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All Journal Journal of Marine and Aquatic Sciences Bumi Lestari Ecotrophic, Journal of Environmental Science DiH : Jurnal Ilmu Hukum Tadulako Law Review Journal of Economic, Bussines and Accounting (COSTING) Jurnal Pengelolaan Perikanan Tropis (Journal Of Tropical Fisheries Management) Bawal : Widya Riset Perikanan Tangkap Current Trends in Aquatic Science Journal of Marine Research and Technology Management Studies and Entrepreneurship Journal (MSEJ) INTERNATIONAL JOURNAL OF ENVIRONMENT AND GEOSCIENCES Ekobis: Jurnal Ilmu Manajemen dan Akuntansi Jurnal Ekonomi Jurnal Media Akuakultur Indonesia Proceeding of The International Conference on Economics and Business Jurnal Perikanan
I Wayan Arthana
Program Studi Manajemen Sumberdaya Perairan (Department Of Aquatic Resources Management) Universitas Udayana
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Energy Environmental Science Immunology & microbiology Law, Crime, Criminology & Criminal Justice Other

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Studi Kelimpahan dan Keanekaragaman Tumbuhan Air di Danau Tamblingan, Bali I Kadek Tobing Ascahya; I Wayan Arthana; Ni Putu Putri Wijayanti
Current Trends in Aquatic Science Vol 5 No 2 (2022)
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Kelautan dan Perikanan, Universitas Udayana

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Abstract

This research aimed to know the diversity abudance and water quality conditions of the life of aquatic plants in Lake Tamblingan. Sampling used methods of observation and purposive sampling. Analysis method used value of diversity indices and abudance. Aquatic plants discovered in Lake Tamblingan were 5 types, divided into 3 types of habitat, namely the type of free floating, floating leaved and emergent. Free float type (free floating) consists of Salvinia molesta, floating-leaved plants (floating leaved) consists of Myriophyllum aquaticum, Nymphoides indica plants sticking out (emergent) consists of Alternanthera philoxeroides, Persicaria decipiens. The highest diversity index value was in stations 3 (far from setlement) of 1,42. The highest abundance value of water plants found in station 2 (close to water recreation site) of 148,20 ind/m² with water plant species of Nymphoid indica. Water quality of DO, pH, Temperature, brightness, depth, nitrate and phosphate showed that the waters of Tamblingan Lake was still on the threshold for the growth of aquatic plants and the diversity was in the medium category.
Fluktuasi Nilai Fosfat dan Nitrat pada Pembesaran Ikan Nila Yang Diberi Tanaman Seledri (Apium graveolens) Rachmat Andi Saputra; I Wayan Arthana; Gde Raka Angga Kartika
Current Trends in Aquatic Science Vol 5 No 2 (2022)
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Kelautan dan Perikanan, Universitas Udayana

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Abstract

Aquaculture activities leads to increase the nitrate and phosphate due to nutrient input from the leftover fish farming feed. Nitrate and phosphate enrichment can be minimized by using concept of aquaponics and growing aquatic plants around the cultivation area. This study tries to find out the fluctuation nitrate and fosfat value on tilapia fish growing given celery (Apium graveolens) in tilapia fish farm. Celery plants were planted with three different treatments, namely the plants were planted using a flannel wick, the roots touched the water surface, and submerged beyond the plant roots to the stems. The results of observations for 1 month showed the highest average growth rate of celery (A. graveolens) in treatment A and the lowest in treatment C. The highest relative growth was in treatment A and the lowest was in treatment C. The highest survival was found in A and the lowest was in treatment C. The best phosphate absorption was in treatment B with 0.32 mg/L, and the lowest was in treatment C with 0.00 mg/L. The best nitrate uptake was in treatment A with 0.66 mg/L, and the lowest was in treatment B with 0.84 mg/L. The results of the One-Way ANOVA statistical test with Duncan's follow-up test showed significantly different treatments for phosohate and nitrate.
Karakteristik Sosial Ekonomi Nelayan Pemanfaat Hiu Tikus (Alopiidae) di Manggis, Karangasem, Bali Hanifa Miranda I.H. Putri; I Wayan Arthana; Elok Faiqoh; Ranny R. Yuneni; Yuniarti K. Pumpun
Journal of Marine and Aquatic Sciences Vol 8 No 2 (2022)
Publisher : Fakultas Kelautan dan Perikanan Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/jmas.2022.v08.i02.p14

Abstract

Thresher sharks are known to have substantial economic value. They are caught globally as target and as bycatch in tuna fisheries. Due to their declining population, they are listed as an appendix II species on CITES, therefore any form of trade and fisheries related to the species have been nationally and internationally regulated. However, information on thresher shark fisheries in Bali is still limited. This study aims to socio-economically characterize thresher shark fishermen in Manggis, Karangasem. The research was conducted in August 2020 – October 2020 by interviewing 53 out of 119 recorded shark fishermen using a structured questionnaire. Shark fishermen use surface longlines to catch thresher sharks (Alopiidae) in between 3 areas, North Nusa Penida-Karangasem, east Nusa Penida and Bangko-Bangko. The fishermen catch sharks exclusively during the months of June-October and catch tuna the rest of the year. Operational costs for 1 boat ranges between Rp 121.000 – Rp 250.000 during 1 round trip. The income generated from shark fishing each trip averages to about Rp 627.714 per boat. Prior to the Covid-19 pandemic, some of the fishermen work jobs in the tourism sector. However, due to the pandemic’s impact on tourism, they have no choice but to be fishermen full time. Although thresher shark fisheries in Manggis are generally small scale, conservation and management strategies need to be implemented to ensure sustainable use of shark resources.
Tingkat Kesejahteraan Nelayan Tradisional di Pantai Bias Lantang Desa Seraya Timur, Kabupaten Karangasem, Bali Luh Putu Diah Ananda Wijayanti; I Wayan Arthana; Gede Surya Indrawan
Journal of Marine Research and Technology Vol 6 No 1 (2023): FEBRUARI 2023
Publisher : Department of Marine Sciences, Faculty of Marine and Fisheries, Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/JMRT.2023.v06.i01.p07

Abstract

Most of the people living on the coast of Bias Lantang Beach, East Seraya Village, work as fishermen with the main catch being of tongkol. This research conducted to gain an insight about the welfare of traditional fishermen and exchange rate of fishermen (NTN) Coast of Bias Lantang Seraya Timur, Karangasem, Bali using BPS indicator and NTN. The population in this study research are all traditional fishermen that are on the Coast of Bias Lantang Seraya Timur. Sampling of these studies is done using calculations from Slovin analysis. As for the method used in this research is case study method with a descriptive analysis, in which data collection is done using a questionnaire and presented in the form of a chart. The results from the prepared questionnaire's data indicate the level of traditional fishermen's welfare and the NTN that was calculated using a NTN. According to BPS, as known traditional fishermen on Bias Lantang Beach Seraya Timur Village had a high score of welfare rates (high range of score 15-21) with total score 18. Whereas based on the NTN it is known that the value of the traditional fishermen on Bias Lantang Beach Seraya Timur Village is 0.95 while the results of NTN<1 showing that traditional fishermen tend to possess a low welfare rated. As a result, there is a difference between the traditional welfare of fishermen on the Bias Lantang Seraya Timur Village used the BPS indicator and the use of NTN. This is because of the welfare of traditional fishermen using BPS indicator methods such as income, expenses, education, health, place, facilities, and status of ownership, wherefrom the seven indicators four indicators had a high score of indicator (score 3). Whereas NTN consists of two indicators (income and expenses), where the expenses of fishermen are bigger than the income.
Analisis Laju Pertumbuhan Karang Acropora sp. Hasil Transplantasi di Pantai Geger Bunga Divia Arimbi; I Wayan Arthana; Ni Made Ernawati
Current Trends in Aquatic Science Vol 6 No 1 (2023)
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Kelautan dan Perikanan, Universitas Udayana

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Abstract

Coral transplantation is one of the efforts to rehabilitate a damaged coral reefs. The successful growth of transplantation is influenced by water quality. This study aims to determine the relation between water quality parameters and the growth rates of Acropora sp. transplantation in Geger Beach. This research was conducted for 3 months during February until Aprils 2022, carried out in every 2 weeks at difference point. The observations was measuring length, width, high, and the increased of total corals fragment. The results showed the averages of length growth rate is 1.39 mm/2 weeks on each points. While the high growth rate on point 1 and 2 had a 0.14 mm/2 weeks different high, and each point had a values of 0.61 mm/2 weeks and 0.76 mm/2 weeks. On the width growth rate, each of point had a values of 2.06 mm/2 weeks and 1.50 mm/2 weeks, with 0.56 mm/2 weeks difference. The average of increased total corals fragment has the same growth, with 2 fragment at each point. The quality of waters in Geger Beach supported the growth of coral transplantation with temperatures ranging from 29.50-29.60 °C, brightness of 100%, depth of 0.97-1.1 m, currents of 0.16-0.18 m/s, salinity of 33.33-33.16‰, pH of 7.80-7.87, and DO of 6.27-6.29 mg/l. The results of Pearson’s test showed that waters parameters have correlations and significant relationship with the growth rates of Acropora sp., with all the values of signification is more than 0.05.
Studi Laju Sedimentasi di Muara Sungai Perancak Menggunakan Pemodelan Numerik Pandu Pratama Putra; I Wayan Arthana; I Gede Hendrawan
Journal of Marine Research and Technology Vol 6 No 2 (2023): AGUSTUS 2023
Publisher : Department of Marine Sciences, Faculty of Marine and Fisheries, Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/JMRT.2023.v06.i02.p11

Abstract

Perancak is an estuary area with land use in mangroves and ponds. Land changes that have occurred at the Perancak River estuary and tidal flooding in recent years have increased the potential for sedimentation problems that can cause silting of the riverbed. This study aims to determine the sedimentation rate and identify the potential for siltation in the estuary of the Perancak River. Sediment modeling uses the Finite Volume Coastal Ocean Model (FVCOM) by entering primary and secondary data such as bathymetry, tides, temperature, salinity, river discharge, sediment type, and Total Suspended Solid (TSS) concentration. Modeling for 33 days (January - February 2022). The results showed that the sedimentation rate in the Perancak River estuary ranged from 0.25 to 18.8 kg/m2/day, with an average of 3.83 kg/m2/day. Sedimentation rates are high in the estuary areas and riverbanks bordering the mainland. The potential for siltation shows that it occurs at river mouths with a silting value of about 0.01 m/year to more than 0.05 m/year.
POLA KEMATIAN IKAN NILA PADA PROSES PENDEDERAN DENGAN SISTEM RESIRKULASI TERTUTUP DI SEBATU, BALI Ni Putu Ayustin Krisnati Dewi; I Wayan Arthana; Gde Raka Angga Kartika
Jurnal Perikanan Unram Vol 12 No 3 (2022): JURNAL PERIKANAN
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jp.v12i3.323

Abstract

Mortalitas ikan adalah nilai dari jumlah kematian ikan secara umum ataupun yang disebabkan oleh faktor tertentu seperti terjangkit penyakit, virus dan bakteri pada suatu populasi. Pola kematian ikan merupakan faktor penting dalam kegiatan budidaya khususnya pada tahap pendederan. Pola kematian ikan akan mempengaruhi hasil akhir dari benih ikan nila yang dapat diproduksi selama satu siklus pendederan berlangsung sehingga hal ini sangat penting untuk diteliti lebih lanjut. Kegiatan budidaya menggunakan kolam terpal dengan sistem resirkulasi tertutup sebagai alternatif karena dapat menghemat penggunaan lahan. Penelitian ini bertujuan untuk mengetahui pola kematian ikan dan penyebab dari kematian ikan pada kolam terpal dengan sistem resirkulasi tertutup. Penelitian ini dilakukan bulan April-Juni 2020 di Desa Sebatu, Gianyar, Bali. Penelitian ini menggunakan metode rancangan acak lengkap (RAL) dengan tiga perlakuan dan tiga pengulangan. Benih ikan yang digunakan berukuran 2-3 cm dengan padat tebar berbeda yaitu 200 ekor, 300 ekor, dan 400 ekor. Parameter yang diamati adalah SR (Survival Rate) dan kualitas air meliputi suhu, DO, pH, dan TDS. Hasil penelitian menunjukkan bahwa titik puncak kematian ikan uji terjadi pada awal penelitian yaitu pada hari ke-8 sebesar 29 ekor pada A1, 7 ekor pada A2, 8 ekor pada A3, 40 ekor pada B1, 6 ekor pada B2, 6 ekor pada B3, 5 ekor pada C1, 46 ekor pada C2, dan 13 ekor pada C3. Parameter kualitas air yang diukur meliputi suhu dengan rata-rata 24,69-24,7?C, pH dengan rata-rata 8,39-8,4, oksigen terlarut (DO) dengan rata-rata 6,55-6,6 mg/L, dan padatan terlarut (TDS) dengan rata-rata 160,6-160,87 mg/L.
Status Assessment of Fish Resources Domain Based on The Ecosystem Approach to Management of Frigate Tuna (Auxis thazard) Fishery in Lombok Strait Waters Landed in East Seraya Village, Bali: Penilaian Status Domain Sumber Daya Ikan Berdasarkan Pendekatan Ekosistem untuk Pengelolaan Perikanan Tongkol Krai (Auxis thazard) di Perairan Selat Lombok yang Didaratkan di Desa Seraya Timur, Bali I Putu Yoga Pramana Putra; I Wayan Arthana; Made Ayu Pratiwi
Jurnal Pengelolaan Perikanan Tropis (Journal of Tropical Fisheries Management) Vol 4 No 2 (2020): Jurnal Pengelolaan Perikanan Tropis
Publisher : Departement of Aquatic Resources Management, Faculty of Fisheries and Marine Sciences, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jppt.v4i2.32770

Abstract

East Seraya Village is one of the villages as the centers of Frigate Tuna fishery in Karangasem Regency, Bali. Frigate tuna (Auxis thazard) is a main commodity of the fisherman catch. This study aimed to assess the status of fish resources domains based on an ecosystem approach to the management of Frigate Tuna (Auxis thazard) fishery in Lombok Strait Waters landed in East Seraya Village. This research was conducted from November 2019 to January 2020. Data collecting in this research was carried out by field observation, survey, and interviews. Data analysis was performed on each indicator using a multi-criteria analysis with composite index assessment and flag model visualizations. The observed indicators are CPUE trend, fish size trend, the juvenile fish proportion, the catch composition, range collapse of fish resources, and ETP species (Endangered, Threatened, and Protected Species). The assessment of status fish resources domain based on an ecosystem approach to the management of Frigate Tuna (Auxis thazard) fishery in Lombok Strait Waters landed in East Seraya Village was good category with a composite value of 61,67. The fish resources domain indicator showed the CPUE trend has been annually decreased of 7,80%, fish size trend are relatively fixed, the juvenile fish proportion was 100%, the catch composition is dominated bycatch target fish both from gillnet and trolling fishing gear with each percentage of 98% and 90.7%, range collapse of fish resources for fishing is increasingly difficult, and ETP species (Endangered, Threatened, and Protected Species) caught was in a very small amount.
An Ecosystem Approach to Small-Scale Cob Fishery Management through the Assessment of the Fishing Domain in Bali's Kusamba Waters: Pendekatan Ekosistem pada Pengelolaan Perikanan Tongkol Skala Kecil Melalui Penilaian Domain Penangkapan Ikan di Perairan Kusamba Bali I Gusti Agung Bagus Arya Pradnya Pratama; I Wayan Arthana; Made Ayu Pratiwi
Jurnal Pengelolaan Perikanan Tropis (Journal of Tropical Fisheries Management) Vol 4 No 2 (2020): Jurnal Pengelolaan Perikanan Tropis
Publisher : Departement of Aquatic Resources Management, Faculty of Fisheries and Marine Sciences, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jppt.v4i2.32772

Abstract

Pantai Segara Kusamba merupakan salah satu daerah penghasil ikan tongkol terbesar di Provinsi Bali sehingga nelayan menjadikan ikan tongkol (Auxis thazard) sebagai target utama tangkapan mereka. Penelitian ini bertujuan untuk mengetahui penilaian status domain teknik penangkapan ikan pada EAFM demi terwujudnya pengelolaan perikanan yang berkelanjutan. Indikator yang diamati antara lain metode penangkapan ikan yang destruktif dan/atau ilegal, modifikasi alat penangkap ikan dan alat bantu penangkapan, kapasitas penangkapan dan upaya penangkapan, serta selektifitas alat tangkap. Analisis data menggunakan skor likert berbasis ordinal 1, 2, 3. Pengambilan sampel dilakukan pada bulan November – Desember 2019 dengan selang waktu 1 minggu sebanyak 8 kali. Armada penangkapan ikan di Pantai Segara Kusamba menggunakan jukung dengan mesin motor tempel (<5 GT) atau setara 15 PK dengan alat tangkap jaring insang dan pancing ulur. Daerah penangkapan ikan yang dilakukan yaitu di perairan Kusamba hingga mendekati perairan Nusa Penida. Indikator metode peanngkapan ikan yang destruktif dan/atau ilegal memperoleh skor 3. Indikator modifikasi alat penangkapan ikan dan alat bantu penangkapan memperoleh skor 1. Indikator kapasitas perikanan dan upaya penangkapan memperoleh skor 3. Dan indikator selektifitas alat tangkap memperoleh skor 3. Domain teknik penangkapan ikan memperoleh nilai komposit sebesar 80,4 dengan deskripsi baik sekali dan model bendera berwarna hijau tua.
Co-Authors A.A. Gede Cahya Pratama Abd. Rahman As-syakur Agus Wija Atmaja Aida Sartimbul Alfi Hermawati Waskita Sari Alya Namira apri i supi'i Arief Reza Fahlevi Ayu Putu Wiweka Krisna Dewi Bejo Slamet Beny Mustofa Bram Setyadji Bunga Divia Arimbi Cakranegara, Pandu Adi Candra Saputra CoK.I.M. HANDAYANI Daniel Nemba Dambe Daniel Tri Lakona Sinamo Debi Bunga Novitasari Deny Suhermawan Yusup Deptson Baringin Silaen Desak Putu Risky Vidika Apriyanthi Dewa Ayu Angga Pebriani Dewa Gde Tri Bodhi Saputra Dewi, A.A Sagung Laksmi Dwi Suprapti Elok Faiqoh Endang Rustiasih Endang Wulandari Suryaningtyas Fikri Huda Falah Fina Wahyuningsih GALIH INDRAWATI Gde Raka Angga Kartika Gde Raka Angga Kartika Gede Dwi Sukmawantara Gede Pasek Sutedja Gede Surya Indrawan Gemaya Wangsa Gultom, Henry Casandra Gunawan Tarigan Gusti Ayu Manik Pradnyani Habibatus Sholihah Hanifa Miranda I.H. Putri Heidi Siddiqa Heri Prabowo Herlisa Setiarini Hikmah Nurazizah Husnayati Hartini I Dewa Gede Warmadewa I Dewa Nym. Nurweda P., I Gede Agus Isha Purusa I Gede Hendrawan I Gede Wahyu Surya Wirawan I Gusti Agung Bagus Arya Pradnya Pratama I Gusti Agung Dwikhy Oka Taradhipa I Gusti Ayu Diah Hendiari I Gusti Ayu Novie Sidaningrat I Gusti Bagus Suputra I Gusti Made Sudipta I Kadek Tobing Ascahya I Ketut Swardika I Komang Dianto I Made Adi Karsa I MADE ADI PRANATHA I Made Minggu Widyantara I MADE SUDARMA I Made Suma Krisna Sravishta I Made Suwitra, I Made I Nyoman Gede Sugiartha I NYOMAN MERIT I Nyoman Sudipa I Nyoman Sumardika I Nyoman Sutama I Nyoman Sutama I Nyoman Yoga Parawangsa I Putu Eka Mahendra I Putu Yoga Pramana Putra I W BUDIARSA SUYASA I Wayan Gede Astawa Karang I Wayan Juliawan I Wayan Kasa I Wayan Restu I Wayan Sandi Adnyana I Wayan Suarna I Wayan Subawa I Wayan Wesna Astara IDA AYU ASTARINI Ida Ayu Putu Widiawati Ida Ayu Utari Dewi ida bagus adi palguna Ida Bagus Ketut Gede Kertia Ida Bagus Lampita Prabawa Ida Bagus Windia Adnyana Ifan Martin Nopem IPG ARDHANA IRMA YULIA MADJID Joko Wiryatno Josua Siagian Josua Siagian KADEK ARY ANGGRAENI KADEK ARY ANGGRENI Kartika, I Wayan Darya Karyono Karyono Khadijah Irania Kolis Pratama Komang Bayu Permana Komang Gede Pramantara Komang Lina Rosita Sugiarni Krisna Jumantara Panca Putra Letia Alda Fadilla Lisa Rosalia Prayuda Ludia Panggalo Luh Putu Diah Ananda Wijayanti Luh Putu Sudini M Alfian Pratama M. Sudiana Mahendra Made Ayu Pratiwi Made Widya Sekarbuana Mayang Utami Meta Apriliawati Sandi Miftachudin Syaiful Ma'ruf Mohammad Rizqi Mohan Budiman MOKHLAS SATIBI Mu'tasim Billah Muh. Abduh Anwar Muhammad Asir Muhammad Sawir Muhammad Yusuf Ni Desak Putu Dita Herlinawati Ni Kadek Suardiani Ni Komang Rai Widhyaningsih Ni Luh Ayu Gita Astriani Ni Luh Ayu Gita Astriani Ni Luh Gede Ambarawati Ni Luh Gede Rai Ayu Saraswati Ni Luh Made Ari Sugianthi Ni Luh Putu Citra Adriyanti Ni Luh Watiniasih Ni Made Ary Widiastiti Ni Made Ernawati, Ni Made Ni Made Putri Kartika Jati Ni Putu Ayustin Krisnati Dewi Ni Putu Bella Yuliana Dewi Ni Putu Putri Wijayanti Ni Putu Sawitri Nandari Ni Putu Vivin Nopiantari Ni Putu Wiwin Angreni Ni Wayan Desy Wahyudiati Ni Wayan Ernawati NI WAYAN FEBRIANA UTAMI Ni Wayan Indah Purnamawati Nyoman Dati Pertami Octria Vesensia Olivia Grace Brigitta Florencia Pandu Pratama Putra Putra, I Nyoman Giri Putri Eka Cahyani Putri Febrine Nainggolan Putri Nilakandi Perdanawati Pitoyo Putu Agus Arisudana Putu Ayu Irma Wirmayanti Putu Dyah Prastiti Sukma Febriany Putu Suryani . Rachmat Andi Saputra Rani Ekawaty Ranny R. Yuneni Ravita Kusuma Dewi Rifaldus Dani S.A NYOMAN PUTRI TRIANTINI Sang Ayu Indah Sukma Dewi Stephanus Tambunan Suciati - SUCIKA ARMIANI, SUCIKA Suko Ismi Supardiono Supardiono Suprabadevi Ayumayasari Saraswati Suprabadevi Ayumayasari Saraswati Suprabadevi Ayumayasari Saraswati Suprabadevi Ayumayasari Saraswati SUPRATMAN - suryawan, Gusti Bagus Susumu Kanno Syachry Banun Takahiro Osawa Takahiro Osawa Takahiro Osawa Teguh Prayogo Widiastuti Widiastuti Widiati, Ida Ayu Putu Yoga Ibnu Graha Yuli Krisnawati YUNALDI YUNALDI Yuniarti K. Pumpun