted between March 2020 and February 2021.The simulation results explain the differences in patterns between transition season 1 and the east season, as well as transition season 2 and the west season. In the transition season 1 and the east season with the transition season 2 and the west season. The average speed of sea surface currents in the transition season 1 and the east season is 0.182 m/s to 0.427 m/s with the current direction from the south and southeast to the north and northwest. Whereas in the transition season 2 and the west season the average current speed reaches 0.183 m/s to 0.521 m/s in a direction from north and northwest to south and southeast. Model validation is sufficient, with an RMSE of 0.037 and a MAPE of 28.7%.Key Words : Hydrodinamic model, surface current, simulation, validation
Komposisi Sampah Laut (Makro Debris) Antropogenik di Kawasan Ekosistem Mangrove Desa Bolihutuo Kecamatan Botumoito Mohammad Eki Julkifli Samu; Faizal Kasim; Miftahul Khair Kadim
Jurnal Kelautan Vol 16, No 1: April (2023)
Publisher : Department of Marine Sciences, Trunojoyo University of Madura, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/jk.v16i1.13428

Abstract

ABSTRAKPenelitian ini bertujuan untuk mengetahui komposisi sampah makro (makro debris) antropogenik di kawasan ekosistem mangrove Desa Bolihutuo Kecamatan Botumoito. Penelitian dilaksanakan pada Bulan Juli 2021. Pengambilan sampel dilakukan berdasarkan sebaran mangrove yang membentuk dua area, sehingga stasiun penelitian dibuat menjadi dua stasiun. Untuk penempatan transek garis ditentukan berdasarkan sebaran horizontal. Pada stasiun I dibuat dua garis transek dan stasiun II menjadi tiga garis transek, dimana jarak antar transek ditentukan berdasarkan sampah yang ditemukan pada mangrove di daerah darat sehingga menjadi titik awal penarikan garis transek dari darat kearah laut. Untuk pengambilan sampel menggunakan kuadran 10x10 m2 dengan jarak antar kuadran adalah 10 m. Hasil pengamatan menunjukkan bahwa komposisi sampah makro di  kawasan ekosistem mangrove Desa Bolihutuo menghasilkan tiga kelompok besar jenis sampah, yakni plastik, busa plastik, serta kaca dan keramik. Dominasi sampah terbesar yakni sampah jenis plastik, sedangkan jumlah sampah yang terendah yaitu sampah kaca dan keramik. Kata Kunci: Sampah laut, Mangrove, Bolihutuo.ABSTRACKThis study aims to determine the composition of antrophogenic macro debris in the mangrove ecosystem area of Bolihutuo Village, Botumoito Subdistrict.  Sampling was carried out in July 2021. Sampling based on the distribution of mangrove that formed two areas so that the research station was made into two. The placement of line transects is determined based on the horizontal distribution. Stasion I is made up of two transect line and Station II is made up of three uniform transect lines. The distance between the transect is determined based on the waste found in the mangrove on land so that it becomes the starting point for drawing transect lines from land to sea. Sampling used a 10x10 m2 quadrant with a distance between the quadrants of 10 m. observations showed that the composition of macro debris in the mangrove ecosisytem area produced three large group of waste: plastic, plastic foam, glass and ceramics. The most dominant waste is plastic, while the least quantity is glass and ceramics.keywords: Marine debris, Mangrove, Bolihutuo.
Kajian Pengembangan Wisata Peneluran Penyu di Pantai Nipah, Lombok Utara Sebagai Destinasi Ekowisata Edukasi Penyu Talitha Kineta; Agus Indarjo; Munasik Munasik
Jurnal Kelautan Vol 16, No 1: April (2023)
Publisher : Department of Marine Sciences, Trunojoyo University of Madura, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/jk.v16i1.15386

Abstract

ABSTRAKPenyu termasuk ke dalam daftar merah IUCN dan keberadaannya terancam punah. Kegiatan pemanfaatan penyu kerap terjadi di berbagai daerah di Indonesia, seperti yang terjadi di Pantai Nipah. Selain itu, gangguan pada habitat peneluran penyu, seperti kerusakan vegetasi, pengalihfungsian lahan, dan kegiatan wisata menjadi faktor lain kepunahan penyu. Lokasi peneluran penyu di Pantai Nipah telah ditetapkan sebagai Kawasan Ekosistem Esensial (KEE) dan dikelola oleh TCC (Turtle Conservation Community) Nipah serta menjadi destinasi wisata, akan tetapi pengelolaan wisata di Pantai Nipah masih dalam proses pengembangan dan membutuhkan strategi pengelolaan wisata yang sesuai dengan kebutuhan. Penelitian ini bertujuan untuk mengkaji kesesuaian wisata penyu dengan menggunakan metode deskriptif dan purposive sampling untuk pengambilan data, accidental sampling untuk kuesioner, serta analisis kesesuaian wisata, daya dukung wisata, dan SWOT untuk menentukan strategi pengembangan wisata peneluran penyu. Indeks Kesesuaian Wisata peneluran penyu di Pantai Nipah sangat sesuai dengan nilai 79% dan daya dukung wisata maksimal 143 wisatawan per area 239,1 m2. Adapun arahan pengembangan wisata edukasi penyu perlu memerhatikan kondisi sarana dan prasarana yang disesuaikan dengan kesesuaian habitat penyu serta ditingkatkan kualitasnya. Peningkatan kesadartahuan masyarakat sekitar terhadap pentingnya melestarikan penyu, dan membuat perencanaan terstruktur untuk wisata edukasi penyu.Kata Kunci: Lombok Utara, TCC Nipah, wisata penyuABSTRACTSea turtle is included in the IUCN red list and its existence is threatened with extinction. Illegal sea turtle utilization activities often occur in various regions in Indonesia, as happened at Nipah Beach. The existence of sea turtles on Nipah Beach is increasingly threatened by disturbances to sea turtle nesting habitats, like vegetation damage, conversion of land into buildings, and tourism activities. The sea turtle nesting area on Nipah Beach has been designated as Essential Ecosystem Area (EEA) and managed by TCC (Turtle Conservation Community) Nipah and become a tourist destination, even though, tourism management on Nipah Beach is still in the process of being developed and requires a tourism management strategy that fits the needs. This study aims to examine the suitability of sea turtle tourism using descriptive and purposive sampling methods for data collection, accidental sampling for questionnaires, and analysis of tourism suitability, tourism carrying capacity, and SWOT, to determine the strategy for developing sea turtle nesting tourism. The Tourism Suitability Index for sea turtle nesting at Nipah Beach is very suitable with a value of 79% and a maximum tourism carrying capacity of 143 tourists per area of 239.1 m2 . The direction for the development of turtle educational tourism, it is necessary to pay attention to the condition of facilities and infrastructure that are adapted to the suitability of sea turtle habitats and to improve their quality. Increasing the awareness of the local community about the importance of conserving sea turtles, and making structured plans for sea turtle educational tours.Keywords: North Lombok, TCC Nipah, sea turtle edutourism
Kajian Mikroplastik Pada Ikan Ekonomis di Pasar Tradisional Kota Palu Roni Hermawan; Mohamad Akbar; Mubin Mubin; Alismi M Salanggon; Anita Treisya Aristawati; Renol Renol; Finarti Finarti; Eka Aji Pramita; Yeldi S Adel; Didit Kustantio Dewanto; Mohamad Syahril
Jurnal Kelautan Vol 16, No 1: April (2023)
Publisher : Department of Marine Sciences, Trunojoyo University of Madura, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/jk.v16i1.17566

Abstract

ABSTRAKMikroplastik merupakan luruhan dari serpihan plastik yang terbuang atau sengaja dibuang ke laut. Dampak dari cemaran mikroplastik ini sangat berbahaya, terlebih lagi jika masuk kedalam jaringan tubuh hewan bahkan manusia. Ketergantungan konsumsi lokal tersebut menyebabkan tingginya resiko terpapar cemaran mikroplastik dari ikan laut yang dipasarkan melalui pasar-pasar tradisional. Tujuan penelitian ini adalah menghitung konsentrasi mikroplastik pada sistem pencernaan ikan laut konsumsi pada pasar tradisional di Kota Palu dan mengkaji jenis kandungan plastik yang terdapat pada pencernaan ikan konsumsi tersebut. Sampling ikan yang diambil adalah ikan laut yang dipasarkan di 4 (empat) pasar tradisional Kota Palu, sampel yang diambil adalah ikan yang segar dan biasa dikonsumsi masyarakat. Pengukuran mikroplastik dilakukan dengan metode destruksi bahan organik pada saluran pencernaan ikan menggunakan larutan KOH 10% dan H2O230% hingga 50%, perendaman antara 48 hingga 72 jam. Sampel diamati menggunakan mikroskop, untuk memastikan bahwa objek adalah mikroplastik metode Hot Needle Test. Berdasarkan pengamatan diperoleh hasil Ikan Kembung (Rastrelliger kanagurta) terdapat kandungan mikroplastik sebesar 0,375 item/ind atau 0,022 item/gr berat badan ikan, jenis mikroplastik yang ditemukan adalah jenis serpihan plastik. Ikan Baronang (Siganus canaliculatus) ditemukan kandungan mikroplastik sebesar 3,75 item/ind atau 0,071item/gr berat badan ikan, jenis mikroplastik yang ditemukan adalah jenis serpihan dan serat.Kata Kunci: mikroplastik, ikan, pencernaan, konsumsi, pasarABSTRACTMicroplastics are the decay of plastic flakes that were wasted or deliberately thrown into the sea. The impact of microplastic contamination is very dangerous, especially if it enters the body tissues of animals and even humans. This dependence on local consumption causes a high risk of exposure to microplastic contamination from marine fish marketed through traditional markets. The purpose of this study was to calculate the concentration of microplastics in the digestive system of consumption fish at traditional markets in Palu City and to examine the types of plastic content found in the digestion of consumption fish. The fish samples taken were marine fish marketed in 4 (four) local markets in Palu City, the samples were fresh fish and commonly consumed by locals. Microplastic measurements were carried out by the method of destroying organic matter in the digestive tract of fish using a 10% KOH solution and 30% to 50% H2O2, soaking between 48 to 72 hours. The samples were observed using a microscope, to ensure that the objects were microplastic using the Hot Needle Test method. Based on observations, it was found that mackerel (Rastrelliger kanagurta) contained a microplastic content of 0.375 item/ind or 0.022 item/gr fish body weight, the type of microplastic found was a type of plastic flake. Baronang fish (Siganus canaliculatus) was found to contain microplastics of 3.75 items/ind or 0.071 items/gr fish body weight, the types of microplastics found were flakes and fibers.Keywords: Microplastic, fish, digestion, consumption, local market
The Effect of Shipbuilding Material Type on Biofouling Growth at Boom Marina, Banyuwangi, East Java, Indonesia Wazirotus Sakinah; Ramli Firdaus Kusnadi; Dwi Bagus Prasetiaji; Pandu Prasetya Aji; R. Puranggo Ganjar Widityo; Franciscus Xaverius Kristianta
Jurnal Kelautan Vol 16, No 1: April (2023)
Publisher : Department of Marine Sciences, Trunojoyo University of Madura, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/jk.v16i1.17964

Abstract

ABSTRACTThe presence of biofouling has an impact on the ship’s performance, which is reduced to require more fuel, in the end, it contributes significantly to cost increases. Biofilms provide a suitable substrate for the growth of microorganisms. Ship hull as a substrate for biofilms has many kinds of material. Steel, wood, laminated bamboo, and fiber are often used for ship hulls. Different material makes different characteristics of substrate for biofilms. The aim of this research is to determine the growth rate of biofouling in each shipbuilding material and to find out which vessel material is suitable for use in the Bali Strait. The experiment was located in Boom Marina, Banyuwangi. The materials used in this research are wood, laminated bamboo, and fiber. The daily growth rate (DGR) is calculated every week of observation. Wood had the most biofouling with a DGR of 2,646 g/day. Laminated bamboo had the least biofouling in this research after 2 months of immersion with a DGR of 0,086 g/day. Keywords: Biofouling, shipbuilding material, daily growth rate.

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