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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
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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Analisis Daya Dukung dan Kesesuaian Lingkungan Untuk Pengembangan Pariwisata Berkelanjutan di Pantai Lovina Buleleng, Bali Ni Putu Diah Kusumawati; I Wayan Restu; Ni Putu Putri Wijayanti
Bumi Lestari Journal of Environment Vol 23 No 1 (2023)
Publisher : Environmental Research Center (PPLH) of Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/blje.2023.v23.i01.p05

Abstract

Lovina Beach is one of the tourist attraction located in Kalibukbuk Village, Buleleng District, Buleleng Regency, Bali. Lovina Beach has coastal waters that are still very natural so that it has the potential to be used as an ecotourism area. Information regarding the carrying capacity and environmental suitability for the development of sustainable tourism in Lovina Beach has not been carried out. This study aims to determine the environmental conditions and carrying capacity, and the condition of tourist objects on Lovina Beach for the development of sustainable tourism. Data collection was carried out in January-February the a quantitative and qualitative descriptive method. Observations and measurements were carried out at three stations with different characteristics of the aquatic environment. The condition of the tourist attraction on Lovina Beach is still very natural with a very attractive beauty charm and is supported by other supporting service facilities. The condition of the tourism suitability index for the beach recreation category is included in the category according to the value of 2,4 at stations 1 and 2, and the category is very in accordance with the value of 2,7 at station 3, while the carrying capacity of the area is obtained with a value of 2.291 people/day. The direction of developing tourist areas is to promote through social media and improve infrastructure at Lovina Beach. Keywords: carrying capacity; tourism suitability index; Lovina Beach
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

Show Abstract | Download Original | Original Source | Check in Google Scholar

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.
Indeks Kesesuaian Wisata Dan Strategi Pengembangan Wisata Pantai Di Kawasan Pantai Munggu, Badung, Bali. Ni Luh Intan Kartika Sari; I Wayan Restu; I Ketut Wija Negara
Bumi Lestari Journal of Environment Vol 23 No 2 (2023)
Publisher : Environmental Research Center (PPLH) of Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/blje.2023.v23.i02.p06

Abstract

Research on tourism conformity index (IKW) and beach tourism development strategy was carried out in Munggu Beach, Munggu Village, Mengwi District, Badung. IKW data collection and questionnaire interviews were conducted in January-February 2022 with 3 IKW measurement points. The research aims to find out the value of IKW conditions and development strategies that can be used for management. The methods used are descriptive and quantitative. Primary data is based on observation of beach type parameters, beach width, beach slope, water base material, land closure, availability of clean water, and questionnaire interviews with beach visitors with purposive sampling techniques. Data analysis using IKW measurement results and SWOT analysis. Based on the calculation of IKW at 3 points, namely point I of 1,505, point II of 1,595, and point III of 1,395. The total analysis value of 1? IKW <2.0 belongs to the category of non-conformity. This is due to the weak factors that are owned, so to be developed must be done to improve management. Strategies that can be applied at Munggu Beach are WT (Weakness-Threats) strategy, such as continuing alternative tourism at Munggu Beach, involving the ekternal management of Munggu Beach and adding tourist attractions to Munggu Beach. Keywords: Munggu Beach, IKW, Development Strategi in Munggu Beach
Pengaruh Hutan Mangrove pada Mitigasi Intrusi Air Laut di Surabaya Arisanti Dyah Puspitasari; I Wayan Restu; I Wayan Darya Kartika
Bumi Lestari Journal of Environment Vol 23 No 2 (2023)
Publisher : Environmental Research Center (PPLH) of Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/blje.2023.v23.i02.p08

Abstract

Seawater intrusion is the entry of seawater into the land through the soil pores. Seawater intrusion harms sanitation activities. Surabaya constitutes a city with a high population density, which leads to high demand for water that is not proportional to the water input that cause seawater intrusion. Mitigation efforts to minimize the occurrence of seawater intrusion were by planting mangrove forests which act as coastal protection systems. The purpose of this study was to determine the water quality of the wells in Kenjeran and Rungkut, as well as to determine whether the presence of mangroves could affect the water intrusion mitigation. Samples were taken from 2 stations in Kenjeran and Rungkut with 3 sampling points and 3 repetitions. The parameters measured were consist of salinity, electrical conductivity, chloride, and total hardness. The samples of laboratory results were analyzed comparatively with the Kruskal Wallis test. It showed that the water in the coastal areas of Kenjeran and Rungkut was categorized as saline water with an average salinity value ranging from 3.1–7.2 ppt. Electrical conductivity values ??ranged from 6916-7993 mmhos/cm. Chloride values ??ranged from 1825-3848 mg/l. Total hardness values ??ranged from 320-1025 mg/l. Based on the values ??above, the quality of well water in both locations is classified as having experienced seawater intrusion. The existence of a mangrove forest landscape has no significant effect on mitigating seawater intrusion, this is presumably because the low percentage of mangrove cover (3.2%) cannot degrade seawater intrusion in Rungkut. Keywords: Groundwater; Mangrove Forest; Mitigation; Sea water intrusion; Surabaya.
Strategi Pengembangan Wisata Snorkeling di Pantai Tanjung Benoa, Bali Adhelia Fatimah Azzahra; I Wayan Restu; I Ketut Wija Negara
Journal of Marine and Aquatic Sciences Vol 9 No 2 (2023)
Publisher : Fakultas Kelautan dan Perikanan Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/jmas.2023.v09.i02.p06

Abstract

The island of Bali as one of the icons of Indonesian tourism is famous for its natural potential, community hospitality, cultural values and the value of the natural beauty of the sea which is packaged in marine tourism attractions. Marine tourism is a tourism activity in the form of enjoying the beauty, uniqueness, comfort and other values of marine nature and other values and water sports including the provision of facilities and infrastructure as well as other services that are managed commercially. Tanjung Benoa is a marine tourism destination that is favored as a Tourist Attraction (ODTW) in Badung Regency with water sports, snorkeling and diving attractions. This study aimed to determine the current condition of snorkeling tourism and determined the strategy for developing snorkeling tourism at Tanjung Benoa Beach. The study was conducted from January 2021 to February 2021, using quantitative descriptive methods and data analysis using SWOT analysis. The results showed that the condition of tourist visits for integrated snorkeling activities in marine tourism attractions experienced a drastic decline as a result of the 2020-2021 COVID-19 pandemic conditions. The potential for marine tourism, especially snorkeling activities in Tanjung Benoa, is coral reefs, reef fish and other marine biotas. Based on the results of the SWOT analysis, Tanjung Benoa Beach was in quadrant II. The strategy for developing snorkeling tourism on the Tanjung Benoa beach was in quadrant II or the ST (Strength and Threat) strategy. The ST strategy included maintaining the condition of coral reefs and marine life and studying the reclamation of Benoa Bay. The next strategy was to increase village rules related to health protocols and e-commerce-based marine tourism marketing.
Komposisi Dan Struktur Komunitas Ikan Pada Ekosistem Mangrove Di Perairan Teluk Benoa, Bali I Putu Anggra Weda; I Wayan Restu; Ni Made Ernawati
AT-TAKLIM: Jurnal Pendidikan Multidisiplin Vol. 2 No. 3 (2025): At-Taklim: Jurnal Pendidikan Multidisiplin (Edisi Maret)
Publisher : PT. Hasba Edukasi Mandiri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.71282/at-taklim.v2i3.183

Abstract

The mangrove ecosystem of Benoa Bay is an estuarine area that plays a significant role in providing food sources for various types of biota, both aquatic and terrestrial. In addition, mangrove ecosystems are also greatly influenced by human activities such as development in mangrove areas and environmental pollution, which indirectly affect the presence of biota in those mangrove ecosystems. The purpose of this research is to understand the fish community structure and water conditions in the mangrove ecosystem of Benoa Bay. This research was conducted in October – November 2023 at 4 stations with 2 repetitions at each station. Fish sampling using gill nets with a mesh size of 2 inches.  The fish catch results in the Teluk Benoa mangrove ecosystem consist of 8 families and 10 species. Station II has the highest fish abundance among the other stations, with 8 species, while the lowest fish abundance is found at Station III, with 5 species. The fish species most commonly found in Benoa Bay is Leiognathus equulus or Cotek Fish, with a total of 188 individuals. Meanwhile, the fish species with the least number are Tripoddichthys blochii and Lobotes surinamensis, with only 1 individual each.
Kondisi Sosial Ekonomi dan Nilai Tukar Nelayan (NTN) Bouke Ami di Pelabuhan Perikanan Nusantara (PPN) Muara Angke, Jakarta Utara Raihan Sulaiman Payapo; I Wayan Restu; Suprabadevi Ayumayasari Saraswati; I Ketut Wija Negara
Jurnal Manajemen Bisnis Era Digital Vol. 2 No. 4 (2025): November : Jurnal Manajemen Bisnis Era Digital
Publisher : Asosiasi Riset Ilmu Manajemen Kewirausahaan dan Bisnis Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61132/jumabedi.v2i4.1021

Abstract

Fishermen are an essential group in supporting national food security; however, their lives are still characterized by various social and economic challenges, such as unstable income, low education levels, and high household expenditure burdens. This research aims to provide an overview of the socio-economic conditions and welfare of Bouke Ami fishermen in the Nusantara Fisheries Port (PPN) Muara Angke, North Jakarta, through the Fishermen’s Exchange Rate (NTN) and Fishermen’s Exchange Rate Index (iNTN). The study was conducted in May–June 2025 using a descriptive method with quantitative and qualitative approaches. Data collection techniques included observation, interviews, and questionnaires distributed to 100 Bouke Ami crew members (ABK). The results showed that the majority of crew members were aged 30–39 years, had completed only junior high school education, received health services through community health centers (puskesmas), had three family dependents, and most lived in their own homes. The average total monthly income of Rp5.733.500 is considered high as it exceeds the 2025 DKI Jakarta minimum wage (UMP) of Rp5.367.381. Meanwhile, the average total expenditure of Rp5.396.761 remains below income, indicating manageable household finances. The NTN value was 1,06 in April and 1,07 in May, resulting in an iNTN of 101%, indicating that Bouke Ami fishermen in PPN Muara Angke, North Jakarta, are at a level of economic welfare classified as prosperous with slight improvement. This increase reflects a modest rise in fishermen’s purchasing power between the two months and can serve as basis for formulating policies aimed at empowering coastal fishermen.
Reproductive Aspects of Red Devil Fish (Amphilophus citrinellus) in Lake Batur Area, Bali Nico Mulia Subekti; I Wayan Darya Kartika; I Wayan Restu
Advances in Tropical Biodiversity and Environmental Sciences Vol. 9 No. 2 (2025): June 2025
Publisher : Institute for Research and Community Services Udayana University (LP2M Universitas Udayana)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/ATBES.2025.v09.i02.p10

Abstract

The red devil fish (Amphilophus citrinellus) has a rapid breeding nature; its presence is a problem and detrimental to fish farmers. This study aims to examine the reproductive aspects of the fish, which can be seen from several elements: sex ratio, gonad maturity level, gonad maturity index, and fecundity. The research method used is descriptive quantitative. Samples of red devil fish (Amphilophus citrinellus) were collected using purposive sampling at three sampling station locations. We conducted the sampling three times, every two weeks. Each sample collection consisted of 15 fish per station. The equipment used was a gill net with a mesh size of 2.5 inches, a net length of 100 m, and a net height of 1 m. We then place the caught fish into a coolbox and observe them. The research results indicate an imbalance in the sex ratio of the red devil fish population in Lake Batur. The male red devil fish population is larger than the female population. Based on the gonad maturity level (TKG), male red devil fish are most commonly found at TKG III and II, each having 20 individuals, while females are dominated by TKG IV, which has 35 individuals. The average gonad maturity index (IKG) for male fish is 0.25–0.65, while for females, it is 1.58–2.32. The average fecundity of females ranges from 582 to 790 eggs.
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