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All Journal METAMORFOSA Journal of Biological Sciences Journal of Marine and Aquatic Sciences Buletin Udayana Mengabdi Bumi Lestari Ecotrophic, Journal of Environmental Science JURNAL ENGGANO Jurnal Pengelolaan Perikanan Tropis (Journal Of Tropical Fisheries Management) Current Trends in Aquatic Science Advances in Tropical Biodiversity and Environmental Sciences AT-TAKLIM: Jurnal Pendidikan Multidisiplin
I Wayan Restu
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 Education Energy Environmental Science Immunology & microbiology Veterinary Other

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Journal : Current Trends in Aquatic Science

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Inventarisasi dan Potensi Sosial Ekonomi Ikan yang Didaratkan di PPI Sangsit, Buleleng, Bali Kadek Ira Maresa; I Wayan Restu; Rani Ekawaty
Current Trends in Aquatic Science Vol 2 No 1 (2019)
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Kelautan dan Perikanan, Universitas Udayana

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Abstract

PPI Sangsit is one of the landing bases that is the main supplier of fisheries production, especially in Buleleng Regency. The fish landed at PPI Sangsit comes from the catch of local fishermen and Sepeken Island. Various types of fish landed need an inventory activity with the aim of obtaining valid data to facilitate systematic data collection. Production of fisheries and socio-economic fishermen are also needed to formulate appropriate fisheries management. The study was conducted in February-April 2018. The sample fish was taken by simple random sampling. The results obtained 26 species of fish that were 58% of demersal fishes. Carangsidae, Scrombridae, and Caesionidae families are the family with the most species, which of 12% or 3 species. Production of fresh fish in 2010-2017 tended to decline, while the production of live grouper fish fisheries in 2010-2017 tended to increase. February-April 2018 tended to increase with the highest in March 2018. Comparison of fisheries product in each February, March, and April from 2010 to 2018 tended to decline. The age of all respondents including productive age groups with education classified as low education. Jobs as fisherman, docker, and crew members get the average income included in the middle class, which is Rp 1.500.000 – Rp 2.500.000 per month. Local respondents were include in the category of fisherman owners, small-scale fisherman, and traditional fisherman. Respondent from Sepeken Island belong to the category of labor fisherman, big-scale fihserman, and traditional fisherman
Kajian Stok Ikan Lemuru (Sardinella lemuru) yang Didaratkan di Pelabuhan Perikanan Muncar Kabupaten Banyuwangi Provinsi Jawa Timur I Nyoman Sastra Adi Putra; I Wayan Restu; Rani Ekawaty
Current Trends in Aquatic Science Vol 3 No 1 (2020)
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Kelautan dan Perikanan, Universitas Udayana

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Abstract

Lemuru fish are pelagic fish that live in shallow marine waters, live in groups, and one of species found at the surface water. The largest population of Lemuru fish in Indonesia is found in the Bali Strait. Based on existing data, the Lemuru condition in Bali Strait waters in particular landed at the Fishery Port of Muncar Beach has decreased. Therefore, a research effort should be made to determine the condition of Lemuru at the Muncar Beach Fishery Port. This study was aimed to determine the distribution of length frequencies, growth pattern, and the stock condition of Lemuru. The study was conducted from May to September 2017. The method used in this study was descriptive research method. Samples of Lemuru are taken randomly and directly from the fishermen's catch, production data, and the number of fishing gear and trip was asked directly from Muncar Fishing Port agency. Results showed the total length frequency distribution of Lemuru fish highest in the 135-137mm long hose from the 120-149 mm interval obtained. The relationship between the length and weight of the Lemuru Fish obtained, follows the equation W=4E-05L2.7677 and negative allometric growth pattern (b<3) which means the length growth more dominant compared to the weight growth. The stock condition of Sardinella lemuru with the TAC value obtained with the amount of 30.940 tons per year and the optimum catches effort or fMsy was 26.802 trips per year. Catched results in 2007 has exceeded from TAC value and catches effort in the last ten years found to be outstrip from the optimum catches effort or fMSY.
Komperatif Studi Pertumbuhan Terumbu Karang Jenis Acropora, Montipora dan Stylophora Dengan Teknik Transplantasi Di Perairan Pantai Serangan Denpasar, Bali Pande Adhitya Prabhuwinata; I Wayan Restu; Ni Made Ernawati
Current Trends in Aquatic Science Vol 3 No 1 (2020)
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Kelautan dan Perikanan, Universitas Udayana

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Abstract

Transplantasi karang merupakan salah satu cara merehabilitasi karang. Transplantasi karang merupakan suatu teknik penanaman karang baru dengan metode fragmentasi. Penelitian ini bertujuan untuk mengetahui perbedaan pertumbuhan karang genus Acropora, Montipora dan Stylophora. Penelitian ini dilakuakan selama 3 bulan, yaitu pada bulan April hingga Juni 2018. Pertumbuhan karang diukur setiap 2 minggu sekali dengan menggunakan alat jangka sorong. Pengamatan pertumbuhan pada fragmen karang dilakukan dengan mengukur dimensi pertumbuhan yang terdiri dari pertambahan lebar dan tinggi karang. Hasil penelitian menunjukan bahwa karang genus Montipora memiliki tingkat pertumbuhan paling tinggi sebesar 1,40 cm kemudian Acropora dengan tingkat pertumbuhan sebesar 1,30 cm dan Stylophora sebesar 1,00 cm. Pertumbuhan lebar karang tertinggi adalah genus Montipora sebesar 1,85 cm, Stylophora dengan nilai 1,46 cm dan yang terendah genus Acropora dengan nilai 1,29 cm. Tingkat kelangsungan hidup karang selama penelitian menunjukan karang dapat bertahan hidup selama 4 minggu dan mulai mengalami penurunan pada 2 minggu penelitian berikutnya. Secara keseluruhan karang genus Acropora dan Stylopora memiliki tingkat kelangsungan hidup tertinggi yaitu 90 %, sedangkan karang genus Montipora memiliki tingkat kelangsungan hidup terendah yaitu 83,3%.
Pengaruh Kadar Protein Pakan yang Berbeda terhadap Laju Pertumbuhan Juvenil Ikan Gurami (Osphronemus gouramy) pada Kolam Terpal Gede Bayu Sulastika; I Wayan Restu; Endang Wulandari Suryaningtyas
Current Trends in Aquatic Science Vol 2 No 1 (2019)
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Kelautan dan Perikanan, Universitas Udayana

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Abstract

Penelitian ini bertujuan untuk mengetahui Pertumbuhan berat mutlak, laju pertumbuhan harian/Specific Growth Rate (SGR) juvenil ikan gurami, rasio konversi pakan/Feed Convertion Ratio (FCR) dan efisiensi pakan, serta tingkat kelangsungan hidup/Survival Rate (SR) juvenil ikan gurami yang diberi pakan komersil, pakan tepung ikan, dan campuran pakan tepung ikan dengan tepung kangkung. Metode yang digunakan dalam penelitian ini yaitu metode eksperimen dengan rancangan acak lengkap terdiri dari tiga perlakuan dan tiga kali ulangan, dan pengambilan sampel dengan teknik Simple Random Sampling. Perlakuan yang diterapkan dalam penelitian ini yaitu Perlakuan A adalah pakan komersil, perlakuan B adalah pakan buatan dengan formulasi pakan tepung ikan 50%, tepung jagung 20%, tepung kedelai 10%, dan minyak ikan 20%, terakhir perlakuan C adalah pakan buatan dengan formulasi tepung ikan 5%, tepung jagung 10%, tepung kedelai 5%, tepung kangkung 50%, dan minyak ikan 30%. Berdasarkan hasil penelitian selama 60 hari didapatkan nilai pertumbuhan berat mutlak tertinggi pada perlakuan C sebesar 0.86 gram, nilai laju pertumbuhan harian tertinggi yaitu pada perlakuan C sebesar 3.40%, nilai rasio konversi pakan terbaik pada perlakuan C sebesar 1 : 2.3, nilai efisiensi pakan terbaik pada perlakuan C sebesar 43.57%, dan nilai tingkat kelangsungan hidup tertinggi pada perlakuan C sebesar 79%.
Kajian Kesesuaian Pulau Pasir Putih Dalam Kerangka Pengembangan Ekowisata Bahari Di Pantai Sumberkima, Buleleng, Bali Cintya Kriss Jayanthi; I Wayan Restu; Made Ayu Pratiwi
Current Trends in Aquatic Science Vol 2 No 1 (2019)
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Kelautan dan Perikanan, Universitas Udayana

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Abstract

Penelitian ini bertujuan untuk mengetahui tingkat kesesuaian, daya dukung dan strategi pengembangan di kawasan diperairan Pulau Pasir Putih, untuk kegiatan rekreasi pantai, berenang dan wisata lamun kategori snorkeling. Metode yang digunakan adalah observasi dengan analisa komperatif dan analisis SWOT. Berdasarkan hasil observasi, Pulau Pasir Putih memiliki potensi ekologis yang masih alami seperti pasir yang berwarna putih dan kondisi perairan yang jernih. Hasil yang diperoleh dari perhitungan indeks kesesuaian kawasan wisata untuk kegiatan rekreasi dan berenang adalah 86,8% atau tergolong kategori sangat sesuai (S1) , begitu juga nilai kesesuaian untuk wisata lamun kategori snorkeling tergolong kategori sangat sesuai (S1) dengan nilai 92,5%. Daya Dukung Kawasan Perairan Pantai Pulau Pasir Putih untuk kegiatan wisata rekreasi pantai sebesar 59 orang perhari, wisata berenang 27 orang perhari dan wisata lamun kategori snorkeling 136 orang per harinya. Hal tersebut dapat dibandingkan dengan jumlah pengunjung yang datang ke pulau tersebut berdasarkan pengamatan berkisar 10 orangp erhari. Analisis SWOT diperoleh 4 rencana strategi pengembangan utama pada strategi SO atau (Growth Oriented Strategy), dengan mengandalkan kekuatan untuk meraih peluang sebesar-besarnya. Dapat diartikan bahwa pemanfaatan wisata di Pulau Pasir Putih baru sebesar 4,5%, sehingga berdasarkan hasil perhitungan daya dukung masih dapat dilakukan pengembangan lagi sebesar 95,5%.
Analisis Efisiensi Saluran Pemasaran Ikan Teri (Stolephorus sp.) di Desa Sanggalangit, Kabupaten Buleleng Lingga Nurmalasari; I Wayan Restu; I Ketut Wija Negara; I Wayan Sudana
Current Trends in Aquatic Science Vol 4 No 1 (2021)
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Kelautan dan Perikanan, Universitas Udayana

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Abstract

The location for the research is decide in Sanggalangit Village, Gerokgak District, Buleleng Regency, Bali. The highest production species in the coast of Sanggalangit Village, Buleleng Regency is Anchovy. The village is chosen because there are a lot of fisherman whos active to catch and do the Anchovy’s marketing. The aim of this research is to know the condition of marketing channels and analysis the marketing channels efficiency of Anchovy in Sanggalangit Village. This research is held on December 2019 until January 2020 with qualitative and quantitative methods by observation and interviews. Interviewed with the fisherman, the institution of marketing such as the collecting trader and the retailer. The share margin analysis and farmer’s share as a tool to know the marketing channels efficiency. The marketing channels that occurs in Sanggalangit Village is from the fisherman, to the collecting trader and then to the retailer, until to the customer’s hand. The share margin from this Anchovy’s marketing channels is obtained Rp. 13.000/kg where the margin from the fisherman with the collecting trader is Rp. 3.800 and the margin from the collecting trader with the retailer is obtained Rp. 9.200/kg. The amount of farmer’s share is 56,67 %. The marketing efficiency value is 15,18 %, which is mean the marketing channels efficiency of Anchovy in Sanggalangit Village is efficient.
Komposisi Jenis dan Ukuran Lobster (Panulirus sp.) Hasil Tangkapan di Pantai Yeh Gangga Kabupaten Tabanan dan Pantai Canggu Kabupaten Badung Provinsi Bali Muhammad Rizky Asvin; I Wayan Restu; Rani Ekawaty
Current Trends in Aquatic Science Vol 2 No 1 (2019)
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Kelautan dan Perikanan, Universitas Udayana

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Abstract

Lobster is one of the potential fisheries commodities and an important economic category for export. The research was conducted in December 2018 until January 2019 with objectives to determine the composition and range of sizes of lobster caught by the fishermen and the tools and methods used to catch lobsters on Canggu Beach and Yeh Gangga Beach. The method used for the data collection was survey and interview methods. Sampling was done for 2 months with 1 sampling each month. Samples were taken from the catch of the fishermen. Lobster samples were then identified by type and carapace length measurements, total length, and lobster weight. Data obtained from lobster composition were analyzed descriptively and displayed in graphs and tables, while analysis of lobster fishing methods was carried out descriptively by collecting data on types, quantities, and methods of operation of fishing gear. Results showed the composition of the types of lobsters caught on Canggu Beach were Panulirus penicillatus, P. homarus, P. versicolor, P. longipes, and P. ornatus. The catch in Canggu Beach was dominated by the type of P. homarus as much as 38% in the first data collection and as much as 39% in the second data collection. The composition of lobster catches on Yeh Gangga Beach, namely P. penicillatus, P. homarus, P. versicolor, P. longipes, and P. ornatus. The first data collection was dominated by the type of P. homarus as much as 36% and the second data collection was 46%. The caught lobster has an average carapace length below 8 cm and has a weight above the average, which was 200 grams. The type of fishing gear used to catch lobsters was a passive catch in the form of traps and nets.
Pengaruh Penggunaan Substrat yang Berbeda terhadap Tingkat Keberhasilan Pemijahan Ikan Pelangi Boesemani (Melanotaenia Boesemani) Muhammad Sulthon Subekhi; I Wayan Restu; Bastiar Nurdin
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

boesemani Rainbow fish (Melanotaenia boesemani) is one of the endemic freshwater ornamental fish species originating from Papua which has economic value. Rainbow fish cultivation techniques have now developed but there are not many publications so it is necessary to study the cultivation process, especially the hatchery stage. The research was conducted in August-October 2018 at the Ornamental Fish Cultivation Research Institute (BRBIH), Depok, West Java. This study aims to determine the effect of using different substrates on the rate of fertilization and hatching of Boesemani Rainbow Fish eggs. Data were collected by spawning male and female sires that had matured gonads 15 times with 3 treatments and 3 repetitions. The substrates used as media were treatment A (raffia rope), treatment B (palm fiber), and treatment C (apu-apu water plant). Water quality measurements include temperature, pH, DO. The data analysis technique used is the analysis of variance (ANOVA). Based on the measurement results, the total number of eggs with treatment A was 709 pieces, treatment B was 771 pieces, and Treatment C was 511 pieces. The highest percentage of fertilization rate was found in treatment B (98.4%±0.7). The highest percentage of hatching rate was found in treatment A (90.8%±5.6). The results of the analysis showed that the use of different substrates did not significantly affect the rate of fertilization and hatching of Boesemani Rainbow Fish eggs.
Pendekatan Ekosistem pada Pengelolaan Perikanan Lemuru Skala Besar Melalui Penilaian Domain Teknik Penangkapan Ikan di Perairan Selat Bali Arip Arip; I Wayan Restu; Made Ayu Pratiwi
Current Trends in Aquatic Science Vol 6 No 2 (2023)
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Kelautan dan Perikanan, Universitas Udayana

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Abstract

Fishery activities Sardinella lemuru in the waters of the Bali Strait are the largest source of economy for fishermen in Pengambengan, Jembrana Regency, Bali. The purpose of this study was to determine the condition of the lemuru fishery in the Pengambengan Fishing Port by assessing the domain of fishing techniques in fisheries management using an ecosystem approach (EAFM). The results of the assessment of the indicators of destructive and/or illegal fishing methods get a score of 3, the indicator of modification and fishing aids gets a score of 1, the indicator of fishing capacity and fishing effort gets a score of 3, the selectivity of fishing gets a score of 3, the suitability of functions and the size of the vessel according to legal documents get a score of 1 and fishing boat crew certification following regulations gets a score of 1. Based on the results of the composite score, the value obtained is 73.33 which means that the lemuru fishery in Pengambengan Fishing Port based on the fishing technique domain is good with a colored flag model light green.
Co-Authors Abd. Rahman As-syakur Abdul Razak Adhelia Fatimah Azzahra Alfi Hermawati Waskita Sari Anesa Ronavia Arip Arip Arisanti Dyah Puspitasari Atsna Qi Doma T. Manihuruk Bagus Sudananjaya Bastiar Nurdin Cintya Kriss Jayanthi Desak Made Goldyna Rarasari Desak Putu Permathasari Desak Wira Triana Wandari Dewa Ayu Angga Pebriani Dewangga Ari Kusuma Putra Diah Ayu Safitri Dimas Hafidh Nugroho Dita Dwi Ayu Isukadana Endang Wulandari Suryaningtyas Evrina Cahyani Sinaga Fuad Hasin Ahmad Gagah Gumelar Wicaksono Gde Raka Angga Kartika Gede Bayu Sulastika Hanif Abdullah I Gede Suyoga I Gede Wahyu Surya Wirawan I Gusti Agung Bagus Putra Adiguna I Ketut Wija Negara I Ketut Wija Negara I Ketut Wija Negara I Nyoman Sastra Adi Putra I Putu Anggra Weda I Wayan Arthana I Wayan Gde Samping Gargitha I Wayan Rian Riki Saputra Ida Ayu Novera Wandiani Ilmy Amalia Indah Eka Yulianti Indah Nurtira Irene Yolanda Br Ginting Jordan Alexander Anggiat Simanjuntak Juliyah Emka Kadek Ira Maresa Kartika, I Wayan Darya Ketut Tika Suariningsih Kindy Nurrani Annisa Komang Kerta Sanjaya Lingga Nurmalasari Made Ayu Pratiwi Made Ayu Pratiwi Made Octiya Arimardewi Mahfud Samdani Maria Angelina Vicario Tonga Mawardi Labbaik Mu'tasim Billah Muhammad Alfiansyah Mahmud Muhammad Rizky Asvin Muhammad Sulthon Subekhi Ni Kadek Dwi Widyanti Putri Ni Komang Ayu Sukawati Ni Luh Intan Kartika Sari Ni Made Ernawati, Ni Made Ni Putu Diah Kusumawati Ni Putu Putri Wijayanti Ni Putu Suci Mardani nyoman anisa Pande Adhitya Prabhuwinata Pande Gde Sasmita Julyantoro Pande Kadek Ari Iswari Putu Roni Graha Persada Rani Ekawaty Ribka Evanzelina Laia Sherina Oktafianti Siti Zubaidah Suprabadevi Ayumayasari Saraswati Suprabadevi Ayumayasari Saraswati Suprabadevi Ayumayasari Saraswati Suprabadevi Ayumayasari Saraswati Wayan Putri Prakanti Karya Wenny Aberti Manurung Wisnu Kawirian Yessica Christin Yohana Christanti Ndale Yuli Ananda Yulihatul Meisaroh