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All Journal Jurnal Pengolahan Hasil Perikanan Indonesia Journal of Marine and Aquatic Sciences Bumi Lestari SIMBIOSIS Current Trends in Aquatic Science Advances in Tropical Biodiversity and Environmental Sciences PAPALELE : Jurnal Penelitian Sosial Ekonomi Perikanan dan Kelautan Jurnal Ilmiah Hospitality Management
Kartika, I Wayan Darya
Program Studi Manajemen Sumberdaya Perairan, Fakultas Kelautan Dan Perikanan, Universitas Udayana
Agriculture, Biological Sciences & Forestry Humanities Earth & Planetary Sciences Economics, Econometrics & Finance Energy Environmental Science Social Sciences Veterinary Other

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Strategi Pengelolaan Ekowisata Mangrove Berbasis Konservasi pada Objek Wisata Alam Trekking di Tahura Ngurah Rai, Bali Atsna Qi Doma T. Manihuruk; I Wayan Restu; I Wayan Darya 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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The aim of this research was to explain the legal aspects of trekking nature tourism object, to determined the zones of this place existence and to explain the strategies management of mangrove ecotourism in trekking nature tourism object. The methods of this research were using survey, purposive sampling and accidental sampling. The data were analized using a content analysis and SWOT analysis. The results indicates that the development of that place has already been legal as the tourist attraction. This statement is according to the decree of the Minister of Forest Number 544/Kpts-II/1993 on September 25, 1993. The development of this place is also on the right zone, the place is located in the utilization zone. And, this research resulted 6 strategies namely; improved the infrastructure and providing dustbins, toilet revitalitation and reconstruction the bridges, conduct waste management with an integrated system which is based on community management that involved people around the place, increasing the diversification of tourist attraction objects, increasing the promotion by joining the tourism developers. The last but not least, is about issuance of PERDA (Peraturan Daerah) to control and made an ideal price for tickets, and improved the human resource management.
Tingkat Reduksi Kromium Heksavalen (Cr6+) pada Air dengan Menggunakan Kombinasi Kultur Chlorella sp. dan Spirulina sp. Anisa Oka Dina; I Wayan Darya Kartika; Ima Yudha Perwira
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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Penelitian ini bertujuan untuk mengetahui kemampuan dari Chlorella sp. dan Spirulina sp. pada kultur kombinasi dalam mereduksi logam berat kromium heksavalen (Cr6+) dalam air. Penelitian ini dilakukan di Balai Besar Perikanan Budidaya Air Payau (BBPBAP) Jepara dari bulan Desember 2018 sampai Februari 2019. Penelitian ini menggunakan Rancangan Acak Lengkap (RAL), yang terdiri dari tiga perlakuan dan tiga kali pengulangan yaitu perlakuan A (Chlorella sp.), perlakuan B (Spirulina sp.), dan perlakuan C (kombinasi).Berdasarkan hasil penelitian diketahui bahwa kultur kombinasi Chlorella sp.dan Spirulina sp. menunjukkan tingkat reduksi logam berat kromium heksavalen yang paling tinggi (20%) dibandingkan dengan kultur dari masing-masing secara individu (dari 6,0 ppm menjadi 4,8 ppm). Tidak ada pengaruh dari logam berat kromium heksavalen pada kepadatan fitoplankton selama proses kultur. Kualitas air yang diukur selama penelitian yaitu salinitas dengan nilai 15 ppt, nilai DO berkisar 6,9-7,3 mg/L, nilai suhu 21-22,5?C, dan nilai pH berkisar 7,4-7,9.
Kandungan Nitrat dan Fosfat pada Air di Sungai Telagawaja Kabupaten Karangasem, Bali Deta Miriam Br Sitepu; Ima Yudha Perwira; I Wayan Darya 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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This study measured the amount of nitrates and phosphates in thewater of Telagawaja river. The water of this river is used for hygiene sanitation necessity of the people living in the surrounding area. Many antropogenic activities are exists in this area, such as: rafting and hotel, farming, and animal husbandry. This study aimed to know the status of nitrate and phosphate nutrient in the water based on the Indonesia Government Regulation Number 82 of 2001. The amount of nitrate was measured using Salifert Nitrate KIT, while phosphate was measured using Hanna HI 713 KIT. Measurement was also carried out on the total organic matter, dissolved solid, suspended solid, turbidity, dissolved oxygen, water acidity (pH), and temperature. The results showed that amount of nitrate (0.2-0.9 mg/L) and phosphate (0.1-0.4 mg/L) in the water of Telagawaja River was below the tolerance limit for all of usage class. The water of the center and the downstream might be used for fish culture, animal husbandry, irrigation water, and other usages in this standard.
Rasio Konversi Pakan, Pertumbuhan dan Kelulushidupan Ikan Lele (Clarias Sp.) yang Diberi Pelet Komersial dan Maggot BSF Black Soldier Fly (Hermetia Illucens) I Kadek Alamsta Suarjuniarta; Pande Gde Sasmita Julyantoro; I Wayan Darya 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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The purpose of this study was to determine the feed conversion ratio, weight growth and survival rate of Catfish (Clarias sp.) fed with commercial feed and the black soldier fly larvae (Hermetia illucens). The study was conducted from February-March 2021 located at PT Bala Biotech Indonesia, Karangasem, Bali. This study used an experimental method with a completely randomized design consisting of 3 treatments and 3 repetitions. The treatment A used 100% commercial feed, treatment B used 50% commercial feed + 50% BSF larvae and the treatment C used 100% BSF larvae. The result showed that the fish survival was 33±2.89%, weight growth 35.0±1.89g and FCR 0.67 in the treatment A, while treatment B resulted in 35±5.00% of survival, weight growth 33.6±0.85g and FCR 0.82, treatment C had 47±2.89% survival 18.7±1.89 g weight growth and FCR 1.12. The water quality parameters measured such as DO was ranged at 6.6-7.4 mg/l, temperature 25.8-25.9 oC, pH 6.9-7.0, ammonia level 0.7-1.4 mg/l, nitrite level 0.1-0.6 mg/l and nitrate level 3.0-5.3 mg/l. This study concluded that fish fed with 100% maggot BSF resulted in highest fish survival but the fish growth was lower compared to other treatments. Finally FCR in all treatments were not significantly different (P>0.05).
Primary Productivity Levels and About Phythoplankton In Tamblingan Lake Jordan Alexander Anggiat Simanjuntak; I Wayan Restu; I Wayan Darya Kartika
Advances in Tropical Biodiversity and Environmental Sciences Vol 6 No 2 (2022): ATBES
Publisher : Institute for Research and Community Services Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/ATBES.2022.v06.i02.p02

Abstract

The role of lake waters in supporting people's lives in a broad sense is largely determined by the level of lake productivity, one of which is primary productivity. The primary productivity of the lake can be seen from the abundance and diversity of phytoplankton which are the basic components in the food chain system in waters. The purpose of this study was to determine the level of primary productivity and abundance of phytoplankton. The bottle-dark-bottle-light method was used to determine the photosynthetic rate and respiration of phytoplankton. Gross photosynthesis (GP = dirty photosynthesis) is obtained by subtracting the dissolved oxygen content in the dark bottle from the dissolved oxygen content in the light bottle, after being subjected to lighting (incubation) for several hours. Result the highest abundance is at station II. The uniformity index shows that for station 3 it is the lowest category. The results of the calculation of the phytoplankton dominance index have a value that is inversely proportional to diversity. Based on the category, the index value for the three stations is categorized as low dominance. Water quality parameters measured include dissolved oxygen (DO), degree of acidity (pH), temperature, brightness, and turbidity. Based on all measurements and several aspects of conditions that occur in the waters of Lake Tamblingan, it is still classified as normal and good enough for the continuation of aquatic life. The determinant of the primary productivity among them was pH, temperature, turbidity, and brightness.
Length-Weight Relationship and Condition Factors of Mullet Fish (Mugil cephalus) Caught at the Waters of Ngurah Rai Grand Forest Park, Bali Dewangga Ari Kusuma Putra; I Wayan Restu; I wayan Darya Kartika
Advances in Tropical Biodiversity and Environmental Sciences Vol 5 No 1 (2021): ATBES
Publisher : Institute for Research and Community Services Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (888.403 KB) | DOI: 10.24843/ATBES.2021.v05.i01.p02

Abstract

Grey Mullet fish (Mugil cephalus) is one of the economically valuable fish in the waters of the Ngurah Rai Forest Park, Bali. This study was conducted to examine the relationship between the length and weight of the condition of Belanak fish caught in the waters of the Ngurah Rai Forest Park, Bali. The purpose of this study was to determine the description of the growth conditions of Belanak in the waters of Ngurah Rai Tahura, Bali will create a plan for sustainable management of Belanak Fish resources. Sampling was conducted in March 2019 to May 2019. Data analysis used was the relationship between length and weight and condition factors. Data processing is done by using the Microsoft Excel program. The results obtained showed that the mullet fish has a negative allometric growth pattern (long growth is faster than weight growth) equation W = 0.011 L2.195 and the coefficient of determination (R2) of 0.75 (75% growth in weight is influenced by growth long). Belanak fish caught in Ngurah Rai Tahura waters have a condition factor value (K value) ranging from 0.941 to 1.514 which indicates that Belanak is in good condition and is in its infancy.
Antibiotics Resistance Level of Vibrio spp. Isolated From Northern Bali Area Widya Purnama Dewi; Pande Gde Sasmita Julyantoro; I Wayan Darya Kartika
Advances in Tropical Biodiversity and Environmental Sciences Vol 4 No 2 (2020): ATBES
Publisher : Institute for Research and Community Services Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (980.021 KB) | DOI: 10.24843/ATBES.2020.v04.i02.p01

Abstract

One conventional method that usually done when the organism infected by pathogenic bacteria is using antibiotics, either with single or combination usage. However, the misuse of antibiotics dosages leads to resistance development of pathogenic bacteria. This study aims to determine the antibiotic resistance level of Vibrio spp. which was isolated from the waters of North Bali and to investigate the difference of resistance level between Vibrio spp. isolated from the cultivation area and outside the cultivation area. This research was conducted at the Microbiology Laboratory of BKIPM Denpasar and the Laboratory of Fisheries at the Faculty of Marine Science and Fisheries, Udayana University from November 2019 to February 2020. Antibiotic tests were carried out in vitro using 8 types of antibiotics namely tetracycline, oxytetracycline, enrofloxacin, ciprofloxacin, amoxycillin, doxycycline, ampicillin, and erythromycin with different concentrations of 0.5, 1, 2, 4, 8, 16, 32, 64, 64, 128, 256 and 512 ppm. and this test was carried out using a microplate reader to obtain absorbance values before and after incubation to determine the level of resistance of isolated Vibrios. The research showed that overall minimum inhibitory concentration (MIC) of Vibrio was below 100 ppm while the Vibrio spp. isolated from cultivation area have higher resistance level compared to outside cultivation area.
Studi Perubahan Kandungan Histamin Ikan Lemuru (Sardinella lemuru) Pada Kondisi Suhu Ruang/Terbuka Wafi Ayodhya Satyadharma; Ima Yudha Perwira; I Wayan Darya Kartika
Current Trends in Aquatic Science Vol 5 No 1 (2022)
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Kelautan dan Perikanan, Universitas Udayana

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Examination the quality of freshness of fish is important to increase the level of fish consumption (protein consumption) of Indonesian society. If the handling is not correct, the protein contained in fish will be used by microorganisms to reproduce and reduce the quality of the fish and the formation of histamine content. The purpose of this study is to determine the histamine content in sardine fish and the relationship between the histamine content in sardine fish that were left at room temperature. This research is conducted by taking sardine fish samples at PPN Kedonganan, then leaving them on a 2 hour time scale. After settling the sardine fish, the histamine content testing using the ELISA method. Histamine content in sardines (Sardinella lemuru) left for 2 hours ranges from 3.1-39.9 ppm, histamine content in sardines (Sardinella lemuru) which is left for 4 hours ranges from 30,0-40,5 ppm, and histamine content in sardines (Sardinella lemuru) which were left for 6 hours ranged from 42.1-100 ppm.The increase in histamine content in sardine fish (Sardinella lemuru) can be affected by room temperature, the longer the sardine fish is left at room temperature, the histamine content in sardine fish can increase.
Peringatan Dini Keberadaan Arsen (As) pada Air dan Sedimen di Hilir Sungai Tukad Badung, Bali Alfi Hermawati Waskita Sari; I Wayan Darya Kartika
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.p04

Abstract

Tukad Badung is a large river in Bali that crosses Denpasar City which is densely populated and has a variety of activities: household activities, agriculture, animal husbandry, hotels, hospitals and industry. These various activities result in the entry of various heavy metals into the river water, including Arsenic (As), which eventually settles in the sediment. Arsenic has high toxicity and is included in Endocrine Disrupting Chemicals (EDCs). Information related to the presence of Arsenic in waters and sediment is very necessary to prevent its negative impact on ecosystems and human health. This research method is descriptive. Arsenic was 0.769 mg/L at point I, was not detected at points II and III, while at point IV Arsenic was measured at 0.081 mg/L. Arsenic (As) at point I and IV exceeded the threshold set based on PP number 82 of 2001 concerning Water Quality Management and Water Pollution Control, because it measured > 0.05 mg/L. The content of Arsenic (As) in downstream river sediment Tukad Badung, taken at point IV, measured 22.895 mg/kg; this value has also exceeded the threshold.
Kandungan Bahan Organik Total (BOT) dan Kekeruhan pada Air di Estuari DAM, Badung, Bali Ahmad Alfian Rahman; Ima Yudha Perwira; I Wayan Darya 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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This study aimed to know the Total Organic Matter (TOM) of water and the water quality in the Estuary DAM, Badung, Bali. This study was carried out for 1 month along March of 2021. Water samples were collected from 4 stations representing: the inlet (station 1), the middle part (station 2 and 3), and the outlet (station 4). The TOM of water was measured using Permanganate Test titrimetrically. Dissolved Oxygen (DO), pH and water turbidity were measured using: DO meter, pH meter, and Turbidimeter. Result of the study showed that the TOM of water in the Estuary DAM was ranging from 1,8 to 13,9 mg/L. The TOM of water at Week 2 and 4 was relatively low compared to other period which might be caused by dilution regarding to the high rainfall in this period. The DO level was ranging from 4,0 to 6,5 mg/L, pH was ranging from 6,0 to 6,2, and turbidity was ranging from 3,73 to 13,82 mg/L
Co-Authors Agus Wahyudi Ahmad Alfian Rahman Alfi Hermawati Waskita Sari Alya Namira Anisa Oka Dina Arisanti Dyah Puspitasari Atsna Qi Doma T. Manihuruk Bagus Made Sabda Nirmala Bagus Putu Wahyu Nirmala Deta Miriam Br Sitepu Devi Ulinuha Dewangga Ari Kusuma Putra Hutagaol, Larasati I Gede Agus Isha Purusa I Kadek Alamsta Suarjuniarta I Ketut Wija Negara I Wayan Arthana I Wayan Arthana I Wayan Restu I Wayan Restu I Wayan Restu Ika Setiarini Ima Yudha Perwira Ima Yudha Perwira Johannes Lumban Tobing Jordan Alexander Anggiat Simanjuntak Kadek Bayu Prabha Mahesswara Ketut Adnyane Mudite Mahendra Duwi Astutik Ni Luh Watiniasih Pande Gde Sasmita Julyantoro Putu Eka Wirawan Sherina Oktafianti Sitanggang, Melani Theresia Alvianita Muga Tomtommy Haykal Wafi Ayodhya Satyadharma Widya Purnama Dewi Wini - Trilaksani Yulia Kartika Yusuf Arifianto Purnomo