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All Journal Journal of Marine and Aquatic Sciences Buletin Udayana Mengabdi Bumi Lestari Current Trends in Aquatic Science Samakia: Jurnal Ilmu Perikanan Journal of Aquaculture and Fish Health Journal of Fish Health (JIMBE) Manfish: Jurnal Ilmiah Perikanan dan Peternakan Advances in Tropical Biodiversity and Environmental Sciences
Dewa Ayu Angga Pebriani
Program Studi Manajemen Sumberdaya Perairan, Fakultas Kelautan Dan Perikanan, Universitas
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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Journal : Bumi Lestari

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Keanekaragaman dan komposisi jenis plankton pada kolam bioflok ikan nila (Oreochromis niloticus) Ni Kadek Vindi Wedhawati; Pande Gde Sasmita Julyantoro; Dewa Ayu Angga Pebriani
Bumi Lestari Journal of Environment Vol 22 No 2 (2022)
Publisher : Environmental Research Center (PPLH) of Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/blje.2022.v22.i02.p02

Abstract

Aquaculture is an activity to cultivate aquatic biota in controlled media. One of the cultivated fish resources is tilapia (Oreochromis niloticus). Tilapia production continues to be increasing to meet increasing of consumer demand. The emergence of the problem of organic matter levels in the water could be harmful to both of fish and the environment. One of the solution to overcome this problem is by application of biofloc technology. The purpose of this study was to determine the diversity and composition of plankton species in tilapia biofloc ponds in Tiga Village, Susut District, Bangli Regency. This research was conducted in March-May 2021 in Tilapia Biofloc Pond. The research used a simple random sampling method. Sampling was carried out once in three biofloc ponds where each pond had 5 points. Data analysis is using the Microsoft Excel program. The data is present in the tables and charts consisting of the abundance, diversity, composition, dominance, and uniformity index of plankton. Based on the research results, it is known that there are 12 genus of phytoplankton and 4 genus of zooplankton. Phytoplankton diversity index values ??ranged from 1.31 to 1.65. Zooplankton diversity index values ranged from 0.79 to 1.08. The composition of phytoplankton species came from the genus Scenedesmus, Chlorella, Coelastrum, Chroococcus, Gonatozygon, Pediastrum, Nitzschia, Navicula, Synedra, Triceratium, Chaetoceros, and Pesudanabaena. The composition of zooplankton species comes from the genus Brachionus, Euchlanis, Tokophyra, and Vorticella. The water quality measured during the study was a temperature value ranging 25 oC, a pH value ranging from 7,12 – 7,18, a DO value ranging from 6.6 to 6.9 mg/L, an ammonia value ranging from 1.41 to 1.51 mg/L, and a nitrate value ranging from 1.84. -3.69 mg/L. This value is still in the optimal range for plankton life.
Kualitas Air, Pertumbuhan dan Kelulushidupan Benih Abalone (Haliotis squamata) dengan Aplikasi RAS di BPIUUK Karangasem Bali Arief Prayoga Akbar; Pande Gde Sasmita Julyantoro; Dewa Ayu Angga Pebriani
Bumi Lestari Journal of Environment Vol 22 No 2 (2022)
Publisher : Environmental Research Center (PPLH) of Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/blje.2022.v22.i02.p01

Abstract

Abalone is one of the sea snails that have high economic value and has advantages because it has a high protein content of 71.99%, a fat content of 3.24%, and can be used as medicine. The high demand for abalone causes the increase of wild capture and lead to scarcity of abalone in the waters. One way to overcome this problem is by cultivate the abalone. Abalone cultivation can be done with a monoculture system. One of the technologies applied is by using a recirculation aquaculture system (RAS), which is reprocessing the water used so that it can be reused for cultivation activities. The purpose of this study was to analyze the parameters of water quality, growth length, weight and survival of abalone (Haliotis squamata) seeds using the RAS system. The research was conducted in June – September 2020 at the Shrimp and Shellfish Parent Center, Karangasem, Bali. The research was performed by purposive sampling method. The water quality parameters data such as nitrite, ammonia, TSS pH, temperature, DO, and salinity were taken. The results of the measurement of water quality are nitrite 0 – 0.338 mg/L, ammonia 0 – 0.09 mg/L, TSS 0 – 15 mg/L, pH 7 – 8, temperature 26 – 28 oC, DO 4.3 – 7.07 mg/L, and salinity 31 – 38 ppt. Those values are still in the optimal range for abalone culture. The growth in length and absolute weight of abalone seeds during the study were 25.17 mm/ind. and 9.15 g/ind., respectively, and the survival value was 99.5% during the 100-day culture period.
Co-Authors Amayliana Ajeng Nastiti Andi Mannojengi Ari Isnen Sobari Arief Prayoga Akbar Aristiani Rusdi Oktaviyanti Arya Maulana Rabani Ayu Ashari Margareth Sinaga Ayu Putu Wiweka Krisna Dewi Bagus Sudananjaya Budhi Wahyu Nurindra Claudy Margaretha Kandouw Dahlia Sandewi Endang Wulandari Suryaningtyas Grace Adelina Girsang Gunawan Tarigan Handayani Sitorus I Ketut Wija Negara I Wayan Arthana I Wayan Restu Ima Yudha Perwira Ima Yudha Perwira Irene Yolanda Br Ginting Josua Siagian Josua Siagian Kadek Adi Chandra Kusuma Kolis Pratama Kolis Pratama Lasmana Prasat Ni Kadek Vindi Wedhawati Ni Luh Komang Ayu Maitri Jayanthi Ni Luh Watiniasih Ni Putu Emie Noviana Ni Putu Putri Wijayanti Octovianus Octovianus Odjastira Vidyastari Pande Gde Sasmita Julyantoro Pande Gde Sasmita Julyantotro Putu Angga Wiradana Putu Eka Sudaryatma Putu Eka Sudaryatma Putu Frissa Anasthasya Widhiandari Ratriana Hartini Saleh Ravita Kusuma Dewi Suprabadevi Ayumayasari Saraswati Suprabadevi Ayumayasari Saraswati Suprabadevi Ayumayasari Saraswati Suprabadevi Ayumayasari Saraswati Syahriyani Purba Syifa Maria DiazGonzales Yulihatul Meisaroh