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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
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Intensitas dan Prevalensi Endoparasit pada Ikan Layang (Decapterus russeli) yang didaratkan di Pantai Kedonganan Bali Amayliana Ajeng Nastiti; Pande Gde Sasmita Julyantoro; Dewa Ayu Angga Pebriani; Endang Wulandari Suryaningtyas
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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Abstract

The Indian scad (Decapterus russeli) is a pelagic fish that has high economic value, found throughout the Indonesian waters. The availability of Indian scad resources makes this fish easy to find, especially in Kedonganan Beach, Bali. The use of Indian scad for human consumption makes it necessary to pay attention to the quality of indian scad in order to avoid fish diseases, such as parasites. The attack of endoparasites in Indian scad can be zoonotic, which can be dangerous for humans who consume them, so research is needed to determine the density of endoparasite attacks and the percentage of endoparasites in indian scad. Samples of Indian scad (D. russeli) were obtained randomly from PPI Kedonganan and Kedonganan Fish Market. The observed organs were intestines, gonads and liver. The research was conducted for 1 month from 16 December 2020 to 17 January 2021 and fish samples were taken by random sampling. There were 35 fish samples (D. russeli) examined. The endoparasites found were Anisakis sp. (316 individuals), Camallanus sp. (15 individuals), and Lecithocirium sp. (33 individuals). The highest intensity in the genus Anisakis was 9.2 ind/fish and was classified as moderate infection and the highest prevalence was also in the Anisakis genus, which was 97.14% with (almost always categories), 60% of the genus Lecithocirium (very frequent categories), and the Camallanus genus of 28.50% with (frequent category).
Tingkat Kematangan Gonad dan Fekunditas Abalon (Haliotis squamata) Dewa Ayu Angga Pebriani; 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

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Abstract

This study aimed to find out the relationship between the maturity level of female abalone gonads with fecundity and egg diameter size of abalone. The results obtained showed that abalone having gonadal maturity level 1 was in the range of 3-4.5cm; gonadal maturity level 2 in the range size of 4.6-6 cm; and gonadal maturity level 3 in the size range> 6 cm. The results of the abalone gonad histology test showed that abalone with gonadal maturity level 1 had more ootid distribution than the primary oocyte. gonadal maturity level 2 has more ootid distribution, primary oocytes than secondary oocytes. Whereas in gonadal maturity level 3 it appears that secondary oocytes dominate which means the gonads are mature and ready to be spawned. The oocyte diameter is getting bigger and more similar simultaneously with an increasing level of gonad maturity. Abalone with gonadal maturity level 1 has an average oocyte diameter of 187 ?m gonadal maturity level 2 of 190 ?m, and gonadal maturity level 3 of 217 ?m.Abalone fecundity for gonadal maturity level 1 ranged from 60,480-86,190 oocytes; TKG 2 ranges from 196,560-214,520 oocyte grains; and TKG 3 ranges from 483,600-518,880 oocyte grains. Based on the results obtained, it can be concluded that the higher the level of maturity of the abalone gonad, the greater the fecundity with the distribution of more secondary oocytes seen in the results of the gonad abalone histology test.
Keanekaragaman Gastropoda Sebagai Bioindikator Kualitas Perairan di Pantai Bangklangan Kabupaten Karangasem Bali Dahlia Sandewi; Ni Luh Watiniasih; Dewa Ayu Angga Pebriani
Current Trends in Aquatic Science Vol 2 No 2 (2019)
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Kelautan dan Perikanan, Universitas Udayana

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Abstract

This research was done at Bangklangan Beach, Perasi Village, Karangasem Regency, Bali. The purpose of this study was to determine diversity of Gastropods as bioindicator of water quality in Bangklangan Beach. Gastropods sampling was done by using a line transect technique stretched along 75 meters parallel to the shoreline. The size of the quadrant used is 1m × 1m. Result of research found 48 species Gastropoda joined in 14 Family. The density number of the gastropods in Bangklangan Beach was 218.25 ind/m2. The diversity index of the gastropods ranged from 2.21 to 2.83, the evenness index ranged from 0.76 to 0.78, the dominance index ranged from 0.11-0.18. The value of water quality in Bangklangan Beach such as water temperature ranged from 29.8?C-30.6?C, pH waters ranged from 8.3-8.4, dissolved oxygen ??ranged from 5.4-5.6 mg /l, water salinity ranged from 29.1-30.3 mg/l, water turbidity ranged from 1.25-1.64 NTU, BOD5 ranged from 7.54-8.69 and TSS ??ranged from 0.80-0.95 mg/l. Based on the correlation of temperature with H' has a very weak positive correlation with a value of 0.149, dissolved oxygen with H' has a very weak positive correlation with a value of 0.177, acidity with H' has a very weak negative correlation value of -0.236, salinity with H' has a weak negative correlation with a value of -0.459, turbidity with H' has a weak positive correlation with a value of 0.332, BOD5 with H' has a very weak positive correlation value with a value of 0.147. TSS with H' has a very weak positive correlation value of 0.013.
Keanekaragaman Makrozoobetos Sebagai Bioindikator Kualitas Perairan di Taman Hutan Raya Ngurah Rai, Bali Ari Isnen Sobari; Ni Luh Watiniasih; Dewa Ayu Angga Pebriani
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

Ngurah Rai Forest Park (Tahura) is one of the mangrove ecosystem areas in Bali which is an area of brackish forest type. Ngura Rai Tahura is based on administration in two city districts namely Badung and Denpasar. The Tahurah Ngurah Rai area is surrounded by housing, restaurants, hotels, malls, and shops as centers of community activities that have the potential to cause disruption to the balance of the aquatic ecosystem. The purpose of this research is to determine the diversity of macrozoobenthos and the condition of water quality in the mangrove ecosystem area in Tahura Ngurah Rai, Bali. This research uses a descriptive quantitative method that is exploratory in order to obtain facts of the conditions that exist through surveys in the field and identification in the laboratory. The sampling technique used was purposive sampling with transect quadrant measuring 1 x 1 m with teransek determination area of 5 m x 5 m. Sampling was carried out at four stations which included macrozoobenthos samples, measurement of water quality parameters (temperature, salinity, pH, DO, turbidity), and analysis of water-based substrates performed visually. Data from research conducted at three different locations in the Ngurah Rai Tahura mangrove ecosystem area found 55 species with a total abundance at station 1 6.68 ind / m2, station 2 4.52 ind / m2, station 3 3.55 ind / m2 from the class Gastropoda, Crustacea, Bivalvia, and Polychaeta.. Diversity index at the three stations is classified as moderate level with water conditions that have experienced pressure or disturbance.
Distribusi Dan Kelimpahan Bulu Babi (Echinoidea) Di Perairan Pulau Pasir Putih, Desa Sumberkima, Buleleng, Bali Ni Putu Emie Noviana; Pande Gde Sasmita Julyantoro; Dewa Ayu Angga Pebriani
Current Trends in Aquatic Science Vol 2 No 1 (2019)
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Kelautan dan Perikanan, Universitas Udayana

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Abstract

This research was conducted in the waters of Pasir Putih Island, Sumberkima Village, Gerokgak District, Buleleng Regency, Bali Province. This research was conducted from February to April 2018. This study aims to determine the distribution patterns and abundance of sea urchins, as well as water quality conditions in the waters of Pulau Pasir Putih. The method used was the method of observation and descriptive method. In this study, there were 5 species of sea urchins from 4 families, Echinothrix calamaris and Diadema setosum from Diadematidae family, Tripneustes gratilla from Toxopneustidae family, Brissus latecarinatus from Brissidae family and Echinometra mathaei from Echinometridae family. Echinothrix calamaris has uniform distribution pattern with Id <1, Diadema setosum has clustered distribution pattern with Id> 1, Tripneustes gratilla has clustered distribution pattern with Id> 1, Brissus latecarinatus has clustered distribution pattern with Id> 1, Echinometra mathaei has clustered distribution pattern with Id> 1. Echinothrix calamaris abundance is 2,42 ind/m2 with relative abundance is 21%, Diadema setosum abundance is 6 ind/m2 with relative abundance is 53%, Tripneustes gratilla abundance is 2,33 ind/m2 with relative abundance is 3%, Brissus latecarinatus abundance is 0,17 ind/m2 with relative abundance is 2%, and Echinometra mathaei abundance is 2,42 ind/m2 with relative abundance is 21%. The value of community structure of sea urchins in the water of Pasir Putih Island indicates that medium diversity, unstable uniformity and low dominance. The condition of water quality in Pulau Pasir Putih was still within the threshold for the life of sea urchins. Based on the research, Diadema setosum species has the highest abundance with clustered pattern distribution.
Profil Nutrien Nitrat dan Fosfat pada Air di Sungai Jangga, Karangasem, Bali Syahriyani Purba; Ima Yudha Perwira; Dewa Ayu Angga Pebriani
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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Abstract

Jangga river is one of the rivers in the Bali and has important ecological function. On the other hand, the jangga also became a waste-disposal of anthropogenic activities surround the river. That could an affect to increase content of nitrate and phosphate was found in Jangga river. This study was aimed to identify the concentration of nitrate and phosphate in the water of Jangga river. This study was conducted in a descriptive method by taking samples five stations from January to February 2020. The main parameters measured are Nitrate, phosphate and other water quality parameters (turbidity, temperature, pH, TDS, TSS, DO, COD and chromium). The result of this study showed that nitrate levels were high. The value of nitrate ranged from 5.3 mg/L to 7.6 mg/L. Parameter of phosphate was found in the Jangga river is also high. The value of phosphate ranged from 0.7 mg/L to 1.3 mg/L These are affected by the sewage from anthropogenic activities was found around the Jangga river including detergent and waste from agricultural and fisheries activity around the Jangga river.
Tingkat Kesuburan Muara Tukad Aya, Jembrana Bali Berdasarkan Kelimpahan Plankton dan Ketersediaan Nutrien Josua Siagian; I Wayan Arthana; Dewa Ayu Angga Pebriani
Current Trends in Aquatic Science Vol 2 No 2 (2019)
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Kelautan dan Perikanan, Universitas Udayana

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Abstract

River estuaries have characteristics that were directly related to the sea, resulting of mixing water which resulting in a unique in terms of complex and dynamic environment and community structure of biota that was different from other waters. The purpose of this study was to determine the fertility level of Muara Tukad Aya base on the abundance of plankton. This research was conducted in February-March 2019 using descriptive quantitative methods. The average value of water quality in the three stations, namely turbidity ranges from 11.5 to 12.48 NTU, temperature 27.61-31.20C, current speed 0-0.2 m / s, brightness 72.32-86.8 cm, salinity 16.0-17.94 ppt, pH 8.02-8.14, Nitrate 0.5-1.05 mg / L, Phosphate 0.08-0.2 mg / L, DO 7.7- 8.8 (mg / L). The abundance of phytoplankton was found in 37 genera, the total abundance at station I (upstream of the estuary) was 1501 cells / l, at station II (open area of estuary) was 1322 cells / l and station III (close area of the estuary) with an abundance of 833 cells / l. Zooplankton abundance was 6 genera, where total abundance at station I was 9 ind / L, station II was 11 ind / l while station III was 10 ind / l . Water quality parameter values at estuary Tukad are still good and optimum except phosphate levels , The abundance of phytoplankton with nitrite and nitrate has a close relationship with the correlation coefficient -0.9014 and 0.8994.
Bioindikator Makrozoobenthos dalam Penentuan Kualitas Perairan di Tukad Mati Badung, Bali Putu Frissa Anasthasya Widhiandari; Ni Luh Watiniasih; Dewa Ayu Angga Pebriani
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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Abstract

Abstract Tukad Mati (Mati River), is a river located in Badung regency. The amount of garbage that enters the river causes sedimentation in the estuary. The water in Tukad Mati becomes dirty and smells bad. There fore water . The degradation of water quality the living organisms. A number of organisms can be functioning as bio-indicators of water quality, such as macrozoobenthos. This study aims to determine Tukad Mati's status based on equitability index, diversity index, and dominance index of macrozoobenthos, and to determine water quality using biological indicators of macrozoobenthos with the Family Biotic Index (FBI). The study was conducted in November 2019. Samples were collected from 3 stations and samples collections ware repeated 4 times during the study. The highest abundance of macrozoobenthos at station I was Notopala sublineata species 6 ind/m2. station II was Semisulcospira libertina 5.16 ind/m2. And station III was Lmynaea acuminata species at 5.56 ind/m2. The diversity index of station I was 2.68, station II was 2.49, and station III was 2.59. Dominance index at the three stations was 2. Similarity index of station I was 0.99, station II was 0.92, and station III was 0.95. The FBI value of station I was 6.32; station II was 6.22; station II was 6.23. Disolved oxygen (DO) ranges from 6.67 to 7.72 mg/L; BOD5 ranges from 9.21 -10.28 mg/L; pH ranges from 5.6 - 5.8; The temperature during the stuy was on average of 30.1°C; the turbidity was ranged form 8.16 - 9.84 NTU. The he substrate of station I was rocky, sandy and muddy; station II was sandy; and station III was muddy sandy. Keywords: Abundance; Biomonitoring, Makrozoobenthos; Water quality, Mati river
Pengaruh Ekstrak Daun Cincau Hijau (Cyclea barbata Miers) Terhadap Infeksi Bakteri Aeromonas hydrophila Pada Ikan Nila (Oreochromis niloticus) Aristiani Rusdi Oktaviyanti; Pande Gde Sasmita Julyantoro; Dewa Ayu Angga Pebriani
Current Trends in Aquatic Science Vol 3 No 2 (2020)
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Kelautan dan Perikanan, Universitas Udayana

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Abstract

This study aims to determine the ability of green grass jelly leaf extract in inhibiting the growth of Aeromonas hydrophila and improving the survival of Tilapia (Oreocrhomis niloticus). This research was conducted at Fisheries Laboratory of Udayana University and UPT Laboratory of Biosciences and Biotechnology of Udayana University from May to August 2019. This experiments were use a completely randomized design (CRD) with three replications for each treatment. Antibacterial activity test was conducted in vitro with five different concentration, namely 1,25%, 2,5%, 5%, 7,5% and 10%. The challenge test was conducted in vivo with five treatments, namely A, B, C, D and E. The research showed that the green grass jelly leaf extract can inhibit the growth of Aeromonas hydrophila in vitro at the smallest concentration (1,25%) and the stronger inhibition capability at higher concentrations. Green grass jelly leaf extract also improve the survival of tilapia fish when infected by Aeromonas hydrophila in the challenge test with a higher survival rate of 76,7% compared to those without green grass jelly leaf extract addition with a survival value of only 46,7%. The quality of water measured during the study such a temperature ranging from 27,7-28?C, pH 7,2 to 7,5, and DO 5,5 to 6,7 ppm. The value of water quality is still in the optimal range for the life of Tilapia. Keywords: Extract; green grass jelly; phatogen
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.
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