Article Per Year (5 Year)
p-Index From 2021 - 2026
3.138
P-Index
This Author published in this journals
All Journal METAMORFOSA Journal of Biological Sciences Journal of Marine and Aquatic Sciences Jurnal Biologi Udayana Bumi Lestari Current Trends in Aquatic Science Samakia: Jurnal Ilmu Perikanan INTERNATIONAL JOURNAL OF ECONOMIC LITERATURE Zoologi: Jurnal Ilmu Peternakan, Ilmu Perikanan, Ilmu Kedokteran Hewan Advances in Tropical Biodiversity and Environmental Sciences
Ayu Putu Wiweka Krisna Dewi
Program Studi Manajemen Sumberdaya Perairan, Fakultas Kelautan Dan Perikanan, Universitas Udayana
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Earth & Planetary Sciences Economics, Econometrics & Finance Energy Environmental Science Immunology & microbiology Medicine & Pharmacology Veterinary Other

Published : 26 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 7 Documents
Search
Journal : Current Trends in Aquatic Science

 1 
Diversitas Perifiton Pada Daun Lamun Enhalus acoroides Di Perairan Karangsewu, Teluk Gilimanuk, Taman Nasional Bali Barat Arliza Cynthia Razali; Ni Luh Watiniasih; Ayu Putu Wiweka Krisna Dewi
Current Trends in Aquatic Science Vol 2 No 2 (2019)
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Kelautan dan Perikanan, Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (667.176 KB)

Abstract

Seagrass is one of the important ecosystems, both physically and biologically. In addition, seagrasses also act as the main producers in food webs, become shelters, forage and breed various types of biota, one of which is periphyton. Periphyton is a collection of micro-organisms and plants (a collection of cyanobacteria and microinvertebrate algae) that live around the epiphyton in the waters. This study aims to determine the type composition and diversity of periphyton that attaches to seagrass leaves. The method used is the observation method. Data retrieval is done by the transect line method. Periphyton compositions obtained were as many as 23 types of periphyton consisting of 4 classes, namely Bacillariophyceae (16 species), Cyanophyceae (4 species), Euglenophyceae (1 species) and Chlorophyceae (2 species). The highest composition was found in the Bacillariophyceae class, which was 63% and the lowest composition was in the Chlorophyceae class of 1%. Periphyton diversity includes diversity index, uniformity index and dominance index. Where the value of the diversity index is classified as moderate, perifiton uniformity index value is high, and the perifiton dominance index value is relatively low.
Pengaruh Penambahan Air Cucian Beras terhadap Laju Pertumbuhan Spirulina sp. Annisa Nur Safitri Utomo; Pande Gde Sasmita Julyantoro; Ayu Putu Wiweka Krisna Dewi
Current Trends in Aquatic Science Vol 3 No 1 (2020)
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Kelautan dan Perikanan, Universitas Udayana

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

Abstract

Culture media is one of the important factors for microalgae growth. Adding fertilizer to culture media can influence the density of Spirulina sp. The use of rice water can be used as an alternative fertilizer for culture media because it is good for the growth of Spirulina sp. Rice water contains nutrients including nitrogen, phosphorus and vitamin B1. This study aims to determine the effect and determine the concentration of rice water media on the growth rate of Spirulina sp. culture. The experiment was conducted in December 2018 to January 2019 at Greath Hall of Brackishwater Aquaculture Fisheries (BBPBAP) Jepara, Central Java. The experiment used a completely randomized design (CRD) with five treatments and three replications. The test material in the study was Spirulina sp. with an initial density of 5×103 cells/ml and the fertilizer used is rice water and walne. The main parameters observed were Spirulina sp. cell density. while the supporting parameters observed were measurements of temperature, pH, DO, salinity, nitrate and phosphate. The dosage of adding rice washing water is treatment A1 (1 mL/L), A2 (3 mL/L), A3 (5 mL/L), K- (0 mL/L) and K + using walne fertilizer with an optimum dose of 0.5 mL/L. The results showed that the addition of rice water had a positive effect on the growth rate of Spirulina sp. The addition of rice water produces the optimum growth rate in treatment A1 which is equal to 0.57±0.001 cells/day. The ANOVA test results showed that the addition of rice water had a significant effect (P <0.05) on the growth rate of Spirulina sp.
Keterkaitan Tingkat Kesuburan Perairan Keramba Jaring Apung Dengan Fitoplankton Di Desa Terunyan, Danau Batur, Bali Ifan Martin Nopem; I Wayan Arthana; Ayu Putu Wiweka Krisna Dewi
Current Trends in Aquatic Science Vol 3 No 1 (2020)
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Kelautan dan Perikanan, Universitas Udayana

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

Abstract

This objective of this study is to determine the relationship of the level of water fertility in the waters of cage with phytoplankton in Terunyan Village, Batur lake. Data collected once a week in three months from November 2018 - January 2019. This study used descriptive methods and sampling points were determined using a purposive sampling technique based on the number of cage in the lake which consists of 3 points. Points 1 was the maximum number of cage of ± 500 pieces. Points 2 has a smaller number of cage which was ± 200 pieces. Points 3 was in location of no cage site. The abundance of phytoplankton tend to be less in the point that had more cages and overall the study obtained 14 phytoplankton genera from 4 phyla. The value of phytoplankton Abundance ranges from 4647 -7374 sel/L which is cathegorized in mesotrophic waters. The results of measurement of water quality parameters in a row with the range TSS 5.0 - 6.7 mg/L; Ammonia 0.155 - 0.177 mg/L; Nitrate 0.288 - 0.306 mg/L; Phosphate 0.207 - 0.565 mg/L; pH 7.9 - 8.0; Temperature 26 - 270C, Turbidity 3.049 – 3.410 NTU; DO 6.4 - 6.9 mg/L; Brightness 135.3 - 140.1 cm and TDS 107.5 - 130 mg/L.
Pertumbuhan Rumput Laut (Eucheuma cottoni) Menggunakan Metode Penanaman Berbeda Dengan Sistem Kantong Di Perairan Pantai Pandawa, Badung, Bali Akbar Akbar; Ni Luh Watiniasih; Ayu Putu Wiweka Krisna Dewi
Current Trends in Aquatic Science Vol 3 No 2 (2020)
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Kelautan dan Perikanan, Universitas Udayana

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

Abstract

This study aims to determine the level of effectiveness and efficiency of seaweed growth grown in bags with different methods. This research was conducted in the village of Kutuh in the waters of Pandawa Beach in December 2019 to January 2020, by taking data once a week for 6 weeks. This research is experimental using Completely Randomized Design (CRD) which consists of two different treatments namely A (Apart in a bag) and B (Bound in a bag). The results showed that the growth pattern of seaweed in treatments A and B was almost the same. Treatment A added weight of seaweed in the 6th week reached 638,444 grams and treatment B reached 637,333 grams. Specific Growth (SGR) Treatment A was 4,409% while treatment B was 4,413%. The results of interview of 10 respondents who were interviewed 70% of farmers prefer to remain a seaweed cultivator and another 30% choose to switch professions as a provider of tourism services. Of the 70% percentage can be said that 100% of farmers prefer Treatment A as a method that can be applied. The measurement of water quality during the study were temperature range between 28,5 - 33 0C, depth ranged from 0,47 – 1,5 m, pH ranged from 7-7.7, salinity ranged from 26,3 - 34 ppt, DO ranged from 5,1 – 7,9 mg / l, nitral ranged between 1,87 – 2,04 mg / l, phosphate ranges from 0,25 – 0,33 mg / l. The value of water quality is still in the optimal range for seaweed growth.
Kelimpahan dan Similaritas Gastropoda di Perairan Melasti dan Segara Samuh, Badung, Bali Gusti Ayu Manik Pradnyani; I Wayan Arthana; Ayu Putu Wiweka Krisna Dewi
Current Trends in Aquatic Science Vol 1 No 1 (2018)
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Kelautan dan Perikanan, Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (773.531 KB) | DOI: 10.24843/CTAS.2018.v01.i01.p05

Abstract

Melasti and Segara Samuh beach are located in Badung Regency. Melasti beach (station 1) has a water activity only used for swimming. Meanwhile, Segara Samuh beach (station 2) has been utilized for tourism, such as water sport, and fishing. The development of tourism in both stations is feared to affect the abundance of living biota existence in it. This study aims to identify the difference morphological characteristic and the abundance of gastropods, as well as the similarity between points by type of gastropods. This research has been conducted on February-March 2018. This research also used descriptive quantitative method. It has been found that there were 33 species in two stations that have not much different morphological characteristic and there were 25 different spesies in two stations . Station 1 has value of gastropod abundance which was on 66,8 ind/m2, while station 2 was only 36 ind/m2. In general, the high relation and shells diameter have positive values with the highest R2 is 0,99. A high value of similarity was found on 6 points as the result to the abundance of Conus lividus existence at point 4 and 5 with 0,48 as the highest result of negative correlation analysis. The measurement of water quality parameter at station 1 has resulted as follow; pH 7,7–7,8, DO 5,3–5,6 mg/L, salinity 30,3–30,9 ppt, and temperature 28–28,1 0C. Meanwhile at station 2, it was resulted with pH 7,7, DO 5,3–5,4 mg/L, salinity 30–30,8 ppt, and temperature 29,6-30 0C. Water condition in two stations were still within the range of seawater quality standards for marine life.
Potensi Pengembangan Budidaya Ikan Gurame (Osphronemus gouramy) di Keramba Jaring Apung Danau Batur Kintamani, Bali Gede Pasek Sutedja; I Wayan Arthana; Ayu Putu Wiweka Krisna Dewi
Current Trends in Aquatic Science Vol 2 No 2 (2019)
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Kelautan dan Perikanan, Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (652.755 KB)

Abstract

Penelitian ini bertujuan untuk mengetahui ukuran benih ikan Gurame (O. gouramy) yang optimal untuk budidaya pada keramba jaring apung di Danau Batur yang dilihat dari laju pertumbuhan dan kelulushidupan benih ikan Gurame. Penelitian ini dilakukan di Keramba Jaring Apung yang terletak di Desa Trunyan, Bali. Pengambilan data dilakukan setiap dua minggu dalam waktu tiga bulan dari bulan November 2018 – Januari 2019. Pengukuran panjang benih ikan, berat benih ikan dan kualitas air dilakukan secara insitu. Penelitian ini menggunakan Rancangan Acak Lengkap (RAL) yang terdiri dari tiga perlakuan dan tiga kali pengulangan yaitu perlakuan A (Benih ikan ukuran 3 cm), perlakuan B (Benih ikan ukuran 4 cm), dan perlakuan C (Benih ikan ukuran 6 cm). Hasil penelitian ini mengindikasi benih ikan Gurame dapat hidup pada Keramba Jaring Apung di Danau Batur. Benih ikan Gurame perlakuan A menunjukan pertumbuhan yang paling baik dengan nilai SGR 0,80± 0,058%/hari, panjang mutlak 3,49 ± 0,22 cm/3 bulan, panjang nisbi 116,44 ±7,43%/3 bulan, dan nilai SR sebesar 72 ± 0,061%/3 bulan. Kualitas air yang didapat selama penelitian yaitu suhu dengan nilai rata-rata 26,8 ± 0,89 ºC, nilai pH rata-rata sebesar 8,3 ± 0,93, dan nilai DO rata-rata sebesar 6,3 ± 1,45 ppm.
Evaluasi Kualitas Air dan Kondisi Lingkungan pada Lokasi Budidaya Rumput Laut (Eucheuma cottonii) di Perairan Pantai Pandawa, Bali Devita Eka Saputri; Ima Yudha Perwira; Ayu Putu Wiweka Krisna Dewi
Current Trends in Aquatic Science Vol 4 No 2 (2021)
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Kelautan dan Perikanan, Universitas Udayana

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

Abstract

This research aimed to observe water quality and environmental conditions in the location of seaweed (Eucheuma cottonii) cultivation area in Pandawa Beach Waters. The research was conducted from December 2019 to January 2020. Water sampling was carried out at 3 different stations in the west side of Pandawa Beach Waters. Measuring temperature using a thermometer, salinity using a refractometer, water pH using a pH meter, and Dissolved Oxigen (DO) of water were measured using the Winkler method. Nitrate and phosphate in the water was measured using Salifert KIT. The result showed that water temperature was raning from 28.7 to 30oC, salinity was from 30 to 31 ppt, pH was from 7.5 to 7.66, and DO was from 5.60 to 6.03 mg/L. Analysis of nitrate showed range from 1.52 to 1.77 mg/L, while phosphate was ranging from 0.22 to 0.32 mg/L. These results showed that water quality in the location is suitable for the cultivation of seaweed.
Co-Authors Akbar Akbar Alfajri Yuda Permana Annisa Nur Safitri Utomo Arliza Cynthia Razali Devita Eka Saputri Dewa Adi Putra Dewa Ayu Angga Pebriani Endang Wulandari Suryaningtyas Gde Raka Angga Kartika Gede Pasek Sutedja Gusti Ayu Manik Pradnyani Hamdan Hamdan I Putu Eka Mahendra I Wayan Arthana I Wayan Arthana Ifan Martin Nopem Ima Yudha Perwira Juan Aldo Jaya Pradipta Sitepu Lisa Rosalia Prayuda Made Tri Loka Ni Desak Putu Dita Herlinawati Ni Desak Putu Ida Suryani Ni Luh Watiniasih Ni Made Ernawati, Ni Made Ni Pande Putu Suji Dian Antari Ni Putu Putri Wijayanti Ni Putu Sintha Maharani Nike Aryanta Manalu Nyoman Dati Pertami Octria Vesensia Pande Gde Sasmita Julyantoro Putri Febrine Nainggolan Putu Tegar Wiguna Putra Rani Ekawaty Resti Ayu NengTias Suprabadevi Ayumayasari Saraswati Yesi Breanita Yopie Ryan Audy Harahap Yuli Krisnawati Yuni Debora Prasicilia Sitorus