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All Journal Journal of Marine and Aquatic Sciences Buletin Udayana Mengabdi E-Journal Of Animal Science Udayana University Jurnal Biologi Udayana Bumi Lestari Ecotrophic, Journal of Environmental Science SIMBIOSIS Current Trends in Aquatic Science Advances in Tropical Biodiversity and Environmental Sciences
Ni Putu Putri Wijayanti
Program Studi Manajemen Sumberdaya Perairan, Fakultas Kelautan Dan Perikanan, Universitas Udayana, Badung, Bali-Indonesia
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Earth & Planetary Sciences Education Energy Environmental Science Veterinary Other

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Journal : Current Trends in Aquatic Science

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Pendederan Ikan Nila (Oreochromis niloticus) Tahap II Menggunakan Pakan Fermentasi dengan Agen yang Berbeda Annas Cesar Mayasha; Pande Gde Sasmita Julyantoro; 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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Fermented feed application for fish nursery have been known could improve nutritional value, growth, and increase digestibility of cultured fish. The purpose of this study was to determine the effect of fermented feed with different fermentation agent on the performance of stage II tilapia nursery. The fermentation agent used in this study were fermipan containing 25 g/kg of yeast (Saccharomyces cerevisiae) and probio?7 containing 25 ml/kg of bacteria (Bacillus sp.). The study was performed by 3 treatments and 3 replications each treatment. The treatments were treatment A (control), treatment B (fermentation using S. cerevisiae 25 g/kg), and treatment C (fermentation Bacillus sp. 25 ml/kg). The observation for 2 months showed that the highest of specific growth rate of tilapia (Oreochromis niloticus) was found in treatment B with 5,12%/day, followed by treatment C (4,90%/day), and the lowest was treatment A (4,80%/day). The highest survival of tilapia (O. niloticus) was found in treatment B of 70%, followed by treatment C (63,33%), and the lowest was treatment A (60%). The results of the One-Way ANOVA statistical analysis with Duncan's post hoc test showed significantly different between treatments for the specific growth rate and survival of tilapia (P<0.05). The highest feed conversion ratio (FCR) was found in treatment A of 2,49, followed by treatment C (2,35), and the lowest was in treatment B (2,29). This FCR results were not significantly different between treatments (P>0.05). Water quality parameters measured include dissolved oxygen (DO), degree of acidity (pH), temperature, ammonia, nitrate, and nitrite were still within optimal range for Tilapia nursery culture.
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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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.
Konsentrasi Logam Berat Timbal (Pb) dan Kadmium (Cd) di Perairan Pelabuhan Benoa Denpasar Doni Samuel Barus; Pande Gde Sasmita Julyantoro; Ni Putu Putri Wijayanti
Current Trends in Aquatic Science Vol 7 No 1 (2024)
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Kelautan dan Perikanan, Universitas Udayana

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Benoa Port is one of the public ports as well as a special export fishing port. The existence of transportation activities at Benoa Port is indicated to have an indirect pollution impact on the waters, so that research related to the heavy metal content of lead (Pb) and cadmium (Cd) in water and water quality conditions in the waters of Benoa Port Denpasar is important to do. Water sampling was carried out at Benoa Port, then the samples were analyzed at the Analytical Laboratory of Udayana University from June-July 2023.The tested water samples were taken from 3 points with 3 repetitions at each point. Point 1 is at the port entrance, point 2 is at the port of the fishing town and point 3 is at RTH Taman Segara. Data from the study was obtained that the highest Pb value was at point 2, which was 0.1 mg/l and the Cd value was 0.054 mg/l. At point 3 the Pb value is 0.025 mg/l and the Cd value is 0.018 mg/l, and the lowest is found at point 1 with a Pb value of 0.02 mg/l and a Cd value of 0.016 mg/l. Water quality parameters measured include temperature, pH, Dissolved Oxygen (DO), and Total Dissolve Solids (TDS). The highest temperature value is found at point 2 of 29.8oC while the lowest temperature value is found at point 1 with a value of 28.6oC.
Pengaruh padat tebar berbeda terhadap pertumbuhan, kelangsungan hidup, dan efisiensi pakan juvenil udang vaname (Litopenaeus vannamei) Kadek Bayu Candra Gotama; Pande Gde Sasmita Julyantoro; Ni Putu Putri Wijayanti
Current Trends in Aquatic Science Vol 7 No 1 (2024)
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Kelautan dan Perikanan, Universitas Udayana

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Abstract

Vaname shrimp (Litopenaeus vannamei) has advantages, such as being more responsive to feed, resistant to diseases and poor environmental conditions, fast growth, high survival rate, and high stocking density. This study aims to examine the effects of different stocking densities on the growth, survival rate, and feed efficiency of vaname shrimp. Vaname shrimp (±0.6 g/shrimp). were stocked in fiber tanks with a volume of 500 liters and filled with seawater with a salinity of 35 ppt. This study used an experimental method with 3 different stocking density treatments: 200 individual/m3 (A), 400 individual/m3 (B), and 600 individual/m3 (C), repeated three times per treatment. The shrimps were cultivated for 60 days and fed at a rate of 5% of their body weight/day four times a day. The results showed that average growth shrimp in treatment A, B, and C were 12.10 g, 10.14 g, and 7.37 g, respectively. The survival rate of shrimp in the treatmen A. B, and C were: 72%, 46,3%, and 56%, respectively. The FCR in the treatment A, B, and C were 0.95; 1.4; and 1.26. One Way ANOVA statistical analysis indicated significant differences (P<0,05) between treatments A dan C in terms of mean body weight growth, as well as between treatments A and B in terms of FCR. This study indicated that different stocking densities affect the growth, survival rates, feed efficiency, and water quality of vaname shrimp.
Co-Authors Alfarisi Prafanda Ana Indriyanti Andi Mannojengi Annas Cesar Mayasha Ayu Putu Wiweka Krisna Dewi Bagus Sudananjaya Bedjo Slamet Dewa Ayu Angga Pebriani Dian Kharisma Ginting Doni Samuel Barus Endang Wulandari Suryaningtyas Fuad Hasin Ahmad Galang Alamin Trisnabatin Gebi Gresi Martina Panjaitan I G. Lanang Oka Cakra I Gede Mahardika I Gede Wahyu Surya Wirawan I Gede Yoga Vikannada Giri I Kadek Tobing Ascahya I Ketut Wija Negara I Komang Yopi Trio Santana I Made Angga Wahyu Dinata I Wayan Arthana I Wayan Restu Ima Yudha Perwira Jefri Boy Pratama Kadek Adi Chandra Kusuma Kadek Bayu Candra Gotama Kintanijaya Kintanijaya Made Ayu Pratiwi Made Tri Loka Natasya Caterina Ni Luh Putu Ayu Puspita Dewi Ni Luh Watiniasih Ni Made Ernawati, Ni Made Ni Putu Bella Yuliana Dewi Ni Putu Diah Kusumawati Ni Putu Sandhitya Candra Kartina Nita Hayani Br. Tarigan-Sibero nyoman anisa Octovianus Octovianus Pande Gde Sasmita Julyantoro Putra, I Nyoman Giri Putri Eka Cahyani Putu Eka Sudaryatma Romlah Setiawati Suprabadevi Ayumayasari Saraswati Suprabadevi Ayumayasari Saraswati Suprabadevi Ayumayasari Saraswati Wayan Putri Prakanti Karya Yohana Christanti Ndale