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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 Current Trends in Aquatic Science Jurnal Manajemen Bisnis Era Digital AT-TAKLIM: Jurnal Pendidikan Multidisiplin Advances in Tropical Biodiversity and Environmental Sciences

I Wayan Restu

Program Studi Manajemen Sumberdaya Perairan (Department Of Aquatic Resources Management) Universitas Udayana

Author-ID : 2950437

Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Earth & Planetary Sciences Economics, Econometrics & Finance Education Energy Environmental Science Immunology & microbiology Medicine & Pharmacology Veterinary Other

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PENILAIAN STATUS DOMAIN SUMBER DAYA IKAN LEMURU DENGAN PENDEKATAN EKOSISTEM YANG DIDARATKAN DI PPI KEDONGANAN, BALI Ketut Tika Suariningsih; I Wayan Restu; Made Ayu Pratiwi
ECOTROPHIC : Jurnal Ilmu Lingkungan (Journal of Environmental Science) Vol 15 No 2 (2021)
Publisher : Master Program of Environmental Science, Postgraduate Program of Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/EJES.2021.v15.i02.p08

PPI Kedonganan is a fish landing base located in Kedonganan Village, Kuta District, Badung Regency. One of the fish commodities that landed at PPI Kedonganan is Lemuru Fish (Sardinella lemuru). The high rate of catching Lemuru must be balanced with proper management so that Lemuru Fish Resources remain sustainable. This study was conducted to determine the status of the utilization of Lemuru fish resources. The study was conducted from January 2021 to March 2021. Data collection was carried out by observation and interviews. Data analysis of each indicator was carried out using a multi-criteria analysis approach with composite index assessment and visualization by flag model. Indicators were observed the trends of fish size, the proportion of juvenile fish were caught, the species composition, range collapse of fish resources, Endangered, Threatened, and Protected species. The status assessment of the Lemuru resource domain which landed at PPI Kedonganan is in the good category with a composite value of 66.7. Results of the trend indicators of fish size is relatively fixed, the proportion of fish juvenile caught about 90%, the composition of species caught was 100% of the target fish i.e, lemuru that caught by using gill net, range collapse of fish resources as much as 57% of fishermen expressed relatively fixed in looking for fishing grounds, and ETP species not found. Keywords: EAFM; Lemuru Fish; Fisheries Management; PPI Kedonganan.

KONDISI PARAMETER FISIKA DAN KIMIA PERAIRAN TELUK BENOA, BALI Ni Made Ernawati; I Wayan Restu
JURNAL ENGGANO Vol. 6 No. 1 (2021)
Publisher : Universitas Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31186/jenggano.6.1.25-36

Teluk Benoa merupakan tempat bermuaranya beberapa sungai dan terdapat berbagai kegiatan seperti kegiatan industri, perdagangan, dan pariwisata yang berpotensi menyebabkan terjadinya pencemaran di kawasan tersebut. Penelitian ini bertujuan untuk mengetahui kondisi parameter fisika dan kimia perairan Teluk Benoa. Metode yang digunakan adalah metode deskriptif kuantitatif. Pengambilan sampel dilakukan sebanyak 2 kali pada 5 titik. Hasil penelitian menunjukkan bahwa terdapat beberapa parameter yang melebihi baku mutu yaitu kekeruhan, TSS, fospat, dan nitrat.

Kajian Kualitas Air, Potensi Karang Dan Ikan Karang Untuk Pengembangan Wisata Selam Di Desa Bondalem, Buleleng, Bali Evrina Cahyani Sinaga; 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 Bondalem Village is located in Tejakula District, Buleleng Regency, north of the Island of the Gods. This village is directly adjacent to the Bali Sea in the north, this condition makes tourism can develop especially diving tourism and activity. This purpose of this study is to examine the suitability of water quality in order to support the development plan of diving tourism in the waters of Bondalem Village, Tejakula District, Buleleng Regency. Data colection is carried out every once a month within 3 months in November, December 2018 and March 2019. This study uses the method of field observation and secondary data from the results of the literature study. In this study the method of data collection was done by direct measurement in the field for observations of the environmental conditions at the study site. The results of data collection in the form of data that supports the acquisition of environmental parameter data in regional and physical environmental suitability assessment. This study was carried out by analyzing the suitability of diving tourism, coral identification was assessed using the LIT (Line Intercept Transect) method while the abundance of reef fish species was studied using the UVC (Underwater Visual Census) method. Analysis of the data used is an analysis of the potential of coral reefs and land suitability. Determination of the level of land suitability as a diving tourism area using regional suitability matrix analysis considering ecological parameters and water quality. The live coral community cover in Bondalem waters ranges from 65.93% to 81.33% with a variety of reef fish species ranging from 16 families. Travel suitability index diving category is included in the very appropriate category (S1).

Kajian Kelimpahan Mikroplastik di Perairan Teluk Benoa Provinsi Bali Dimas Hafidh Nugroho; I Wayan Restu; Ni Made Ernawati
Current Trends in Aquatic Science Vol 1 No 1 (2018)
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Kelautan dan Perikanan, Universitas Udayana

Benoa Bay is one of the water areas with a fairly complex activity, ranging from benoa port activities, watersports tours, as well as activities from residential areas. The activity is thought to contribute to the pollution of marine debris on the bay of Benoa. The purpose of this study is to determine the type and abundance of microplastic contained in the waters of Benoa Bay, Bali. This study was conducted from March to May 2018. Microplastic sampling in water using 200 µm plankton net which was withdrawn for 10 minutes. Method microplastic sampling in sediments using a shovel. The results showed that there are 3 types of microplastic found in water and sediment of Benoa Bay waters are fragment, film, and fiber. The highest microplastic type in the waters comes from the type of fragment with an abundance of 0.26 particles / m³ found at station 3. The highest total microplastic abundance in the waters is present at station 3 with an abundance of 0.58 particles / m³. The highest microplastic type in the sediment comes from the type of fragment with an abundance of 57 particles / kg found at station 1. The highest total microplastic in the sediment abundance is present at station 1 with an abundance of 114 particles / kg.

Struktur Komunitas Ikan Di Muara Sungai Badung Kawasan Mangrove Taman Hutan Raya (Tahura) Ngurah Rai, Bali I Gusti Agung Bagus Putra Adiguna; I Wayan Restu; Rani Ekawaty
Current Trends in Aquatic Science Vol 1 No 1 (2018)
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Kelautan dan Perikanan, Universitas Udayana

Muara Sungai Badung merupakan habitat dari berbagai macam kehidupan akuatik terutama ikan, dimana kondisi kualitas air sangat berpengaruh terhadap pola persebaran, keanekaragaman, kelimpahan serta kerapatannya. Ekosistem perairan muara Sungai Badung di kawasan mangrove Taman Hutan Raya (TAHURA) Ngurah Rai, Bali banyak mendapatkan tekananan ekologis dari berbagai aktivitas manusia seperti limbah – limbah yang diduga berdampak penting pada komunitas ikan (sumberdaya perikanan). Tujuan dilakukannya penelitian ini untuk mengetahui struktur komunitas dan kondisi lingkungan perairan di muara Sungai Badung. Penelitian dilakukan pada bulan Februari – Maret 2018 dengan 3 kali pengulangan pada 6 stasiun. Pengambilan sampel ikan menggunakan alat tangkap berupa jaring (gill net) dengan mesh size 1 inchi dan jala lempar. Diperoleh ikan di muara Sungai Badung yang terdiri dari 7 ordo, 14 famili, dan 14 spesies. Stasiun III mempunyai kelimpahan ikan tertinggi diantara stasiun lainnya yaitu 0,142 ind/m2 dengan komposisi ikan terbanyak diantara stasiun lainnya yaitu sebanyak 8 spesies, kelimpahan ikan terendah terdapat pada stasiun II yaitu 0,055 ind/m2 dengan komposisi ikan sebanyak 4 spesies. Komposisi ikan keseluruhan tertinggi yang didapatkan di muara Sungai Badung yaitu Mystus gulio sebanyak 18,56% dengan kelimpahan tertinggi sebesar 0,082 ind/m2, sedangkan ikan dengan komposisi keseluruhan yang rendah yaitu Pomadasys argenteus 1,14% dengan kelimpahan terendah sebesar 0,005 ind/m2 pada stasiun VI. Indeks keanekaragaman tertinggi terdapat pada stasiun III yaitu 1,96 dan yang terendah terdapat pada stasiun I sebesar 0,93. Indeks keseragaman tertinggi terdapat pada stasiun III sebesar 0,74 dan yang terendah terdapat di stasiun I sebesar 0,35. Indeks dominansi tertinggi terdapat pada stasiun I sebesar 0,40 dan yang terendah terdapat di stasiun III dengan nilai 0,16. Kata Kunci: Ikan; Muara; Struktur Komunitas; Sungai Badung; Mangrove

Laju Pertumbuhan Ikan Nila (Oreochromis niloticus) pada Tiga Sistem Resirkulasi yang Berbeda Yessica Christin; I Wayan Restu; Gde Raka Angga Kartika
Current Trends in Aquatic Science Vol 4 No 2 (2021)
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Kelautan dan Perikanan, Universitas Udayana

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Recirculation aquaculture system can be used to maintain the water quality during fish maintenance. This research aimed to determine the growth rate and survival rate of Tilapia (Oreochromis niloticus) by used three different recirculation system. The treatments are recirculation without filter (control), a biofilter system (bioball) and aquaponic systems (using water spinach and caisim). During eight weeks, the resulted of research showed the highest growth rate of Tilapia (Oreochromis niloticus) in biofilter treatment amounted for 4.58%/day followed by the control treatment for 4.09%/day and the lowest in aquaponic treatment for 3,81%/day. The best survival rate of Tilapia (Oreochromis niloticus) during the research contained in aquaponic treatment followed by biofilter treatment and the lowest value was in control treatment. During the research, of aquaponic treatment gave survival rate for 78.7%, biofilters 74.8% and control treatment for 63.5%. There were no significant differences (P > 0,05), between parameters for growth while survivl rate was significant (P < 0.05). The parameters of water quality include temperature, potential hidrogen (pH), dissolved oxygen (DO) and total dissolved solids (TDS). The quality range of water in all treatments generally described that the range were still running in tolerance for growth and survival rate of Tilapia.

Prevalensi dan Intensitas Ektoparasit Ikan Bawal Air Tawar (Colossoma macropomum) pada Usaha Perikanan Rakyat (UPR) di Desa Sepanjang, Kecamatan Glenmore, Banyuwangi Indah Eka Yulianti; I Wayan Restu; Alfi Hermawati Waskita Sari
Current Trends in Aquatic Science Vol 2 No 1 (2019)
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Kelautan dan Perikanan, Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (473.838 KB)

Freshwater Bawal fish (Colossoma macropomum) is one of the important fish species in freshwater cultivation activities. One of the qualities of good fish must be avoided from disease. Ectoparasites are parasites that attack the outside of the fish's body. This study aimed to determine the type, prevalence and intensity of freshwater Bawal fish ectoparasites (Colossoma macropomum) at UPR in Sepanjang village, Glenmore, Banyuwangi. Sampling of freshwater Bawal fish was taken using a purposive sampling method. The sample used was small fish (7.3-9 cm with a weight of 9.62 grams) and large fish (22.5-30.3 cm with a weight of 305.03 grams). 30 fish each. The data obtained were analyzed descriptively. The type of ectoparasites that infect small-sized freshwater Bawal fish include Trichodina sp. with a prevalence of 60% and intensity of 25 ind/fish, Ichthyophthirius multifiliis with a prevalence of 70% and intensity of 96 ind/fish, Dactylogyrus sp. with a prevalence of 100% and intensity of 23 ind/fish, and Gyrodactylus sp. with a prevalence of 23% and intensity of 2 ind/fish, whereas in large freshwater Bawal fish found ectoparasites such as Trichodina sp. with a prevalence of 10% and intensity of 2 ind/fish, Ichthyophthirius multifiliis with a prevalence of 90% and intensity of 66 ind/fish, Dactylogyrus sp. with a prevalence of 100% and intensity of 345 ind/fish, Gyrodactylus sp. with a prevalence of 23% and intensity of 11 ind/fish and the prevalence of Copepod 13% with an intensity of 1 ind/fish.

Indeks Kesesuaian Wisata Bahari Kategori Rekreasi Pantai di Pantai Balangan, Kabupaten Badung, Bali Sherina Oktafianti; I Wayan Darya Kartika; I Wayan Restu
Current Trends in Aquatic Science Vol 4 No 2 (2021)
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Kelautan dan Perikanan, Universitas Udayana

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This research was conducted to determine the suitability of marine tourism conditions for the beach recreation category to preserve sustainable marine tourism. The IKW data collection used the purposive sampling method. This research was divided into 3 observation stations with a sampling distance of 10 m from the shoreline to the sea. Determination of the marine tourism suitability index of beach recreation used the suitability matrix analysis by considering 10 parameters such as water depth, water brightness, beach type, beach width, beach slope, current velocity, water bottom material, coastal land cover, hazardous biota, freshwater availability. Water brightness, current velocity, beach widh, water depth and hazardous biota parameters data collection is carried out with 3 repetitions, whereas the other parameters are carried out without repetition. The parameter conditions for the IKW for beach recreation at Balangan beach had a white sand type of beach, beach width 28 m, the water bottom material is sand, water depth 0,66 m, water brightness 73%, current velocity 29 cm/s, beach slope 7,9°, coastal land cover is an open field, without hazardous biota, and freshwater availability 0,075 km. The results were obtained from the calculation of the IKW for beach recreation tourism at station I with a value of 2,92, station II 2,80, and station III 2,92. The result showed that all 3 stations were categorized as a very suitable category which indicates that Balangan Beach is very suitable as a beach recreation tourism object and can be further developed in its management.

Analisa Usaha Penangkapan Ikan dengan Longline pada KM. Hiroyoshi 6 Milik PT. Intimas Surya di Benoa, Bali Diah Ayu Safitri; I Wayan Restu; I Ketut Wija Negara
Current Trends in Aquatic Science Vol 2 No 2 (2019)
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Kelautan dan Perikanan, Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (554.089 KB)

This study objectives is to analyze longline fisheries business, by analyzing business feasibility aspects and operational costs and business income. The method used is descriptive quantitative, and determining respondent by purposive sampling. The data collection process is carried out for 3 months. MS. Hiroyoshi 6 which is based in Benoa Harbor which is a wooden ship measuring 120 GT, with longline fishing gear. In one year the ship can make 6 trips. The composition of the catch consists of 9 types of fish, which are dominated by tuna. The investment costs incurred are Rp. 2,750,000,000, and operating costs are Rp. 805,410,000 in one year. The average boat production yield is 73,407 kg, with revenues of Rp 4,157,275,000 and profits of Rp 1,559,465,000. The results of the business feasibility analysis, payback period 1.7, B / C ratio 1.6, and Break Even Point units of 25,000 kg and Break Even Point sales of Rp 1,415,852,000. Based on the results of the analysis, the longline fisheries business is feasible to continue.

Aspek Reproduksi Ikan Lemuru (Sardinella lemuru) yang Didaratkan di Pelabuhan Perikanan Nusantara (PPN) Pengambengan, Bali Ribka Evanzelina Laia; I Wayan Restu; Made Ayu Pratiwi
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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Sardinella (Sardinella lemuru) is a type of small pelagic fish which very important and economic value in Pengambengan Nusantara Fishing Port (NFP). Sardinella resources are stated to be in overfishing were marked by the catch that is getting smaller and the production has decreased every year. The situation of Sardinella resources in Bali Strait, especially in Pengambengan NFP must be maintained by managing, then stocks of Sardinella can be utilized sustainably. This research aims to provide an overview of conditions and threats to Sardinella around Pengambengan NFP as one of the largest fishing ports in Bali Strait includes Sardinella fisheries production in Pengambengan NFP, sex ratio, gonad maturity level, gonad maturity index, conditions factor, so Sardinella resources can be created sustainable. This research uses a simple random sampling method, by taking fish randomly from traders who contain various lengths and weights of Lemuru in Pengambengan NFP. Lemuru production from 2009-2018 in PPN Pengambengan has increased and decreased, this is due to several factors such as environmental changes and fishing activities by fishermen. The sex ratio of Sardinella landed in Pengambengan NFP has a ratio of 0.8: 1. Gonad Maturity Level obtained in TKG I and TKG II so the Gonad Maturity Index found was around 0.0291-0.2188. The range of condition factors from 0.9-1.4, it means Sardinella in the plump category.Sardinella lemuru; PPN Pengambengan; Reproduction

Co-Authors Abd. Rahman As-syakur 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 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 Nico Mulia Subekti nyoman anisa Pande Adhitya Prabhuwinata Pande Gde Sasmita Julyantoro Pande Kadek Ari Iswari Putu Roni Graha Persada Raihan Sulaiman Payapo 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 Yessica Christin Yohana Christanti Ndale Yuli Ananda Yulihatul Meisaroh

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