Garuda - Garba Rujukan Digital

p-Index From 2021 - 2026

1.99

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 SIMBIOSIS Current Trends in Aquatic Science Samakia: Jurnal Ilmu Perikanan Advances in Tropical Biodiversity and Environmental Sciences INTERNATIONAL JOURNAL OF ECONOMIC LITERATURE

Ayu Putu Wiweka Krisna Dewi

Program Studi Manajemen Sumberdaya Perairan, Fakultas Kelautan Dan Perikanan, Universitas Udayana

Author-ID : 3755135

Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Earth & Planetary Sciences Economics, Econometrics & Finance Energy Environmental Science Immunology & microbiology Veterinary Other

Published : 27 Documents Claim Missing Document

Claim Missing Document

Articles

1 2 3

Effects of Different Types of Feed on the Growth and Survival Rate of Betta splendens Resti Ayu NengTias; Ni Luh Watiniasih; Ayu Putu Wiweka Krisna Dewi
Advances in Tropical Biodiversity and Environmental Sciences Vol 5 No 3 (2021): ATBES
Publisher : Institute for Research and Community Services Udayana University

Betta fish (Betta splendens) are freshwater ornamental fish that is very popular because it’s beautiful colors and unique behavior. This study aims to determine the growth measuring weight and length as well as the survival rate of betta fish seeds by providing different types of food that was conducted in door at Tulungagung, East Java, Indonesia. The study was experimentally designed with completely randomized design consisting of 3 treatments and 4 replications. The treatments A was fed with Tubifex sp., treatment B with artificial food (pellets), and treatment C was consisted of a combination of Tubifex sp., and artificial food. The test fish were 30 days old with a stocking density of 5/plastic bucket, where feeding was done ad-libitum. The study was conducted for 42 days. The parameters measured in this study were the growth in absolute weight and absolute length and its survival rate. Observations were analyzed using One Way Analysis of Variance (ANOVA) and further tests were carried out using the Duncan test. The results show that different feeding strategies had a significant effect on the growth of absolute weight and absolute length, and had no significant effect on the survival rate of betta fish. Water quality parameters measured include an average temperature was valued at 25.01oC-25.87oC, while the average pH was 8.42-8.47, and average dissolved oxygen (DO) was 4.13-4.17 mg/L.

Seaweed Growth Rate (Eucheuma cottonii) in Monoculture and Co-Culture Cultivation Systems in Coastal area of Pandawa Beach, Bali Yesi Breanita; Ni Luh Watiniasih; Ayu Putu Wiweka Krisna Dewi
Advances in Tropical Biodiversity and Environmental Sciences Vol 4 No 2 (2020): ATBES
Publisher : Institute for Research and Community Services Udayana University

Seaweed is one of Indonesia's fishery commodities with great potential to be cultivated, the condition of seaweed produced in Indonesia is not optimal yet. This can be seen from the low productivity of seaweed in Indonesia which is caused by the low growth rate. The growth rate of seaweed can be supported by proper planting techniques and cultivation methods. Seaweed farmers generally use planting techniques and traditional cultivation methods called the monoculture system, which is planting one type of plant in an area. As the cultivation systems developed, a new cultivation system was found that supports increased growth of seaweed, namely the co-cultivation. This system is sustainable and environmentally friendly which combines species from various trophic in one system. This research was conducted for 6 weeks from December 2019 to January 2020 in the coastal area of Pandawa Beach, Bali. The data was analysed in Completely Randomized design with three treatments and three replications. The monoculture cultivation system which contain 100 gr of seaweed in a bag was treated as control and co-culture systems were added with 10 and 30 individuals of abalones. The results showed that the growth rate pattern as a measure of weight increased during the time of study. The weight of seaweed was highest in co-cultured treatment with 10 individual abalones. The highest specific growth rate of seaweed occurred in the co-culture system up to 4%/day compared to the monoculture cultivation system only 3.4%/day.

Struktur Komunitas Plankton di Pantai Samuh, Nusa Dua, Bali Dewa Adi Putra; Ni Luh Watiniasih; Ayu Putu Wiweka Krisna Dewi
Metamorfosa: Journal of Biological Sciences Vol 9 No 2 (2022)
Publisher : Prodi Magister Ilmu Biologi, Fakultas MIPA, Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/metamorfosa.2022.v09.i02.p09

Plankton merupakan organisme yang hidupnya melayang-layang di perairan yang pergerakannya dipengaruhi oleh arus. Keberadaan plankton di suatu perairan dapat digunakan sebagai bioindikator karena memiliki tingkat kepekaan tinggi dan juga dipengaruhi oleh perubahan kondisi perairan. Perubahan-perubahan kondisi perairan dapat diakibatkan oleh adanya aktivitas masyarakat. Salah satu pantai yang banyak memiliki aktivitas masyakarat yaitu Pantai Samuh. Penelitian ini dilakukan pada bulan September-Oktober 2021 di Pantai Samuh. Terdapat 3 stasiun pengamatan yaitu stasiun I diperuntukkan sebagai pendaratan kapal, stasiun II umumnya digunakan sebagai tempat rekreasi dan aktifitas masyarakat berwisata, stasiun III diperuntukkan sebagai kawasan perhotelan. Metode yang digunakan mentode deskriptif kuantitatif. Penentuan stasiun dilakukan dengan metode purposive sampling. Berdasarkan hasil pengamatan fitoplankton yang didapatkan di Pantai Samuh sebanyak 4 kelas yakni Bacillariophceae (13 genus), Zygnemophyceae (1 genus), Cyanophyceae (2 genus) dan Dinophyceae (1 genus). Zooplankton yang di temukan di Pantai Samuh sebanyak 4 kelas yaitu Hexanauplia (1 genus), Branchiopoda (1 genus), Crustacea (1 genus) dan Monogonta (1 Genus). Nilai kelimpahan rata-rata fitoplankton yaitu sebesar 347 dan nilai kelimpahan rata-rata zooplankton yaitu sebesar 25, nilai indeks keanekaragaman rata-rata fitoplankton sebesar 1,56 dan nilai indeks keanekaragaman rata-rata zooplankton sebesar 0,79, nilai keseragaman rata-rata fitoplankton yaitu sebesar 0,72dan nilai keseragaman rata-rata zooplankton yaitu sebesar 0,96, nilai dominansi rata-rata fitoplankton yaitu sebesar 0,31 dan nilai dominansi rata-rata zooplankton yaitu sebesar 0,51.

Identification of Dominant Shark Fins Landed at The Port of Benoa, Bali Based on CO1 Gene Yuni Debora Prasicilia Sitorus; Pande Gde Sasmita Julyantoro; Ayu Putu Wiweka Krisna Dewi
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.p07

Indonesia is one of the world's most shark-catching countries. One of the fishery ports that has a by-product of sharks is the Port of Benoa. The purpose of this study was to determine the species and phylogenetic relationship of sharks from dominant fin samples landed at the Port of Benoa, Bali based on the results of morphological identification and DNA barcoding techniques. The study was conducted from January to February 2018 at the Pengawasan Sumberdaya Kelautan dan Perikanan Base (PSDKP) Benoa. This research uses exploration method with survey technique. The data used in this research is primary data of dominant shark fin samples in research location area and secondary data of location where shark caught by fisherman based on PSDKP database. The results showed that by-catch sharks from dominant fin samples at the Port of Benoa, Bali based on morphological identification and DNA barcoding technique were Prionace glauca (Blue Shark) species. The results of phylogenetic analysis of by-catch shark species from dominant fin samples landed at the Port of Benoa, Bali have close relation with Carcharhinidae family. Prionace glauca shark species have an amplified nucleotide base length of 600 pb with similarity reaching 99 values with species present in GenBank.

Analisis Kualitas Air Di Sungai Telagawaja Kabupaten Karangasem, Bali Juan Aldo Jaya Pradipta Sitepu; Ni Luh Watiniasih; Ayu Putu Wiweka Krisna Dewi
Metamorfosa: Journal of Biological Sciences Vol 10 No 1 (2023)
Publisher : Prodi Magister Ilmu Biologi, Fakultas MIPA, Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/metamorfosa.2023.v10.i01.p16

Sungai Telagawaja adalah salah satu sungai alami dengan panorama alam dan persawahan yang menarik, sehingga beberapa bagian lahan mulai beralih fungsi menjadi kawasan penunjang pariwisata maupun pemukiman. Akibat dari alih fungsi lahan ini menyebabkan penurunan kualitas air dari Sungai Telagawaja. Penurunan kualitas air ini menyebabkan menurunya daya guna, hasil guna, produktivitas, daya dukung dan daya tampung dari Sungai Telagawaja. Selain dari alih fungi lahan, kegiatan pertanian yang menggunkan pupuk pada lahan pertanian secara berlebihan, serta pemeliharaan hewan ternak disekitar sungai yang membuang limbah kotorannya langsung tanpa pengolahan limbah, memperburuk kondisi air Sungai Telagawaja. Sehingga diperlukan kajian mengenai kondisi Sungai Telagawaja terkini. Penelitian ini dilaksanakan pada bulan Febuari 2021. Lokasi pengambilan data bertempat di perairan Sungai Telagawaja dengan 3 tiitk pengambilan sampel. Paramater yang diamati meliputi suhu, TSS, TDS, ph, DO, COD, BOD, dan fecal coli. Hasil parameter yang didapat dianalisis dengan metode STORET untuk baku mutu kelas 1 untuk peruntukan air minum berdasarkan Peraturan Peraturan Gubernur Bali Nomor 16 Tahun 2016 Tentang Standar Baku Mutu Lingkungan (Baku Mutu Kualitas Air Berdasarkan Kelas). Hasil yang didapatkan di ketiga titik pengambilan sampel Sungai Telagawaja termasuk pada kondisi buruk. Nilai untuk masing bagian sungai yaitu pada bagian hulu Sungai Telagawaja dengan skor -40, pada bagian tengah Sungai Telagawaja dengan skor -38, dan pada bagian hilir Sungai Telagawaja dengan skor -40. Ketiga skor yang didapat melebih nilai skor 31 yang artinya kondisi air di Sungai Telagawaja dalam kondisi buruk atau dalam kondisi tercemar berat.

Pola pertumbuhan rumput laut (Eucheuma cottonii) yang menggunakan kantong dan tanpa kantong di perairan pantai Geger, Nusa Dua, Bali Made Tri Loka; Ayu Putu Wiweka Krisna Dewi; Ni Putu Putri Wijayanti
Jurnal Biologi Udayana Vol 27 No 2 (2023): JURNAL BIOLOGI UDAYANA
Publisher : Program Studi Biologi, Fakultas Matematika dan Ilmu Pengetahuan Alam, Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/JBIOUNUD.2023.v27.i02.p01

Penelitian ini dilakukan untuk mengetahui pola pertumbuhan rumput laut (Eucheuma cottonii) yang menggunakan kantong dan tanpa kantong di perairan pantai Geger pada bulan Oktober-November 2022. Pengambilan data dilakukan seminggu sekali selama 6 minggu penelitian. Metode budidaya yang digunakan dalam penelitian ini adalah metode lepas dasar dengan perlakuan menggunakan kantong dan tanpa kantong (konvensional). Penelitian ini di rancang dengan menggunakan Rancangan Acak Lengkap (RAL). Untuk mengetahui data SGR (laju pertumbuhan berat per hari) dapat dianalisis menggunakan uji One Way Anova, dengan tingkat signifikan 5% dari hasil analisisnya yaitu 95%. Uji statistik dibantu dengan menggunakan software SPSS PC. var 25.0. Hasil penelitian ini menunjukkan bahwa pertumbuhan rumput laut pada penggunaan kantong lebih tinggi dari tanpa kantong. Berat rumput laut pada penggunaan kantong di minggu ke-6 sebesar 666 g dan tanpa kantong di minggu ke-6 hanya sebesar 375 g. Specific Growth Rate (SGR) pada penggunaan kantong sebesar 5,53%/hari sedangkan perlakuan tanpa kantong sebesar 2,12%/hari. Hal ini terjadi karena banyak rumput laut yang patah akibat arus dan dimakan oleh predator pada perlakuan tanpa kantong. Parameter kualitas air yang diukur selama penelitian mendapatkan kisaran hasil yang sesuai untuk pertumbuhan rumput laut yaitu, suhu 26,7-30ºC, salinitas 31-35 ppt, pH 7,1-8,0, DO 5,9-6,7 mg/L, nitrat 0,034-0,057 mg/L, fosfat 0,011-0,066 mg/L, kecepatan arus 0,31-0,50 m/s dan kecerahan 60-107 cm. Nilai pengukuran nitrat dan fosfat di perairan Pantai Geger tergolong rendah namun masih dapat mendukung dalam kegiatan budidaya rumput laut. Pertumbuhan rumput laut pada penggunaan kantong lebih baik dari pada tanpa kantong dengan selisih berat sebesar 291 g pada akhir penelitian. Hasil ini masuk kategori baik dalam budidaya rumput laut.

LENGTH-WEIGHT RELATIONSHIP, GROWTH PATTERN AND CONDITION OF MIDAS CICHLID FISH (AMPHILOPHUS CITRINELLUS) IN LAKE BATUR, BANGLI REGENCY, BALI Putu Tegar Wiguna Putra; Ayu Putu Wiweka Krisna Dewi; Nyoman Dati Pertami
INTERNATIONAL JOURNAL OF ECONOMIC LITERATURE Vol. 2 No. 12 (2024): December
Publisher : Adisam Publisher

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

Midas cichlid fish (Amphilophus citrinellus) is often referred to as a pest fish because it is a fish that can only prey but does not produce sufficient economic value, because it reproduces very quickly. This research aims to determine the length-weight relationship, growth patterns and condition of Midas cichlid fish as well as the water conditions of Lake Batur. The research was carried out using quantitative descriptive methods, with a purposive sampling method for sampling. The sampling locations were at three stations. The fishing gear used is gill nets. The total number of fish caught during data collection was 287 individuals. Based on the results of the analysis of the length-weight relationship of midas cichlid fish (Amphilophus citrinellus) in Lake Batur, the equation W=0.0215L2.92 was obtained, where from this equation the value b = 2.92 was obtained. The t test was carried out and it was found that the b value was <3 so it could be concluded that the growth pattern was negative allometric. The relative condition (Kn) of male and female Midas cichlid fish in Lake Batur is in good condition (1.01), with a less flattened body shape (fusiform). The condition of the water parameters in Lake Batur during the research was classified as good and stable for the survival of aquatic biota, one of which was the Midas cichlid fish with a pH value of 7.1-7.5; DO 5.3-6.5 mg/L; Temperature 27.8-29.6°C and brightness 1.5-1.9 m.

Co-Authors Akbar Akbar Annisa Nur Safitri Utomo Arliza Cynthia Razali Devita Eka Saputri Dewa Adi Putra Dewa Ayu Angga Pebriani Endang Wulandari Suryaningtyas Gede Pasek Sutedja Gusti Ayu Manik Pradnyani I Putu Eka Mahendra 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 Pande Putu Suji Dian Antari Ni Putu Putri Wijayanti Ni Putu Sintha Maharani 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 Yuli Krisnawati Yuni Debora Prasicilia Sitorus

Title

Found 27 Documents
Search

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Title Search

Found 27 Documents Search

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Title

Found 27 Documents
Search